SR510 Schottky Diode 100V 5A Equivalent & Substitute Parts

Part Overview

The SR510 is an active-status Schottky rectifier diode rated for 100V DC reverse voltage and 5A average rectified current in a through-hole DO-201AD axial package. This component is manufactured by Taiwan Semiconductor Corporation and is ROHS3 compliant. Equivalent and substitute parts may be required due to inventory availability, packaging format preferences, or specific application requirements within the electrical parameter envelope of this diode category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 5 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	100	µA @ 100 V
Mounting Type	Through Hole	-
Package / Case	DO-201AD, Axial	-
Operating Temperature - Junction	-55°C ~ 150°C	°C
Technology	Schottky	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the SR510 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100V minimum
Current - Average Rectified (Io): 5A minimum
Technology: Schottky
Mounting Type: Through Hole
Package / Case: DO-201AD or equivalent axial through-hole package

Parametric Equivalent Classification: Parts meeting all primary criteria with identical electrical specifications and the same base product number are classified as parametric equivalents. The SR510 A0G meets this classification, differing only in packaging format (Cut Tape versus Tape & Reel).

Direct Manufacturer Equivalent Classification: The SB5100 (Fairchild Semiconductor) meets the primary substitution criteria with 100V reverse voltage and 5A current rating. Minor variations in forward voltage (790 mV versus 850 mV) and reverse leakage current (500 µA versus 100 µA) remain within acceptable operating ranges for Schottky rectifier applications.

Similar Part Classification: The SB3100-T and SB5100-T (Diodes Incorporated) are classified as similar parts. The SB3100-T operates at 3A current rating, below the 5A requirement, and is suitable only for applications with reduced current demands. The SB5100-T meets the full 5A specification and represents a functional equivalent with minor parameter variations.

Parameter Comparison

Parameter	SR510	SR510 A0G	SB5100	SB3100-T	SB5100-T
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Fairchild Semiconductor	Diodes Incorporated	Diodes Incorporated
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	5 A	5 A	5 A	3 A	5 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 5 A	850 mV @ 5 A	790 mV @ 5 A	790 mV @ 3 A	800 mV @ 5 A
Speed	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns
Current - Reverse Leakage @ Vr	100 µA @ 100 V	100 µA @ 100 V	500 µA @ 100 V	500 µA @ 100 V	500 µA @ 100 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AA, DO-27, Axial	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-50°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Not specified	Cut Tape (CT)	Cut Tape (CT)

Engineering Selection Recommendations

SR510 A0G is the primary parametric equivalent, offering identical electrical specifications and ROHS3 compliance. Selection of this part is appropriate when Cut Tape packaging is preferred over Tape & Reel format. Both parts share the same base product number and manufacturer.

SB5100-T (Diodes Incorporated) is a functional equivalent meeting the full 5A current specification with ROHS3 compliance. Forward voltage is 800 mV at 5A, within acceptable tolerance of the SR510 specification. This part is suitable for applications where manufacturer diversity or specific packaging availability is required.

SB5100 (Fairchild Semiconductor) meets the 100V and 5A electrical requirements. Forward voltage of 790 mV represents improved efficiency compared to the SR510. Reverse leakage current of 500 µA is elevated relative to the SR510 specification. RoHS compliance status is not specified for this part.

SB3100-T is not recommended as a direct substitute for the SR510 due to its 3A current rating, which falls below the 5A specification. This part is suitable only for applications with reduced current requirements.

Frequently Asked Questions (FAQ)

Q: Can SR510 A0G be used as a direct replacement for SR510?

A: Yes. SR510 A0G is a parametric equivalent with identical electrical specifications, operating temperature range, and ROHS3 compliance. The only difference is packaging format: SR510 A0G is supplied in Cut Tape format while SR510 is supplied in Tape & Reel format. Both are suitable for identical circuit applications.

Q: What is the difference between SB5100 and SB5100-T?

A: SB5100 is manufactured by Fairchild Semiconductor and SB5100-T is manufactured by Diodes Incorporated. Both meet the 100V and 5A specifications. SB5100-T offers ROHS3 compliance and a wider operating temperature range (-65°C to 150°C versus -50°C to 150°C). Forward voltage specifications differ slightly: 790 mV for SB5100 and 800 mV for SB5100-T at 5A.

Q: Why is SB3100-T listed as a substitute if it only handles 3A?

A: SB3100-T is classified as a similar part rather than a direct substitute. It is suitable only for applications where the circuit current requirement does not exceed 3A. For applications requiring the full 5A rating of the SR510, SB3100-T is not appropriate.

Q: Are all substitute parts ROHS3 compliant?

A: SR510 A0G, SB3100-T, and SB5100-T are confirmed ROHS3 compliant. RoHS compliance status for SB5100 is not specified in the provided data.

Q: What is the significance of the forward voltage differences between these parts?

A: Forward voltage differences (790 mV to 850 mV at 5A) affect power dissipation in the diode. Lower forward voltage results in reduced heat generation. These variations are typical within the Schottky diode category and do not prevent functional substitution in standard rectifier applications.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes, provided the circuit design accommodates the DO-201AD or equivalent axial through-hole package format. All listed parts use compatible axial through-hole packages suitable for identical PCB footprints.

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