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

onsemi MJH6287

Name: MJH6287
Brand: onsemi
SKU: MJH6287
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MJH6287

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-218-3

Datasheet:: MJH6287.pdf

Description:: TRANS PNP DARL 100V 20A SOT-93

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MJH6287 from onsemi is a PNP Darlington silicon power transistor designed for low-speed switching and general-purpose amplifier applications in motor control systems. It delivers 20 A continuous collector current, supports 100 V collector-emitter sustaining voltage (V_CEO(sus)), and dissipates up to 160 W at T_C = 25°C with rugged reverse-bias safe operating area (RBSOA) characteristics.

For engineers reviewing the MJH6287 datasheet, pinout, applications, or equivalent options, this device is evaluated for high-current linear amplification, DC motor H-bridge driver stages, and industrial relay/contactor interface circuits where high DC current gain and thermal robustness are required.

Technical Context

The MJH6287 is a monolithic complementary Darlington pair with built-in collector-emitter diode, optimized for operation in the forward-active and saturation regions. Its h_FE ranges from 100 to 18,000 (IC = 10–20 A, V_CE = 3.0 V), and it exhibits RBSOA-limited pulse handling up to 100 V / 20 A at 10% duty cycle with T_J(pk) ≤ 150°C.

Thermal performance is defined by R_JC = 0.78°C/W max, enabling stable operation under forced-air or heatsink-cooled conditions. Switching behavior includes t_s = 1.0 µs and t_f = 2.0 µs (resistive load, I_C = 10 A), confirming suitability for non-high-frequency power control.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO(sus)	100 Vdc - Sustains 100 V across C–E at I_C = 0.1 A with zero base drive, defining maximum off-state blocking capability.
I_C Continuous	20 Adc - Supports sustained 20 A collector current at T_C = 25°C, requiring ≥0.78°C/W heatsinking for full-power operation.
P_D @ T_C = 25°C	160 W - Maximum junction-to-case power dissipation before derating begins; usable only with adequate thermal management.
h_FE (I_C = 10 A)	750–18,000 - High DC current gain enables low-base-drive control of high-load currents, reducing driver-stage complexity.
V_CE(sat) (I_C = 20 A)	≤3.0 Vdc - Saturation voltage limits conduction loss to ≤60 W at full current, critical for thermal design in linear or quasi-saturated operation.
C_ob	600 pF - Output capacitance impacts switching speed and gate/base drive requirements in high-dV/dt environments.

Pinout & Package

Available in TO-247 (Case 340L, Style 3) and legacy TO-218 (SOT-93, Case 340D) packages - both feature 4-terminal construction with dual collector leads for enhanced current handling and thermal path redundancy.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input node; requires current-limited drive (I_B ≤ 0.5 A) to achieve specified h_FE and V_CE(sat).
2	Collector	Main high-current output terminal; electrically tied to Pin 4; used for primary heat transfer and high-side connection in PNP configurations.
3	Emiter	Power return path; connects to system ground or positive rail depending on circuit topology (e.g., high-side switch emitter to V_CC).
4	Collector	Second collector terminal - paralleled internally or externally to reduce current density and improve thermal distribution across package leads.

Key Features

Feature	Design Value
Rugged RBSOA	Validated reverse-bias safe operating area up to 100 V / 20 A at 10% duty cycle, enabling reliable operation during inductive turn-off transients.
Monolithic Darlington + Built-in Diode	Integrated collector-emitter diode eliminates need for external flyback protection in DC motor drive applications.
Pb-Free Construction	RoHS-compliant packaging (G suffix) with documented soldering profiles per onsemi Soldering and Mounting Techniques Reference Manual.
High h_FE at Full Current	Minimum h_FE = 100 at I_C = 20 A ensures predictable base drive sizing without overdesigning driver stages.

