FSV20100V Equivalent & Substitute Parts

Part Overview

The FSV20100V is a Schottky rectifier diode manufactured by onsemi, rated for 100 V DC reverse voltage and 20 A average rectified current in a Surface Mount TO-277-3 package. This component is classified as Not For New Designs, indicating it has been superseded in onsemi's product portfolio. Organizations using this diode in existing designs or requiring replacement stock must identify functionally equivalent alternatives that maintain electrical and mechanical compatibility within the application circuit.

Substiute Parts

FSV20100V

onsemiIn Stock: 15306FSV20100V Datasheet

Current PartRFQ

SS5P10HM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 22229SS5P10HM3_A/I Datasheet

SimilarRFQ

SVT20100UB_R2_00001

Panjit International Inc.In Stock: 24732SVT20100UB_R2_00001 Datasheet

Parametric EquivalentRFQ

SVT20100U_R1_00001

Panjit International Inc.In Stock: 719SVT20100U_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSV20100V is determined by strict equivalence across the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage (Vr) rating of 100 V or greater to ensure safe operation within the original circuit design envelope.

Current Rating: Substitute parts must support an average rectified current (Io) of 20 A or greater. Parts with lower current ratings cannot be used as direct substitutes.

Forward Voltage Characteristics: Forward voltage drop (Vf) at the specified current level must be within acceptable limits to prevent excessive power dissipation and thermal stress.

Recovery Speed: Fast recovery characteristics (≤ 500ns, > 200mA) must be maintained to preserve switching performance and minimize reverse recovery losses.

Reverse Leakage Current: Leakage characteristics at rated reverse voltage must be comparable to prevent circuit performance degradation.

Package Compatibility: The TO-277 family package footprint must be maintained for mechanical and thermal compatibility with existing PCB designs.

Temperature Range: Operating junction temperature range of -55°C to 150°C must be supported.

Compliance Standards: RoHS3 compliance and MSL 1 rating must be maintained.

Based on these criteria, substitute parts are grouped as follows:

Parametric Equivalents (Full Electrical Match): SVT20100UB_R2_00001 and SVT20100U_R1_00001 provide identical electrical specifications to the FSV20100V, including 100 V rating, 20 A current capacity, and 660 mV forward voltage at 20 A.

Functional Substitute (Reduced Current Rating): SS5P10HM3_A/I maintains the 100 V voltage rating and fast recovery speed but is rated for 5 A average rectified current, making it unsuitable for direct replacement in 20 A applications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

SVT20100UB_R2_00001 and SVT20100U_R1_00001, both manufactured by Panjit International Inc., are parametric equivalents to the FSV20100V. These parts maintain identical electrical specifications across voltage rating, current capacity, forward voltage characteristics, and reverse leakage current. Both are classified as Active products, ensuring continued availability and manufacturing support. Both parts are ROHS3 compliant and carry MSL 1 rating, matching the original component's environmental and regulatory status. The primary distinction between these two Panjit alternatives is the supplier device package designation (TO-277B versus TO-277), which reflects minor packaging variations within the TO-277 family. PCB layout compatibility should be verified against the specific package footprint used in the original design.

For Current-Limited Applications:

SS5P10HM3_A/I, manufactured by Vishay General Semiconductor - Diodes Division, is not suitable as a direct replacement for the FSV20100V due to its 5 A current rating, which is insufficient for 20 A circuit requirements. This part is classified as Active and carries automotive-grade qualification (AEC-Q101), indicating suitability for automotive applications. The lower reverse leakage current (15 µA versus 80 µA) and higher forward voltage (880 mV at 5 A) reflect its design for lower-current applications. This part may be considered only in circuit designs where the actual operating current does not exceed 5 A, regardless of the original FSV20100V specification.

Compliance and Availability Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The transition from the Not For New Designs status of the FSV20100V to Active status parts (Panjit and Vishay alternatives) provides assurance of continued supply and manufacturing consistency. Inventory levels for the parametric equivalents (SVT20100UB_R2_00001: 24,695 pcs; SVT20100U_R1_00001: 679 pcs) indicate adequate availability for production requirements.

Frequently Asked Questions (FAQ)

Q: Can SVT20100UB_R2_00001 or SVT20100U_R1_00001 be used as direct replacements for FSV20100V?

A: Yes. Both Panjit parts are parametric equivalents with identical voltage ratings (100 V), current capacity (20 A), forward voltage characteristics (660 mV @ 20 A), and reverse leakage current (80 µA @ 100 V). Both maintain the same operating temperature range (-55 to 150°C) and compliance standards (ROHS3, MSL 1). The primary difference is the supplier device package designation within the TO-277 family. PCB footprint compatibility should be confirmed for the specific package variant used in the original design.

Q: Why is SS5P10HM3_A/I listed as a substitute if it has a lower current rating?

A: SS5P10HM3_A/I is listed as a functional substitute only for applications where the actual operating current does not exceed 5 A. While it maintains the 100 V voltage rating and fast recovery speed, its 5 A current rating makes it unsuitable for circuits designed to operate at the FSV20100V's full 20 A capacity. This part should not be used in applications requiring 20 A operation.

Q: What is the difference between SVT20100UB_R2_00001 and SVT20100U_R1_00001?

A: Both parts are manufactured by Panjit International Inc. and share identical electrical specifications. The difference lies in the supplier device package designation: SVT20100UB_R2_00001 uses TO-277B packaging, while SVT20100U_R1_00001 uses TO-277 packaging. These represent minor variations within the TO-277 family. The appropriate selection depends on the PCB footprint and package requirements of the original design.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FSV20100V, SVT20100UB_R2_00001, SVT20100U_R1_00001, and SS5P10HM3_A/I are all ROHS3 compliant. All parts carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage conditions.

Q: What is the significance of the "Not For New Designs" status of FSV20100V?

A: This status indicates that onsemi has discontinued active development and promotion of the FSV20100V for new circuit designs. Existing designs using this part remain supported, but new designs should utilize active alternatives. The parametric equivalents from Panjit (SVT20100UB_R2_00001 and SVT20100U_R1_00001) are classified as Active products, making them appropriate for both replacement and new design applications.

Q: Can package differences between TO-277, TO-277A, and TO-277B affect PCB compatibility?

A: Package variants within the TO-277 family share the same 3-PowerDFN footprint classification but may have minor dimensional or pin configuration differences. The specific package variant used in the original FSV20100V design must be matched to the substitute part. PCB layout files and package datasheets should be consulted to confirm mechanical and thermal compatibility before component substitution.

Q: What is the difference in reverse leakage current between FSV20100V and SS5P10HM3_A/I?

A: FSV20100V exhibits 80 µA reverse leakage current at 100 V, while SS5P10HM3_A/I exhibits 15 µA at the same voltage. The lower leakage in the Vishay part reflects its design for lower-current applications. In circuits sensitive to leakage current, this difference should be evaluated against circuit performance requirements.

Q: Are the Panjit substitute parts suitable for automotive applications?

A: SVT20100UB_R2_00001 and SVT20100U_R1_00001 are classified as Active products but do not carry automotive qualification markings in the provided specifications. SS5P10HM3_A/I carries AEC-Q101 automotive qualification. For automotive applications, compliance requirements should be verified against specific application standards and customer specifications.