IRFIBE30G N-Channel 800V 2.1A MOSFET Equivalent & Substitute Parts

Part Overview

The IRFIBE30G is an N-Channel MOSFET rated for 800V drain-to-source voltage with 2.1A continuous drain current at 25°C, housed in a TO-220-3 through-hole package. Manufactured by Vishay Siliconix, this device is classified as obsolete product status. Due to its obsolete classification and limited availability relative to active alternatives, identification of equivalent and substitute parts is necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	800	V
Current - Continuous Drain (Id) @ 25°C	2.1	A (Tc)
Rds On (Max) @ Id, Vgs	3	Ohm @ 1.3A, 10V
Power Dissipation (Max)	35	W (Tc)
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack, Isolated Tab	—

Substitute Part Grouping Explanation

Substitution of the IRFIBE30G is determined by the following critical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): 800V minimum
Continuous Drain Current (Id): 2.1A minimum at 25°C
Rds On (Max): 3Ohm or lower at specified gate voltage
Mounting Type: Through Hole
Package Compatibility: TO-220-3 or equivalent footprint

Substitution Categories:

Direct Parametric Equivalent: Parts matching all electrical specifications and package requirements with identical or superior performance characteristics.

Functional Equivalent with Enhanced Ratings: Parts exceeding the IRFIBE30G specifications in voltage, current, or power dissipation while maintaining compatible package and mounting configuration.

Compliance-Based Substitutes: Parts meeting electrical and mechanical requirements with improved regulatory compliance status (RoHS3 Compliant vs. RoHS non-compliant).

Parameter Comparison

Parameter	IRFIBE30G	IRFIBE30GPBF	STF3N80K5	STP4NK80ZFP	STP5NK80ZFP	IXFP4N100Q
Manufacturer	Vishay Siliconix	Vishay Siliconix	STMicroelectronics	STMicroelectronics	STMicroelectronics	IXYS
Product Status	Obsolete	Active	Active	Active	Active	Not For New Designs
FET Type	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel
Vdss (V)	800	800	800	800	800	1000
Id @ 25°C (A)	2.1	2.1	2.5	3	4.3	4
Rds On (Max) @ Vgs 10V (Ohm)	3 @ 1.3A	3 @ 1.3A	3.5 @ 1A	3.5 @ 1.5A	2.4 @ 2.15A	3 @ 2A
Power Dissipation (Max) (W)	35	35	20	25	30	150
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package / Case	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

IRFIBE30GPBF (Vishay Siliconix): This part is the direct parametric equivalent to the IRFIBE30G, offering identical electrical specifications and package configuration. The primary distinction is active product status and ROHS3 compliance certification. This substitute is suitable for applications requiring exact performance matching with improved regulatory compliance. Inventory availability is 3,636 pieces.

STF3N80K5 (STMicroelectronics): This part meets the minimum voltage and current requirements with 800V Vdss and 2.5A continuous drain current. It features active product status and ROHS3 compliance. The Rds On specification of 3.5Ohm is marginally higher than the IRFIBE30G. Power dissipation is rated at 20W, which is lower than the original part. This substitute is applicable for applications with reduced thermal requirements. Inventory availability is 23,682 pieces.

STP4NK80ZFP (STMicroelectronics): This part exceeds the IRFIBE30G specifications with 3A continuous drain current at 800V Vdss and 25W power dissipation. Rds On is 3.5Ohm at 1.5A. Active product status and ROHS3 compliance are confirmed. This substitute provides enhanced current handling capability within the same voltage class. Inventory availability is 19,080 pieces.

STP5NK80ZFP (STMicroelectronics): This part provides the highest current rating among 800V substitutes with 4.3A continuous drain current and superior Rds On of 2.4Ohm at 2.15A. Power dissipation is 30W. Active product status and ROHS3 compliance are confirmed. This substitute is suitable for applications requiring improved efficiency and higher current capacity. Inventory availability is 19,428 pieces.

IXFP4N100Q (IXYS): This part exceeds the IRFIBE30G in voltage rating (1000V Vdss) and current (4A continuous drain current). Power dissipation is significantly higher at 150W. Product status is classified as "Not For New Designs," limiting its suitability for new development. ROHS3 compliance is confirmed. This substitute is applicable only for legacy system maintenance where higher voltage margin is required. Inventory availability is 1,380 pieces.

Frequently Asked Questions (FAQ)

Q: Can IRFIBE30GPBF be used as a direct replacement for IRFIBE30G?

A: Yes. IRFIBE30GPBF is a direct parametric equivalent with identical electrical specifications (800V Vdss, 2.1A Id, 3Ohm Rds On, 35W power dissipation) and package configuration (TO-220-3 Full Pack, Isolated Tab). The primary differences are active product status and ROHS3 compliance certification. No circuit modifications are required.

Q: What is the difference between TO-220-3 and TO-220FP packages?

A: Both are through-hole mounted packages with three leads in the TO-220 family. TO-220-3 Full Pack with Isolated Tab and TO-220FP are mechanically and electrically compatible for standard applications. Pin assignments and thermal characteristics remain consistent across these variants.

Q: Which substitute offers the best thermal performance?

A: IXFP4N100Q provides the highest power dissipation rating at 150W (Tc). However, this part is classified as "Not For New Designs." Among active products, STP5NK80ZFP offers 30W dissipation with the lowest Rds On (2.4Ohm), providing superior efficiency and thermal performance for 800V applications.

Q: Are all substitutes RoHS3 compliant?

A: All substitute parts listed are ROHS3 compliant except the original IRFIBE30G, which is RoHS non-compliant. IRFIBE30GPBF, STF3N80K5, STP4NK80ZFP, STP5NK80ZFP, and IXFP4N100Q all meet ROHS3 compliance requirements.

Q: Can I use a higher voltage-rated part like IXFP4N100Q (1000V) in place of IRFIBE30G (800V)?

A: Yes, from an electrical standpoint. Higher voltage-rated devices are backward compatible in circuits designed for lower voltages. However, IXFP4N100Q is classified as "Not For New Designs," making it unsuitable for new development. For new applications, select from active product status alternatives.

Q: What is the minimum current rating required for a substitute?

A: The substitute must support at least 2.1A continuous drain current at 25°C to meet the IRFIBE30G specification. All listed substitutes meet or exceed this requirement. STF3N80K5 (2.5A), STP4NK80ZFP (3A), STP5NK80ZFP (4.3A), and IXFP4N100Q (4A) all provide adequate current capacity.

Q: Does Rds On variation affect circuit performance?

A: Rds On directly impacts power dissipation and switching losses. The IRFIBE30G specifies 3Ohm maximum at 1.3A, 10V. Substitutes with higher Rds On (STF3N80K5 and STP4NK80ZFP at 3.5Ohm) will generate slightly more heat. STP5NK80ZFP with 2.4Ohm provides improved efficiency. Selection depends on thermal budget and efficiency requirements of the application.

Q: What inventory levels are available for each substitute?

A: IRFIBE30GPBF: 3,636 pieces; STF3N80K5: 23,682 pieces; STP4NK80ZFP: 19,080 pieces; STP5NK80ZFP: 19,428 pieces; IXFP4N100Q: 1,380 pieces. STMicroelectronics parts (STF3N80K5, STP4NK80ZFP, STP5NK80ZFP) offer the highest inventory availability.

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