IRFS52N15DTRRP N-Channel MOSFET 150V 51A Equivalent & Substitute Parts

Part Overview

The IRFS52N15DTRRP is an N-Channel MOSFET manufactured by Infineon Technologies, designed for surface mount applications in the D2PAK package. This device operates at 150V drain-to-source voltage with a continuous drain current rating of 51A at 25°C case temperature. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges to ensure direct replacement capability.

Substiute Parts

IRFS52N15DTRRP

Infineon TechnologiesIn Stock: 699IRFS52N15DTRRP Datasheet

Current PartRFQ

IRFS52N15DTRLP

Infineon TechnologiesIn Stock: 8912IRFS52N15DTRLP Datasheet

MFR RecommendedRFQ

STB75NF20

STMicroelectronicsIn Stock: 1438STB75NF20 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRFS52N15DTRRP are selected based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• FET Type: N-Channel topology
• Drain-to-Source Voltage (Vdss): Equal to or greater than 150V
• Continuous Drain Current (Id): Equal to or greater than 51A at 25°C case temperature
• Package Type: D2PAK (TO-263-3) surface mount configuration
• On-State Resistance (Rds On): Within acceptable operating parameters for the application
• Gate Threshold Voltage (Vgs(th)): Compatible with existing gate drive circuitry
• Operating Temperature Range: Minimum -55°C to 175°C junction temperature capability
• Compliance Status: ROHS3 compliant, REACH unaffected

Substitution Logic: The IRFS52N15DTRLP represents a direct equivalent from the same manufacturer (Infineon Technologies) with identical electrical specifications and active product status, making it the primary substitute for the obsolete IRFS52N15DTRRP.

The STB75NF20 from STMicroelectronics represents an alternative substitute with enhanced voltage and current ratings (200V Vdss, 75A Id), maintaining D2PAK packaging and surface mount compatibility. This part operates within a slightly reduced temperature range (-50°C to 150°C) and exhibits marginally higher on-state resistance (34 mOhm vs. 32 mOhm), but remains functionally compatible for applications where the higher voltage and current ratings do not create design conflicts.

Parameter Comparison

Engineering Selection Recommendations

IRFS52N15DTRLP (Infineon Technologies) - Recommended Primary Substitute:

The IRFS52N15DTRLP is the preferred substitute for the obsolete IRFS52N15DTRRP. This part maintains identical electrical specifications across all critical parameters: 150V Vdss, 51A continuous drain current, 32 mOhm on-state resistance, and 89 nC gate charge. The device carries active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant with MSL 1 rating and identical operating temperature ranges (-55°C to 175°C). The D2PAK package configuration is identical, requiring no PCB layout modifications. This substitute provides direct pin-for-pin and functional compatibility without design changes.

STB75NF20 (STMicroelectronics) - Alternative Substitute:

The STB75NF20 serves as an alternative substitute when higher voltage and current ratings are acceptable within the application design. This device provides 200V Vdss and 75A continuous drain current, exceeding the original part specifications. The on-state resistance (34 mOhm) is marginally higher than the original (32 mOhm), and the maximum gate voltage is reduced to ±20V compared to ±30V. The operating temperature range is narrower (-50°C to 150°C) compared to the original (-55°C to 175°C). The D2PAK package remains identical. This substitute is suitable for applications where the enhanced voltage and current ratings do not create design conflicts and where the reduced temperature range and gate voltage specifications are acceptable.

Compliance and Certification:

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing. MSL 1 rating ensures unlimited shelf life without moisture bake-out requirements. All three parts carry EAR99 ECCN classification and identical HTSUS codes (8541.29.0095).

Frequently Asked Questions (FAQ)

Q: Can the IRFS52N15DTRLP be used as a direct replacement for the IRFS52N15DTRRP without any circuit modifications?

A: Yes. The IRFS52N15DTRLP is electrically and mechanically identical to the IRFS52N15DTRRP. All electrical parameters, gate drive requirements, and thermal characteristics are equivalent. The D2PAK package footprint is identical, requiring no PCB layout changes. This represents a direct pin-for-pin substitute.

Q: What are the key differences between the IRFS52N15DTRLP and the STB75NF20?

A: The primary differences are voltage and current ratings. The STB75NF20 provides 200V Vdss (versus 150V) and 75A continuous drain current (versus 51A). The on-state resistance is slightly higher (34 mOhm versus 32 mOhm). The maximum gate voltage is reduced to ±20V (versus ±30V), and the operating temperature range is narrower (-50°C to 150°C versus -55°C to 175°C). Both devices use identical D2PAK packaging.

Q: Is the STB75NF20 suitable for all applications using the IRFS52N15DTRRP?

A: The STB75NF20 is suitable only when the application can accommodate the reduced maximum gate voltage (±20V versus ±30V) and the narrower operating temperature range (-50°C to 150°C versus -55°C to 175°C). Applications requiring gate voltages exceeding ±20V or operating below -50°C or above 150°C require the IRFS52N15DTRLP. The higher voltage and current ratings of the STB75NF20 do not create compatibility issues in applications designed for the lower-rated original part.

Q: Are there any thermal performance differences between these substitutes?

A: The IRFS52N15DTRRP and IRFS52N15DTRLP have identical thermal specifications: 3.8W (Ta) and 230W (Tc) power dissipation. The STB75NF20 specifies 190W (Tc) power dissipation without a Ta rating. The slightly higher on-state resistance of the STB75NF20 (34 mOhm versus 32 mOhm) results in marginally higher conduction losses at equivalent current levels.

Q: Do all three parts require the same gate drive voltage?

A: The IRFS52N15DTRRP and IRFS52N15DTRLP both specify a maximum gate voltage of ±30V and a gate threshold voltage of 5V at 250µA. The STB75NF20 specifies a maximum gate voltage of ±20V and a lower gate threshold voltage of 4V at 250µA. Existing gate drive circuits designed for ±30V operation may require adjustment if the STB75NF20 is selected.

Q: What is the MSL rating for these parts, and does it affect storage or handling?

A: All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture sensitivity concerns. No moisture bake-out procedures are required prior to soldering, and standard dry storage conditions are sufficient.

Q: Are all three parts ROHS3 compliant?

A: Yes. The IRFS52N15DTRRP, IRFS52N15DTRLP, and STB75NF20 are all ROHS3 compliant and REACH unaffected. All three parts carry identical EAR99 ECCN classification and HTSUS code 8541.29.0095.