IRFP340 Equivalent & Substitute Parts

Part Overview

The IRFP340 is an N-Channel MOSFET rated for 400V drain-to-source voltage with 11A continuous drain current and 150W power dissipation in a Through Hole TO-247AC package. This device is classified as Obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement continuity. The IRFP340PBF provides a direct parametric equivalent with identical electrical specifications and Active product status.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	400	V
Current - Continuous Drain (Id) @ 25°C	11	A (Tc)
Rds On (Max) @ Id, Vgs	550	mOhm @ 6.6A, 10V
Vgs(th) (Max) @ Id	4	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	62	nC @ 10V
Vgs (Max)	±20	V
Input Capacitance (Ciss) (Max) @ Vds	1400	pF @ 25V
Power Dissipation (Max)	150	W (Tc)
Operating Temperature	-55 to 150	°C (TJ)
Package / Case	TO-247-3	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the IRFP340 with the IRFP340PBF is based on strict electrical and mechanical parameter equivalence. Both devices share identical specifications across all critical performance parameters:

Key Parameters Determining Substitutability:

Drain to Source Voltage (Vdss): 400V (identical)
Continuous Drain Current (Id): 11A @ 25°C (identical)
On-State Resistance (Rds On): 550mOhm @ 6.6A, 10V (identical)
Gate Threshold Voltage (Vgs(th)): 4V @ 250µA (identical)
Gate Charge (Qg): 62nC @ 10V (identical)
Input Capacitance (Ciss): 1400pF @ 25V (identical)
Power Dissipation: 150W (Tc) (identical)
Operating Temperature Range: -55°C to 150°C (identical)
Package: TO-247-3 Through Hole (identical)

The IRFP340PBF maintains full electrical and mechanical compatibility with the IRFP340, with the primary distinction being Active product status and RoHS3 compliance.

Parameter Comparison

Parameter	IRFP340	IRFP340PBF	Match
Manufacturer	Vishay Siliconix	Vishay Siliconix	✓
FET Type	N-Channel	N-Channel	✓
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	✓
Drain to Source Voltage (Vdss)	400V	400V	✓
Current - Continuous Drain (Id) @ 25°C	11A (Tc)	11A (Tc)	✓
Drive Voltage (Max Rds On)	10V	10V	✓
Rds On (Max) @ Id, Vgs	550mOhm @ 6.6A, 10V	550mOhm @ 6.6A, 10V	✓
Vgs(th) (Max) @ Id	4V @ 250µA	4V @ 250µA	✓
Gate Charge (Qg) (Max) @ Vgs	62nC @ 10V	62nC @ 10V	✓
Vgs (Max)	±20V	±20V	✓
Input Capacitance (Ciss) (Max) @ Vds	1400pF @ 25V	1400pF @ 25V	✓
Power Dissipation (Max)	150W (Tc)	150W (Tc)	✓
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	✓
Package / Case	TO-247-3	TO-247-3	✓
Mounting Type	Through Hole	Through Hole	✓
Product Status	Obsolete	Active	—
RoHS Status	RoHS non-compliant	RoHS3 Compliant	—

Engineering Selection Recommendations

The IRFP340PBF is the direct substitute for the IRFP340 based on complete electrical and mechanical parameter equivalence. Selection of the IRFP340PBF is supported by the following factors:

Product Status: The IRFP340 is classified as Obsolete, while the IRFP340PBF maintains Active status, ensuring long-term availability and manufacturing continuity.

Regulatory Compliance: The IRFP340PBF is RoHS3 Compliant, whereas the IRFP340 is RoHS non-compliant. For applications subject to RoHS directives or customer compliance requirements, the IRFP340PBF is the appropriate selection.

Electrical Equivalence: All electrical parameters are identical between the two devices, including voltage rating, current capacity, on-state resistance, gate characteristics, and thermal performance. No circuit redesign or performance adjustment is required.

Mechanical Compatibility: Both devices utilize the TO-247-3 Through Hole package, ensuring direct pin-compatible board-level substitution without layout modifications.

Certification Status: Both devices maintain identical REACH Unaffected and EAR99 ECCN classifications, with no regulatory differentiation in export or supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can the IRFP340PBF be used as a direct replacement for the IRFP340 in existing designs?

A: Yes. The IRFP340PBF is electrically and mechanically identical to the IRFP340 across all specified parameters. Pin configuration, package footprint, and electrical performance are fully compatible. No circuit modifications are required.

Q: What is the primary reason to transition from IRFP340 to IRFP340PBF?

A: The IRFP340 is Obsolete, while the IRFP340PBF is Active. This ensures continued component availability, manufacturing support, and compliance with current regulatory standards including RoHS3.

Q: Are there any differences in thermal performance between the IRFP340 and IRFP340PBF?

A: No. Both devices specify identical maximum power dissipation of 150W (Tc) and operating temperature range of -55°C to 150°C (TJ).

Q: Does the IRFP340PBF require different gate drive circuitry?

A: No. Gate threshold voltage, gate charge, and maximum gate voltage specifications are identical. Existing gate drive designs require no modification.

Q: What is the difference between the IRFP340 and IRFP340PBF packaging?

A: Both devices use the TO-247-3 Through Hole package. The IRFP340PBF is supplied in Tube packaging, while the IRFP340 packaging specification is not detailed. This is a supply format difference only and does not affect electrical or mechanical compatibility.

Q: Is the IRFP340PBF suitable for high-voltage switching applications?

A: Yes. The 400V Vdss rating and 11A continuous drain current support high-voltage switching applications within the specified electrical parameters. Operating temperature range of -55°C to 150°C accommodates industrial and demanding thermal environments.

Q: Are there any compliance concerns when substituting the IRFP340 with IRFP340PBF?

A: The IRFP340PBF provides improved compliance status with RoHS3 certification, whereas the IRFP340 is RoHS non-compliant. For applications requiring RoHS compliance, the IRFP340PBF is the appropriate selection. Both devices maintain identical REACH Unaffected status.

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