IPP07N03LB G N-Channel 30V 50A MOSFET Equivalent & Substitute Parts

Part Overview

The IPP07N03LB G is an N-Channel 30V 50A MOSFET manufactured by Infineon Technologies in the OptiMOS™ series, housed in a TO-220-3 through-hole package. This device is classified as Obsolete, indicating it is no longer in active production. The part delivers 94W maximum power dissipation and operates across a temperature range of -55°C to 175°C (TJ).

Due to its obsolete status, sourcing new units from original manufacturing channels is limited. Equivalent and substitute parts listed below maintain electrical and mechanical compatibility within the specified parameter tolerances, enabling continued system design and maintenance without requiring significant circuit modifications.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	50	A (Tc)
Rds On (Max) @ 50A, 10V	6.6	mOhm
Gate Threshold Voltage (Vgs(th)) @ 40µA	2	V
Gate Charge (Qg) @ 5V	25	nC
Input Capacitance (Ciss) @ 15V	2782	pF
Power Dissipation (Max)	94	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-220-3	Through Hole
Vgs (Max)	±20	V

Substitute Part Grouping Explanation

Substitution eligibility for the IPP07N03LB G is determined by the following critical parameters:

Electrical Compatibility Criteria:

Drain to Source Voltage (Vdss) must equal or exceed 30V
Continuous Drain Current (Id) must meet or exceed 50A at 25°C
Rds On (Max) must not exceed 6.6 mOhm at the specified gate voltage
Gate Threshold Voltage (Vgs(th)) must fall within acceptable switching characteristics
Operating temperature range must encompass -55°C to 175°C (TJ)
Maximum gate voltage (Vgs) must be ±20V or greater

Mechanical Compatibility Criteria:

Package type must be TO-220-3 through-hole configuration
Mounting type must be through-hole
Pin configuration must match TO-220-3 standard

Compliance Criteria:

REACH Status: REACH Unaffected
ECCN: EAR99
HTSUS: 8541.29.0095

All substitute parts listed below satisfy these criteria within the allowed parameter tolerances for direct functional replacement.

Parameter Comparison

Parameter	IPP07N03LB G	IRL3803PBF	IRLB8748PBF	PSMN2R0-30PL,127	PSMN4R3-30PL,127
Manufacturer	Infineon	Infineon	Infineon	Nexperia USA Inc.	Nexperia USA Inc.
Vdss (V)	30	30	30	30	30
Id @ 25°C (A)	50	140	92	100	100
Rds On (Max) (mOhm)	6.6 @ 50A, 10V	6 @ 71A, 10V	4.8 @ 40A, 10V	2.1 @ 15A, 10V	4.3 @ 15A, 10V
Vgs(th) (V)	2 @ 40µA	1 @ 250µA	2.35 @ 50µA	2.15 @ 1mA	2.15 @ 1mA
Gate Charge (nC)	25 @ 5V	140 @ 4.5V	23 @ 4.5V	117 @ 10V	41.5 @ 10V
Ciss (pF)	2782 @ 15V	5000 @ 25V	2139 @ 15V	6810 @ 12V	2400 @ 12V
Power Dissipation (W)	94	200	75	211	103
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-220-3	TO-220AB	TO-220AB	TO-220AB	TO-220AB
Product Status	Obsolete	Not For New Designs	Active	Obsolete	Obsolete
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

IRLB8748PBF is the primary recommended substitute for new applications and ongoing production. This part carries Active product status, ensuring long-term availability and supply chain stability. It is ROHS3 compliant with MSL rating of 1 (Unlimited), indicating superior moisture handling characteristics compared to the original IPP07N03LB G. The IRLB8748PBF delivers 92A continuous drain current, exceeding the 50A requirement, with Rds On of 4.8 mOhm at 40A, 10V, providing improved on-state performance. Gate charge of 23 nC at 4.5V closely matches the original specification, minimizing driver circuit modifications.

IRL3803PBF serves as an alternative for applications requiring higher current capacity (140A). This part is classified as Not For New Designs but remains available in inventory. It provides superior power dissipation capability (200W) and lower Rds On (6 mOhm @ 71A, 10V), suitable for thermal-constrained applications. ROHS3 compliance and MSL rating of 1 ensure manufacturing compatibility.

PSMN4R3-30PL,127 offers a balanced substitute with 100A continuous drain current and 4.3 mOhm Rds On. This Nexperia part is ROHS3 compliant with MSL rating of 1. Gate charge of 41.5 nC at 10V is higher than the original, requiring verification of driver circuit capability in timing-sensitive applications.

