SS22-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS22-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 20V DC reverse voltage and 2A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as Obsolete, necessitating identification of equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain electrical performance within the specified parameters while accommodating current availability and product lifecycle status.

Substiute Parts

SS22-TP

Micro Commercial CoIn Stock: 2535SS22-TP Datasheet

Current PartRFQ

SS22-LTP

Micro Commercial CoIn Stock: 6197SS22-LTP Datasheet

DirectRFQ

B220A-13-F

Diodes IncorporatedIn Stock: 21859B220A-13-F Datasheet

SimilarRFQ

SS12 R3G

Taiwan Semiconductor CorporationIn Stock: 1942SS12 R3G Datasheet

SimilarRFQ

SK22A

Good-Ark SemiconductorIn Stock: 7879SK22A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS22-TP is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 20V minimum
• Current - Average Rectified (Io): 2A minimum
• Package / Case: DO-214AC (SMA) surface mount
• Technology: Schottky rectifier
• Mounting Type: Surface Mount

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) (Max) @ If: ≤ 550 mV @ 2A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: ≤ 500 µA @ 20V
• Capacitance @ Vr, F: ≤ 230 pF @ 4V, 1MHz
• Operating Temperature - Junction: -55°C to 125°C minimum range
• RoHS Status: ROHS3 Compliant

Substitute parts are classified into three categories: Direct Manufacturer (identical electrical and packaging specifications), Similar Manufacturer (equivalent electrical performance with minor parameter variations), and Parametric Equivalent (full electrical equivalence with enhanced specifications or certifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Manufacturer Substitute: SS22-LTP

The SS22-LTP is a direct electrical equivalent manufactured by Micro Commercial Co with identical specifications to the SS22-TP across all critical parameters. This part maintains the same 20V reverse voltage rating, 2A current capacity, 550 mV forward voltage drop, and operating temperature range. The SS22-LTP is classified as "Not For New Designs" but remains suitable for replacement and maintenance applications. Packaging is provided in Tape & Reel (TR) format with 6118 units in stock, providing superior availability compared to the obsolete SS22-TP.

Similar Manufacturer Substitute: B220A-13-F

The B220A-13-F manufactured by Diodes Incorporated is an active product offering enhanced specifications within the same electrical class. This part meets all primary substitution criteria with 20V reverse voltage and 2A current rating in DO-214AC (SMA) package. The B220A-13-F demonstrates improved forward voltage performance (500 mV @ 2A versus 550 mV) and reduced capacitance (200 pF versus 230 pF), resulting in lower switching losses. Operating temperature range extends to 150°C maximum junction temperature, exceeding the SS22-TP specification. This part is actively manufactured with 21767 units in stock and is suitable for new designs.

Parametric Equivalent Substitute: SK22A

The SK22A manufactured by Good-Ark Semiconductor provides full electrical equivalence with automotive-grade qualification (AEC-Q101). This part maintains 20V reverse voltage and 2A current specifications with identical 550 mV forward voltage performance. The SK22A offers reduced reverse leakage current (200 µA versus 500 µA) and lower capacitance (200 pF versus 230 pF), providing improved switching characteristics. Operating temperature range extends to 150°C maximum junction temperature. This part is actively manufactured with 7800 units in stock and carries automotive qualification suitable for demanding applications.

Limited Substitution: SS12 R3G

The SS12 R3G manufactured by Taiwan Semiconductor Corporation is a reduced-current variant rated for 1A average rectified current versus the 2A requirement of the SS22-TP. This part is classified as "Discontinued at DiGi Electronics" and does not meet the primary current substitution criterion. The SS12 R3G is not recommended as a direct replacement for the SS22-TP in applications requiring 2A current capacity.

Frequently Asked Questions (FAQ)

Q: Can the SS22-LTP be used as a direct replacement for the SS22-TP?

A: Yes. The SS22-LTP is a direct electrical equivalent with identical specifications across all critical parameters including voltage rating, current capacity, forward voltage drop, and operating temperature range. Both parts are manufactured by Micro Commercial Co in the same DO-214AC (SMA) package. The primary difference is packaging format (Tape & Reel for SS22-LTP) and product lifecycle status (Not For New Designs versus Obsolete).

Q: What is the difference between the B220A-13-F and the SS22-TP?

A: The B220A-13-F is manufactured by Diodes Incorporated and meets all primary electrical requirements (20V, 2A, DO-214AC package). Key differences include improved forward voltage performance (500 mV versus 550 mV at 2A), reduced capacitance (200 pF versus 230 pF), extended operating temperature range (-65 to 150°C versus -55 to 125°C), and active product status. The B220A-13-F is suitable for new designs and offers superior long-term availability.

Q: Why is the SS12 R3G listed as a substitute if it has lower current rating?

A: The SS12 R3G is listed in the original SS22-TP substitute field but does not meet the primary current substitution criterion of 2A. This part is rated for 1A average rectified current and is not suitable for applications requiring the full 2A capacity of the SS22-TP. The SS12 R3G is appropriate only for applications with reduced current requirements.

Q: Is the SK22A suitable for automotive applications?

A: Yes. The SK22A carries AEC-Q101 automotive qualification and is graded for automotive use. This part meets all electrical specifications of the SS22-TP with enhanced reverse leakage performance (200 µA versus 500 µA) and extended operating temperature range to 150°C. The SK22A is actively manufactured and suitable for automotive and demanding industrial applications.

Q: What packaging formats are available for substitute parts?

A: The SS22-LTP and SK22A are supplied in Tape & Reel (TR) format suitable for automated assembly. The B220A-13-F is supplied in Cut Tape (CT) and Digi-Reel® format. All substitute parts are available in the same DO-214AC (SMA) surface mount package as the original SS22-TP, ensuring mechanical compatibility with existing PCB layouts.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (SS22-LTP, B220A-13-F, SS12 R3G, and SK22A) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Which substitute part offers the best long-term availability?

A: The B220A-13-F manufactured by Diodes Incorporated offers the best long-term availability with 21767 units in stock and active product status. This part is actively manufactured and suitable for new designs, providing superior supply chain continuity compared to obsolete or discontinued alternatives.