B39431B3757U310

$2.44

Description：FILTER SAW 434.42MHZ 8SMD
Series：-
Mfr：Qualcomm (RF front-end (RFFE) filters)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:2d9d59982608 Category: SAW Filters Brand: Qualcomm (RF front-end (RFFE) filters)

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Product introduction

Product Detailed Parameters

Description：FILTER SAW 434.42MHZ 8SMD
Series：-
Mfr：Qualcomm (RF front-end (RFFE) filters)
Package：Tape & Reel (TR),Cut Tape (CT)
Frequency - Center：434.42MHz
Bandwidth：120kHz
Insertion Loss：2dB
Ratings：-
Applications：Remote Control
Mounting Type：Surface Mount
Package / Case：8-SMD, No Lead
Height (Max)：0.053" (1.35mm)
Size / Dimension：0.197" L x 0.197" W (5.00mm x 5.00mm)

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B39431B3757U310

Overview

The B39431B3757U310 is an obsolete Surface Acoustic Wave (SAW) filter manufactured by Qualcomm. Designed for remote control applications, it operates at a center frequency of 434.42MHz with a bandwidth of 120kHz. The component utilizes an 8-SMD, No Lead package measuring 5.00mm x 5.00mm x 1.35mm maximum height. It is supplied in Tape & Reel packaging and complies with RoHS3 standards.

Feature Summary

Surface Acoustic Wave technology for RF filtering
Optimized for remote control signal processing
Compact surface-mount design

Applications

Remote control systems
RF front-end modules

Procurement Notes

This component is officially marked as obsolete and no longer manufactured. Procurement must rely on available substitute part numbers or secondary market sources. Verify compatibility with the designated replacement before integration into new designs.

Selection Notes

Engineered specifically for remote control frequencies around 434.42MHz. The 8-pin SMD form factor suits space-constrained layouts. Due to obsolescence, engineers should evaluate alternative components from the same manufacturer family that maintain similar acoustic properties and footprint dimensions.

Part Context

Part of the Qualcomm RFFE portfolio utilizing SAW technology. This series targets low-loss performance in small form factors for wireless connectivity. The specific model addresses niche remote control bands within the broader RF filtering ecosystem.

Replacement Considerations

Public confirmed substitutes include B39431B3743H110 and B39431B3750U310. These alternatives offer comparable SAW characteristics for remote control applications.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.