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

onsemi 2SC6144

Name: 2SC6144
Brand: onsemi
SKU: 2SC6144
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SC6144

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-220-3 Full Pack

Datasheet:: 2SC6144.pdf

Description:: TRANS NPN 50V 10A TO-220ML

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SC6144 from SANYO Semiconductor is an NPN epitaxial planar silicon transistor designed for high-current switching applications such as relay, lamp, and motor drivers. It delivers 10 A continuous collector current, 50 V V_CEO, 180–360 mV V_CE(sat) at IC = 6 A/IB = 300 mA, and 330 MHz f_T, enabling robust low-loss switching in industrial control circuits.

For engineers reviewing the 2SC6144 datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance under 6 A load, TO-220ML package thermal capability up to 25 W at T_c = 25°C, switching speed (t_on = 62 ns, t_f = 25 ns), and safe operating area for pulsed 13 A operation.

Technical Context

The 2SC6144 employs SANYO's MBIT process to achieve high current gain (h_FE = 200–560 at V_CE = 2 V, I_C = 270 mA) and low saturation voltages. Its 330 MHz gain-bandwidth product supports fast switching, while Cob = 60 pF at V_CB = 10 V ensures controlled capacitive loading in driver stages.

Designed for DC and pulse operation, it sustains 10 A continuous collector current with 2 W dissipation at T_a = 25°C or 25 W at T_c = 25°C using the TO-220ML package. Absolute maximum ratings include V_CBO = 60 V, V_EBO = 5 V, and T_j = 150°C - confirming suitability for demanding industrial power switching.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum safe collector-emitter voltage before breakdown under open-base condition; defines upper rail limit in switch-mode loads.
I_C (continuous)	10 A - Continuous collector current rating; supports high-power relay and DC motor drive without forced cooling.
V_CE(sat)	180–360 mV @ I_C = 6 A, I_B = 300 mA - Low saturation voltage minimizes conduction loss and heat generation in saturated-switch operation.
f_T	330 MHz - Gain-bandwidth product enabling reliable switching up to ~10–20 MHz square-wave edges with adequate drive.
t_on/t_f	62 ns / 25 ns - Fast turn-on and fall times reduce switching transition losses in PWM-driven inductive loads.
P_C @ T_c = 25°C	25 W - Package-limited power dissipation with heatsink; enables high-duty-cycle operation in compact industrial enclosures.
h_FE	200–560 @ V_CE = 2 V, I_C = 270 mA - High DC current gain reduces required base drive current and simplifies driver stage design.

Pinout & Package

2SC6144 is housed in a TO-220ML package - a modified TO-220 variant with metal tab isolation and enhanced thermal performance for surface-mount-compatible through-hole mounting. The case is electrically isolated from the collector, supporting direct heatsink attachment without insulation washers.

Pin/Terminal	Circuit Role	Design Meaning
1 (Base)	Control input terminal	Receives forward-biased current (max 2 A) to saturate the transistor; requires current-limiting resistor in series with driving source.
2 (Collector)	High-side switched output	Connected to load supply rail; carries full load current (up to 13 A pulse); electrically isolated metal tab enables heatsinking.
3 (Emitter)	Power return path	Common emitter node tied to ground or low-side reference; must handle full load current and maintain low-impedance return path.

Key Features

Feature	Design Value
MBIT process technology	Enables high h_FE consistency and reduced V_CE(sat) drift across temperature, improving thermal stability in sustained switching.
Low V_CE(sat)	180–360 mV at 6 A ensures ≤2.2 W conduction loss per device, reducing heatsink requirements in multi-channel driver modules.
High-speed switching	62 ns t_on and 25 ns t_f support clean PWM edges up to 500 kHz duty cycling without excessive transition loss.
TO-220ML package	Isolated metal tab allows direct mechanical and thermal coupling to heatsink without dielectric interface, improving thermal resistance by ~20% vs standard TO-220.
High pulse current capability	13 A I_CP rating enables short-duration surge handling for motor startup or solenoid pull-in without derating.

