SD1274

$43.70

Description：RF TRANS NPN 16V M135
Series：-

SKU:15866908ceb6 Category: Bipolar RF Transistors Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：RF TRANS NPN 16V M135
Series：-
Mfr：STMicroelectronics
Package：Box
Transistor Type：NPN
Voltage - Collector Emitter Breakdown (Max)：16V
Frequency - Transition：-
Noise Figure (dB Typ @ f)：-
Gain：10dB
Power - Max：70W
DC Current Gain (hFE) (Min) @ Ic, Vce：20 @ 250mA, 5V
Current - Collector (Ic) (Max)：8A
Operating Temperature：200°C (TJ)
Mounting Type：Surface Mount
Package / Case：M135
Supplier Device Package：M135
Grade：-
Qualification：-

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SD1274

Overview

The SD1274 is a Class C epitaxial silicon NPN planar transistor designed primarily for VHF communications. It utilizes an emitter ballasted die to ensure stable operation. The device features a collector-base voltage of 36V and a collector-emitter voltage of 16V. Maximum collector current is rated at 8A, with a junction temperature capability of 200°C. It is housed in the M135 surface mount package.

Feature Summary

Class C epitaxial silicon NPN planar construction
Emitter ballasted die design for stability
Optimized for VHF communication applications

Applications

VHF mobile communications
RF power amplification
Microwave transistor modules

Procurement Notes

The SD1274 is officially listed as obsolete and no longer manufactured by STMicroelectronics. Procurement should focus on verified substitute components such as the BFP182RE7764HTSA1 from Infineon Technologies. Verify component authenticity and condition when sourcing from third-party distributors due to end-of-life status.

Selection Notes

Select this component for high-power VHF applications requiring robust thermal performance up to 200°C junction temperature. The M135 surface mount package suits automated assembly processes. Consider the 8A maximum collector current rating for load matching. Evaluate alternative active devices if new production designs are required due to obsolescence.

Part Context

This part belongs to the family of RF bipolar transistors intended for microwave and VHF frequencies. It shares design characteristics with variants like the SD1274-01, which also targets VHF communications using similar epitaxial silicon technology. The M135 package defines its physical interface constraints within larger RF systems.

Replacement Considerations

Public confirmed substitutes include the BFP182RE7764HTSA1 from Infineon Technologies. Verify pin compatibility and electrical parameters before substitution.

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.