2SK303-3-TB-E

$0.17

Description：NCH J-FET
Series：*

SKU:92b533e01438 Category: JFETs Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：NCH J-FET
Series：*
Mfr：onsemi
Package：Bulk
FET Type：-
Voltage - Breakdown (V(BR)GSS)：-
Drain to Source Voltage (Vdss)：-
Current - Drain (Idss) @ Vds (Vgs=0)：-
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：-
Input Capacitance (Ciss) (Max) @ Vds：-
Resistance - RDS(On)：-
Power - Max：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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2SK303-3-TB-E

Overview

The 2SK303-3-TB-E is a small signal N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It operates in depletion mode with a maximum drain-source breakdown voltage of 30V and a continuous drain current rating of 20mA. The device utilizes a silicon junction FET technology housed in a SOT-23 surface-mount package. It supports an operating temperature range up to 150°C and complies with RoHS standards, indicating it is halogen-free.

Feature Summary

Designed for low-frequency general-purpose amplifier applications
Suitable for use as analog switches and impedance conversion stages
Capable of functioning in constant current supply circuits

Applications

Potentiometer control circuits
Low-frequency audio amplifiers
Analog switching systems
Impedance matching networks

Procurement Notes

Verify the manufacturer designation carefully, as the 2SK303 series was originally developed by UNISONIC TECHNOLOGIES CO., LTD. Confirm that the specific suffix -3-TB-E corresponds to the intended SOT-23 packaging and lead-free halogen-free specifications required for the assembly process. Ensure the component meets current environmental compliance standards before integration.

Selection Notes

Select this component when a depletion-mode JFET is required for low-noise, low-frequency signal processing. The 30V breakdown voltage and 20mA current limit define its operational boundaries. Consider the SOT-23 package size for space-constrained designs requiring surface-mount technology compatibility.

Part Context

This part belongs to the 2SK303 family of low-frequency general-purpose JFETs. While the base model is widely documented under UNISONIC TECHNOLOGIES branding, the onsemi designation suggests a specific distribution or rebranding channel. The -TB-E suffix typically denotes the SOT-23 package variant within this product line.

Replacement Considerations

Direct substitutes include other N-channel JFETs with similar Vds and Id ratings, such as the 2N5457 or J111, though pinouts and exact electrical characteristics must be verified. Check datasheets for gate leakage current and transconductance differences to ensure circuit stability.

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

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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.