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SMAJ13CA-TP Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts
Part Overview
The SMAJ13CA-TP is a surface mount transient voltage suppressor diode manufactured by Micro Commercial Co, classified as a unidirectional Zener TVS diode in the DO-214AC (SMA) package. This component is designed for general purpose transient voltage suppression applications with a 13V reverse standoff voltage and 21.5V maximum clamping voltage. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Alternative equivalent parts are available from multiple manufacturers to support supply chain flexibility and inventory management.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SMAJ13CA-TP |
| Manufacturer | Micro Commercial Co |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Zener |
| Voltage - Reverse Standoff (Typ) | 13V |
| Voltage - Breakdown (Min) | 14.4V |
| Voltage - Clamping (Max) @ Ipp | 21.5V |
| Current - Peak Pulse (10/1000µs) | 18.6A |
| Power - Peak Pulse | 400W |
| Package / Case | DO-214AC, SMA |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -55°C ~ 175°C (TA) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the SMAJ13CA-TP is determined by strict electrical and mechanical parameter matching across the following criteria:
Critical Matching Parameters:
- Voltage - Reverse Standoff (Typ): 13V
- Voltage - Breakdown (Min): 14.4V
- Voltage - Clamping (Max) @ Ipp: 21.5V
- Current - Peak Pulse (10/1000µs): 18.6A
- Power - Peak Pulse: 400W
- Package / Case: DO-214AC, SMA
- Mounting Type: Surface Mount
- Type: Zener
- Bidirectional Channels: 1
All substitute parts listed maintain identical electrical specifications across voltage ratings, peak pulse current, and power dissipation. All substitute parts are packaged in the DO-214AC (SMA) surface mount package, ensuring mechanical and footprint compatibility. Compliance certifications (ROHS3, REACH Unaffected, EAR99) are consistent across all listed alternatives.
Parameter Comparison
| Parameter | SMAJ13CA-TP (Micro Commercial Co) | SMAJ13CA (Meritek) | SMAJ13CA-13-F (Diodes Incorporated) | SMAJ13CA-E3/61 (Vishay) | P4SMAJ13CA_R1_00001 (Panjit) |
|---|---|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 13V | 13V | 13V | 13V | 13V |
| Voltage - Breakdown (Min) | 14.4V | 14.4V | 14.4V | 14.4V | 14.4V |
| Voltage - Clamping (Max) @ Ipp | 21.5V | 21.5V | 21.5V | 21.5V | 21.5V |
| Current - Peak Pulse (10/1000µs) | 18.6A | 18.6A | 18.6A | 18.6A | 18.6A |
| Power - Peak Pulse | 400W | 400W | 400W | 400W | 400W |
| Package / Case | 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 |
| Operating Temperature Range | -55°C ~ 175°C (TA) | -55°C ~ 150°C | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Type | Zener | Zener | Zener | Zener | Zener |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All listed substitute parts meet the electrical and mechanical requirements for direct replacement of the SMAJ13CA-TP. Selection among equivalent parts should be based on the following factors:
Compliance & Certification: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 export classification, consistent with the original part.
Product Status: All alternatives are in active production status, ensuring long-term availability and supply chain stability.
Operating Temperature Range: The SMAJ13CA-TP operates across -55°C to 175°C (TA). Substitute parts from Meritek, Diodes Incorporated, Vishay, and Panjit operate across -55°C to 150°C. Applications requiring operation above 150°C must use the original SMAJ13CA-TP from Micro Commercial Co.
Inventory Availability: Current stock levels vary across manufacturers. Meritek SMAJ13CA offers the highest inventory (59,179 pcs), followed by Diodes Incorporated SMAJ13CA-13-F (15,478 pcs), Micro Commercial Co SMAJ13CA-TP (10,300 pcs), Panjit P4SMAJ13CA_R1_00001 (2,502 pcs), and Vishay SMAJ13CA-E3/61 (2,044 pcs).
Frequently Asked Questions (FAQ)
Q: Can SMAJ13CA from Meritek be used as a direct replacement for SMAJ13CA-TP from Micro Commercial Co?
A: Yes. Both parts share identical electrical specifications (13V reverse standoff, 21.5V clamping voltage, 18.6A peak pulse current, 400W peak power) and are packaged in DO-214AC (SMA) surface mount configuration. The primary difference is the operating temperature range: Meritek SMAJ13CA operates to 150°C while the original operates to 175°C. For applications within the -55°C to 150°C range, substitution is valid.
Q: What is the difference between SMAJ13CA-13-F and SMAJ13CA-E3/61?
A: Both parts are electrically identical with matching voltage ratings, peak pulse current, and power specifications. SMAJ13CA-13-F is manufactured by Diodes Incorporated while SMAJ13CA-E3/61 is manufactured by Vishay (TransZorb® series). Both are packaged in DO-214AC (SMA) and operate across -55°C to 150°C. Selection between these parts depends on manufacturer preference and inventory availability.
Q: Is P4SMAJ13CA_R1_00001 from Panjit a suitable substitute?
A: Yes. The Panjit P4SMAJ13CA_R1_00001 maintains all critical electrical parameters (13V reverse standoff, 21.5V clamping, 18.6A peak pulse, 400W peak power) and is packaged in DO-214AC (SMA) surface mount configuration. Operating temperature range is -55°C to 150°C. This part is suitable for applications within the specified temperature range.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts, including SMAJ13CA (Meritek), SMAJ13CA-13-F (Diodes Incorporated), SMAJ13CA-E3/61 (Vishay), and P4SMAJ13CA_R1_00001 (Panjit), are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.
Q: What packaging options are available for these TVS diodes?
A: All listed parts are supplied in Tape & Reel (TR) packaging in the DO-214AC (SMA) surface mount package. This ensures consistent handling, storage, and automated assembly compatibility across all substitute options.
Q: Which substitute part has the highest current inventory?
A: Meritek SMAJ13CA currently has the highest inventory at 59,179 pieces, followed by Diodes Incorporated SMAJ13CA-13-F at 15,478 pieces. For applications requiring immediate availability, these options provide the best supply assurance.
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