Equivalent & Substitute Parts for SS22-E3/5BT

Part Overview

The SS22-E3/5BT is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 20 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified to address inventory availability, packaging format preferences, and design flexibility while maintaining electrical and mechanical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	400	µA @ 20 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SS22-E3/5BT are grouped based on electrical parameter compatibility and mechanical interchangeability. The primary substitution criteria are:

Parametric Equivalents maintain identical electrical specifications: 20 V reverse voltage, 2 A average rectified current, 500 mV forward voltage drop at 2 A, and fast recovery characteristics. These parts differ only in packaging format (Cut Tape versus Tape & Reel) or are from the same manufacturer base product line.

Direct Manufacturer Equivalents from alternative manufacturers (STMicroelectronics, Diodes Incorporated, Panjit International Inc., onsemi, Micro Commercial Co) meet the core electrical requirements of 20 V / 2 A operation with compatible DO-214AA SMB packaging. Minor variations in forward voltage drop (430–500 mV @ rated current) and reverse leakage current (90–500 µA @ rated voltage) remain within acceptable operating ranges for this device category.

Higher Current Rated Alternatives (SK32B-LTP at 3 A, SK42BL-TP at 4 A) provide electrical substitution for applications where higher current capacity is required, while maintaining 20 V reverse voltage rating and DO-214AA package compatibility.

Higher Voltage Rated Alternative (STPS2L25U at 25 V, STPS2L40U at 40 V) provides substitution for applications requiring elevated reverse voltage ratings while maintaining 2 A current capacity and SMB package form factor.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Package	Temp Range [°C]	Product Status
SS22-E3/5BT	Vishay	20	2	500 @ 2A	400 @ 20V	DO-214AA, SMB	-65 to 125	Active
SS22-E3/52T	Vishay	20	2	500 @ 2A	400 @ 20V	DO-214AA, SMB	-65 to 125	Active
STPS2L25U	STMicroelectronics	25	2	450 @ 2A	90 @ 25V	DO-214AA, SMB	—	Active
B220-13-F	Diodes Incorporated	20	2	500 @ 2A	500 @ 20V	DO-214AA, SMB	-65 to 150	Active
SK22_R1_00001	Panjit International Inc.	20	2	500 @ 2A	90 @ 20V	DO-214AA, SMB	-55 to 150	Active
SK32B-LTP	Micro Commercial Co	20	3	500 @ 3A	500 @ 20V	DO-214AA, SMB	-55 to 150	Not For New Designs
SK42BL-TP	Micro Commercial Co	20	4	450 @ 4A	500 @ 20V	DO-214AA, SMB	-55 to 150	Not For New Designs
SS22T3G	onsemi	20	2	500 @ 2A	400 @ 40V	DO-214AA, SMB	-55 to 150	Last Time Buy
STPS2L40U	STMicroelectronics	40	2	430 @ 2A	220 @ 40V	DO-214AA, SMB	—	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical and Mechanical Specifications):

SS22-E3/52T from Vishay is a parametric equivalent offering identical 20 V / 2 A ratings with the same forward voltage and reverse leakage characteristics. Selection between SS22-E3/5BT and SS22-E3/52T depends on packaging format availability (Cut Tape versus Tape & Reel).

For Active Product Status Priority:

B220-13-F (Diodes Incorporated), SK22_R1_00001 (Panjit International Inc.), STPS2L25U (STMicroelectronics), and STPS2L40U (STMicroelectronics) maintain Active product status. These parts are suitable for new designs and long-term production applications.

For Extended Temperature Range:

B220-13-F, SK22_R1_00001, SK32B-LTP, SK42BL-TP, and SS22T3G provide operating temperature ranges extending to 150°C maximum junction temperature, compared to the SS22-E3/5BT maximum of 125°C.

For Higher Current Capacity:

SK32B-LTP (3 A) and SK42BL-TP (4 A) provide increased current handling while maintaining 20 V reverse voltage rating and DO-214AA package compatibility. These parts are designated "Not For New Designs" and should be used only when higher current capacity is required and no Active alternative exists.

For Higher Voltage Rating:

STPS2L25U (25 V) and STPS2L40U (40 V) provide elevated reverse voltage ratings suitable for applications requiring voltage margin above 20 V, while maintaining 2 A current capacity and SMB package form factor.

Avoid for New Designs:

SK32B-LTP, SK42BL-TP, and SS22T3G carry product status designations ("Not For New Designs" or "Last Time Buy") and should not be selected for new product development unless no suitable Active alternative exists.

Frequently Asked Questions (FAQ)

Q: Can SS22-E3/52T be used as a direct replacement for SS22-E3/5BT?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (20 V, 2 A, 500 mV forward voltage, 400 µA reverse leakage). The difference is packaging format: SS22-E3/5BT is supplied in Cut Tape & Digi-Reel format, while SS22-E3/52T is supplied in Cut Tape format. Electrical and mechanical compatibility is complete.

Q: What is the difference between the Vishay SS22 series parts and the onsemi SS22T3G?

A: Both are 20 V / 2 A Schottky diodes in DO-214AA SMB packages with 500 mV forward voltage drop. The onsemi SS22T3G is designated "Last Time Buy" product status, indicating limited future availability. For new designs, Vishay SS22-E3/5BT or SS22-E3/52T are preferred due to Active status.

Q: Can STPS2L25U or STPS2L40U be used in place of SS22-E3/5BT?

A: STPS2L25U and STPS2L40U are electrical substitutes with higher reverse voltage ratings (25 V and 40 V respectively) and lower forward voltage drops (450 mV and 430 mV). They are compatible with DO-214AA SMB package footprints. Use these parts when the application requires voltage margin above 20 V or when lower forward voltage drop is beneficial for thermal performance.

Q: Why are SK32B-LTP and SK42BL-TP marked "Not For New Designs"?

A: These parts carry obsolescence designations indicating limited future availability and manufacturer support. SK32B-LTP provides 3 A capacity and SK42BL-TP provides 4 A capacity at 20 V, but should only be selected if higher current capacity is required and no Active alternative meets the application requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the environmental and handling requirements of the SS22-E3/5BT.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging is supplied in individual strips suitable for manual handling and smaller volume applications. Tape & Reel packaging is supplied on continuous reels suitable for automated assembly equipment and higher volume production. Electrical and mechanical specifications are identical; selection depends on assembly process requirements.

Q: Can B220-13-F from Diodes Incorporated be used as a direct replacement?

A: Yes. B220-13-F meets the 20 V / 2 A electrical specifications with 500 mV forward voltage and DO-214AA SMB package compatibility. It provides extended temperature range (-65°C to 150°C) and Active product status. Reverse leakage is 500 µA at 20 V, compared to 400 µA for the SS22-E3/5BT, which remains within acceptable operating parameters.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Reverse voltage rating (Vr) equal to or greater than the original part, (2) Average rectified current (Io) equal to or greater than the original part, (3) Forward voltage drop (Vf) within acceptable range for the application, (4) DO-214AA SMB package form factor, (5) Fast recovery speed characteristic (≤ 500ns), and (6) Operating temperature range suitable for the application environment.

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