STB36NF06LT4 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The STB36NF06LT4 is an N-Channel 60V 30A surface mount MOSFET manufactured by STMicroelectronics in the STripFET™ II series. This device is packaged in D2PAK (TO-263-3) and is classified as Active product status. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter ranges. Alternatives are necessary when the primary part experiences supply constraints, obsolescence, or when design flexibility across qualified manufacturers is required.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	30	A
Rds On (Max) @ 15A, 10V	40	mOhm
Power Dissipation (Max)	70	W
Gate Charge (Qg) @ 5V	17	nC
Input Capacitance (Ciss) @ 25V	660	pF
Operating Temperature Range	-55 to 175	°C
Package Type	D2PAK (TO-263-3)	Surface Mount
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): Equal to or greater than 60V
Continuous Drain Current (Id): Equal to or greater than 30A at 25°C
Package Type: D2PAK (TO-263-3) surface mount configuration
Operating Temperature Range: Minimum -55°C to maximum 175°C
RoHS Compliance: ROHS3 Compliant
Moisture Sensitivity Level: MSL 1 (Unlimited)

Secondary Compatibility Parameters:

Rds On performance within acceptable thermal and switching loss margins
Gate charge characteristics compatible with existing drive circuitry
Input capacitance within acceptable switching speed parameters

Parts are grouped into two categories: Direct Equivalents (matching or exceeding all primary criteria with minimal parameter variance) and Functional Alternatives (meeting primary criteria with acceptable parameter trade-offs).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On @ 10V (mOhm)	Power Dissipation (W)	Qg @ 5V (nC)	Ciss @ 25V (pF)	Product Status	Package
STB36NF06LT4	STMicroelectronics	60	30	40 @ 15A	70	17	660	Active	D2PAK
BUK9635-55A,118	Nexperia USA Inc.	55	34	32 @ 25A	85	-	1173	Active	D2PAK
PHB32N06LT,118	Nexperia USA Inc.	60	34	37 @ 20A	97	17	1280	Active	D2PAK
IRLZ34NSTRLPBF	Infineon Technologies	55	30	35 @ 16A	68	25	880	Active	D2PAK
IRFZ34NSTRLPBF	Infineon Technologies	55	29	40 @ 16A	68	34	700	Active	D2PAK
PSMN015-60BS,118	Nexperia USA Inc.	60	50	14.8 @ 15A	86	20.9	1220	Active	D2PAK
BUK7635-55A,118	Nexperia USA Inc.	55	35	35 @ 20A	85	-	872	Obsolete	D2PAK

Engineering Selection Recommendations

Direct Equivalent - Recommended for Primary Substitution:

PHB32N06LT,118 (Nexperia USA Inc.) is the primary substitute. This part maintains 60V Vdss matching the original specification, exceeds the 30A continuous drain current requirement at 34A, and is packaged identically in D2PAK. Both parts are Active status with ROHS3 compliance and MSL 1 rating. Gate charge is identical at 17 nC @ 5V, ensuring compatible drive circuit performance. The higher power dissipation rating (97W vs. 70W) provides additional thermal margin.

Functional Alternatives - Secondary Substitution Options:

PSMN015-60BS,118 (Nexperia USA Inc.) maintains 60V Vdss and significantly exceeds current capability at 50A. This part is suitable for applications requiring higher current headroom. The substantially lower Rds On (14.8 mOhm @ 15A) reduces conduction losses. Active status and ROHS3 compliance are confirmed.

IRLZ34NSTRLPBF (Infineon Technologies) matches the 30A continuous drain current specification exactly and is Active status with ROHS3 compliance. The 55V Vdss is 5V lower than the original; this part is suitable only for applications where the lower voltage rating does not compromise circuit margin. Rds On performance (35 mOhm @ 16A) is superior to the original.

Not Recommended for Substitution:

BUK7635-55A,118 is classified as Obsolete and should not be selected for new designs or ongoing production.

IRFZ34NSTRLPBF has continuous drain current of 29A, which is below the 30A specification of the original part, and is not suitable as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can BUK9635-55A,118 be used as a direct replacement for STB36NF06LT4?

A: BUK9635-55A,118 meets the primary substitution criteria with 55V Vdss, 34A continuous drain current, and D2PAK packaging. The 5V reduction in Vdss must be evaluated against circuit design margins. The part is Active status with ROHS3 compliance. Rds On performance is superior at 32 mOhm @ 25A. This part is functionally compatible when voltage margin is confirmed.

Q: What is the difference between the Infineon IRLZ34NSTRLPBF and IRFZ34NSTRLPBF options?

A: Both are Infineon HEXFET® series parts in D2PAK packaging with 55V Vdss. IRLZ34NSTRLPBF provides 30A continuous drain current matching the original specification, while IRFZ34NSTRLPBF provides 29A. IRLZ34NSTRLPBF has lower gate charge (25 nC @ 5V vs. 34 nC @ 10V), resulting in faster switching characteristics. IRLZ34NSTRLPBF is the preferred Infineon option when 55V operation is acceptable.

Q: Is PSMN015-60BS,118 suitable for all applications using STB36NF06LT4?

A: PSMN015-60BS,118 maintains 60V Vdss and exceeds current capability at 50A. The significantly lower Rds On (14.8 mOhm @ 15A) reduces conduction losses and heat generation. This part is suitable for applications where higher current capacity and lower on-resistance provide design benefits. Thermal design must account for the different power dissipation characteristics.

Q: Why is BUK7635-55A,118 not recommended?

A: BUK7635-55A,118 is classified as Obsolete product status. New designs and ongoing production should not depend on obsolete components due to supply uncertainty and potential discontinuation.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental and regulatory compliance of the original STB36NF06LT4.

Q: What packaging considerations apply to these substitutes?

A: All substitute parts use D2PAK (TO-263-3) surface mount packaging with identical pin configuration and thermal tab design. Direct PCB layout compatibility is maintained across all listed alternatives.

Q: How does gate charge affect substitution suitability?

A: Gate charge determines switching speed and drive circuit requirements. STB36NF06LT4 specifies 17 nC @ 5V. PHB32N06LT,118 matches this specification exactly. IRLZ34NSTRLPBF (25 nC @ 5V) and IRFZ34NSTRLPBF (34 nC @ 10V) have higher gate charge, requiring evaluation of drive circuit capability. BUK9635-55A,118 does not specify gate charge in the provided data.

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