Applications

DC Motor H-Bridge Driver	Industrial Relay Interface
Use Scenario: Used as high-side PNP switch in one leg of an H-bridge driving 24–48 V DC brushed motors up to 15 A continuous. IC Role / Device Role / Timing Role: PNP Darlington power switch providing current amplification and voltage inversion for bidirectional motor control. Use Value: Enables direct microcontroller-level base drive while delivering 20 A load current with ≤3.0 V saturation drop, minimizing heat generation in compact enclosures.	Use Scenario: Drives 12–24 VDC industrial relays and contactors with coil currents up to 18 A in PLC output modules. IC Role / Device Role / Timing Role: High-gain PNP switching transistor replacing discrete BJT+driver combinations in solid-state output cards. Use Value: Reduces component count and PCB footprint versus single-transistor solutions, while maintaining >100 h_FE even at full-rated coil current.
Linear Power Amplifier Stage	High-Current Voltage Regulator Pass Element
Use Scenario: Serves as output stage in wideband audio or precision DC amplifiers requiring >10 A peak current delivery into low-impedance loads. IC Role / Device Role / Timing Role: Complementary Darlington output device operating in Class AB or linear mode with controlled thermal response. Use Value: Delivers stable gain (h_FE ≥ 750 at 10 A) and low distortion due to monolithic construction and matched internal transistor pairs.	Use Scenario: Functions as series pass element in high-current linear regulators supplying 5–12 V at up to 15 A for test equipment and lab power supplies. IC Role / Device Role / Timing Role: High-power PNP pass transistor regulating output voltage via feedback-controlled base current. Use Value: Maintains <1% regulation error under full load due to high h_FE and low V_CE(sat), with R_JC = 0.78°C/W supporting heatsink-based thermal management.

DC Motor H-Bridge Driver

Industrial Relay Interface

Use Scenario: Used as high-side PNP switch in one leg of an H-bridge driving 24–48 V DC brushed motors up to 15 A continuous.

IC Role / Device Role / Timing Role: PNP Darlington power switch providing current amplification and voltage inversion for bidirectional motor control.

Use Value: Enables direct microcontroller-level base drive while delivering 20 A load current with ≤3.0 V saturation drop, minimizing heat generation in compact enclosures.

Use Scenario: Drives 12–24 VDC industrial relays and contactors with coil currents up to 18 A in PLC output modules.

IC Role / Device Role / Timing Role: High-gain PNP switching transistor replacing discrete BJT+driver combinations in solid-state output cards.

Use Value: Reduces component count and PCB footprint versus single-transistor solutions, while maintaining >100 h_FE even at full-rated coil current.

Linear Power Amplifier Stage

High-Current Voltage Regulator Pass Element

Use Scenario: Serves as output stage in wideband audio or precision DC amplifiers requiring >10 A peak current delivery into low-impedance loads.

IC Role / Device Role / Timing Role: Complementary Darlington output device operating in Class AB or linear mode with controlled thermal response.

Use Value: Delivers stable gain (h_FE ≥ 750 at 10 A) and low distortion due to monolithic construction and matched internal transistor pairs.

Use Scenario: Functions as series pass element in high-current linear regulators supplying 5–12 V at up to 15 A for test equipment and lab power supplies.

IC Role / Device Role / Timing Role: High-power PNP pass transistor regulating output voltage via feedback-controlled base current.

Use Value: Maintains <1% regulation error under full load due to high h_FE and low V_CE(sat), with R_JC = 0.78°C/W supporting heatsink-based thermal management.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP Darlington power transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2N6287	Legacy through-hole PNP Darlington with identical electrical specs but obsolete TO-3 packaging and no Pb-free option.	Limited to legacy repair or non-RoHS designs; lacks TO-247 mechanical compatibility and modern thermal performance.	Select MJH6287 for new designs requiring RoHS compliance, TO-247 mountability, and documented RBSOA curves.
MJH6284	NPN complement with identical V_CEO, I_C, P_D, and package options - not electrically interchangeable but designed for matched pair use.	Used only in complementary topologies (e.g., push-pull amplifiers); cannot replace MJH6287 in PNP-only circuits.	Choose MJH6284 only when building symmetrical NPN/PNP stages; not a functional substitute for MJH6287.

