1SMB20A TR13 PBFREE Equivalent & Substitute Parts

Part Overview

The 1SMB20A TR13 PBFREE is a unidirectional transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 20V reverse standoff voltage and provides 600W peak pulse power dissipation in a DO-214AA (SMB) package. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

1SMB20A TR13 PBFREE

Central Semiconductor CorpIn Stock: 9881SMB20A TR13 PBFREE Datasheet

Current PartRFQ

SMBJ20A

Good-Ark SemiconductorIn Stock: 38643SMBJ20A Datasheet

DirectRFQ

SMBJ20A-13-F

Diodes IncorporatedIn Stock: 35279SMBJ20A-13-F Datasheet

DirectRFQ

SMBJ20A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 6166SMBJ20A-E3/52 Datasheet

DirectRFQ

SMBJ20A-TP

Micro Commercial CoIn Stock: 3850SMBJ20A-TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1SMB20A TR13 PBFREE are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 20V
• Voltage - Breakdown (Min): 22.2V
• Voltage - Clamping (Max) @ Ipp: 32.4V
• Current - Peak Pulse (10/1000µs): 18.5A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional
• RoHS Status: ROHS3 Compliant

All identified substitute parts maintain identical electrical performance specifications and package compatibility. Variations in operating temperature range and packaging format (Tape & Reel vs. Cut Tape) do not affect functional equivalence for general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the 1SMB20A TR13 PBFREE. Selection among these equivalents should be based on:

• Availability and inventory levels from preferred suppliers
• Packaging format requirements (Tape & Reel or Cut Tape)
• Operating temperature range requirements for specific applications
• Compliance certifications (all parts are ROHS3 compliant and REACH unaffected)
• Lead time and cost considerations

The SMBJ20A-TP variant from Micro Commercial Co offers the widest operating temperature range (-55°C ~ 175°C), which may be advantageous for high-temperature applications. The SMBJ20A from Good-Ark Semiconductor provides the highest inventory availability at 38,610 pieces.

Frequently Asked Questions (FAQ)

Q: Can SMBJ20A substitute for 1SMB20A TR13 PBFREE in production designs?

A: Yes. Both parts share identical electrical specifications (20V standoff, 32.4V clamping, 18.5A peak pulse, 600W power dissipation) and the same DO-214AA (SMB) package. They are functionally equivalent for general-purpose TVS applications.

Q: What is the difference between the substitute parts listed?

A: The substitute parts are manufactured by different suppliers (Good-Ark Semiconductor, Diodes Incorporated, Vishay, and Micro Commercial Co) but maintain identical electrical performance. Operating temperature ranges vary slightly: most operate from -55°C to 150°C, while SMBJ20A-TP extends to 175°C. Packaging formats differ between Tape & Reel and Cut Tape options.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the 1SMB20A TR13 PBFREE.

Q: Does the DO-214AA package differ between manufacturers?

A: No. The DO-214AA (SMB) package is a standardized surface-mount package. All parts listed use this identical package specification, ensuring mechanical and electrical compatibility on PCBs designed for the 1SMB20A TR13 PBFREE.

Q: Which substitute part has the best availability?

A: The SMBJ20A from Good-Ark Semiconductor has the highest inventory level at 38,610 pieces in stock, followed by SMBJ20A-13-F from Diodes Incorporated with 35,200 pieces.