SMBJ17A-13 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SMBJ17A-13 is a unidirectional Zener-type transient voltage suppressor diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. The device features a 17V reverse standoff voltage with 27.6V maximum clamping voltage and 21.7A peak pulse current capability in a DO-214AA (SMB) package. This part is currently discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

SMBJ17A-13

Diodes IncorporatedIn Stock: 1159SMBJ17A-13 Datasheet

Current PartRFQ

SMBJ17A-13-F

Diodes IncorporatedIn Stock: 1994SMBJ17A-13-F Datasheet

MFR RecommendedRFQ

SMBJ17A

MeritekIn Stock: 15470SMBJ17A Datasheet

DirectRFQ

SMBJ17A

MeritekIn Stock: 15470SMBJ17A Datasheet

DirectRFQ

SMBJ17A

MeritekIn Stock: 15470SMBJ17A Datasheet

DirectRFQ

PTVS16VP1UP,115

Nexperia USA Inc.In Stock: 15463PTVS16VP1UP,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ17A-13 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 17V
• Voltage - Breakdown (Min): 18.9V
• Voltage - Clamping (Max) @ Ipp: 27.6V
• Current - Peak Pulse (10/1000µs): 21.7A (±tolerance)
• Power - Peak Pulse: 600W
• Type: Zener, Unidirectional (1 channel)

Mechanical Equivalence Criteria:

• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C

Substitute Parts Identified:

1. SMBJ17A-13-F (Diodes Incorporated) — Manufacturer-recommended direct substitute with identical electrical specifications and improved product status (Active). Packaging variant: Tape & Reel (TR).

2. SMBJ17A (Meritek) — Direct electrical equivalent with matching voltage and current ratings. Product status: Active. Packaging information not specified.

3. PTVS16VP1UP,115 (Nexperia USA Inc.) — Partial electrical equivalent with minor parameter variations. Voltage - Reverse Standoff: 16V; Voltage - Clamping: 26V; Current - Peak Pulse: 23.1A. Different package: SOD-128/CFP5. Automotive-grade with AEC-Q101 qualification. Product status: Discontinued at DiGi Electronics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SMBJ17A-13-F (Diodes Incorporated)

This is the manufacturer-recommended substitute and provides complete electrical and mechanical equivalence to the SMBJ17A-13. The SMBJ17A-13-F maintains identical voltage and current specifications while offering improved product status (Active) and ROHS3 compliance. The only difference is packaging format (Tape & Reel vs. bulk), which does not affect electrical performance. This part is the preferred choice for direct replacement.

Secondary Substitute: SMBJ17A (Meritek)

The SMBJ17A from Meritek provides full electrical equivalence with peak pulse current of 21.74A (within tolerance of the original 21.7A specification). Product status is Active with ROHS3 compliance. This part is suitable for applications where the original manufacturer is not a requirement. Packaging information is not specified; verify availability in required format before selection.

Alternative Substitute: PTVS16VP1UP,115 (Nexperia USA Inc.)

This part presents electrical parameter variations: 16V reverse standoff (vs. 17V), 26V clamping voltage (vs. 27.6V), and 23.1A peak pulse current (vs. 21.7A). The package is SOD-128, which differs from the SMB package of the main part and requires PCB layout modification. This part includes automotive-grade qualification (AEC-Q101) and is discontinued at DiGi Electronics. Selection of this part is appropriate only when automotive qualification is a design requirement and PCB layout can accommodate the SOD-128 package.

Frequently Asked Questions (FAQ)

Q: Can SMBJ17A-13-F be used as a direct drop-in replacement for SMBJ17A-13?

A: Yes. The SMBJ17A-13-F is electrically and mechanically identical to the SMBJ17A-13. The only difference is packaging format (Tape & Reel). Both use the DO-214AA (SMB) package and have identical electrical specifications. No circuit modifications are required.

Q: What is the difference between SMBJ17A-13 and SMBJ17A?

A: The SMBJ17A-13 is a specific part number variant from Diodes Incorporated. The SMBJ17A from Meritek is a different manufacturer's equivalent with matching electrical specifications (17V standoff, 27.6V clamping, 21.74A peak pulse). Both are unidirectional Zener TVS diodes in SMB packages suitable for the same applications.

Q: Why is PTVS16VP1UP,115 listed as a substitute if the voltage ratings differ?

A: The PTVS16VP1UP,115 is included because it was referenced in the original part's substitute list. However, the 16V standoff and 26V clamping voltages represent parameter variations that may not be suitable for all applications. This part is appropriate only when the lower voltage ratings are acceptable for the circuit design and when automotive qualification (AEC-Q101) is required.

Q: Does the RoHS compliance difference between SMBJ17A-13 and its substitutes affect compatibility?

A: The SMBJ17A-13 is RoHS non-compliant, while SMBJ17A-13-F and SMBJ17A are ROHS3 compliant. For new designs and applications subject to RoHS regulations, the compliant substitutes are required. For legacy systems or applications without RoHS requirements, either part may be used. Verify regulatory requirements for your specific application.

Q: Can SMBJ17A-13 be used in automotive applications?

A: The SMBJ17A-13 does not carry automotive qualification. The PTVS16VP1UP,115 is AEC-Q101 qualified for automotive use. If automotive qualification is required, use the Nexperia part; otherwise, the Diodes Incorporated parts are suitable for general-purpose applications.

Q: What is the significance of the SMB vs. SOD-128 package difference?

A: SMB (DO-214AA) and SOD-128 are different physical packages with different footprints and pin configurations. Substituting PTVS16VP1UP,115 (SOD-128) for SMBJ17A-13 (SMB) requires PCB layout modification and cannot be performed as a direct drop-in replacement. Verify PCB compatibility before selecting this alternative.