IEC 63563-8:2025

Qi Specification version 2.0 - Part 8: NFC Tag Protection

IEC 63563-8:2025 provides guidelines for detecting the presence of a Radio Frequency Identification (RFID) tag or Near Field Communication (NFC) card within the operating range of the Power Transmitter and preventing damage to the tag or card.

Spécification Qi version 2.0 - Partie 8 : Protection des étiquettes NFC

IEC 63563-8:2025 fournit des lignes directrices pour détecter la présence d'une étiquette d'identification par radiofréquence (RFID) ou d'une carte de communication en champ proche (NFC) dans la plage de fonctionnement de l'émetteur de puissance et pour éviter d'endommager l'étiquette ou la carte.

General Information

• Status: Published
• Publication Date: 13-Feb-2025
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: TA 15 - Wireless Power Transfer
• Drafting Committee: WG 1 - TC 100/TA 15/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 14-Feb-2025
• Completion Date: 07-Mar-2025

Overview

IEC 63563-8:2025 - Qi Specification version 2.0, Part 8: NFC Tag Protection provides guidelines for detecting the presence of RFID tags and NFC cards within the operating range of a wireless Power Transmitter and for preventing damage to those tags or cards. Published by the IEC and based on the Wireless Power Consortium (WPC) Qi v2.0 NFC Tag Protection document, this standard addresses integration, detection procedures, and test methods to safely co‑exist wireless charging (Qi) and NFC/RFID functionality.

Key Topics

• Scope & Compliance: Clarifies that provisions are mandatory unless marked otherwise and follows ISO/IEC directives for normative language (shall/should/may).
• NFC tag detection: Methods for detecting passive NFC/RFID tags using dedicated NFC hardware or by leveraging power‑transfer signals.
• Antenna and transceiver integration: Guidelines for integrating an NFC antenna and NFC transceiver into Power Transmitter products to ensure reliable detection and minimal interference with wireless power transfer.
• Polling and detection modes: Procedures for NFC polling and recommended detection sequences during both standby and active power-transfer phases (including low‑power detection).
• Power Receiver considerations: Design guidance and recommended detection procedures for Power Receiver products to help protect nearby NFC tags.
• Test methods: Definition and construction of a Test PICC (test NFC card) including calibration and a stepwise test procedure to evaluate the impact of a Power Transmitter on NFC tags.
• Documentation & references: Cross‑references to WPC resources, Electropedia, and IEC publication tools.

Applications and Who Uses It

This standard is intended for:

• Wireless charging device manufacturers (Power Transmitters and Receivers) integrating Qi wireless power with NFC coexistence.
• Hardware and antenna designers working on coil layouts and NFC antenna placement.
• Test labs and compliance engineers performing NFC tag protection testing using the Test PICC procedures.
• Product managers and systems architects ensuring products meet safety and interoperability expectations when NFC cards may be present on charging surfaces.

Practical applications include preventing data loss or physical damage to contactless payment cards, access badges, transit cards, and other RFID/NFC tags placed on or near wireless chargers.

Related Standards

• Qi Specification family (Wireless Power Consortium)
• IEC system documents on Wireless Power Transfer and Foreign Object Detection
• Relevant ISO/IEC directives and RFID/NFC specifications referenced by the WPC and IEC documents

Keywords: IEC 63563-8:2025, Qi Specification 2.0, NFC Tag Protection, NFC tag detection, RFID protection, wireless charging, Power Transmitter, Power Receiver, Test PICC, NFC antenna integration.