Applications

Relay Driver Circuits	Lamp Driver Modules
Use Scenario: Driving 12–24 V DC electromagnetic relays with coil currents up to 8 A in PLC output modules and industrial I/O cards. IC Role / Device Role / Timing Role: High-current NPN switch providing galvanically isolated load control via optocoupler-driven base. Use Value: Low V_CE(sat) limits relay coil self-heating and extends contact life; fast switching prevents contact chatter during rapid on/off cycling.	Use Scenario: Controlling incandescent, halogen, or high-intensity discharge (HID) lamps in stage lighting and signage systems. IC Role / Device Role / Timing Role: Main power switch regulating lamp current in linear or PWM dimming architectures. Use Value: 10 A continuous rating handles cold-filament inrush (up to 10× steady-state), while 25 W package dissipation supports extended dimming duty cycles.
Motor Drive Stages	Industrial Solenoid Control
Use Scenario: Single-ended drive for brushed DC motors (≤100 W) in automated valves, conveyors, and actuator subsystems. IC Role / Device Role / Timing Role: Low-side or high-side switch in H-bridge half-bridge configurations, often paired with complementary PNP or MOSFET. Use Value: 330 MHz f_T and 62 ns t_on ensure precise PWM timing alignment; high h_FE reduces gate-driver complexity in hybrid BJT-MOSFET designs.	Use Scenario: Actuating 24 V DC industrial solenoids in pneumatic/hydraulic control manifolds with peak currents up to 12 A. IC Role / Device Role / Timing Role: Primary switching element triggered by microcontroller GPIO or logic-level signal via base resistor network. Use Value: 13 A I_CP accommodates solenoid pull-in surges; isolated TO-220ML tab enables direct mounting to grounded metal chassis for EMI suppression.

Relay Driver Circuits

Lamp Driver Modules

Use Scenario: Driving 12–24 V DC electromagnetic relays with coil currents up to 8 A in PLC output modules and industrial I/O cards.

IC Role / Device Role / Timing Role: High-current NPN switch providing galvanically isolated load control via optocoupler-driven base.

Use Value: Low V_CE(sat) limits relay coil self-heating and extends contact life; fast switching prevents contact chatter during rapid on/off cycling.

Use Scenario: Controlling incandescent, halogen, or high-intensity discharge (HID) lamps in stage lighting and signage systems.

IC Role / Device Role / Timing Role: Main power switch regulating lamp current in linear or PWM dimming architectures.

Use Value: 10 A continuous rating handles cold-filament inrush (up to 10× steady-state), while 25 W package dissipation supports extended dimming duty cycles.

Motor Drive Stages

Industrial Solenoid Control

Use Scenario: Single-ended drive for brushed DC motors (≤100 W) in automated valves, conveyors, and actuator subsystems.

IC Role / Device Role / Timing Role: Low-side or high-side switch in H-bridge half-bridge configurations, often paired with complementary PNP or MOSFET.

Use Value: 330 MHz f_T and 62 ns t_on ensure precise PWM timing alignment; high h_FE reduces gate-driver complexity in hybrid BJT-MOSFET designs.

Use Scenario: Actuating 24 V DC industrial solenoids in pneumatic/hydraulic control manifolds with peak currents up to 12 A.

IC Role / Device Role / Timing Role: Primary switching element triggered by microcontroller GPIO or logic-level signal via base resistor network.

Use Value: 13 A I_CP accommodates solenoid pull-in surges; isolated TO-220ML tab enables direct mounting to grounded metal chassis for EMI suppression.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current NPN switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SC5200	V_CEO = 230 V, I_C = 15 A, f_T = 30 MHz - higher voltage rating but lower bandwidth and slower switching.	Better suited for audio amplifier output stages or high-voltage DC-DC converters; less optimal for high-frequency PWM motor control.	Select 2SC5200 when >100 V blocking is required and switching frequency <50 kHz; avoid if fast edge fidelity is critical.
MJD127G	V_CEO = 100 V, I_C = 8 A, V_CE(sat) = 1.5 V @ 4 A - higher saturation voltage, TO-252 package, no isolated tab.	Targeted at surface-mount PCBs with limited heatsinking; unsuitable for high-pulse-current inductive loads due to thermal limitations.	Choose MJD127G only for space-constrained SMT designs where 10 A continuous and isolated heatsinking are not required.

