IRF3415STRRPBF Equivalent & Substitute Parts

Part Overview

The IRF3415STRRPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 150V drain-to-source voltage with 43A continuous drain current in D2PAK surface mount packaging. 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 wide temperature range from -55°C to 175°C and is suitable for applications requiring moderate current switching at 150V levels.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	150	V
Continuous Drain Current (Id) @ 25°C	43	A (Tc)
On-Resistance (Rds On) @ 22A, 10V	42	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 10V	200	nC
Input Capacitance (Ciss) @ 25V	2400	pF
Power Dissipation (Max)	3.8 (Ta), 200 (Tc)	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	Surface Mount
Moisture Sensitivity Level	1 (Unlimited)	MSL

Substitute Part Grouping Explanation

Substitution of the IRF3415STRRPBF is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Direct Substitution:

Drain-to-Source Voltage (Vdss): Must equal or exceed 150V
Package Type: Must be D2PAK (TO-263-3) surface mount
Continuous Drain Current (Id): Must support minimum 43A at Tc
On-Resistance (Rds On): Must not exceed 42mOhm @ specified conditions
Gate Threshold Voltage: Must be compatible with 10V drive voltage
Operating Temperature Range: Must encompass -55°C to 175°C minimum

Substitute Categories:

Category 1 - Parametric Equivalent (Active Status): IRF3415STRLPBF is a parametric equivalent with identical electrical specifications but active product status and improved packaging availability (Cut Tape & Digi-Reel®).

Category 2 - Higher Performance Substitutes (Manufacturer Recommended): IRFS4228PBF, PHB45NQ15T,118, and AOB254L provide equal or superior performance with enhanced current ratings, lower on-resistance, or improved thermal characteristics while maintaining 150V Vdss and D2PAK packaging.

Category 3 - Higher Voltage Alternative: STB75NF20 operates at 200V Vdss with superior current handling (75A) and lower on-resistance, suitable for applications requiring voltage margin or higher current capacity.

Parameter Comparison

Parameter	IRF3415STRRPBF	IRF3415STRLPBF	IRFS4228PBF	PHB45NQ15T,118	AOB254L	STB75NF20
Manufacturer	Infineon	Infineon	Infineon	Nexperia	Alpha & Omega	STMicroelectronics
Vdss (V)	150	150	150	150	150	200
Id @ 25°C (A)	43	43	83	45.1	32 (Tc)	75
Rds On (mOhm)	42 @ 22A, 10V	42 @ 22A, 10V	15 @ 33A, 10V	42 @ 20A, 10V	46 @ 20A, 10V	34 @ 37A, 10V
Vgs(th) (V)	4 @ 250µA	4 @ 250µA	5 @ 250µA	4 @ 1mA	2.7 @ 250µA	4 @ 250µA
Qg (nC)	200 @ 10V	200 @ 10V	107 @ 10V	32 @ 10V	40 @ 10V	84 @ 10V
Ciss (pF)	2400 @ 25V	2400 @ 25V	4530 @ 25V	1770 @ 25V	2150 @ 75V	3260 @ 25V
Power Dissipation (W)	3.8 (Ta), 200 (Tc)	3.8 (Ta), 200 (Tc)	330 (Tc)	230 (Tc)	2.1 (Ta), 125 (Tc)	190 (Tc)
Tj Range (°C)	-55 to 175	-55 to 175	-40 to 175	-55 to 175	-55 to 175	-50 to 150
Package	D2PAK	D2PAK	D2PAK	D2PAK	TO-263 (D2PAK)	D2PAK
Product Status	Obsolete	Active	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: IRF3415STRLPBF is the preferred direct substitute. It maintains identical electrical specifications (150V, 43A, 42mOhm Rds On) and D2PAK packaging while offering active product status and ROHS3 compliance. This part is available in Cut Tape & Digi-Reel® packaging with 2187 units in stock, providing immediate procurement continuity.

Secondary Recommendation - Enhanced Performance: PHB45NQ15T,118 (Nexperia) provides a performance-matched alternative with 45.1A continuous drain current, lower gate charge (32nC vs. 200nC), and reduced input capacitance (1770pF vs. 2400pF). This device is active, ROHS3 compliant, and offers superior switching characteristics with 16517 units in stock. Operating temperature range matches the original (-55°C to 175°C).