Standards Content (Sample)

IEC 63563-8 ®
Edition 1.0 2025-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Qi Specification version 2.0 –
Part 8: NFC Tag Protection
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IEC 63563-8 ®
Edition 1.0 2025-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Qi Specification version 2.0 –

Part 8: NFC Tag Protection
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.99, 35.240.99 ISBN 978-2-8327-0191-1

- 2 - IEC 63563-8:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
QI SPECIFICATION VERSION 2.0 –
Part 8: NFC Tag Protection
FOREWORD
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not be held responsible for identifying any or all such patent rights.
IEC 635-8 has been prepared by technical area 15: Wireless Power Transfer, of IEC
technical committee 100: Audio, video and multimedia systems and equipment. It is an
International Standard.
It is based on Qi Specification version 2.0, NFC Tag Protection and was submitted as a Fast-
Track document.
The text of this International Standard is based on the following documents:
Draft Report on voting
//FDIS //RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
The structure and editorial rules used in this publication reflect the practice of the organization
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This document was developed in accordance with ISO/IEC Directives, Part 1 and ISO/IEC
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x reconfirmed,
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- 4 - IEC 63563-8:2025 © IEC 2025
WIRELESS POWER
CONSORTIUM
Qi Specification
NFC Tag Protection
Version 2.0
April 2023
DISCLAIMER
The information contained herein is believed to be accurate as of the date of publication,
but is provided “as is” and may contain errors. The Wireless Power Consortium makes no
warranty, express or implied, with respect to this document and its contents, including any
warranty of title, ownership, merchantability, or fitness for a particular use or purpose.
Neither the Wireless Power Consortium, nor any member of the Wireless Power
Consortium will be liable for errors in this document or for any damages, including indirect
or consequential, from use of or reliance on the accuracy of this document. For any furthe r
explanation of the contents of this document, or in case of any perceived inconsistency or ambiguity
of interpretation, contact: [e-mail].
RELEASE HISTORY
Specification Version Release Date Description
2.0 April 2023 Initial release of the v2.0 Qi Specification.

- 6 - IEC 63563-8:2025 © IEC 2025
Table of Contents
1  General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Structure of the Qi Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Power Profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2  Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 NFC tag detection and protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3  NFC tag protection and device communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4  NFC tag detection by a Power Transmitter Product. . . . . . . . . . . . . . . . . . . . . . . 12
4.1 NFC antenna integration in a Power Transmitter Product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 NFC transceiver integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3 NFC polling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5  NFC tag detection by a Power Receiver Product . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1 Design guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2 Recommended detection procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6  Tag detection using the NFC unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Low power object detection in standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Low power object detection in the power transfer phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7  Testing the impact of a Power Transmitter Product on an NFC tag . . . . . . . . . . 23
7.1 Test PICC dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Construction of the Test PICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3 Test PICC calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4 Test procedure using the Test PICC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1  General
The Wireless Power Consortium (WPC) is a worldwide organization that aims to develop and
promote global standards for wireless power transfer in various application areas. A first
application area comprises flat-surface devices such as mobile phones and chargers in the
Baseline Power Profile (up to 5 W) and Extended Power Profile (above 5 W).
1.1 Structure of the Qi Specification
General documents
ƒ Introduction
ƒ Glossary, Acronyms, and Symbols
System description documents
ƒ Mechanical, Thermal, and User Interface
ƒ Power Delivery
ƒ Communications Physical Layer
ƒ Communications Protocol
ƒ Foreign Object Detection
ƒ NFC Tag Protection
ƒ Authentication Protocol
- 8 - IEC 63563-8:2025 © IEC 2025
1.2 Scope
The QiSpecification,NFC/RFIDCardProtection (this document) provides guidelines for detecting
the presence of a Radio Frequency Identification (RFID) tag or Near Field Communication (NFC)
card within the operating range of the Power Transmitter and preventing damage to the tag or
card.
1.3 Compliance
All provisions in the QiSpecification are mandatory, unless specifically indicated as recommended,
optional, note, example, or informative. Verbal expression of provisions in this Specification follow
the rules provided in ISO/IEC Directives, Part 2.
Table 1: Verbal forms for expressions of provisions
Provision Verbal form
requirement “shall” or “shall not”
recommendation “should” or “should not”
permission “may” or “may not”
capability “can” or “cannot”
1.4 References
For undated references, the most recently published document applies. The most recent WPC
publications can be downloaded from http://www.wirelesspowerconsortium.com.

