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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi 2SC3150M

Name: 2SC3150M
Brand: onsemi
SKU: 2SC3150M
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SC3150M

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: 2SC3150M.pdf

Description:: TRANS NPN 800V 3A TO-220AB

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Product details

Overview

2SC3150M from SANYO is an NPN triple diffused planar silicon transistor designed for high-voltage switching regulator applications, featuring V_CBO ≥ 900 V, I_C = 3 A, and P_C = 50 W at T_C = 25°C, commonly used in offline SMPS primary-side switch circuits.

For engineers reviewing the 2SC3150M datasheet, pinout, applications, or equivalent options, key selection criteria include breakdown voltage margin, safe operating area (ASO) under pulse conditions, thermal resistance in TO-220AB mounting, and h_FE classification bands for consistent gain matching in production designs.

Technical Context

This device employs a triple-diffused planar structure to achieve high collector-base breakdown while maintaining fast switching (t_on = 0.1 µs, t_off = 0.3 µs, t_f = 0.7 µs) and wide SOA up to 10 A peak collector current at V_CE = 400 V with R_B = 200 Ω.

It operates with specified DC current gain h_FE1 = 10–40 at I_C = 0.2 A, V_CE = 5 V and h_FE2 = 8 at I_C = 1 A, V_CE = 5 V, supporting stable biasing across load ranges in flyback and forward converter topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CBO	≥900 V - Enables use in 400 V AC-input SMPS without derating for line surges.
I_C	3 A continuous - Supports output power up to ~150 W in single-switch forward converters.
P_C	50 W at T_C = 25°C - Requires heatsink with θ_JC ≤ 2.5°C/W for full-load operation.
f_T	15 MHz at V_CE = 10 V, I_C = 0.2 A - Sufficient for PWM frequencies up to 500 kHz with margin.
t_on/t_off/t_f	0.1/0.3/0.7 µs - Minimizes switching losses in hard-switched topologies at 100–200 kHz.
SOA (DC)	Rated to 800 V × 3 A boundary - Confirmed by wide ASO curve covering linear region up to 10 A pulse.

Pinout & Package

Package: TO-220AB (JEDEC), SC-46 (EIAJ), with isolated tab (collector-connected). Mounting requires insulating washer and torque-controlled screw for thermal reliability.

Pin/Terminal	Circuit Role	Design Meaning
1 (Base)	Control input terminal	Low-impedance drive required; typical R_B = 200 Ω for specified switching times.
2 (Collector)	Main current path output	Internally connected to metal tab; must be electrically isolated from heatsink unless system ground referenced.
3 (Emitter)	Current return path	Common reference for base drive; layout must minimize L_EMITTER to avoid oscillation during turn-off.

Key Features

Feature	Design Value
High V_CBO	Guaranteed ≥900 V enables 230 VAC universal input designs with >100% surge margin.
Fast switching	Sub-microsecond t_on/t_off reduces conduction + switching loss trade-off in 100–500 kHz SMPS.
Wide ASO	Validated linear SOA up to 10 A/400 V supports robust short-circuit protection without snubbers.
Triple diffused planar process	Provides stable h_FE across temperature and lifetime, critical for unregulated auxiliary supplies.

Applications

Offline Flyback Converter	Forward Converter Primary Switch
Use Scenario: 24 V/3 A isolated output from 85–265 VAC input in industrial control power supply. IC Role / Device Role / Timing Role: Main high-voltage switching transistor driven by UC3842-based PWM controller. Use Value: 900 V V_CBO accommodates 400 V reflected clamp voltage plus 100 V ringing margin.	Use Scenario: 48 V/5 A telecom power module with active reset winding. IC Role / Device Role / Timing Role: Primary-side power switch synchronized to transformer reset timing. Use Value: Wide SOA supports 10 A peak current during reset phase without secondary snubber.
AC-DC Adapter Primary Side	LED Driver High-Voltage Buck
Use Scenario: Compact 12 V/2 A wall adapter with integrated EMI filter and bridge rectifier. IC Role / Device Role / Timing Role: Single-ended switch in discontinuous conduction mode (DCM) flyback. Use Value: Fast t_f = 0.7 µs limits voltage overshoot during DCM valley switching.	Use Scenario: 36 V string LED driver powered directly from rectified 230 VAC. IC Role / Device Role / Timing Role: High-side buck switch operating in quasi-resonant mode. Use Value: 800 V V_CEO rating ensures reliable operation across full AC cycle including zero-crossing transients.

Offline Flyback Converter

Forward Converter Primary Switch

Use Scenario: 24 V/3 A isolated output from 85–265 VAC input in industrial control power supply.

IC Role / Device Role / Timing Role: Main high-voltage switching transistor driven by UC3842-based PWM controller.

Use Value: 900 V V_CBO accommodates 400 V reflected clamp voltage plus 100 V ringing margin.

Use Scenario: 48 V/5 A telecom power module with active reset winding.

IC Role / Device Role / Timing Role: Primary-side power switch synchronized to transformer reset timing.

Use Value: Wide SOA supports 10 A peak current during reset phase without secondary snubber.

AC-DC Adapter Primary Side

LED Driver High-Voltage Buck

Use Scenario: Compact 12 V/2 A wall adapter with integrated EMI filter and bridge rectifier.

