Equivalent & Substitute Parts for IPB034N03LGATMA1

Part Overview

The IPB034N03LGATMA1 is an N-Channel 30V 80A MOSFET manufactured by Infineon Technologies, part of the OptiMOS™ series. This device is designed for surface mount applications in the D2PAK (TO-263-3) package and is rated for continuous drain current of 80A at 25°C with a maximum power dissipation of 94W.

The IPB034N03LGATMA1 has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Substitute parts must maintain electrical compatibility across critical parameters including drain-source voltage rating, continuous drain current capability, on-resistance characteristics, and thermal performance within the same package family.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	80	A
Rds On (Max) @ 30A, 10V	3.4	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.2	V
Gate Charge (Qg) @ 10V	51	nC
Input Capacitance (Ciss) @ 15V	5300	pF
Power Dissipation (Max)	94	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-263-3, D2PAK	-
Mounting Type	Surface Mount	-

Substitute Part Grouping Explanation

Substitution eligibility for the IPB034N03LGATMA1 is determined by the following critical parameters:

Voltage Rating Compatibility: All substitute parts must maintain a Drain to Source Voltage (Vdss) rating of 30V. This parameter is non-negotiable and defines the maximum voltage the device can withstand between drain and source terminals.

Current Handling Capability: Substitute parts must support a continuous drain current (Id) rating of 80A or greater at 25°C. Parts with lower current ratings cannot be used as direct substitutes.

On-Resistance (Rds On): The maximum on-resistance must be comparable to or lower than the original specification of 3.4mOhm @ 30A, 10V. Higher on-resistance values result in increased power dissipation and thermal stress.

Package Compatibility: All substitute parts must use the D2PAK (TO-263-3) surface mount package to ensure mechanical and thermal compatibility with existing PCB layouts and thermal management solutions.

Operating Temperature Range: Substitute parts must support the full operating temperature range of -55°C to 175°C (TJ).

Electrical Characteristics: Gate threshold voltage, gate charge, and input capacitance must fall within acceptable ranges to ensure proper gate drive circuit compatibility and switching performance.

Parameter Comparison

Parameter	IPB034N03LGATMA1	IRL7833STRLPBF	PSMN3R4-30BL,118	PSMN4R3-30BL,118	STB155N3LH6
Manufacturer	Infineon	Infineon	NXP USA Inc.	Nexperia USA Inc.	STMicroelectronics
Vdss (V)	30	30	30	30	30
Id @ 25°C (A)	80	150	100	100	80
Rds On (Max) (mOhm)	3.4 @ 30A, 10V	3.8 @ 38A, 10V	3.3 @ 25A, 10V	4.1 @ 15A, 10V	3.0 @ 40A, 10V
Vgs(th) (V)	2.2 @ 250µA	2.3 @ 250µA	2.15 @ 1mA	2.15 @ 1mA	2.5 @ 250µA
Qg (nC)	51 @ 10V	47 @ 4.5V	64 @ 10V	41.5 @ 10V	80 @ 5V
Ciss (pF)	5300 @ 15V	4170 @ 15V	3907 @ 15V	2400 @ 15V	3800 @ 25V
Power Dissipation (W)	94	140	114	103	110
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK
Product Status	Obsolete	Not For New Designs	Active	Active	Active
RoHS Compliance	ROHS3	ROHS3	-	ROHS3	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

PSMN3R4-30BL,118 and PSMN4R3-30BL,118 from Nexperia USA Inc. are the preferred substitutes. Both devices maintain 30V Vdss rating and support 100A continuous drain current, exceeding the original 80A specification. Both parts carry Active product status, ensuring long-term availability and supply chain stability. PSMN3R4-30BL,118 offers superior on-resistance performance at 3.3mOhm, while PSMN4R3-30BL,118 provides lower input capacitance at 2400pF, beneficial for high-frequency switching applications. Both are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating.

Secondary Substitute (Active Product Status):

STB155N3LH6 from STMicroelectronics is an active product offering equivalent 80A continuous drain current matching the original specification. This device features the lowest on-resistance at 3.0mOhm @ 40A, 10V, providing superior thermal performance. STB155N3LH6 is ROHS3 compliant with MSL 1 rating and maintains full operating temperature compatibility.

Alternative Substitute (Not For New Designs):

IRL7833STRLPBF from Infineon Technologies offers higher current capability at 150A and increased power dissipation rating of 140W. However, this device carries "Not For New Designs" status, limiting its suitability for new applications. It remains available for legacy system support and maintenance applications where supply continuity is critical.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements. All devices are classified under ECCN EAR99 and HTSUS 8541.29.0095, ensuring consistent export and tariff classification.

Frequently Asked Questions (FAQ)

Q: Can PSMN4R3-30BL,118 be used as a direct replacement for IPB034N03LGATMA1?

A: Yes. PSMN4R3-30BL,118 maintains the required 30V Vdss rating, supports 100A continuous drain current (exceeding the original 80A), operates across the full -55°C to 175°C temperature range, and uses the identical D2PAK package. The device is ROHS3 compliant with MSL 1 rating. Gate drive circuit compatibility is ensured through comparable gate threshold voltage (2.15V) and acceptable gate charge characteristics (41.5nC @ 10V).

Q: What is the primary advantage of STB155N3LH6 over other substitutes?

A: STB155N3LH6 delivers the lowest on-resistance specification at 3.0mOhm @ 40A, 10V, resulting in reduced power dissipation and improved thermal efficiency. This characteristic is advantageous in high-current applications where thermal management is critical. The device maintains 80A continuous drain current matching the original specification exactly.

Q: Why is IRL7833STRLPBF marked "Not For New Designs"?

A: IRL7833STRLPBF carries "Not For New Designs" status indicating the manufacturer has designated this part for legacy support only. While electrically compatible with higher current capability (150A), new designs should prioritize active products such as PSMN3R4-30BL,118 or PSMN4R3-30BL,118 to ensure long-term supply availability and manufacturer support.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts use the D2PAK (TO-263-3) surface mount package, ensuring mechanical compatibility with existing PCB layouts. Thermal interface characteristics remain consistent across all substitutes, allowing direct mounting to existing heat sinks and thermal management solutions without modification.

Q: What gate drive voltage is required for substitute parts?

A: All substitute parts operate with gate drive voltages of 4.5V and 10V, matching the original IPB034N03LGATMA1 specification. Gate threshold voltages range from 2.15V to 2.5V, ensuring compatibility with standard gate drive circuits. Maximum gate voltage rating is ±20V across all devices.

Q: How do input capacitance differences affect circuit design?

A: Input capacitance (Ciss) varies among substitutes from 2400pF (PSMN4R3-30BL,118) to 5300pF (IPB034N03LGATMA1). Lower capacitance values reduce gate drive current requirements and enable faster switching transitions, beneficial for high-frequency applications. Higher capacitance values require proportionally higher gate drive current but do not prevent substitution in standard switching applications.

Q: Are moisture sensitivity and RoHS compliance consistent across all substitutes?

A: Yes. All recommended substitute parts carry MSL 1 (Unlimited) moisture sensitivity rating and ROHS3 compliance, matching the original part's environmental and regulatory specifications. REACH status is unaffected for all devices, ensuring consistent regulatory compliance across supply chain applications.

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