Request Quote
(Ships tomorrow)
SMCJ26A-13 Equivalent & Substitute Parts
Part Overview
The SMCJ26A-13 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, rated for 26V reverse standoff voltage with a 42.1V maximum clamping voltage at peak pulse current of 35.6A. The device is housed in a DO-214AB (SMC) surface mount package and is designed for general-purpose transient voltage suppression applications across an operating temperature range of -55°C to 150°C.
This part is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with matching or enhanced electrical specifications, ensuring design continuity and supply chain flexibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 26 | V |
| Voltage - Breakdown (Min) | 28.9 | V |
| Voltage - Clamping (Max) @ Ipp | 42.1 | V |
| Current - Peak Pulse (10/1000µs) | 35.6 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Package / Case | DO-214AB, SMC | — |
| Type | Zener | — |
| Unidirectional Channels | 1 | — |
| Applications | General Purpose | — |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ26A-13 are classified into two categories based on electrical performance and compliance status:
Category 1: Direct Electrical Equivalents (1500W Peak Pulse Power) These parts maintain the same voltage ratings (26V standoff, 28.9V breakdown minimum, 42.1V clamping maximum) and peak pulse power (1500W) as the original part. Peak pulse current ranges from 35.6A to 35.7A. These substitutes are suitable for applications requiring identical power dissipation characteristics.
Category 2: Enhanced Performance Alternatives (3000W–5000W Peak Pulse Power) These parts maintain identical voltage specifications but provide higher peak pulse current handling (71.2A to 119A) and increased peak pulse power ratings (3000W to 5000W). These substitutes are suitable for applications requiring greater transient energy absorption without exceeding the voltage clamping specifications.
Key Parameters Determining Substitution:
- Voltage - Reverse Standoff: 26V (fixed)
- Voltage - Breakdown (Min): 28.9V (fixed)
- Voltage - Clamping (Max) @ Ipp: 42.1V (fixed)
- Package / Case: DO-214AB, SMC (fixed)
- Unidirectional Channels: 1 (fixed)
- Type: Zener (fixed)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Breakdown Min (V) | Voltage - Clamping Max @ Ipp (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temp (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ26A-13 | Diodes Incorporated | 26 | 28.9 | 42.1 | 35.6 | 1500 | -55 to 150 | Discontinued | Non-compliant |
| SMCJ26A-13-F | Diodes Incorporated | 26 | 28.9 | 42.1 | 35.6 | 1500 | -55 to 150 | Active | ROHS3 Compliant |
| SMCJ26A-TP | Micro Commercial Co | 26 | 28.9 | 42.1 | 35.7 | 1500 | -55 to 175 | Active | ROHS3 Compliant |
| SMCJ26A | MDD | 26 | 28.9 | 42.1 | 35.7 | 1500 | -50 to 150 | Active | ROHS3 Compliant |
| SMCJ26A-TR | STMicroelectronics | 26 | 28.9 | 54.6 | 187 | 1500 | -55 to 150 | Active | ROHS3 Compliant |
| SMDJ26A | Alpha & Omega Semiconductor Inc. | 26 | 28.9 | 42.1 | 71.3 | 3000 | -55 to 150 | Active | ROHS3 Compliant |
| SMLJ26A | Bourns Inc. | 26 | 28.9 | 42.1 | 71.2 | 3000 | -55 to 150 | Active | ROHS3 Compliant |
| 5.0SMDJ26A | Taiwan Semiconductor Corporation | 26 | 28.9 | 42.1 | 119 | 5000 | -55 to 175 | Active | ROHS3 Compliant |
| 5.0SMDJ26A-T7 | Littelfuse Inc. | 26 | 28.9 | 42.1 | 119 | 5000 | -65 to 150 | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For Direct Replacement (Identical Specifications): SMCJ26A-13-F (Diodes Incorporated) is the primary direct substitute. It maintains all electrical parameters of the original part while offering active product status and ROHS3 compliance. This part is recommended for applications requiring no design modifications.
For Extended Temperature Range: SMCJ26A-TP (Micro Commercial Co) extends the upper operating temperature to 175°C while maintaining all voltage and current specifications. This option is suitable for applications operating in elevated ambient conditions.
For Enhanced Transient Energy Absorption: SMDJ26A (Alpha & Omega Semiconductor Inc.) and SMLJ26A (Bourns Inc.) provide 3000W peak pulse power with peak pulse currents of 71.3A and 71.2A respectively, doubling the energy absorption capability while maintaining identical voltage clamping characteristics. These parts are suitable for applications experiencing higher transient energy levels.
For Maximum Transient Protection: 5.0SMDJ26A (Taiwan Semiconductor Corporation) and 5.0SMDJ26A-T7 (Littelfuse Inc.) provide 5000W peak pulse power with 119A peak pulse current, offering the highest transient energy absorption. The 5.0SMDJ26A-T7 variant extends the lower operating temperature to -65°C, suitable for extreme cold environment applications.
All recommended substitutes are ROHS3 compliant and carry active product status, ensuring long-term supply availability and regulatory compliance.
Frequently Asked Questions (FAQ)
Q: Can SMCJ26A-13-F be used as a direct replacement for SMCJ26A-13? A: Yes. SMCJ26A-13-F is electrically identical to SMCJ26A-13, with matching voltage ratings (26V standoff, 42.1V clamping), peak pulse current (35.6A), and power dissipation (1500W). The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant). No circuit modifications are required.
Q: What is the difference between 1500W and 3000W/5000W rated parts? A: Peak pulse power rating indicates the maximum transient energy the device can absorb during a single pulse event. Higher power ratings (3000W, 5000W) allow the device to suppress larger transient events without degradation. Voltage clamping characteristics remain identical across all ratings. Selection depends on the magnitude of transient energy expected in the application.
Q: Are all substitute parts in the same DO-214AB (SMC) package? A: Yes. All listed substitutes use the DO-214AB (SMC) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.
Q: What is the significance of the voltage clamping specification? A: Voltage clamping (42.1V maximum @ Ipp) defines the maximum voltage the device will allow across its terminals during transient suppression. This specification must not be exceeded in the application circuit. All listed substitutes maintain this 42.1V clamping limit, except SMCJ26A-TR which clamps at 54.6V and is suitable only for applications tolerating higher clamping voltages.
Q: Which substitute offers the widest operating temperature range? A: 5.0SMDJ26A-T7 (Littelfuse Inc.) provides the widest range at -65°C to 150°C, suitable for applications in extreme cold environments. For extended high-temperature operation, SMCJ26A-TP and 5.0SMDJ26A both support -55°C to 175°C.
Q: Are all substitutes RoHS compliant? A: All listed active substitutes are ROHS3 compliant. The original SMCJ26A-13 is RoHS non-compliant. ROHS3 compliance is required for applications subject to EU Restriction of Hazardous Substances regulations.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts