SB5100 Equivalent & Substitute Parts

Part Overview

The SB5100 is a Schottky rectifier diode rated for 100 V DC reverse voltage and 5 A average rectified current in a through-hole DO-201AD axial package. Manufactured by onsemi, this component is classified as obsolete product status. Due to its obsolete classification, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, production continuity, and component sourcing in new applications.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the SB5100 are grouped into two categories based on electrical and mechanical compatibility:

Direct Substitutes (Same Current Rating - 5A): Parts that maintain the 5 A average rectified current specification with identical 100 V reverse voltage rating and DO-201AD package. These include SB5100-T, SB5H100-E3/54, SR5010-AP, SR5010-BP, and SR5010-TP. These parts are interchangeable in applications where the 5 A current specification is a design requirement.

Higher Current Capacity Substitutes (12A Rating): Parts that exceed the original 5 A specification with 12 A average rectified current, including SB12100-AP, SB12100-BP, and SB12100-TP. These maintain the 100 V reverse voltage and DO-201AD package but provide increased current handling capability. These are suitable for applications where higher current capacity is acceptable or beneficial.

Parametric Equivalents: Parts that meet the core electrical specifications (100 V, 5 A, Schottky technology, fast recovery) but may differ in package designation or minor parameter variations, including SB5100 (Fairchild Semiconductor) and SR510 (Taiwan Semiconductor Corporation).

Substitution eligibility is determined by:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 5 A minimum
Package / Case: DO-201AD or compatible axial through-hole package
Technology: Schottky
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Through Hole

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io (A)	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Product Status
SB5100	onsemi	100 V	5	850 mV @ 5 A	500 µA @ 100 V	DO-201AD	Obsolete
SB5100-T	Diodes Incorporated	100 V	5	800 mV @ 5 A	500 µA @ 100 V	DO-201AD	Active
SB5H100-E3/54	Vishay General Semiconductor - Diodes Division	100 V	5	800 mV @ 5 A	200 µA @ 100 V	DO-201AD	Active
SR5010-AP	Micro Commercial Co	100 V	5	850 mV @ 5 A	1 mA @ 100 V	DO-201AD	Active
SR5010-BP	Micro Commercial Co	100 V	5	850 mV @ 5 A	1 mA @ 100 V	DO-201AD	Active
SR5010-TP	Micro Commercial Co	100 V	5	850 mV @ 5 A	1 mA @ 100 V	DO-201AD	Active
SB12100-AP	Micro Commercial Co	100 V	12	850 mV @ 12 A	500 µA @ 100 V	DO-201AD	Active
SB12100-BP	Micro Commercial Co	100 V	12	850 mV @ 12 A	500 µA @ 100 V	DO-201AD	Active
SB12100-TP	Micro Commercial Co	100 V	12	850 mV @ 12 A	500 µA @ 100 V	DO-201AD	Active
SB5100	Fairchild Semiconductor	100 V	5	790 mV @ 5 A	500 µA @ 100 V	DO-201AA / DO-27	Active
SR510	Taiwan Semiconductor Corporation	100 V	5	850 mV @ 5 A	100 µA @ 100 V	DO-201AD	Active

Engineering Selection Recommendations

For Direct Replacement (Same Current Rating):

SB5100-T (Diodes Incorporated) and SB5H100-E3/54 (Vishay) are recommended as primary direct substitutes. Both maintain the 5 A current specification, 100 V reverse voltage rating, and DO-201AD package. Both manufacturers maintain active product status and ROHS3 compliance. SB5100-T is available in cut tape packaging with 3773 units in stock. SB5H100-E3/54 is available in cut tape packaging with 28900 units in stock and features lower reverse leakage current (200 µA vs. 500 µA).

SR5010-TP (Micro Commercial Co) is available in cut tape packaging with 2302 units in stock and maintains ROHS3 compliance. SR5010-AP and SR5010-BP are available in bulk packaging with 732 and 1165 units in stock respectively. All SR5010 variants feature active product status but exhibit higher reverse leakage current (1 mA @ 100 V).

SR510 (Taiwan Semiconductor Corporation) is a parametric equivalent available in tape and reel packaging with 3972 units in stock, ROHS3 compliance, and active product status. This part features lower reverse leakage current (100 µA @ 100 V) and is suitable for applications where leakage performance is critical.

For Higher Current Applications:

SB12100-AP, SB12100-BP, and SB12100-TP (Micro Commercial Co) provide 12 A average rectified current while maintaining 100 V reverse voltage and DO-201AD package compatibility. All three variants maintain active product status. SB12100-TP is available in bulk packaging with 718 units in stock. SB12100-AP is available in bulk packaging with 637 units in stock. SB12100-BP is available in bulk packaging with 905 units in stock. These parts are suitable for applications where current capacity exceeding 5 A is required or where design margin is desired.

Compliance Considerations:

All recommended active substitutes maintain REACH Unaffected status and EAR99 ECCN classification. SB5100-T, SB5H100-E3/54, SR5010-TP, and SR510 are ROHS3 compliant. Moisture sensitivity level (MSL) is 1 (Unlimited) for all active substitutes where specified.

Frequently Asked Questions (FAQ)

Q: Can SB12100 series parts (12A rating) be used as direct replacements for the SB5100 (5A rating)?

A: Yes. The SB12100 series maintains the 100 V reverse voltage specification and DO-201AD package. The higher 12 A current rating is a superset of the 5 A requirement, making these parts electrically compatible. Applications designed for 5 A operation will function correctly with 12 A rated parts. However, verify that circuit board thermal design and component placement accommodate the potentially different thermal characteristics of higher-rated devices.

Q: What is the difference between SB5100-T, SR5010-TP, and SB5H100-E3/54?

A: All three maintain 100 V reverse voltage, 5 A current rating, and DO-201AD package. SB5100-T (Diodes Incorporated) features 800 mV forward voltage and 500 µA reverse leakage. SR5010-TP (Micro Commercial Co) features 850 mV forward voltage and 1 mA reverse leakage. SB5H100-E3/54 (Vishay) features 800 mV forward voltage and 200 µA reverse leakage. Selection depends on forward voltage drop and reverse leakage requirements for the specific application.

Q: Are there packaging differences between substitute parts?

A: Yes. SB5100-T and SB5H100-E3/54 are available in cut tape (CT) packaging. SR5010-TP is available in cut tape (CT) packaging. SR5010-AP and SR5010-BP are available in bulk packaging. SR510 is available in tape and reel (TR) packaging. SB12100 series parts are available in bulk packaging. Verify packaging compatibility with assembly equipment and procurement requirements before selection.

Q: What is the significance of the reverse leakage current differences?

A: Reverse leakage current affects power dissipation and circuit performance in high-impedance applications. The SB5100 original part specifies 500 µA @ 100 V. SB5H100-E3/54 features 200 µA (lower leakage), SR510 features 100 µA (lowest leakage), while SR5010 variants feature 1 mA (higher leakage). For applications sensitive to leakage current, select parts with specifications matching or exceeding the original design requirement.

Q: Is the onsemi SB5100 still available?

A: The onsemi SB5100 is classified as obsolete product status. Active substitutes from Diodes Incorporated, Vishay, Micro Commercial Co, and Taiwan Semiconductor Corporation are available for new designs and production continuity.

Q: Can the Fairchild Semiconductor SB5100 be used as a substitute?

A: The Fairchild Semiconductor SB5100 is a parametric equivalent with 100 V reverse voltage and 5 A current rating. However, it is available in DO-201AA or DO-27 package designation rather than DO-201AD. Verify mechanical compatibility with circuit board layout and component placement before selection. This part maintains active product status.

Q: What compliance certifications should I verify for my application?

A: All recommended active substitutes maintain REACH Unaffected status and EAR99 ECCN classification. For RoHS compliance, verify that SB5100-T, SB5H100-E3/54, SR5010-TP, and SR510 meet ROHS3 requirements for your specific application. Moisture sensitivity level (MSL) is 1 (Unlimited) for all active substitutes where specified, indicating no special moisture handling requirements.

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