SFW9530TM Equivalent & Substitute Parts

Part Overview

The SFW9530TM is a P-Channel MOSFET manufactured by onsemi, rated for 100V drain-to-source voltage with 10.5A continuous drain current in a D2PAK surface mount package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement requirements. Substitute parts must maintain electrical compatibility across voltage ratings, current handling, and thermal characteristics while accommodating the D2PAK package form factor.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	100	V
Current - Continuous Drain (Id) @ 25°C	10.5	A (Tc)
Drive Voltage (Max Rds On)	10	V
Rds On (Max) @ Id, Vgs	300 mOhm @ 5.3A, 10V	—
Vgs(th) (Max) @ Id	4	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	38	nC @ 10V
Vgs (Max)	±30	V
Input Capacitance (Ciss) (Max) @ Vds	1035	pF @ 25V
Power Dissipation (Max)	3.8 (Ta), 66 (Tc)	W
Operating Temperature	-55 to 175	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SFW9530TM are selected based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following requirements:

Primary Compatibility Criteria:

FET Type: P-Channel
Drain to Source Voltage (Vdss): 100V (minimum)
Continuous Drain Current (Id): Equal to or greater than 10.5A
Package: D2PAK surface mount (TO-263-3)
Gate Threshold Voltage (Vgs(th)): 4V @ 250µA
Drive Voltage: 10V

Secondary Compatibility Criteria:

Operating Temperature Range: Minimum -55°C to 150°C
Moisture Sensitivity Level: 1 (Unlimited)
Regulatory Compliance: REACH and ECCN alignment

The IRF9530SPBF and IRF5210STRLPBF both meet these criteria and are classified as active products, providing long-term availability advantages over the obsolete SFW9530TM.

Parameter Comparison

Parameter	SFW9530TM (onsemi)	IRF9530SPBF (Vishay Siliconix)	IRF5210STRLPBF (Infineon Technologies)
FET Type	P-Channel	P-Channel	P-Channel
Drain to Source Voltage (Vdss)	100 V	100 V	100 V
Current - Continuous Drain (Id) @ 25°C	10.5 A (Tc)	12 A (Tc)	38 A (Tc)
Drive Voltage (Max Rds On)	10 V	10 V	10 V
Rds On (Max) @ Id, Vgs	300 mOhm @ 5.3A, 10V	300 mOhm @ 7.2A, 10V	60 mOhm @ 38A, 10V
Vgs(th) (Max) @ Id	4 V @ 250µA	4 V @ 250µA	4 V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	38 nC @ 10V	38 nC @ 10V	230 nC @ 10V
Vgs (Max)	±30 V	±20 V	±20 V
Input Capacitance (Ciss) (Max) @ Vds	1035 pF @ 25V	860 pF @ 25V	2780 pF @ 25V
Power Dissipation (Max)	3.8 W (Ta), 66 W (Tc)	3.7 W (Ta), 88 W (Tc)	3.1 W (Ta), 170 W (Tc)
Operating Temperature	-55 to 175 °C (TJ)	-55 to 175 °C (TJ)	-55 to 150 °C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
REACH Status	REACH Unaffected	REACH Affected	REACH Unaffected
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IRF9530SPBF (Vishay Siliconix) — Direct Equivalent

The IRF9530SPBF is the closest functional equivalent to the SFW9530TM. It maintains identical gate charge (38 nC @ 10V), on-resistance (300 mOhm @ 10V), and gate threshold voltage specifications. The continuous drain current rating of 12A exceeds the SFW9530TM requirement of 10.5A. Operating temperature range extends to 175°C, matching the original device. This part is classified as active with ROHS3 compliance and unlimited moisture sensitivity rating. The IRF9530SPBF is suitable for direct pin-compatible replacement in existing designs.

IRF5210STRLPBF (Infineon Technologies) — Higher Current Capability

The IRF5210STRLPBF provides superior current handling at 38A continuous drain current with significantly reduced on-resistance (60 mOhm @ 38A, 10V). This part is appropriate for applications requiring enhanced thermal performance or higher current margins. The maximum operating temperature is limited to 150°C, which is 25°C lower than the original specification. Gate charge increases to 230 nC @ 10V, and input capacitance rises to 2780 pF @ 25V, resulting in slower switching characteristics. The IRF5210STRLPBF is classified as active and ROHS3 compliant. Selection of this part requires verification that the reduced maximum junction temperature and increased gate charge are compatible with the application circuit.

Compliance Considerations

Both substitute parts carry ROHS3 compliance certification. The IRF9530SPBF is REACH Affected, while the IRF5210STRLPBF is REACH Unaffected. Both parts maintain EAR99 ECCN classification and HTSUS code 8541.29.0095 alignment with the original device.

Frequently Asked Questions (FAQ)

Q: Can the IRF9530SPBF be used as a direct replacement for the SFW9530TM?

A: Yes. The IRF9530SPBF is electrically and mechanically compatible with the SFW9530TM. Both devices share identical gate charge, on-resistance, and gate threshold voltage specifications. The IRF9530SPBF is rated for 12A continuous drain current, which exceeds the SFW9530TM requirement of 10.5A. Both operate across -55°C to 175°C. Pin configuration and D2PAK package are identical.

Q: What are the key differences between the IRF9530SPBF and IRF5210STRLPBF?

A: The IRF5210STRLPBF provides higher current capability (38A versus 12A) and lower on-resistance (60 mOhm versus 300 mOhm at 10V). However, the IRF5210STRLPBF exhibits higher gate charge (230 nC versus 38 nC) and input capacitance (2780 pF versus 860 pF), resulting in slower switching response. The IRF5210STRLPBF maximum junction temperature is 150°C, compared to 175°C for the IRF9530SPBF. Both parts are D2PAK packaged and electrically compatible with the SFW9530TM voltage and threshold specifications.

Q: Is the D2PAK package identical across all three parts?

A: Yes. The SFW9530TM, IRF9530SPBF, and IRF5210STRLPBF all use the TO-263-3 D2PAK package with two leads plus tab. Physical dimensions and pin assignments are identical, enabling direct board-level substitution without layout modification.

Q: What is the impact of the IRF5210STRLPBF's higher gate charge on circuit performance?

A: Higher gate charge (230 nC versus 38 nC) requires longer gate drive time and increased driver current capability. This affects switching speed and power dissipation in the gate drive circuit. Applications with fast switching requirements or limited gate drive current capacity should prioritize the IRF9530SPBF, which maintains the original 38 nC gate charge specification.

Q: Are there temperature range limitations when substituting with the IRF5210STRLPBF?

A: The IRF5210STRLPBF maximum junction temperature is 150°C, which is 25°C lower than both the SFW9530TM and IRF9530SPBF. Applications operating near the upper temperature limit of the original specification require verification that the reduced maximum temperature does not compromise thermal margin.

Q: What is the REACH compliance status of these parts?

A: The SFW9530TM and IRF5210STRLPBF are REACH Unaffected. The IRF9530SPBF is REACH Affected. All three parts carry EAR99 ECCN classification. Procurement requirements for specific regulatory jurisdictions should be verified against current REACH substance restrictions.

Q: Can these parts be used interchangeably in all applications?

A: The IRF9530SPBF is suitable for direct interchangeability with the SFW9530TM across all electrical and thermal parameters. The IRF5210STRLPBF requires application-specific evaluation due to differences in gate charge, input capacitance, and maximum junction temperature. Circuit design parameters including gate drive capability, switching frequency, and thermal management must be assessed before substitution.

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