Product Change Notice (PCN-26041701) on Raytac MDBT40 modules(Nordic nRF51822 solution)

New Taipei, Taiwan / Los Angeles, USA, 04/23/2026

Raytac announces a Product Change Notice (PCN-26041701) for below modules, change effective on the Date Codes stated within.

Device Affected:
1. MDBT40-256RV3: 618 and after
2. MDBT40-256V3: 618 and after

The supplier(of the original chip antenna) notified Raytac in March 2026 that the original chip antenna has reached its end-of-life (EOL) status, thus the introduction of an alternative(new) chip antenna from the same supplier to ensure long term supply continuity.

There are no changes on Form, Fit, Function, and Quality of Reliability. Only change in Chip Antenna Appearance.

Upon receiving this notice, our R&D team promptly conducted comprehensive validation. The results confirm that there is no impact on RF performance, EMC compliance, or related certifications.
In conclusion, all existing certifications and technical documentations remain valid.


The change is already effective as the existing inventory of the original chip antenna has been depleted. All production batches are already using the new chip antenna.

We kindly invite our customers, distributors, and partners to update your records accordingly. For any questions or support, and further document requests regarding this update, feel free to reach out to Raytac Sales Team via: sales@raytac.com.



Raytac Corporation 勁達國際電子股份有限公司 / Raytac Corporation (USA) / abietec Inc.
A Bluetooth, Wi-Fi, and LoRa Module Maker/ODM & OEM Manufacturer based on
Nordic nRF54; nRF53: nRF52; nRF51; nRF7002
Infineon: CYW55912
NXP: RW610, RW612
Semtech: SX1262

Bluetooth Specification: BT6 ; BT5.4 ; BT5.3 ; BT5.2.
Wi-Fi Specification: Wi-Fi 6
LoRa Specification: LoRaWAN
Zephyr Project Silver Member

All products are FCC/IC/CE/Telec/KC/RCM/SRRC/NCC/WPC/RoHS/Reach Pre-Certified.
http://www.raytac.com
https://www.raytac.com/contact/
email: sales@raytac.com
Tel: +886-2-3234-0208(TW)/+1-626-328-3827(USA)

Immediate Raytac Product Change Notice (PCN-25121801) Announcement on u.FL Connector Replacement

Raytac would like to announce an immediate Product Change Notice (PCN-25121801) for below modules, change effective on the Date Codes stated within.

Device Affected:
1. MDBT42Q-U512KEN: 601 and after
2. MDBT42Q-U512KV2: 549 and after
3. MD8521P1-U001: 601 and after
4. MDBT50Q-U512KEN: 601 and after
5. MDBT50Q-U1MEN: 601 and after
6. MDBT50Q-U512K: 601 and after
7. MDBT50Q-U1MV2: 550 and after
8. MDBT53-U1M: 601 and after
9. AN54LQ-U05: 601 and after
10. AN54LQ-U10: 601 and after
11. AN54LQ-U15: 551 and after
12. AN7002Q-U: 601 and after
13. AN02U53U: 601 and after

There are no changes on Form, Fit, Function, and Quality of Reliability. Only change in u.FL Connector Appearance. All existing certifications and technical documentations remain valid.

We kindly invite our customers, distributors, and partners to update your records accordingly. For any questions or support regarding this update, feel free to reach out via: sales@raytac.com.




Raytac Corporation 勁達國際電子股份有限公司 / Raytac Corporation (USA) / abietec Inc.
A Bluetooth, Wi-Fi, and LoRa Module Maker/ODM & OEM Manufacturer based on
Nordic nRF54; nRF53: nRF52; nRF51; nRF7002
Semtech Specification: SX1262


Bluetooth Specification: BT6 ; BT5.4 ; BT5.3 ; BT5.2.
Wi-Fi Specification: Wi-Fi 6
LoRa Specification: LoRaWAN


All products are FCC/IC/CE/Telec/KC/RCM/SRRC/NCC/WPC/RoHS/Reach Pre-Certified.
http://www.raytac.com
https://www.raytac.com/contact/
email: sales@raytac.com
Tel: +886-2-3234-0208(TW)/+1-626-217-3139(USA)


Raytac nRF52840 Module MDBT50Q FCC ID Granted

Raytac’s EE policy (Easy Employee) core is to provide the pre-certified modules.

Benefits from this policy, products built by Raytac’s module may save or reduce the procedure in certification application process which successfully improved Time To Market efficiency and Cost Effective for all customers.

Raytac’s latest module, MDBT50Q series module employed Nordic nRF52840 solution has developed 3 lines with different antenna type.

MDBT50Q-1M: Chip Antenna

MDBT50Q-P1M: PCB Antenna

MDBT50Q-U1M: u.FL connector with external Antenna.

We are glad to announce that MDBT50Q series modules have FCC Part 15 C Regulation Certificated granted with FCC ID: SH6MDBT50Q.

FCC Category: Portable Device

Product Name: Bluetooth Low Energy & IEEE802.15.4 Combo Module

Certified Protocol : BT5 & IEEE 802.15.4

Bluetooth-side

Certification Detail

Nordic nRF52840 MDBT50Q FCC Certificate
Nordic nRF52840 Module By Raytac MDBT50Q FCC Certification

Certification Item

MDBT50Q-1M (Chip Antenna Version)

MDBT50Q-P1M (PCB Antenna Version)

MDBT50Q-U1M (External Antenna Version, Listed in below)

MDBT50U Antenna Detail

Raytac Corporation
A BT4.1 & BT4.2 & BT5 module maker based on Nordic nRF51 & nRF52 solution 
(nRF51822 & nRF51422 & nRF52832 & nR52810 & nRF52840)
www.raytac.com          email: cs@raytac.com          Tel: +886.2.3234.0208