IRF630FP N-Channel MOSFET 200V 9A Equivalent & Substitute Parts

Part Overview

The IRF630FP is an N-Channel MOSFET manufactured by STMicroelectronics, rated for 200V drain-to-source voltage and 9A continuous drain current in a Through Hole TO-220FP package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

Substitute parts are identified based on matching or exceeding critical electrical parameters including drain-to-source voltage rating, continuous drain current capability, on-resistance characteristics, and compatible through-hole packaging formats.

Substiute Parts

IRF630FP

STMicroelectronicsIn Stock: 2656IRF630FP Datasheet

Current PartRFQ

IRF630

Harris CorporationIn Stock: 9777IRF630 Datasheet

SimilarRFQ

RCX100N25

Rohm SemiconductorIn Stock: 1623RCX100N25 Datasheet

DirectRFQ

FQPF630

Fairchild SemiconductorIn Stock: 2969FQPF630 Datasheet

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IRFI630GPBF

Vishay SiliconixIn Stock: 71096IRFI630GPBF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRF630FP are classified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): Equal to or greater than 200V
• Continuous Drain Current (Id): Equal to or greater than 9A at 25°C
• On-Resistance (Rds On): Maximum 400 mOhm or lower at specified gate voltage
• Gate Threshold Voltage (Vgs(th)): 4V or lower at 250µA
• Mounting Type: Through Hole configuration
• Package Format: TO-220 series compatible footprint

Substitution Categories:

Direct Equivalents maintain all critical parameters within the original specification envelope. These parts share identical voltage and current ratings with comparable on-resistance and thermal characteristics.

Functional Equivalents exceed one or more critical parameters while maintaining compatibility with the original application circuit. These parts provide enhanced performance headroom in voltage rating, current capacity, or thermal dissipation.

Partial Equivalents match primary electrical parameters but exhibit variations in secondary characteristics such as gate charge, input capacitance, or operating temperature range. These parts require circuit-level verification for specific applications.

Parameter Comparison

Engineering Selection Recommendations

IRF630 (Harris Corporation)

The IRF630 from Harris Corporation is a direct electrical equivalent to the IRF630FP, matching the 200V voltage rating and 9A continuous drain current specification. On-resistance characteristics are identical at 400 mOhm. Gate charge and threshold voltage parameters align with the original device. However, this part is classified as obsolete and carries RoHS non-compliance status, limiting its suitability for new designs requiring regulatory compliance. This part is suitable only for legacy system maintenance where RoHS compliance is not mandated.

RCX100N25 (Rohm Semiconductor)

The RCX100N25 is a functional equivalent offering enhanced electrical performance with a 250V drain-to-source voltage rating and 10A continuous drain current, exceeding the IRF630FP specifications. Power dissipation capability is increased to 40W. This part maintains Through Hole TO-220FM packaging compatible with standard TO-220 footprints. The RCX100N25 is classified as active product status with ROHS3 compliance, making it suitable for new designs and ongoing procurement. The elevated voltage and current ratings provide design margin for applications requiring higher performance headroom.

FQPF630 (Fairchild Semiconductor)

The FQPF630 maintains the 200V voltage rating and 400 mOhm on-resistance specification of the IRF630FP. However, continuous drain current is reduced to 6.3A, below the original 9A rating. Gate charge is significantly lower at 25 nC compared to 45 nC, and input capacitance is reduced to 550 pF. This part is classified as active product status. The reduced current rating restricts this part to applications with lower current demands or as a partial substitute where thermal and switching characteristics are prioritized over current capacity.

IRFI630GPBF (Vishay Siliconix)

The IRFI630GPBF maintains the 200V voltage rating and 400 mOhm on-resistance of the IRF630FP. Continuous drain current is rated at 5.9A, below the original 9A specification. This part is classified as active product status with ROHS3 compliance and REACH affected status. The isolated tab feature in the TO-220-3 Full Pack configuration provides enhanced thermal isolation. This part is suitable for applications where current requirements do not exceed 5.9A and where active product availability and compliance certifications are required.

Frequently Asked Questions (FAQ)

Q: Can the IRF630 (Harris) be used as a direct replacement for the IRF630FP?

A: The IRF630 from Harris Corporation matches all critical electrical parameters including 200V voltage rating, 9A continuous drain current, and 400 mOhm on-resistance. However, the IRF630 is classified as obsolete and RoHS non-compliant. Use is limited to legacy system maintenance where regulatory compliance is not required. For new designs, active product alternatives are recommended.

Q: Is the RCX100N25 a suitable substitute for higher-current applications?

A: The RCX100N25 exceeds the IRF630FP specifications with 250V voltage rating and 10A continuous drain current, compared to the original 200V and 9A ratings. This part is active product status with ROHS3 compliance. The enhanced ratings provide design margin for applications requiring higher performance. Verify circuit compatibility with the elevated voltage rating before implementation.

Q: What is the difference between the FQPF630 and IRFI630GPBF?

A: Both parts maintain the 200V voltage rating and 400 mOhm on-resistance of the IRF630FP. The FQPF630 is rated for 6.3A continuous drain current with 25 nC gate charge. The IRFI630GPBF is rated for 5.9A continuous drain current with 43 nC gate charge and features an isolated tab in the TO-220-3 package. The FQPF630 offers lower gate charge for faster switching, while the IRFI630GPBF provides thermal isolation benefits.

Q: Are all substitute parts compatible with the original TO-220 footprint?

A: All substitute parts listed use Through Hole mounting in TO-220 series packages (TO-220FP, TO-220AB, TO-220FM, TO-220F-3, TO-220-3). These packages share compatible pin configurations and footprints. Verify specific package variant (Full Pack vs. Isolated Tab) compatibility with your PCB layout before component selection.

Q: Which substitute part is recommended for new product designs?

A: For new designs requiring active product status and regulatory compliance, the RCX100N25 (Rohm Semiconductor) is recommended. This part offers ROHS3 compliance, active product status, enhanced voltage and current ratings, and improved thermal dissipation at 40W. The IRFI630GPBF (Vishay Siliconix) is an alternative active product option with ROHS3 compliance and isolated tab thermal benefits, suitable for applications with current requirements up to 5.9A.

Q: What is the impact of reduced continuous drain current in substitute parts?

A: Substitute parts with reduced continuous drain current ratings (FQPF630 at 6.3A, IRFI630GPBF at 5.9A) compared to the original 9A rating require circuit-level verification. Confirm that maximum circuit current does not exceed the substitute part rating. Reduced current capacity may necessitate parallel device configurations or circuit redesign for applications requiring the full 9A capability.

Q: How do gate charge differences affect circuit performance?

A: Gate charge variations impact switching speed and driver circuit requirements. The FQPF630 exhibits lower gate charge at 25 nC compared to the IRF630FP at 45 nC, enabling faster switching transitions and reduced driver power dissipation. Higher gate charge in other substitutes (43 nC) requires proportionally higher driver current for equivalent switching speed. Verify driver circuit capability before selecting parts with significantly different gate charge specifications.

Q: Are there RoHS compliance considerations for substitute selection?

A: The IRF630FP and recommended active substitutes (RCX100N25, IRFI630GPBF) are ROHS3 compliant. The IRF630 from Harris is RoHS non-compliant and unsuitable for applications requiring regulatory compliance. The FQPF630 RoHS status is not specified in available data. For designs subject to RoHS regulations, select only parts with confirmed ROHS3 compliance certification.