Alternative for Higher Current Applications: IRFS4228PBF (Infineon) doubles the continuous drain current to 83A while maintaining 150V Vdss and D2PAK packaging. On-resistance improves to 15mOhm at 33A. This device is suitable for applications requiring higher current capacity with enhanced thermal performance (330W Tc). Note: Product status is obsolete; 2300 units available.

Alternative for Voltage Margin: STB75NF20 (STMicroelectronics) operates at 200V Vdss with 75A continuous drain current and 34mOhm on-resistance. This device is active and ROHS3 compliant, providing voltage headroom for applications with transient overvoltage conditions. Operating temperature range is -50°C to 150°C (lower minimum than original). 1373 units in stock.

Lower Current Alternative: AOB254L (Alpha & Omega Semiconductor) provides 32A (Tc) continuous drain current at 150V with 46mOhm on-resistance. This device is active, ROHS3 compliant, and offers the lowest gate charge (40nC) and input capacitance (2150pF) among substitutes. Suitable for applications where current requirements are lower than 43A. 10165 units in stock.

Frequently Asked Questions (FAQ)

Q: Can IRF3415STRLPBF be used as a direct drop-in replacement for IRF3415STRRPBF?

A: Yes. IRF3415STRLPBF is a parametric equivalent with identical electrical specifications: 150V Vdss, 43A continuous drain current, 42mOhm on-resistance, and D2PAK packaging. The primary difference is product status (active vs. obsolete) and packaging format (Cut Tape & Digi-Reel® vs. standard). No circuit modifications are required.

Q: What is the difference between the substitute parts in terms of current handling?

A: IRF3415STRLPBF and PHB45NQ15T,118 maintain the 43A and 45.1A ratings respectively, matching the original specification. IRFS4228PBF provides 83A, and STB75NF20 provides 75A for applications requiring higher current capacity. AOB254L is rated for 32A (Tc), suitable for lower current applications.

Q: Are all substitute parts available in D2PAK packaging?

A: Yes. All listed substitutes are available in D2PAK (TO-263-3) surface mount packaging, ensuring mechanical compatibility with the original IRF3415STRRPBF footprint.

Q: Which substitute offers the best switching performance?

A: PHB45NQ15T,118 offers the lowest gate charge (32nC) and input capacitance (1770pF), resulting in faster switching transitions and reduced drive circuit stress compared to the original 200nC gate charge and 2400pF capacitance.

Q: What is the impact of selecting STB75NF20 instead of IRF3415STRLPBF?

A: STB75NF20 operates at 200V Vdss (vs. 150V), providing 50V voltage margin. This is beneficial for applications with transient overvoltage conditions. However, the operating temperature range is -50°C to 150°C (vs. -55°C to 175°C), which may be limiting for extreme temperature applications. On-resistance improves to 34mOhm at higher current (37A).

Q: Are all substitutes RoHS3 compliant?

A: IRF3415STRLPBF, PHB45NQ15T,118, AOB254L, and STB75NF20 are all ROHS3 compliant. IRFS4228PBF RoHS status is not specified in the provided data.

Q: What is the inventory status for each substitute?

A: IRF3415STRLPBF: 2187 units; IRFS4228PBF: 2300 units; PHB45NQ15T,118: 16517 units; AOB254L: 10165 units; STB75NF20: 1373 units. PHB45NQ15T,118 offers the highest inventory availability.

Q: Can AOB254L be used in all applications where IRF3415STRRPBF is specified?

A: AOB254L is suitable for applications where continuous drain current does not exceed 32A (Tc). For applications requiring the full 43A rating, this device is not recommended. Verify actual circuit current requirements before selection.

Q: What are the key differences in gate threshold voltage among substitutes?

A: IRF3415STRRPBF, IRF3415STRLPBF, PHB45NQ15T,118, and STB75NF20 all specify 4V gate threshold voltage. IRFS4228PBF specifies 5V, and AOB254L specifies 2.7V. Lower threshold voltage (AOB254L) may require gate drive circuit adjustment for optimal performance.

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