Manufacturer Part Number

MJH11021

Description

High-power PNP Darlington transistor by onsemi. Handles up to 15A current and 250V voltage, suitable for demanding switching and amplification tasks. Packaged in a robust SOT-93 through-hole case for better cooling and easy mounting. Delivers high gain and is designed for fast switching (3MHz). Obsolete status may impact availability; check stock or alternatives.

Specifications

Transistor type: PNP Darlington

Maximum collector current: 15A

Maximum collector-emitter voltage: 250V

Maximum collector cutoff current: 1mA

DC current gain (min): 400 @ 10A, 5V

Power dissipation: 150W

Transition frequency: 3MHz

Collector-emitter saturation voltage: 4V @ 150mA, 15A

Operating temperature range: -65°C to +150°C (TJ)

Mounting: Through-hole

Package: TO-218-3/SOT-93

Moisture sensitivity: MSL 1 (Unlimited)

RoHS status: Non-compliant

REACH status: Unaffected

ECCN: EAR99

HTSUS: 8541.29.0095

Device Structure

Composed of a PNP Darlington configuration for high current gain. The device integrates two transistors for amplifying strength. Encapsulated in TO-218-3 (SOT-93) for secure mounting and efficient heat dissipation. Features three leads: base, collector, and emitter.

Performance Characteristics

High current handling up to 15A, useful for switching and power amplification. High voltage endurance (250V) suits demanding applications. High collector gain (hFE minimum value 400) for strong amplification. Operates reliably across a wide temperature range and offers a relatively fast switching speed (3MHz).

Application Environments

Power amplifiers

High-current switching circuits

Motor drives

Industrial control systems

Audio and RF power stages

General-purpose power switching

Other environments needing robust, high power transistors

Selection Guidelines

Choose if your application needs more than 10A current and up to 250V voltage. Best for through-hole circuit board designs requiring strong mechanical support and cooling. Ideal for designs demanding high gain and fast transitions. Check for RoHS requirements if environmental compliance is mandatory, because this part is non-compliant. Since it is obsolete, consider stock availability and possible alternatives.

Usage Considerations

Ensure proper heat sinking because of high power dissipation. Double check Vce saturation in your circuit—ensure voltage drop is acceptable. Verify that the transistor's fast switching meets your speed demands but is not too sensitive for your application. Confirm that the package size and through-hole format fits your assembly process. Consider moisture sensitivity (MSL 1—unlimited) for storage and handling. Obsolete status means long-term availability may be limited.

Potential Equivalent/Replacement Models

Equivalent models include MJH11021G.

For other alternatives, compare devices in the MJH11 series or other high-power PNP Darlington transistors with similar voltage and current ratings.

If further equivalents aren’t found or if your requirements are specialized, please contact Ariat-Tech sales team for updated inventory and support on suitable replacement options.

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