MJH6287 Equivalent & Substitute Parts

Part Overview

The MJH6287 is a PNP Darlington bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 20 A maximum collector current. This component is packaged in SOT-93 (TO-218-3) through-hole configuration and is designed for high-current switching and amplification applications requiring 160 W power dissipation capability.

The MJH6287 carries an obsolete product status. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and redesign activities where this component is specified in existing designs or where inventory depletion requires alternative sourcing.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP - Darlington	—
Current - Collector (Ic) (Max)	20	A
Voltage - Collector Emitter Breakdown (Max)	100	V
Vce Saturation (Max) @ Ib, Ic	3 V @ 200 mA, 20 A	—
Current - Collector Cutoff (Max)	1	mA
DC Current Gain (hFE) (Min) @ Ic, Vce	750 @ 10 A, 3 V	—
Power - Max	160	W
Frequency - Transition	4	MHz
Operating Temperature Range	-65 to 150	°C (TJ)
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the MJH6287 is determined by electrical and mechanical parameter equivalence. The critical parameters governing substitution are:

Transistor Type: PNP Darlington configuration
Current Rating: 20 A maximum collector current
Voltage Rating: 100 V collector-emitter breakdown voltage
Power Dissipation: 160 W maximum
DC Current Gain: 750 minimum at specified conditions
Saturation Voltage: 3 V maximum at rated conditions
Frequency Response: 4 MHz transition frequency
Temperature Range: -65°C to 150°C junction temperature
Mounting: Through-hole configuration

The MJH6287G qualifies as a direct electrical equivalent, maintaining all specified electrical parameters while differing only in package form factor (TO-247-3 versus SOT-93) and product status (active versus obsolete).

Parameter Comparison

Parameter	MJH6287	MJH6287G	Unit
Manufacturer	onsemi	onsemi	—
Transistor Type	PNP - Darlington	PNP - Darlington	—
Current - Collector (Ic) (Max)	20	20	A
Voltage - Collector Emitter Breakdown (Max)	100	100	V
Vce Saturation (Max) @ Ib, Ic	3 V @ 200 mA, 20 A	3 V @ 200 mA, 20 A	—
Current - Collector Cutoff (Max)	1	1	mA
DC Current Gain (hFE) (Min) @ Ic, Vce	750 @ 10 A, 3 V	750 @ 10 A, 3 V	—
Power - Max	160	160	W
Frequency - Transition	4	4	MHz
Operating Temperature Range	-65 to 150	-65 to 150	°C (TJ)
Mounting Type	Through Hole	Through Hole	—
Package / Case	TO-218-3 (SOT-93)	TO-247-3	—
Product Status	Obsolete	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

The MJH6287G is the direct electrical equivalent for the obsolete MJH6287. All electrical parameters, including current rating, voltage rating, power dissipation, gain, and frequency response, are identical between the two parts.

Product Status Consideration: The MJH6287 is obsolete, while the MJH6287G maintains active product status with onsemi. Selection of the MJH6287G ensures access to current manufacturing, ongoing technical support, and continued availability.

Compliance Consideration: The MJH6287G is ROHS3 compliant, whereas the MJH6287 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the MJH6287G is the appropriate selection.

Package Consideration: The primary difference between these parts is the package form factor. The MJH6287 uses SOT-93 (TO-218-3) packaging, while the MJH6287G uses TO-247-3 packaging. Both are through-hole configurations with identical electrical performance. PCB layout and thermal management design must accommodate the different package dimensions.

Frequently Asked Questions (FAQ)

Q: Are the MJH6287 and MJH6287G electrically interchangeable?

A: Yes. Both parts are PNP Darlington transistors with identical electrical specifications: 20 A collector current, 100 V breakdown voltage, 160 W power rating, 750 minimum DC current gain, and 4 MHz transition frequency. All saturation voltage, cutoff current, and temperature range specifications are identical.

Q: What is the primary difference between MJH6287 and MJH6287G?

A: The primary difference is the package form factor. The MJH6287 is packaged in SOT-93 (TO-218-3), while the MJH6287G is packaged in TO-247-3. Both are through-hole packages. Additionally, the MJH6287G is an active product with ROHS3 compliance, whereas the MJH6287 is obsolete and RoHS non-compliant.

Q: Can I use MJH6287G as a direct replacement in existing designs?

A: Electrical substitution is direct. However, the different package dimensions require PCB layout verification. The TO-247-3 package has different pin spacing and mounting hole locations compared to SOT-93. Thermal management characteristics may also differ due to package geometry variations. Physical fit and thermal performance must be confirmed for the specific application.

Q: Why is the MJH6287 listed as obsolete?

A: The MJH6287 is an obsolete product per onsemi's product status classification. The MJH6287G represents the current active equivalent, ensuring ongoing manufacturing and supply chain availability.

Q: Does the MJH6287G meet RoHS requirements?

A: Yes. The MJH6287G is ROHS3 compliant. The original MJH6287 is RoHS non-compliant. For applications requiring RoHS compliance, the MJH6287G is the appropriate selection.

Q: Are there any thermal management differences between the two packages?

A: Package geometry differences between SOT-93 and TO-247-3 may result in different thermal characteristics. The TO-247-3 package typically provides different thermal resistance values. Thermal design calculations specific to the application and PCB layout should be performed to ensure adequate heat dissipation for both packages.

Q: What is the base product number for these parts?

A: The base product number is MJH62. Both MJH6287 and MJH6287G are variants within this product family.

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