2SC3857 NPN bipolar transistor designed for audio amplifier output stages. Features 200V collector-emitter breakdown voltage, 15A collector current, and 150W power dissipation.
Mfr Part #:

2SC3857

Available from 1 distributors
Mfr Name: Sanken
Sanken
NPN bipolar transistor designed for audio amplifier output stages. Features 200V collector-emitter breakdown voltage, 15A collector current, and 150W power dissipation.
Total Stock: 229 pcs
$ Price Range: $1.56

2SC3857 Available from 1 distributor

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2SC3857 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Automotive Grade
Base Current
Collector Output Capacitance
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage (Min)
Current
DC Current Gain (Minimum/Maximum @ VCE=4 V, IC=5 A)
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter-Base Breakdown Voltage
Frequency
Junction Temperature
Mounting Type
Operating Temperature
Power
Storage Temperature
Storage Temperature Range
Supplier Device Package
Transistor Type
Transition Frequency
Vce Saturation (Max) @ Ib, Ic
Voltage

2SC3857 Description

Short technical summary and product information.

The 2SC3857 is a silicon NPN triple diffused planar transistor from Sanken Electric, designed primarily for audio amplifier output stages. It offers a collector-emitter breakdown voltage of 200V (minimum) and a continuous collector current rating of 15A, making it suitable for high-power linear applications. The device features a DC current gain (hFE) ranging from 50 to 180 at VCE=4V and IC=5A, with a typical transition frequency of 20MHz. Collector output capacitance is typically 250pF at VCB=10V.

 

Power dissipation is rated at 150W at a case temperature of 25°C, and the junction temperature can reach up to 150°C. The transistor is housed in a 3-ESIP through-hole package with the MT-200 supplier device package, providing efficient thermal management. Storage temperature range is -55 to +150°C. A complementary PNP type, 2SA1493, is available for push-pull configurations.

 

The 2SC3857 is RoHS3 compliant (unverified) and is intended for audio amplifier output stages and general-purpose high-power switching applications. Its wide safe operating area (ASO) ensures reliable operation under demanding conditions.

2SC3857 Quick Information

Product Type: NPN Bipolar Transistor
Canonical Name: 2SC3857 NPN Bipolar Transistor
Subcategory: Single NPN

2SC3857 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

2SC3857 Estimated Pricing

Qty Low High
500+ $1.56 $1.56

Estimated market price range - modelled values for guidance only, not live distributor offers.

2SC3857 Features

  • NPN triple diffused planar transistor.
  • 200V collector-emitter breakdown voltage.
  • 15A continuous collector current.
  • 150W power dissipation at 25°C case.
  • MT-200 through-hole package.

2SC3857 Applications

  • Suited for audio amplifier output stage.
  • Wide ASO for reliable operation.
  • Complementary PNP pair available.
  • General purpose high-power switching.

2SC3857 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the 2SC3857?

Junction temperature up to 150°C, storage temperature -55 to +150°C.

What package does the 2SC3857 come in?

3-ESIP package with MT-200 supplier device package, through-hole mounting.

Is the 2SC3857 RoHS compliant?

Yes, RoHS3 compliant (unverified).

What is the collector-emitter breakdown voltage of the 2SC3857?

Minimum 200V at IC=50mA.

What is the maximum collector current?

15A.

What is the DC current gain (hFE) range?

50 to 180 at VCE=4V, IC=5A.

Is there a complementary PNP transistor?

Yes, the 2SA1493.

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