IPB06N03LB N-Channel MOSFET 30V 50A Equivalent & Substitute Parts

Part Overview

The IPB06N03LB is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage with 50A continuous drain current at 25°C. This device is housed in a D2PAK (TO-263-3) surface mount package and is designed for high-current switching applications. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within the same package family.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	50	A (Tc)
Rds On (Max) @ Id, Vgs	6.3	mOhm @ 50A, 10V
Gate Threshold Voltage Vgs(th) (Max)	2	V @ 40µA
Gate Charge (Qg) (Max)	22	nC @ 5V
Power Dissipation (Max)	83	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	Surface Mount
Vgs (Max)	±20	V

Substitute Part Grouping Explanation

Substitution of the IPB06N03LB is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Drain to Source Voltage (Vdss): Must equal 30V
Package Type: Must be D2PAK (TO-263-3) surface mount
FET Type: Must be N-Channel MOSFET
Operating Temperature Range: Must support -55°C to 175°C
Gate Voltage Rating (Vgs Max): Must support ±20V

Functional Compatibility Parameters:

Continuous Drain Current (Id): Substitute must meet or exceed 50A at 25°C
Rds On (Max): Lower or equal values are acceptable
Gate Charge (Qg): Lower or equal values are acceptable
Power Dissipation: Must support thermal requirements of the application

The substitute parts listed below satisfy all critical matching parameters and maintain functional compatibility within the specified electrical operating range.

Parameter Comparison

Parameter	IPB06N03LB (Main)	PSMN017-30BL,118	PSMN4R3-30BL,118	Unit
Manufacturer	Infineon Technologies	Nexperia USA Inc.	Nexperia USA Inc.	—
Drain to Source Voltage (Vdss)	30	30	30	V
Continuous Drain Current (Id) @ 25°C	50	32	100	A (Tc)
Rds On (Max)	6.3 @ 50A, 10V	17 @ 10A, 10V	4.1 @ 15A, 10V	mOhm
Gate Threshold Voltage Vgs(th) (Max)	2	2.15	2.15	V
Gate Charge (Qg) (Max)	22 @ 5V	10.7 @ 10V	41.5 @ 10V	nC
Power Dissipation (Max)	83	47	103	W (Tc)
Operating Temperature Range	-55 to 175	-55 to 175	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	D2PAK (TO-263-3)	D2PAK (TO-263-3)	Surface Mount
Vgs (Max)	±20	±20	±20	V
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	—
Product Status	Discontinued	Obsolete	Active	—

Engineering Selection Recommendations

PSMN4R3-30BL,118 (Primary Substitute): This part is the preferred substitute for the IPB06N03LB. It maintains identical voltage ratings (30V Vdss) and package configuration (D2PAK). The PSMN4R3-30BL,118 provides 100A continuous drain current, exceeding the original 50A specification, with superior on-resistance characteristics (4.1 mOhm vs. 6.3 mOhm). The device is currently in active production status and carries ROHS3 compliance certification, meeting modern regulatory requirements. Higher power dissipation capability (103W vs. 83W) provides additional thermal margin for demanding applications.

PSMN017-30BL,118 (Secondary Substitute): This part maintains the 30V Vdss rating and D2PAK package but provides only 32A continuous drain current, below the original 50A specification. This substitute is suitable only for applications where the required drain current does not exceed 32A. The device is classified as obsolete. ROHS3 compliance is provided. Selection of this part requires verification that application current requirements do not exceed the 32A rating.

Compliance Considerations: Both substitute parts carry ROHS3 compliance, whereas the original IPB06N03LB is RoHS non-compliant. This upgrade in regulatory compliance may be required for new designs or procurement policies. All three devices maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can PSMN017-30BL,118 be used as a direct replacement for IPB06N03LB?

A: PSMN017-30BL,118 is mechanically and electrically compatible in terms of package and voltage rating. However, it provides only 32A continuous drain current versus the original 50A specification. This substitute is suitable only if the application current requirement does not exceed 32A.

Q: What are the advantages of PSMN4R3-30BL,118 over the original IPB06N03LB?

A: PSMN4R3-30BL,118 provides doubled drain current capacity (100A vs. 50A), lower on-resistance (4.1 mOhm vs. 6.3 mOhm), higher power dissipation capability (103W vs. 83W), active product status with ongoing availability, and ROHS3 compliance. The D2PAK package and 30V rating remain identical.

Q: Are all substitute parts available in the same D2PAK package?

A: Yes. Both PSMN017-30BL,118 and PSMN4R3-30BL,118 are supplied in D2PAK (TO-263-3) surface mount packages, identical to the original IPB06N03LB. No PCB layout modifications are required for package compatibility.

Q: What is the difference in gate charge between these devices?

A: IPB06N03LB has 22 nC gate charge at 5V. PSMN017-30BL,118 has 10.7 nC at 10V (lower charge, faster switching). PSMN4R3-30BL,118 has 41.5 nC at 10V (higher charge, slower switching). Gate charge affects driver circuit requirements and switching speed characteristics.

Q: Do all parts support the same operating temperature range?

A: Yes. All three devices support -55°C to 175°C junction temperature range, ensuring thermal compatibility across the full operating envelope.

Q: What is the inventory status of these substitute parts?

A: PSMN4R3-30BL,118 has 10,750 pieces in stock (active product). PSMN017-30BL,118 has 2,767 pieces in stock (obsolete status). The original IPB06N03LB is discontinued.

Q: Are there any differences in gate threshold voltage?

A: IPB06N03LB has Vgs(th) of 2V at 40µA. Both substitutes have Vgs(th) of 2.15V at 1mA. These minor differences fall within normal device variation and do not affect circuit compatibility for standard gate drive voltages.

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