IC Role / Device Role / Timing Role: Single-ended switch in discontinuous conduction mode (DCM) flyback.

Use Value: Fast t_f = 0.7 µs limits voltage overshoot during DCM valley switching.

Use Scenario: 36 V string LED driver powered directly from rectified 230 VAC.

IC Role / Device Role / Timing Role: High-side buck switch operating in quasi-resonant mode.

Use Value: 800 V V_CEO rating ensures reliable operation across full AC cycle including zero-crossing transients.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage switching transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SC3150 (standard suffix)	Same die, no 'M' suffix; h_FE rank not explicitly marked on package.	Identical electrical specs; 'M' denotes factory-sorted h_FE band per EN1069C spec sheet.	Select 2SC3150M when consistent gain matching is required across parallel devices or for automated test calibration.
FJP13009	V_CBO = 700 V (lower), I_C = 12 A, f_T = 4 MHz - higher current but reduced voltage margin.	Suitable only for 115 VAC-only designs or with external clamping; not drop-in for universal input.	Choose FJP13009 only if peak V_CE stays below 550 V and higher I_C justifies lower breakdown safety factor.

Compared with 2SC3150M, the standard 2SC3150 offers identical performance but lacks factory h_FE binning traceability, while FJP13009 trades 200 V of breakdown headroom for higher current capability-making 2SC3150M optimal for universal-input SMPS where voltage stress dominates design constraints.

Availability

2SC3150M is available at Aetrix Electronics and suitable for offline switching regulators, AC-DC adapters, and industrial LED drivers requiring stable component supply with long-lifecycle support.

Supply support for 2SC3150M includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

SANYO Semiconductor was a Japanese semiconductor manufacturer specializing in power discrete devices, analog ICs, and optoelectronics before its acquisition by ON Semiconductor in 2013.

The 2SC3150M belongs to SANYO's high-voltage bipolar transistor product line, engineered specifically for ruggedized switching regulator primary-side operation in industrial and consumer power supplies.

FAQ

What is the maximum junction temperature rating for the 2SC3150M?

The 2SC3150M has a maximum junction temperature (T_j) of 150°C, as specified in its Absolute Maximum Ratings table. This rating assumes proper heatsinking and thermal interface material to maintain case temperature (T_C) at or below 25°C for full-rated power dissipation. Exceeding 150°C risks permanent degradation of the triple-diffused junction structure.

Does the 'M' suffix in 2SC3150M indicate a different package or pinout compared to 2SC3150?

No-the 'M' suffix on 2SC3150M denotes factory-sorted h_FE classification per EN1069C specification, not a mechanical change. Both 2SC3150 and 2SC3150M use identical TO-220AB packaging, pinout (Base–Collector–Emitter), and all electrical ratings. The 'M' version guarantees documented h_FE banding for production consistency.

Can the 2SC3150M replace the 2SC2625 in an existing flyback design?

The 2SC3150M is not a direct replacement for the 2SC2625 due to significant parameter differences: 2SC3150M has V_CBO ≥ 900 V vs. 2SC2625's 700 V, and higher P_C (50 W vs. 30 W), but slower f_T (15 MHz vs. 30 MHz). Layout changes may be needed to accommodate thermal mass, and gate drive must be re-verified for the higher C_ob (60 pF).

What is the safe operating area (SOA) limit for pulsed operation of the 2SC3150M?

The 2SC3150M SOA is validated up to I_C = 10 A at V_CE = 400 V for PW ≤ 300 µs and duty cycle ≤ 10%, per the datasheet's SOA graph. At 100 µs pulse width, it supports up to 12 A with V_CE ≤ 300 V. Operation beyond these boundaries risks second breakdown even with heatsinking.

Is the collector terminal of the 2SC3150M internally connected to the metal tab?

Yes-the collector of the 2SC3150M is internally bonded to the metal tab in its TO-220AB package. This requires electrical isolation (e.g., mica washer + thermal paste) when mounted to a grounded heatsink. Failure to isolate will short the collector to system ground, causing immediate device failure and potential controller damage.

2SC3150M Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-220-3

Packaging:: Bulk

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 3 A

Voltage - Collector Emitter Breakdown (Max):: 800 V

Vce Saturation (Max) @ Ib, Ic:: 2V @ 300mA, 1.5A

Current - Collector Cutoff (Max):: 10µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 20 @ 200mA, 5V

Power - Max:: 50 W

Frequency - Transition:: 15MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

2SC3150M FAQ

1.How can I place an order for 2SC3150M through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SC3150M on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2SC3150M reliable?

The price and inventory of 2SC3150M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC3150M is usually 5 days.

3.What payment methods are accepted for 2SC3150M?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC3150M transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SC3150M?

2SC3150M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SC3150M order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2SC3150M?

For technical support, including 2SC3150M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC3150M requirements.

6.How does Aetrix verify that 2SC3150M is sourced from the original manufacturer or authorized distributors?

All 2SC3150M products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2SC3150M meets industry standards.

7.What is the process for return or replacement of 2SC3150M?

All 2SC3150M units undergo pre-shipment inspection (PSI). If there is an issue with 2SC3150M, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2SC3150M part is unused and in its original packaging.

Return procedure for 2SC3150M:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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