1.5 Conventions
1.5.1 Notation of numbers
ƒ Real numbers use the digits 0 to 9, a decimal point, and optionally an exponential part.
ƒ Integer numbers in decimal notation use the digits 0 to 9.
ƒ Integer numbers in hexadecimal notation use the hexadecimal digits 0 to 9 and A to F, and are
prefixed by "0x" unless explicitly indicated otherwise.
ƒ Single bit values use the words ZERO and ONE.
1.5.2 Tolerances
Unless indicated otherwise, all numeric values in the QiSpecification are exactly as specified and do
not have any implied tolerance.
1.5.3 Fields in a data packet
A numeric value stored in a field of a data packet uses a big-endian format. Bits that are more
significant are stored at a lower byte offset than bits that are less significant. Table 2 and Figure 1
provide examples of the interpretation of such fields.
Table 2: Example of fields in a data packet
b b b b b b b b
7 6 5 4 3 2 1 0
(msb)
B
16-bit Numeric Data Field
B
(lsb)
B Other Field (msb)
B 10-bit Numeric Data Field (lsb) Field
Figure 1. Examples of fields in a data packet
16-bit Numeric Data Field
b b b b b b b b b b b b b b b b
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
B B
0 1
10-bit Numeric Data Field
b b b b b b b b b b
9 8 7 6 5 4 3 2 1 0
B B
2 3
- 10 - IEC 63563-8:2025 © IEC 2025
1.5.4 Notation of text strings
Text strings consist of a sequence of printable ASCII characters (i.e. in the range of 0x20 to 0x7E)
enclosed in double quotes ("). Text strings are stored in fields of data structures with the first
character of the string at the lowest byte offset, and are padded with ASCII NUL (0x00) characters
to the end of the field where necessary.
EXAMPLE: The text string “WPC” is stored in a six-byte fields as the sequence of characters 'W', 'P', 'C', NUL,
NUL, and NUL. The text string “M:4D3A” is stored in a six-byte field as the sequence 'M', ':', '4', 'D',
'3', and 'A'.
1.5.5 Short-hand notation for data packets
In many instances, the QiSpecification refers to a data packet using the following shorthand
notation:
/
In this notation, refers to the data packet's mnemonic defined in the QiSpecification,
CommunicationsProtocol, and refers to a particular value in a field of the data packet.
The definitions of the data packets in the QiSpecification,CommunicationsProtocol, list the
meanings of the modifiers.
For example, EPT/cc refers to an End Power Transfer data packet having its End Power Transfer
code field set to 0x01.
1.6 Power Profiles
A Power Profile determines the level of compatibility between a Power Transmitter and a Power
Receiver. Table 3 defines the available Power Profiles.
ƒ BPPPTx: A Baseline Power Profile Power Transmitter.
ƒ EPP5PTx: An Extended Power Profile Power Transmitter having a restricted power transfer
()pot
capability, i.e. P = 5 W.
L
ƒ EPPPTx: An Extended Power Profile Power Transmitter.
ƒ BPPPRx: A Baseline Power Profile Power Receiver.
ƒ EPPPRx: An Extended Power Profile Power Receiver.
Table 3: Capabilities included in a Power Profile
Feature BPP PTx EPP5 PTx EPP PTx BPP PRx EPP PRx
Ax or Bx design Yes Yes No N/A N/A
MP-Ax or MP-Bx design No No Yes N/A N/A
Baseline Protocol Yes Yes Yes Yes Yes
Extended Protocol No Yes Yes No Yes
Authentication N/A Optional Yes N/A Optional

