Request Quote
(Ships tomorrow)
SMCJ22A-13 Equivalent & Substitute Parts
Part Overview
The SMCJ22A-13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AB (SMC) surface mount package. This component is designed for general-purpose transient voltage protection applications with a 22V reverse standoff voltage and 35.5V maximum clamping voltage at peak pulse current of 42.2A.
The SMCJ22A-13 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with identical or enhanced electrical characteristics, providing direct functional replacement options while maintaining compatibility with existing PCB designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SMCJ22A-13 |
| Manufacturer | Diodes Incorporated |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Zener |
| Unidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 22V |
| Voltage - Breakdown (Min) | 24.4V |
| Voltage - Clamping (Max) @ Ipp | 35.5V |
| Current - Peak Pulse (10/1000µs) | 42.2A |
| Power - Peak Pulse | 1500W (1.5kW) |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | DO-214AB, SMC |
| Product Status | Discontinued at DiGi Electronics |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitute parts are grouped based on strict electrical and mechanical compatibility criteria:
Primary Substitution Criteria (Must Match):
- Unidirectional Channels: 1
- Voltage - Reverse Standoff (Typ): 22V
- Voltage - Breakdown (Min): 24.4V
- Voltage - Clamping (Max) @ Ipp: 35.5V
- Mounting Type: Surface Mount
- Package / Case: DO-214AB, SMC
Grouping Categories:
Group 1: Direct Electrical & Packaging Equivalents Parts with identical electrical specifications and packaging. These provide drop-in replacement capability with no circuit redesign required.
Group 2: Enhanced Performance Alternatives Parts with identical core voltage specifications but higher peak pulse current ratings and power dissipation. These provide superior transient protection capability while maintaining electrical compatibility.
Group 3: Variant Specifications Parts with identical voltage ratings but different clamping voltage or peak pulse current characteristics. Selection depends on specific circuit protection requirements.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Operating Temperature | Package / Case | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| SMCJ22A-13 | Diodes Incorporated | 22V | 24.4V | 35.5V | 42.2A | 1500W | -55°C ~ 150°C | DO-214AB, SMC | Discontinued | RoHS non-compliant |
| SMCJ22A-13-F | Diodes Incorporated | 22V | 24.4V | 35.5V | 42.2A | 1500W | -55°C ~ 150°C | DO-214AB, SMC | Active | ROHS3 Compliant |
| SMCJ22A | Fairchild Semiconductor | 22V | 24.4V | 35.5V | 42.3A | 1500W | -55°C ~ 150°C | DO-214AB, SMC | Active | Not specified |
| 5.0SMDJ22A | Taiwan Semiconductor Corporation | 22V | 24.4V | 35.5V | 141A | 5000W | -55°C ~ 175°C | DO-214AB, SMC | Active | ROHS3 Compliant |
| 5.0SMDJ22A-T7 | Littelfuse Inc. | 22V | 24.4V | 35.5V | 141A | 5000W | -65°C ~ 150°C | DO-214AB, SMC | Active | ROHS3 Compliant |
| SMCJ22A-TR | STMicroelectronics | 22V | 24.4V | 48.3V | 207A (8/20µs) | 1500W | -55°C ~ 150°C | DO-214AB, SMC | Active | ROHS3 Compliant |
| SMDJ22A | Alpha & Omega Semiconductor Inc. | 22V | 24.4V | 35.5V | 84.6A | 3000W | -55°C ~ 150°C | DO-214AB, SMC | Active | ROHS3 Compliant |
| SMLJ22A | Bourns Inc. | 22V | 24.4V | 35.5V | 84.4A | 3000W | -55°C ~ 150°C | DO-214AB, SMC | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Replacement (Identical Specifications):
SMCJ22A-13-F from Diodes Incorporated is the direct equivalent with identical electrical performance (22V standoff, 35.5V clamping, 42.2A peak pulse current). This part is currently active in production and ROHS3 compliant, addressing the RoHS non-compliance status of the discontinued SMCJ22A-13.
SMCJ22A from Fairchild Semiconductor provides equivalent functionality with marginally higher peak pulse current (42.3A vs 42.2A), maintaining identical voltage specifications and operating temperature range.
Enhanced Protection Alternatives:
SMDJ22A from Alpha & Omega Semiconductor and SMLJ22A from Bourns provide doubled power dissipation capability (3000W vs 1500W) with doubled peak pulse current (84.4A to 84.6A) while maintaining identical voltage specifications. These are suitable for applications requiring higher transient energy absorption.
5.0SMDJ22A from Taiwan Semiconductor Corporation and 5.0SMDJ22A-T7 from Littelfuse provide significantly enhanced protection with 5000W peak pulse power and 141A peak pulse current. The 5.0SMDJ22A-T7 extends the lower operating temperature limit to -65°C.
Variant Specification:
SMCJ22A-TR from STMicroelectronics maintains identical voltage standoff and breakdown specifications but features higher clamping voltage (48.3V vs 35.5V) and significantly higher peak pulse current (207A). This part is suitable only if the higher clamping voltage is acceptable for the application.
All recommended substitutes are available in active production status with ROHS3 compliance.
Frequently Asked Questions (FAQ)
Q: Can SMCJ22A-13-F be used as a direct replacement for SMCJ22A-13?
A: Yes. SMCJ22A-13-F is electrically identical with matching voltage specifications (22V standoff, 35.5V clamping) and peak pulse current (42.2A). The primary difference is packaging format (Tape & Reel vs bulk) and active production status with ROHS3 compliance.
Q: What is the difference between 1500W and 3000W rated parts?
A: Power rating indicates peak pulse power dissipation capability. Parts rated 3000W (SMDJ22A, SMLJ22A) can absorb twice the transient energy compared to 1500W parts. Selection depends on the magnitude and frequency of transient events in the application circuit.
Q: Why does SMCJ22A-TR have a higher clamping voltage (48.3V)?
A: SMCJ22A-TR from STMicroelectronics uses different internal design specifications. The 48.3V clamping voltage is higher than the 35.5V specification of the original part. This part is suitable only if the circuit design accommodates the higher clamping voltage without exceeding component voltage ratings downstream.
Q: Are all substitute parts available in the same DO-214AB package?
A: Yes. All listed substitute parts use the DO-214AB (SMC) surface mount package, ensuring mechanical and PCB layout compatibility with the original SMCJ22A-13 design.
Q: What is the significance of ROHS3 compliance?
A: ROHS3 compliance indicates the part meets current Restriction of Hazardous Substances regulations. The original SMCJ22A-13 is RoHS non-compliant. Substitutes with ROHS3 compliance are required for applications subject to RoHS regulations.
Q: Can higher-rated parts (5000W, 141A) be used in place of the original 1500W part?
A: Yes. Higher-rated parts provide enhanced transient protection capability and are electrically compatible with identical voltage specifications. No circuit redesign is required. The higher rating provides additional safety margin for transient suppression.
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