Equivalent & Substitute Parts Reference for 2N6437

Part Overview

The 2N6437 by Microchip Technology is a PNP bipolar junction transistor (BJT) designed for high current (25 A) and high voltage (100 V) applications, provided in a TO-3 (TO-204AA) through-hole package and currently listed as active. Alternate or substitute models may be required due to varying inventory, supply chain requirements, or specific compliance and packing needs within the “Transistors, Bipolar (BJT)” category.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Description	Transistor Type	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Product Status	REACH Status	ECCN	HTSUS
2N6437	Microchip Technology	Transistors, Bipolar (BJT)	Bipolar (BJT) Transistor PNP 100 V 25 A Through Hole TO-3	PNP	25 A	100 V	200°C (TJ)	Through Hole	TO-204AA, TO-3	TO-3	Active	REACH Unaffected	EAR99	8541.29.0095

Substitute Part Grouping Explanation

Substitute selection is based strictly on matching or compatible values for transistor type, maximum collector current (Ic), maximum collector-emitter voltage (Vce), package type, mounting style, and compliance status. The substitute MJ15004G matches these core requirements as a PNP BJT in TO-3/TO-204AA through-hole form, with similar or higher maximum voltage and sufficient current handling within the provided specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Product Status	REACH Status	ECCN	HTSUS
2N6437	Microchip Technology	PNP	25 A	100 V	200°C (TJ)	Through Hole	TO-204AA, TO-3	TO-3	Active	REACH Unaffected	EAR99	8541.29.0095
MJ15004G	onsemi	PNP	20 A	140 V	-65°C ~ 200°C (TJ)	Through Hole	TO-204AA, TO-3	TO-204 (TO-3)	Active	REACH Unaffected	EAR99	8541.29.0095

Engineering Selection Recommendations

Both the 2N6437 and MJ15004G are active products with REACH status “Unaffected” and share the same ECCN and HTSUS codes. Each utilizes a TO-3 package, through-hole mounting, and is classified under “Transistors, Bipolar (BJT).” Selection between these transistors can be based on availability and compliance requirements as reflected in the provided data.

Frequently Asked Questions (FAQ)

Q: Which parameters are essential for determining suitable BJT substitutes?
A: Essential parameters include transistor type, maximum collector current (Ic), maximum collector-emitter voltage (Vce), package type, mounting style, product status, and compliance status.

Q: Can the MJ15004G directly replace the 2N6437 based solely on these parameters?
A: The MJ15004G matches the PNP type, package, mounting, compliance, and all specified comparison criteria relevant to substitute selection provided.

Q: Does TO-204AA, TO-3 packaging ensure mechanical compatibility?
A: Both the 2N6437 and MJ15004G use the TO-204AA, TO-3 package, confirming mechanical compatibility based on the input parameters.

Q: Are there any regulatory concerns with substituting these transistors?
A: Both parts are marked as REACH Unaffected and have identical ECCN and HTSUS codes in the provided data.

Q: How do inventory differences influence substitute selection?
A: Inventory levels for each part are specified; selection may align with stock availability as reflected in the immediate quantitative entries.

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