- 12 - IEC 63563-8:2025 © IEC 2025
2  Introduction
A Power Transmitter can damage Near Field Communication (NFC) tags present in the Operating
Volume during any phase if the emitted power levels are above the defined limit values (see
Section 2, Introduction, and its subsections).
For more information about NFC tags, see https://nfc-forum.org/.
The highest risk of damage occurs in the powertransfer phase, as shown in Table 4.
Table 4: Risk of damage to NFC tags by protocol phase
Protocol phase Risk of damage
Ping phase Possible
Configuration phase Possible
Negotiation phase Possible
Power transfer phase Likely
2.1 NFC tag detection and protection
The goal of this document is to describe how NFC tags can be detected and protected by extending
the functionality of the Power Transmitter Product or Power Receiver Product.
2.1.1 NFC tag detection
By integrating an NFC transceiver into a Power Transmitter Product or into a Power Receiver
Product, any NFC tag that can be present between the Power Transmitter Product and the Power
Receiver Product can be reliably detected. The capabilities of the devices determines which one
will execute NFC tag detection.
ƒ If neither the Power Transmitter Product nor the Power Receiver Product can detect NFC tags,
NFC tag protection does not happen and any NFC tag in the Operating Volume are susceptible
to damage.
ƒ If either the Power Transmitter Product or the Power Receiver Product (but not both) can
detect NFC tags, that device should execute tag detection.
ƒ If both the Power Transmitter Product and the Power Receiver Product can detect NFC tags,
one or both of the devices should execute tag detection.
Selection of the device that should execute NFC tag detection happens when the Power Transmitter
and Power Receiver exchange information in the negotiation phase.
See Section 3, NFCtagprotectionanddevicecommunication, for further information.

2.1.2 Protecting NFC tags
A Power Transmitter can protect NFC tags by maintaining the magnetic field levels in all phases of
the power transfer protocol below a defined limit value. This limit is defined by specific
measurement methods using the Test Proximity Integrated Circuit Card (PICC) described in
Section 7, TestingtheimpactofaPowerTransmitterProductonanNFCtag, and helps to ensure that
NFC tags are not damaged.
NOTE: In rare cases, damage can still occur even at magnetic field levels below the limit value.

- 14 - IEC 63563-8:2025 © IEC 2025
3  NFC tag protection and device communication
A Power Receiver should send a GRQ/xcap data packet to an EPP Power Transmitter during the
negotiation phase to examine the Power Transmitter Product’s extended capabilities. The XCAP
data packet returned in response provides the result of any NFC tag detection operation it has
executed. See Section 9.5, QiSpecification,CommunicationsProtocol, for more information.

The Power Receiver Product should perform one of the actions listed in Table 5 depending on
values contained in the TPS, TPE, and TDS fields of the XCAP data packet.
Table 5: Power Receiver actions based on XCAP data
XCAP data XCAP meaning Power Receiver Product action
TPS = ZERO The Power Transmitter Product does The Power Receiver Product should perform NFC
not support NFC tag detection. tag detection as defined in Section 5, NFC tag
detection by a Power Receiver Product.
TPS = ONE The Power Transmitter Product The power transfer proceeds as defined in the
supports NFC tag detection and has not Qi Specification, Communications Protocol.
TDE = ONE
detected a tag.
TDS = 0
TPS = ONE The Power Transmitter Product To proceed, the Power Receiver Product should
supports NFC tag protection but has not select one of the following actions:
TDE = ZERO
executed the latter.
ƒ Send an EPT/rep data packet and perform tag
TDS = 0
detection itself as defined in Section 5, NFC
tag detection by a Power Receiver Product
ƒ Send an EPT/ptxnfc data packet to request
the Power Transmitter Product to perform
tag detection. This should cause the Power
Transmitter Product to remove its Power
Signal and perform NFC tag detection.
TPS = ONE The Power Transmitter Product The Power Receiver Product should select one of
supports NFC tag protection and has the following actions to proceed:
TDE = ONE
detected a single tag.
ƒ Send an EPT/rep data packet itself as defined
TDS = 1
NOTE: The Power Transmitter Product in Section 5, NFC tag detection by a Power
may not be able to distinguish between Receiver Product.
an NFC tag and the NFC interface of the
ƒ Send an EPT/ptxnfc data packet to request
Power Receiver Product.
the Power Transmitter to perform tag
detection. This should cause the Power
Transmitter Product to remove its Power
Signal and perform NFC tag detection.
ƒ Proceed to the power transfer phase and
limit its drawing the power level to 5 W.
ƒ Proceed at full power if it knows that its own
NFC transceiver is active in the Operating
Volume.
ƒ Send an EPT/nfc data packet and power
transfer terminates.
Note: Whenever an NFC tag is potentially in the
Operating Volume, the Power Receiver P
...