SMBJ8.0CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ8.0CA-M3/52 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and is designed for general-purpose transient voltage suppression applications. The part is Active status and RoHS3 compliant, making it suitable for modern electronic designs requiring ESD and surge protection.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is needed to ensure supply chain continuity.

Substiute Parts

SMBJ8.0CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 994SMBJ8.0CA-M3/52 Datasheet

Current PartRFQ

SMBJ8.0CD-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 8508SMBJ8.0CD-M3/H Datasheet

DirectRFQ

SMBJ8.0CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 3110SMBJ8.0CA-E3/52 Datasheet

MFR RecommendedRFQ

SMBJ8.0CA

MDDIn Stock: 3454SMBJ8.0CA Datasheet

DirectRFQ

SMBJ8.0CA-13-F

Diodes IncorporatedIn Stock: 4103SMBJ8.0CA-13-F Datasheet

DirectRFQ

SMBJ8.0CA-TP

Micro Commercial CoIn Stock: 2488SMBJ8.0CA-TP Datasheet

DirectRFQ

SMBJ8V0CA

Taiwan Semiconductor CorporationIn Stock: 4360SMBJ8V0CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ8.0CA-M3/52 is determined by strict electrical and mechanical parameter matching:

Critical Substitution Parameters:

• Voltage - Reverse Standoff (Typ): 8V
• Voltage - Clamping (Max) @ Ipp: 13.6V (±0.2V tolerance acceptable)
• Current - Peak Pulse (10/1000µs): 44.1A (±0.7A tolerance acceptable)
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C minimum to 150°C minimum

All identified substitute parts maintain these critical parameters within acceptable engineering tolerances. Variations in clamping voltage (13.4V to 13.6V) and peak pulse current (44.1A to 44.8A) remain within the functional specification window for this device category.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original SMBJ8.0CA-M3/52 specification.

Primary Substitutes (Identical Electrical Performance):

• SMBJ8.0CA-E3/52 (Vishay) — Identical clamping voltage and peak pulse current; same manufacturer as primary part
• SMBJ8.0CA-13-F (Diodes Incorporated) — Identical electrical parameters; established manufacturer in TVS diode category
• SMBJ8V0CA (Taiwan Semiconductor Corporation) — Identical electrical parameters; alternative manufacturer source

Secondary Substitute (Minor Parameter Variation):

• SMBJ8.0CD-M3/H (Vishay) — Clamping voltage 13.4V (0.2V lower) with slightly higher peak pulse current (44.8A); functionally equivalent within transient suppression application window

Alternative Source (Extended Temperature Range):

• SMBJ8.0CA-TP (Micro Commercial Co) — Identical electrical parameters with extended upper operating temperature to 175°C; suitable for high-temperature environments

Cross-Manufacturer Option (Minor Parameter Variation):

• SMBJ8.0CA (MDD) — Clamping voltage and peak pulse current within tolerance; minimum operating temperature -50°C (5°C higher than primary part)

Frequently Asked Questions (FAQ)

Q: Can SMBJ8.0CD-M3/H replace SMBJ8.0CA-M3/52 directly?

A: Yes. The SMBJ8.0CD-M3/H maintains the same 8V reverse standoff voltage and 600W peak pulse power. The clamping voltage difference (13.4V vs 13.6V) and peak pulse current variation (44.8A vs 44.1A) remain within acceptable engineering tolerances for general-purpose transient voltage suppression applications.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the DO-214AA (SMB) surface mount package, ensuring mechanical and PCB layout compatibility with the original SMBJ8.0CA-M3/52.

Q: What is the difference between SMBJ8.0CA-M3/52 and SMBJ8.0CA-E3/52?

A: Both parts are manufactured by Vishay and share identical electrical specifications: 8V reverse standoff, 13.6V clamping voltage, and 44.1A peak pulse current. The difference lies in packaging format designation (M3/52 vs E3/52), which reflects different tape and reel configurations for automated assembly.

Q: Can I use SMBJ8.0CA-TP in applications requiring -55°C operation?

A: Yes. The SMBJ8.0CA-TP operates from -55°C to 175°C, exceeding the -55°C to 150°C range of the primary part. It is suitable for all temperature conditions specified for SMBJ8.0CA-M3/52.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the regulatory compliance of the original SMBJ8.0CA-M3/52.

Q: Which substitute offers the widest operating temperature range?

A: The SMBJ8.0CA-TP (Micro Commercial Co) provides the widest operating temperature range at -55°C to 175°C, compared to the primary part's -55°C to 150°C specification.

Q: Can I mix different manufacturers in the same design?

A: Yes. All substitute parts maintain identical or functionally equivalent electrical parameters and the same DO-214AA (SMB) package. Cross-manufacturer substitution is permissible within the same PCB assembly.