SD1405

$43.09

Description：RF TRANS NPN 18V M174
Series：-

SKU:035848a04d99 Category: Bipolar RF Transistors Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：RF TRANS NPN 18V M174
Series：-
Mfr：STMicroelectronics
Package：Box
Transistor Type：NPN
Voltage - Collector Emitter Breakdown (Max)：18V
Frequency - Transition：-
Noise Figure (dB Typ @ f)：-
Gain：13dB
Power - Max：270W
DC Current Gain (hFE) (Min) @ Ic, Vce：20 @ 5A, 5V
Current - Collector (Ic) (Max)：20A
Operating Temperature：200°C (TJ)
Mounting Type：Surface Mount
Package / Case：M174
Supplier Device Package：M174
Grade：-
Qualification：-

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SD1405

Overview

The SD1405 is a Class C epitaxial silicon NPN planar transistor designed primarily for HF communications. It operates with a collector-emitter voltage of 12.5V and features a maximum power dissipation of 270W. The device utilizes diffused technology and is housed in the M174 surface mount package.

Feature Summary

Epitaxial silicon NPN planar construction optimized for high-frequency operation
Designed specifically for Class C amplifier applications in HF bands
Surface mount packaging facilitates automated assembly processes

Applications

HF communications equipment
High-frequency RF amplification stages
Class C transmitter output stages

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors. Confirm RoHS compliance status as historical data indicates non-compliance. Ensure storage conditions maintain device integrity prior to installation.

Selection Notes

Select this component for high-power HF applications requiring robust NPN performance. Evaluate thermal management requirements due to significant power dissipation capabilities. Verify package compatibility with existing PCB layouts before integration.

Part Context

This part belongs to STMicroelectronics' discrete semiconductor product line, specifically within the bipolar RF transistor category. It serves specialized roles in radio frequency engineering where high efficiency and power handling are critical for signal transmission.

Replacement Considerations

No public confirmed substitute part numbers are available in official documentation. Consult manufacturer guidelines for direct replacements or updated series equivalents.

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.