SMB8J14C-E3/52 Equivalent & Substitute Parts

Part Overview

The SMB8J14C-E3/52 is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This component is rated for 14V reverse standoff voltage with a 25.8V maximum clamping voltage and 31A peak pulse current in a surface mount DO-214AA (SMB) package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

SMB8J14C-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 703SMB8J14C-E3/52 Datasheet

Current PartRFQ

SMB8J14CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1170SMB8J14CA-E3/52 Datasheet

DirectRFQ

SMBJ14CA

MDDIn Stock: 30204SMBJ14CA Datasheet

MFR RecommendedRFQ

SMBJ14CA

MDDIn Stock: 30204SMBJ14CA Datasheet

MFR RecommendedRFQ

SMBJ14CA

MDDIn Stock: 30204SMBJ14CA Datasheet

MFR RecommendedRFQ

SMBJ14CAE3/TR13

Microchip TechnologyIn Stock: 907SMBJ14CAE3/TR13 Datasheet

MFR RecommendedRFQ

SMBJ14CE3/TR13

Microchip TechnologyIn Stock: 1137SMBJ14CE3/TR13 Datasheet

MFR RecommendedRFQ

TV06B140JB-G

Comchip TechnologyIn Stock: 3288TV06B140JB-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMB8J14C-E3/52 is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 14V
• Voltage - Breakdown (Min): 15.6V
• Package / Case: DO-214AA, SMB (surface mount)
• Bidirectional Channels: 1
• Type: Zener
• Applications: General Purpose
• RoHS Compliance: ROHS3 Compliant

Substitute parts must maintain the same reverse standoff voltage (14V), breakdown voltage (15.6V minimum), and surface mount DO-214AA package to ensure mechanical and electrical compatibility. Variations in clamping voltage, peak pulse current, and power dissipation are acceptable provided the part meets the minimum electrical requirements for the application.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility with the original SMB8J14C-E3/52. Selection among active alternatives should prioritize:

SMB8J14CA-E3/52 (Vishay): Direct Vishay alternative with active product status, identical operating temperature range (-55°C ~ 150°C), and matching 800W peak pulse power rating. Maintains the same manufacturer lineage as the obsolete part.

SMBJ14CAE3/TR13 (Microchip): Active part with extended lower operating temperature limit (-65°C ~ 150°C) and tape & reel packaging. Clamping voltage and peak pulse current remain within acceptable substitution parameters.

SMBJ14CE3/TR13 (Microchip): Active part matching the original 25.8V clamping voltage specification with extended temperature range (-65°C ~ 150°C). Suitable for applications requiring clamping voltage consistency with the original design.

SMBJ14CA (MDD): High-volume availability (30,100 pcs in stock) with active status. Operating temperature minimum of -50°C is acceptable for most general-purpose applications. Reduced peak pulse power (600W) requires verification against application requirements.

TV06B140JB-G (Comchip): Active alternative with high availability (3,200 pcs in stock) and matching 23.2V clamping voltage. Operating temperature range not specified; verification recommended before selection.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a lower peak pulse current rating than the original SMB8J14C-E3/52?

A: Substitutes with lower peak pulse current (such as SMBJ14CA at 25.9A versus the original 31A) are acceptable only if your application's actual transient current does not exceed the substitute's rating. Review your circuit's transient protection requirements before selection.

Q: What is the difference between the 23.2V and 25.8V clamping voltage options?

A: Both clamping voltages are valid substitutes as they fall within the acceptable range for 14V standoff voltage TVS diodes. The 25.8V clamping voltage (SMBJ14CE3/TR13) matches the original part's specification, while 23.2V options provide tighter clamping. Select based on your circuit's voltage tolerance requirements.

Q: Are all substitute parts available in tape & reel packaging?

A: Not all. SMB8J14CA-E3/52, SMBJ14CA (MDD), and TV06B140JB-G are available in standard packaging, while SMBJ14CAE3/TR13 and SMBJ14CE3/TR13 are specifically offered in tape & reel (TR) format. Verify packaging requirements with your procurement process.

Q: Does the operating temperature range affect substitution compatibility?

A: Operating temperature range affects suitability for specific environments. The original part operates from -55°C to 150°C. Microchip alternatives extend to -65°C, while MDD's SMBJ14CA operates from -50°C. Select based on your application's thermal requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with RoHS3-regulated applications and standard moisture-sensitive device handling procedures.

Q: Which substitute offers the best availability?

A: SMBJ14CA (MDD) provides the highest inventory level at 30,100 pieces in stock, followed by TV06B140JB-G (Comchip) at 3,200 pieces. SMB8J14CA-E3/52 (Vishay) offers 1,090 pieces as the most direct Vishay alternative.