IRLZ34NSTRR N-Channel 55V 30A MOSFET Equivalent & Substitute Parts

Part Overview

The IRLZ34NSTRR is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 55V drain-to-source voltage and 30A continuous drain current in a D2PAK surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The HEXFET® series device operates across a temperature range of -55°C to 175°C and is suitable for applications requiring moderate voltage and current switching capabilities in a compact surface mount form factor.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	30	A (Tc)
On-Resistance (Rds On) @ 16A, 10V	35	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2	V
Gate Charge (Qg) @ 5V	25	nC
Power Dissipation (Tc)	68	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	Surface Mount
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the IRLZ34NSTRR is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Minimum 55V required; higher ratings are acceptable
Continuous Drain Current (Id): Minimum 30A required; higher ratings are acceptable
On-Resistance (Rds On): Maximum 35mOhm @ specified gate voltage; lower values are acceptable
Gate Threshold Voltage (Vgs(th)): Maximum 2V @ 250µA; lower values are acceptable
Package Type: D2PAK (TO-263-3) surface mount configuration required
Operating Temperature Range: Minimum -55°C to 175°C required

Substitution Categories:

Category 1: Parametric Equivalents (Identical Electrical Performance) Parts meeting all primary criteria with matching or superior electrical specifications and identical package configuration.

Category 2: Manufacturer Recommended Substitutes (Enhanced Performance) Parts exceeding primary criteria in current rating, on-resistance, or power dissipation while maintaining voltage and package compatibility.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Vgs(th) (V)	Qg (nC)	Package	Status	RoHS
IRLZ34NSTRR	Infineon	55	30	35 @ 16A, 10V	2 @ 250µA	25 @ 5V	D2PAK	Obsolete	Non-compliant
IRLZ34NSTRLPBF	Infineon	55	30	35 @ 16A, 10V	2 @ 250µA	25 @ 5V	D2PAK	Active	ROHS3 Compliant
IRLZ34SPBF	Vishay Siliconix	60	30	50 @ 18A, 5V	2 @ 250µA	35 @ 5V	D2PAK	Active	ROHS3 Compliant
IRLZ34STRL	Vishay Siliconix	60	30	50 @ 18A, 5V	2 @ 250µA	35 @ 5V	D2PAK	Active	Non-compliant
IRLZ34STRR	Vishay Siliconix	60	30	50 @ 18A, 5V	2 @ 250µA	35 @ 5V	D2PAK	Active	Non-compliant
BUK7635-55A,118	Nexperia USA Inc.	55	35	35 @ 20A, 10V	4 @ 1mA	—	D2PAK	Obsolete	ROHS3 Compliant
PSMN015-60BS,118	Nexperia USA Inc.	60	50	14.8 @ 15A, 10V	4 @ 1mA	20.9 @ 10V	D2PAK	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: IRLZ34NSTRLPBF

The IRLZ34NSTRLPBF is the direct parametric equivalent to the obsolete IRLZ34NSTRR. This Infineon Technologies part maintains identical electrical specifications across all critical parameters: 55V Vdss, 30A continuous drain current, 35mOhm on-resistance, and 2V gate threshold voltage. The IRLZ34NSTRLPBF is classified as active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Inventory availability is 6700 units. This part is supplied in Cut Tape and Digi-Reel® packaging formats.

Secondary Recommendation: IRLZ34SPBF (Vishay Siliconix)

The IRLZ34SPBF provides functional compatibility with a 5V higher Vdss rating (60V versus 55V). Continuous drain current remains at 30A. This part is active with ROHS3 compliance and 1650 units in stock. The higher voltage rating provides additional design margin in applications where the 55V specification is not a hard constraint. Supplied in Tube packaging.

Alternative Recommendation: PSMN015-60BS,118 (Nexperia USA Inc.)

The PSMN015-60BS,118 offers enhanced current handling capability at 50A continuous drain current with superior on-resistance of 14.8mOhm at 15A, 10V. Vdss is rated at 60V. This part is active with ROHS3 compliance and 12675 units in stock. Selection of this part is appropriate for applications requiring higher current capacity or lower conduction losses. Supplied in Tape & Reel packaging.

Compliance Consideration:

For applications requiring RoHS3 compliance, select IRLZ34NSTRLPBF, IRLZ34SPBF, BUK7635-55A,118, or PSMN015-60BS,118. The IRLZ34STRL and IRLZ34STRR are non-compliant and should not be selected for new designs subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q1: Can IRLZ34SPBF directly replace IRLZ34NSTRR in all applications?

The IRLZ34SPBF is mechanically and functionally compatible in D2PAK package applications. The 60V Vdss rating exceeds the 55V specification of the IRLZ34NSTRR, providing additional voltage margin. However, the on-resistance specification differs: IRLZ34SPBF is rated at 50mOhm @ 18A, 5V versus 35mOhm @ 16A, 10V for the IRLZ34NSTRR. Applications sensitive to conduction losses or gate drive voltage must evaluate this difference.

Q2: What is the difference between IRLZ34NSTRLPBF and IRLZ34NSTRR?

Both parts are electrically identical with matching Vdss, Id, Rds On, and Vgs(th) specifications. The primary difference is product status: IRLZ34NSTRR is obsolete while IRLZ34NSTRLPBF is active. Additionally, IRLZ34NSTRLPBF is ROHS3 compliant while IRLZ34NSTRR is non-compliant. IRLZ34NSTRLPBF is the recommended replacement for procurement and new designs.

Q3: Is PSMN015-60BS,118 suitable for applications designed for 30A operation?

Yes. PSMN015-60BS,118 is rated for 50A continuous drain current, which exceeds the 30A requirement. The part operates within the same temperature range (-55°C to 175°C) and D2PAK package configuration. The superior on-resistance (14.8mOhm) reduces conduction losses compared to the original specification. This part is appropriate for 30A applications and provides additional current headroom for design margin.

Q4: Why does BUK7635-55A,118 have a higher gate threshold voltage (4V) compared to IRLZ34NSTRR (2V)?

Gate threshold voltage differences reflect different semiconductor process technologies between manufacturers. BUK7635-55A,118 uses Nexperia's TrenchMOS™ technology while IRLZ34NSTRR uses Infineon's HEXFET® technology. The 4V threshold of BUK7635-55A,118 requires higher gate drive voltage for full on-state operation. Applications must verify gate driver capability to supply the required voltage levels.

Q5: What packaging formats are available for substitute parts?

IRLZ34NSTRLPBF is supplied in Cut Tape (CT) and Digi-Reel® formats. IRLZ34SPBF is supplied in Tube packaging. IRLZ34STRL and IRLZ34STRR have unspecified packaging. PSMN015-60BS,118 is supplied in Tape & Reel (TR) format. Verify packaging compatibility with assembly equipment and procurement requirements before part selection.

Q6: Are all substitute parts suitable for automotive applications?

BUK7635-55A,118 carries automotive grade qualification with AEC-Q101 certification. Other substitute parts listed do not specify automotive qualification. Applications requiring automotive-grade components should select BUK7635-55A,118 or verify alternative parts against specific automotive standards.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message