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SMBJ150CA-13 Equivalent & Substitute Parts
Part Overview
The SMBJ150CA-13 is a Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a 150V reverse standoff voltage and provides 243V maximum clamping voltage at peak pulse current. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 150V |
| Voltage - Breakdown (Min) | 167V |
| Voltage - Clamping (Max) @ Ipp | 243V |
| Current - Peak Pulse (10/1000µs) | 2.5A |
| Power - Peak Pulse | 600W |
| Package / Case | DO-214AA, SMB |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -55°C ~ 150°C (TJ) |
| Bidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitution eligibility for the SMBJ150CA-13 is determined by strict electrical parameter matching within the Transient Voltage Suppressors category. The critical parameters defining substitutability are:
- Voltage - Reverse Standoff (Typ): 150V
- Voltage - Clamping (Max) @ Ipp: 243V
- Current - Peak Pulse (10/1000µs): 2.5A
- Power - Peak Pulse: 600W
- Package / Case: DO-214AA, SMB
- Mounting Type: Surface Mount
- Bidirectional Channels: 1
Parts meeting all these electrical and mechanical specifications are classified as direct equivalents. Packaging format (bulk vs. tape & reel) does not affect electrical substitutability but may impact procurement and assembly workflows.
Parameter Comparison
| Parameter | SMBJ150CA-13 (Main) | SMBJ150CA-13-F | SMBJ150CA (MDD) |
|---|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | MDD |
| Voltage - Reverse Standoff (Typ) | 150V | 150V | 150V |
| Voltage - Breakdown (Min) | 167V | 167V | 167V |
| Voltage - Clamping (Max) @ Ipp | 243V | 243V | 243V |
| Current - Peak Pulse (10/1000µs) | 2.5A | 2.5A | 2.5A |
| Power - Peak Pulse | 600W | 600W | 600W |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature Range | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -50°C ~ 150°C (TJ) |
| Product Status | Discontinued | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant |
| Packaging Format | Bulk | Tape & Reel (TR) | Bulk |
Engineering Selection Recommendations
SMBJ150CA-13-F (Diodes Incorporated) is the primary equivalent substitute. This part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance. The tape & reel packaging format is standard for automated assembly processes.
SMBJ150CA (MDD) provides an alternative equivalent with identical electrical performance and ROHS3 compliance. The operating temperature minimum of -50°C versus -55°C on the original part represents a minor constraint suitable for applications not requiring extended low-temperature operation. Bulk packaging format is available.
Both substitutes are electrically and mechanically interchangeable with the SMBJ150CA-13 for applications requiring 150V standoff protection with 243V clamping voltage and 2.5A peak pulse current in SMB package format.
Frequently Asked Questions (FAQ)
Q: Can SMBJ150CA-13-F replace SMBJ150CA-13 in existing designs?
A: Yes. SMBJ150CA-13-F maintains all critical electrical parameters (150V standoff, 243V clamping, 2.5A peak pulse) and identical SMB package configuration. The only difference is packaging format (tape & reel vs. bulk) and improved compliance status.
Q: What is the difference between SMBJ150CA-13 and SMBJ150CA (MDD)?
A: Both parts share identical electrical specifications and SMB package format. The MDD variant has a minimum operating temperature of -50°C compared to -55°C on the original. For applications operating above -50°C, this difference is not a constraint.
Q: Why is SMBJ15CA not listed as a direct substitute?
A: SMBJ15CA operates at 15V reverse standoff with 24.4V clamping voltage and 24.6A peak pulse current. These electrical parameters differ fundamentally from the 150V/243V/2.5A specifications of SMBJ150CA-13 and are not electrically equivalent.
Q: Does packaging format affect electrical performance?
A: No. Tape & reel and bulk packaging formats contain identical die and electrical characteristics. Packaging selection is determined by assembly process requirements and procurement logistics, not circuit performance.
Q: Are the substitute parts RoHS compliant?
A: SMBJ150CA-13-F and SMBJ150CA (MDD) are both ROHS3 compliant. The original SMBJ150CA-13 is RoHS non-compliant. Compliance requirements should be evaluated against application and regulatory standards.
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