PSMN2R0-30PL,127 provides the lowest Rds On (2.1 mOhm @ 15A, 10V) among substitutes, delivering superior efficiency in high-current applications. However, gate charge of 117 nC at 10V is significantly elevated, requiring driver circuit assessment. This part is classified as Obsolete.

All substitute parts maintain 30V Vdss rating, TO-220-3 package compatibility, -55°C to 175°C operating range, and ±20V maximum gate voltage specification. REACH Status remains REACH Unaffected across all options.

Frequently Asked Questions (FAQ)

Q: Can IRLB8748PBF directly replace IPP07N03LB G without circuit modifications?

A: IRLB8748PBF is electrically compatible as a direct replacement. Both parts share identical Vdss (30V), operating temperature range (-55°C to 175°C), and Vgs (Max) (±20V). The IRLB8748PBF exceeds the 50A continuous drain current requirement at 92A and provides superior Rds On performance (4.8 mOhm vs. 6.6 mOhm). Gate charge of 23 nC closely matches the original 25 nC specification. TO-220-3 package compatibility is maintained. No circuit modifications are required for basic functionality. However, thermal design should be reviewed as power dissipation capability differs (75W vs. 94W).

Q: What is the difference between TO-220-3 and TO-220AB packages?

A: Both designations refer to the same three-pin through-hole package configuration with identical pin spacing and mounting requirements. TO-220-3 and TO-220AB are functionally equivalent for PCB layout and assembly purposes. All substitute parts listed use TO-220AB designation, which is the current industry standard nomenclature for this package type.

Q: Why does PSMN2R0-30PL,127 have significantly lower Rds On than other substitutes?

A: Rds On is measured at different drain current levels across the part family. PSMN2R0-30PL,127 specifies Rds On at 15A, 10V (2.1 mOhm), while IPP07N03LB G is specified at 50A, 10V (6.6 mOhm). Lower measurement current results in lower Rds On values. At equivalent current levels, Rds On performance varies based on die design and process technology. PSMN2R0-30PL,127 exhibits superior on-state efficiency, making it suitable for applications prioritizing power loss reduction.

Q: Is IRLB8748PBF suitable for applications requiring the exact 50A current rating?

A: Yes. IRLB8748PBF is rated for 92A continuous drain current at 25°C, which exceeds the 50A requirement of IPP07N03LB G. The higher current rating provides design margin and does not create compatibility issues. The part will operate safely at 50A with improved thermal performance due to lower Rds On (4.8 mOhm vs. 6.6 mOhm), resulting in reduced power dissipation at the same current level.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings in the comparison?

A: MSL rating indicates moisture sensitivity during storage and handling. IPP07N03LB G carries MSL 3 (168 Hours), requiring controlled storage conditions and bake-out procedures before reflow soldering. All substitute parts carry MSL 1 (Unlimited), indicating superior moisture resistance and eliminating special storage and handling requirements. MSL 1 parts can be stored at standard ambient conditions without moisture-related degradation, reducing manufacturing process complexity.

Q: Can PSMN4R3-30PL,127 be used in applications with tight timing requirements?

A: PSMN4R3-30PL,127 carries gate charge of 41.5 nC at 10V, compared to 25 nC for IPP07N03LB G. Higher gate charge increases switching time and may affect circuit timing in applications with fast switching requirements. Driver circuit current capability must be verified to ensure adequate gate drive voltage rise time. In applications with relaxed timing constraints or high-current gate drivers, this part is suitable. For timing-critical applications, IRLB8748PBF (23 nC gate charge) is preferred.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All four substitute parts (IRL3803PBF, IRLB8748PBF, PSMN2R0-30PL,127, PSMN4R3-30PL,127) carry ROHS3 Compliant status. IPP07N03LB G does not specify RoHS compliance. ROHS3 compliance ensures lead-free construction and compliance with European Union Restriction of Hazardous Substances regulations, meeting current manufacturing and environmental standards.

Q: Which substitute part offers the best long-term availability?

A: IRLB8748PBF carries Active product status, indicating ongoing production and manufacturer support. IRL3803PBF is classified as Not For New Designs, indicating limited future availability. PSMN2R0-30PL,127 and PSMN4R3-30PL,127 are both Obsolete. For applications requiring long-term supply chain stability and future design iterations, IRLB8748PBF is the recommended choice.

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