BF245B

Description：RF MOSFET JFET 30V TO92
Series：-

SKU:112f63e5fe0b Category: RF FETs, MOSFETs Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：RF MOSFET JFET 30V TO92
Series：-
Mfr：onsemi
Package：Bulk
Technology：JFET
Frequency：-
Gain：-
Voltage - Test：-
Current Rating (Amps)：100mA
Noise Figure：-
Current - Test：-
Power - Output：-
Voltage - Rated：30 V
Grade：-
Qualification：-
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 Long Body
Supplier Device Package：TO-92 (TO-226)
Configuration：N-Channel

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BF245B

Overview

The BF245B is an N-channel depletion-mode Junction Field-Effect Transistor (JFET) designed for VHF and UHF amplifier applications. It features a TO-92 package with three pins: Gate, Source, and Drain. The device operates within a junction temperature range of -55°C to +150°C and has a total device dissipation of 350 mW at 25°C ambient temperature. Key electrical characteristics include a drain-gate voltage rating of 30 V and a gate-source breakdown voltage of 30 V. The zero-gate voltage drain current ranges from 6 mA to 15 mA, while the gate-source cut-off voltage spans from -0.4 V to -2.2 V.

Feature Summary

Designed specifically for VHF and UHF amplifier circuits
N-channel depletion mode operation
Robust thermal performance with high junction temperature capability

Applications

VHF amplifiers
UHF amplifiers

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the part number matches the BF245B designation and ensure the package type corresponds to the standard TO-92 outline. Review the latest documentation for any updates regarding manufacturing origin or process changes.

Selection Notes

Select this component when designing circuits requiring N-channel JFETs for VHF or UHF frequency bands. Ensure the required drain current and voltage ratings align with the specified maximum limits. Consider the TO-92 package constraints for thermal management and board space requirements during the design phase.

Part Context

This component belongs to the BF245 series, which includes variants such as the BF245A and BF245C. These parts share similar structural designs but differ in specific electrical parameters like threshold voltage and transconductance. The series is historically associated with Fairchild Semiconductor and is now distributed under various semiconductor brands.

Replacement Considerations

Potential substitutes include other N-channel depletion JFETs suitable for VHF/UHF applications. Verify pinout compatibility and ensure that critical parameters such as breakdown voltage and transconductance meet or exceed the original specifications.

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.