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SMAJ8.0CE3/TR13 Equivalent & Substitute Parts
Part Overview
The SMAJ8.0CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with an 8V reverse standoff voltage and provides 15V maximum clamping voltage at peak pulse current. The device is packaged in DO-214AC (SMA) format and is actively produced with ROHS3 compliance and unlimited moisture sensitivity rating.
Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the TVS diode category. Substitutes maintain the same reverse standoff voltage, breakdown voltage, bidirectional channel configuration, and surface-mount package specification.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | SMAJ8.0CE3/TR13 | — |
| Manufacturer | Microchip Technology | — |
| Category | Transient Voltage Suppressors (TVS) | — |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
| Voltage - Reverse Standoff (Typ) | 8 | V |
| Voltage - Breakdown (Min) | 8.89 | V |
| Voltage - Clamping (Max) @ Ipp | 15 | V |
| Current - Peak Pulse (10/1000µs) | 33.3 | A |
| Power - Peak Pulse | 500 | W |
| Package / Case | DO-214AC, SMA | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature | -65 to 150 | °C (TJ) |
| RoHS Status | ROHS3 Compliant | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitute parts for the SMAJ8.0CE3/TR13 are identified based on the following critical electrical and mechanical parameters:
Matching Criteria:
- Reverse Standoff Voltage: 8V (Typ)
- Breakdown Voltage (Min): 8.89V
- Bidirectional Channels: 1
- Package Type: DO-214AC / SMA (Surface Mount)
- Zener Type: Bidirectional TVS Diode
- Applications: General Purpose
Substitution Logic: All identified substitute parts maintain identical reverse standoff voltage and breakdown voltage specifications, ensuring equivalent circuit protection thresholds. All substitutes are packaged in DO-214AC (SMA) format with single bidirectional channel configuration, providing direct mechanical and electrical compatibility.
Substitute parts differ in clamping voltage (13.6V vs. 15V), peak pulse current (29.4A vs. 33.3A), and peak pulse power (400W vs. 500W). These differences reflect manufacturing variations across suppliers while maintaining the same voltage protection class and package standard.
Parameter Comparison
| Parameter | SMAJ8.0CE3/TR13 (Microchip) | SMAJ8.0CA (MDD) | SMAJ8.0CA-13-F (Diodes Inc.) | SMAJ8.0CA-E3/5A (Vishay) | SMAJ8.0CA-E3/61 (Vishay) | SMAJ8.0CA-TP (MCC) |
|---|---|---|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 8V | 8V | 8V | 8V | 8V | 8V |
| Voltage - Breakdown (Min) | 8.89V | 8.89V | 8.89V | 8.89V | 8.89V | 8.89V |
| Voltage - Clamping (Max) @ Ipp | 15V | 13.6V | 13.6V | 13.6V | 13.6V | 13.6V |
| Current - Peak Pulse (10/1000µs) | 33.3A | 29.4A | 29.4A | 29.4A | 29.4A | 29.4A |
| Power - Peak Pulse | 500W | 400W | 400W | 400W | 400W | 400W |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Bidirectional Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Type | Zener | Zener | Zener | Zener | Zener | Zener |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All identified substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original SMAJ8.0CE3/TR13 specification. Each substitute is manufactured by established semiconductor suppliers with documented production capacity.
Inventory Availability:
- SMAJ8.0CA-E3/61 (Vishay): 36,100 units
- SMAJ8.0CA (MDD): 50,100 units
- SMAJ8.0CA-E3/5A (Vishay): 8,331 units
- SMAJ8.0CA-13-F (Diodes Inc.): 3,100 units
- SMAJ8.0CA-TP (MCC): 1,047 units
Compliance Certifications: All substitute parts carry ROHS3 compliance, REACH Unaffected status, and unlimited moisture sensitivity rating (MSL 1), matching the original part's environmental and regulatory qualifications.
Operating Temperature Ranges: The SMAJ8.0CA-TP variant extends to -55°C to 175°C (TA), providing broader temperature coverage compared to the original -65°C to 150°C (TJ) specification. Other substitutes operate within -50°C to -55°C minimum and 150°C maximum ranges.
Frequently Asked Questions (FAQ)
Q: Can SMAJ8.0CA substitute directly for SMAJ8.0CE3/TR13?
A: Yes. Both parts share identical reverse standoff voltage (8V), breakdown voltage (8.89V), bidirectional channel configuration (1), and DO-214AC/SMA package specification. The SMAJ8.0CA operates within compatible electrical parameters for general-purpose TVS applications.
Q: What is the difference between 15V clamping and 13.6V clamping specifications?
A: The SMAJ8.0CE3/TR13 specifies 15V maximum clamping voltage at peak pulse current, while substitute parts specify 13.6V. Both values fall within the same voltage protection class and maintain the 8V reverse standoff threshold. The difference reflects manufacturing tolerance variations across suppliers.
Q: Are all substitute parts available in tape and reel packaging?
A: Yes. All identified substitutes are supplied in Tape & Reel (TR) format, maintaining compatibility with automated assembly processes.
Q: Does the 29.4A peak pulse current of substitutes affect circuit protection?
A: The substitute parts specify 29.4A peak pulse current compared to 33.3A for the original part. Both ratings exceed typical transient suppression requirements in general-purpose applications. Selection depends on specific circuit transient energy levels.
Q: Are there temperature rating differences between substitutes?
A: Operating temperature ranges vary slightly across manufacturers. The SMAJ8.0CA-TP extends to 175°C ambient temperature, while other substitutes operate to 150°C junction temperature. The original SMAJ8.0CE3/TR13 operates to 150°C junction temperature. Selection depends on application thermal environment.
Q: Do all substitutes carry the same regulatory compliance?
A: Yes. All identified substitutes are ROHS3 compliant, REACH Unaffected, and carry unlimited moisture sensitivity rating (MSL 1), matching the original part's environmental qualifications.
Q: Which substitute offers the highest inventory availability?
A: SMAJ8.0CA manufactured by MDD provides 50,100 units in stock, offering the largest available inventory among identified substitutes.
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