Compared with 2N6287, the MJH6287 offers Pb-free packaging and TO-247/TO-218 compatibility for modern assembly, while matching all key electrical ratings; compared with MJH6284, it provides complementary polarity but no direct substitution capability due to fundamental NPN/PNP asymmetry.

Availability

MJH6287 is available at Aetrix Electronics and suitable for DC motor control, industrial relay interfacing, and high-current linear amplifier applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant power transistors.

Supply support for MJH6287 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The MJH6287 belongs to onsemi's high-reliability discrete power transistor family, engineered specifically for ruggedized industrial motor control and linear power applications demanding high current gain, thermal stability, and proven RBSOA performance.

FAQ

What is the maximum continuous collector current rating for the MJH6287?

The MJH6287 is rated for 20 A continuous collector current at case temperature T_C = 25°C. Operation above this temperature requires linear derating at 1.28 W/°C, and actual usable current depends on heatsink performance and ambient conditions. The device must remain within its RBSOA envelope during transient overload events.

Does the MJH6287 have a built-in flyback diode?

Yes, the MJH6287 features a monolithically integrated collector-emitter diode, explicitly noted in the datasheet as part of its construction. This internal diode provides inherent protection against inductive kickback in motor and relay drive applications, eliminating the need for an external freewheeling diode in many configurations.

Which package types are available for the MJH6287?

The MJH6287 is offered in two industry-standard packages: TO-247 (Case 340L, Style 3) and TO-218 (SOT-93, Case 340D). Both are 4-pin variants with dual collector terminals. As of June 2012, new production is exclusively in TO-247, though TO-218 remains available in legacy stock.

What is the typical DC current gain (h_FE) of the MJH6287 at full load?

At I_C = 20 A and V_CE = 3.0 V, the MJH6287 guarantees a minimum h_FE of 100, with typical values reaching up to 18,000 at lower currents (I_C = 10 A). This wide h_FE range allows flexible base drive design - from simple resistor-limited inputs to active current sources - while maintaining saturation under full-rated load.

Can the MJH6287 be used as a direct replacement for the 2N6287?

The MJH6287 is functionally equivalent to the 2N6287 in electrical specifications and circuit role, but it is not a direct mechanical replacement due to differences in package (TO-247/TO-218 vs. TO-3). While electrical behavior matches, PCB layout and thermal mounting must be redesigned to accommodate the newer package dimensions and dual-collector lead configuration of the MJH6287.

MJH6287 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-218-3

Packaging:: Tube

Product Status:: Obsolete

Transistor Type:: PNP - Darlington

Current - Collector (Ic) (Max):: 20 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 3V @ 200mA, 20A

Current - Collector Cutoff (Max):: 1mA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 750 @ 10A, 3V

Power - Max:: 160 W

Frequency - Transition:: 4MHz

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: SOT-93

MJH6287 FAQ

1.How can I place an order for MJH6287 through Aetrix?

Please submit a Request for Quotation (RFQ) for MJH6287 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 MJH6287 reliable?

The price and inventory of MJH6287 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJH6287 is usually 5 days.

3.What payment methods are accepted for MJH6287?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJH6287 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MJH6287?

MJH6287 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MJH6287 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 MJH6287?

For technical support, including MJH6287 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJH6287 requirements.

6.How does Aetrix verify that MJH6287 is sourced from the original manufacturer or authorized distributors?

All MJH6287 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 MJH6287 meets industry standards.

7.What is the process for return or replacement of MJH6287?

All MJH6287 units undergo pre-shipment inspection (PSI). If there is an issue with MJH6287, 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 MJH6287 part is unused and in its original packaging.

Return procedure for MJH6287:

1.Submit a request within 90 days.

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

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