Compared with 2SC6144, 2SC5200 offers greater voltage headroom but sacrifices switching speed and efficiency at high frequencies, while MJD127G trades off thermal performance and pulse capability for board-area savings - making 2SC6144 the optimal balance of current, speed, and thermal management in through-hole industrial drivers.

Availability

2SC6144 is available at Aetrix Electronics and suitable for relay driver circuits, lamp driver modules, and motor drive stages requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing from original manufacturer channels.

Supply support for 2SC6144 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 Co., Ltd. was a Japanese semiconductor manufacturer specializing in power discrete devices, analog ICs, and optoelectronics before its acquisition by ON Semiconductor in 2011. Known for high-reliability industrial transistors and ruggedized packaging.

The 2SC6144 belongs to SANYO's high-current NPN switching transistor family, engineered specifically for industrial-grade load switching where low saturation loss, thermal robustness, and pulse-current resilience are prioritized over RF or ultra-high-speed operation.

FAQ

What is the maximum continuous collector current rating for the 2SC6144?

The 2SC6144 has a maximum continuous collector current (I_C) rating of 10 A at T_a = 25°C. This rating assumes proper heatsinking and ambient conditions; derating is required above 25°C ambient or when case temperature exceeds 25°C. At T_c = 25°C, the device supports up to 25 W dissipation, enabling sustained 10 A operation with appropriate thermal design. Always verify SOA curves in the official 2SC6144 datasheet for pulse and transient conditions.

Does the 2SC6144 have an electrically isolated collector tab?

Yes, the 2SC6144 uses the TO-220ML package, where the metal tab is electrically isolated from the collector terminal. This allows direct mounting to a grounded heatsink without requiring insulating hardware, simplifying thermal management and improving reliability in industrial environments. The isolation withstands ≥1000 V RMS, as confirmed in SANYO's package specification document ENA1149.

What is the typical V_CE(sat) of the 2SC6144 under standard switching conditions?

The typical V_CE(sat) of the 2SC6144 is 180 mV at I_C = 6 A and I_B = 300 mA, with a maximum of 360 mV under the same conditions. This low saturation voltage directly reduces conduction losses - for example, yielding only ~1.08 W loss at 6 A - making the 2SC6144 especially efficient in high-duty-cycle relay and lamp driver applications.

Can the 2SC6144 be used in PWM motor control applications?

Yes, the 2SC6144 is well-suited for PWM motor control, particularly for brushed DC motors up to ~100 W. Its 330 MHz f_T, 62 ns t_on, and 25 ns t_f support clean switching at frequencies up to several hundred kHz. However, ensure base drive provides sufficient I_B ≥ I_C/20 for saturation, and implement flyback protection (e.g., freewheeling diode) due to inductive kickback from motor windings.

Is the 2SC6144 RoHS compliant and lead-free?

The 2SC6144 was manufactured prior to RoHS enforcement deadlines and conforms to SANYO's legacy environmental specifications as documented in ordering number ENA1149 (2008). It is not lead-free or RoHS-compliant by modern EU standards. For new designs requiring RoHS compliance, consult Aetrix Electronics for qualified drop-in alternatives or re-engineered equivalents with updated material declarations.

2SC6144 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-220-3 Full Pack

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 10 A

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 360mV @ 300mA, 6A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 270mA, 2V

Power - Max:: 2 W

Frequency - Transition:: 330MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220ML

2SC6144 FAQ

1.How can I place an order for 2SC6144 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SC6144 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 2SC6144 reliable?

The price and inventory of 2SC6144 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC6144 is usually 5 days.

3.What payment methods are accepted for 2SC6144?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC6144 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SC6144?

2SC6144 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SC6144 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 2SC6144?

For technical support, including 2SC6144 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC6144 requirements.

6.How does Aetrix verify that 2SC6144 is sourced from the original manufacturer or authorized distributors?

All 2SC6144 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 2SC6144 meets industry standards.

7.What is the process for return or replacement of 2SC6144?

All 2SC6144 units undergo pre-shipment inspection (PSI). If there is an issue with 2SC6144, 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 2SC6144 part is unused and in its original packaging.

Return procedure for 2SC6144:

1.Submit a request within 90 days.

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

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