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SMAJ8.0CA-TP Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts
Part Overview
The SMAJ8.0CA-TP is an 8V Zener transient voltage suppressor diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional TVS diode features a 13.6V maximum clamping voltage and 29.4A peak pulse current capability in a DO-214AC (SMA) package. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical specifications and package compatibility to support procurement flexibility and supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 8V |
| Voltage - Breakdown (Min) | 8.89V |
| Voltage - Clamping (Max) @ Ipp | 13.6V |
| Current - Peak Pulse (10/1000µs) | 29.4A |
| Power - Peak Pulse | 400W |
| Package / Case | DO-214AC, SMA |
| Mounting Type | Surface Mount |
| Type | Zener |
| Bidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitute parts for the SMAJ8.0CA-TP are qualified based on the following electrical and mechanical parameters:
- Voltage - Reverse Standoff (Typ): 8V
- Voltage - Breakdown (Min): 8.89V
- Voltage - Clamping (Max) @ Ipp: 13.6V
- Current - Peak Pulse (10/1000µs): 29.4A
- Power - Peak Pulse: 400W
- Package / Case: DO-214AC, SMA
- Mounting Type: Surface Mount
- Type: Zener
- Bidirectional Channels: 1
All identified substitute parts maintain identical electrical performance specifications and package compatibility, enabling direct functional replacement in circuit applications.
Parameter Comparison
| Parameter | SMAJ8.0CA-TP (Micro Commercial Co) | SMAJ8.0CA (MDD) | SMAJ8.0CA-13-F (Diodes Incorporated) | SMAJ8.0CA-E3/61 (Vishay) |
|---|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 8V | 8V | 8V | 8V |
| Voltage - Breakdown (Min) | 8.89V | 8.89V | 8.89V | 8.89V |
| Voltage - Clamping (Max) @ Ipp | 13.6V | 13.6V | 13.6V | 13.6V |
| Current - Peak Pulse (10/1000µs) | 29.4A | 29.4A | 29.4A | 29.4A |
| Power - Peak Pulse | 400W | 400W | 400W | 400W |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Type | Zener | Zener | Zener | Zener |
| Bidirectional Channels | 1 | 1 | 1 | 1 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active | Active | Active |
Engineering Selection Recommendations
All substitute parts listed maintain full compliance with RoHS3 and REACH regulations, with active production status. Selection among SMAJ8.0CA (MDD), SMAJ8.0CA-13-F (Diodes Incorporated), and SMAJ8.0CA-E3/61 (Vishay) is based on availability, lead time, and procurement requirements. Each part is functionally equivalent for circuit applications requiring 8V standoff protection with 13.6V clamping performance in surface-mount SMA packages.
Frequently Asked Questions (FAQ)
Q: Can SMAJ8.0CA (MDD) be used as a direct replacement for SMAJ8.0CA-TP?
A: Yes. Both parts share identical electrical specifications (8V standoff, 13.6V clamp, 29.4A peak pulse) and DO-214AC (SMA) package configuration, enabling direct functional substitution in circuit designs.
Q: What is the difference between SMAJ8.0CA-TP and SMAJ8.0CA-E3/61?
A: Both parts are electrically identical with matching voltage and current ratings. SMAJ8.0CA-E3/61 is manufactured by Vishay under the TransZorb® product line. The primary difference is manufacturer and packaging designation; both are suitable for equivalent circuit applications.
Q: Are all substitute parts available in the same package?
A: Yes. All substitute parts use the DO-214AC (SMA) surface-mount package, ensuring compatibility with existing PCB layouts and assembly processes.
Q: Do operating temperature ranges affect substitution eligibility?
A: Operating temperature ranges vary slightly among manufacturers (SMAJ8.0CA-TP: -55°C to 175°C; MDD variant: -50°C to 150°C; Diodes and Vishay variants: -55°C to 150°C). Selection should account for application temperature requirements, though all parts support general industrial temperature ranges.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements for commercial and industrial applications.
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