IRFR5305CPBF P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRFR5305CPBF is a P-Channel MOSFET manufactured by Infineon Technologies, rated for 55V drain-to-source voltage with 31A continuous drain current at 25°C. This device is packaged in TO-252AA (DPAK) surface mount configuration and is part of the HEXFET® series. The part is currently listed as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility with the TO-252AA package footprint and satisfy the electrical performance requirements of the original design.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	31	A (Tc)
On-State Resistance (Rds On) @ 16A, 10V	65	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Power Dissipation (Max)	110	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252AA (DPAK)	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the IRFR5305CPBF is determined by the following criteria:

Primary Electrical Requirements:

Drain-to-Source Voltage (Vdss) must equal or exceed 55V
Continuous Drain Current (Id) must equal or exceed 31A at 25°C
On-State Resistance (Rds On) must not exceed 65mOhm at specified gate voltage
Gate Threshold Voltage (Vgs(th)) must be compatible with 4V specification
Power Dissipation capability must support 110W (Tc) minimum

Package and Mechanical Requirements:

Surface mount TO-252AA (DPAK) package with identical pin configuration
Moisture Sensitivity Level (MSL) of 1 (Unlimited)
Vgs (Max) rating of ±20V

Regulatory and Compliance Requirements:

REACH compliance status
ECCN classification EAR99
HTSUS code 8541.29.0095

The substitute parts listed below satisfy these criteria with the following considerations: IRFR5505TRPBF provides active product status with reduced current rating (18A), while SUD19P06-60-E3 offers higher voltage rating (60V) with comparable current performance.

Parameter Comparison

Parameter	IRFR5305CPBF (Main)	IRFR5505TRPBF (Substitute)	SUD19P06-60-E3 (Substitute)
Manufacturer	Infineon Technologies	Infineon Technologies	Vishay Siliconix
FET Type	P-Channel	P-Channel	P-Channel
Vdss (V)	55	55	60
Id @ 25°C (A)	31	18	18.3
Rds On (mOhm)	65 @ 16A, 10V	110 @ 9.6A, 10V	60 @ 10A, 10V
Vgs(th) (V)	4 @ 250µA	4 @ 250µA	3 @ 250µA
Gate Charge Qg (nC)	63 @ 10V	32 @ 10V	40 @ 10V
Ciss (pF)	1200 @ 25V	650 @ 25V	1710 @ 25V
Power Dissipation (W)	110 (Tc)	57 (Tc)	38.5 (Tc)
Operating Temperature (°C)	-55 to 175	-55 to 150	-55 to 150
Package	TO-252AA (DPAK)	TO-252AA (DPAK)	TO-252AA
Product Status	Obsolete	Active	Active
Vgs (Max) (V)	±20	±20	±20
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Affected
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

IRFR5505TRPBF Selection Criteria:

The IRFR5505TRPBF is an active product from Infineon Technologies with identical voltage rating (55V) and package configuration (TO-252AA DPAK). This substitute is suitable for applications where the continuous drain current requirement does not exceed 18A. The device maintains REACH Unaffected status and RoHS3 compliance. The reduced gate charge (32nC versus 63nC) and lower input capacitance (650pF versus 1200pF) result in faster switching characteristics. Power dissipation capability is reduced to 57W (Tc), which must be evaluated against thermal design requirements. Operating temperature range is limited to -55°C to 150°C (versus 175°C maximum for the original part).

SUD19P06-60-E3 Selection Criteria:

The SUD19P06-60-E3 is an active product from Vishay Siliconix with elevated voltage rating (60V) and comparable current rating (18.3A). This substitute provides superior on-state resistance performance (60mOhm versus 65mOhm at the original specification point). The device is packaged in TO-252AA configuration with identical pin assignment. RoHS3 compliance is confirmed. REACH Affected status indicates regulatory documentation requirements. Operating temperature range is -55°C to 150°C. The higher input capacitance (1710pF) and gate charge (40nC) must be considered in switching circuit design.

Substitution Feasibility:

Both substitute parts are suitable for applications where continuous drain current does not exceed 18A. Applications requiring the full 31A rating of the original IRFR5305CPBF cannot be satisfied by these substitutes. Selection between the two substitutes depends on specific circuit requirements: IRFR5505TRPBF for Infineon ecosystem preference and faster switching, or SUD19P06-60-E3 for superior on-state resistance and voltage margin.

Frequently Asked Questions (FAQ)

Q: Can IRFR5505TRPBF directly replace IRFR5305CPBF in all applications?

A: Direct replacement is limited by current rating. IRFR5505TRPBF is rated for 18A continuous drain current versus 31A for the original part. Substitution is valid only for applications where actual drain current does not exceed 18A. Thermal design must account for reduced power dissipation capability (57W versus 110W).

Q: What is the primary difference between the two substitute parts?

A: IRFR5505TRPBF maintains identical voltage rating (55V) and is from the same manufacturer (Infineon). SUD19P06-60-E3 offers higher voltage rating (60V) and superior on-state resistance (60mOhm versus 110mOhm), but introduces REACH Affected regulatory status. Both are limited to 18A continuous current.

Q: Are the packages identical for all three parts?

A: All three parts use TO-252AA (DPAK) surface mount package with identical pin configuration and footprint. No PCB layout modifications are required for substitution.

Q: What is the impact of different gate charge specifications?

A: IRFR5505TRPBF has lower gate charge (32nC versus 63nC), resulting in faster switching response and reduced gate drive power requirements. SUD19P06-60-E3 has intermediate gate charge (40nC). Gate drive circuit design may require adjustment based on switching frequency and driver capability.

Q: How do operating temperature ranges affect substitution?

A: IRFR5305CPBF operates to 175°C (TJ), while both substitutes are limited to 150°C (TJ). Applications requiring operation above 150°C cannot use these substitutes. Thermal management design must ensure junction temperature remains within the 150°C limit.

Q: What compliance considerations apply to each substitute?

A: IRFR5505TRPBF maintains REACH Unaffected status identical to the original part. SUD19P06-60-E3 is REACH Affected, requiring compliance documentation review. Both parts are RoHS3 compliant and carry EAR99 ECCN classification.

Q: Can these substitutes be used in high-frequency switching applications?

A: IRFR5505TRPBF is preferred for high-frequency applications due to lower gate charge and input capacitance. SUD19P06-60-E3 has higher input capacitance (1710pF), which may increase switching losses at high frequencies. Circuit simulation is necessary to evaluate switching performance at target operating frequency.

Q: What inventory status should influence substitution decisions?

A: IRFR5505TRPBF has significantly higher inventory availability (65,100 pcs) compared to SUD19P06-60-E3 (31,305 pcs). Supply chain continuity favors IRFR5505TRPBF for long-term production requirements.

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