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SMBJ26CA-TP Equivalent & Substitute Parts
Part Overview
The SMBJ26CA-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a 26V reverse standoff voltage and provides 42.1V maximum clamping voltage at peak pulse current. The part is actively produced, RoHS3 compliant, and available in DO-214AA (SMB) packaging with Tape & Reel distribution. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.
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) | 14.2 | A |
| Power - Peak Pulse | 600 | W |
| Package / Case | DO-214AA, SMB | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -55 to 175 | °C (TJ) |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SMBJ26CA-TP are qualified based on the following electrical and mechanical parameters:
Critical Matching Parameters:
- Voltage - Reverse Standoff (Typ): 26V
- Voltage - Breakdown (Min): 28.9V
- Voltage - Clamping (Max) @ Ipp: 42.1V
- Current - Peak Pulse (10/1000µs): 14.2A minimum
- Power - Peak Pulse: 600W
- Package / Case: DO-214AA, SMB
- Mounting Type: Surface Mount
- Type: Zener, Bidirectional, 1 Channel
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Substitution Categories:
Direct Substitutes maintain all critical electrical parameters within specified tolerances and are functionally interchangeable:
- SMBJ26CA (EVVO Semi)
- SMBJ26CA-13-F (Diodes Incorporated)
- SMBJ26CA-TR (STMicroelectronics)
- TV06B260JB-G (Comchip Technology)
Similar Substitute meets all critical electrical parameters with additional automotive-grade qualification:
- SZ1SMB26CAT3G (Littelfuse Inc.)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Package / Case | Operating Temperature | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| SMBJ26CA-TP | Micro Commercial Co | 26V | 28.9V | 42.1V | 14.2A | 600W | DO-214AA, SMB | -55 to 175°C | ROHS3 Compliant |
| SMBJ26CA | EVVO Semi | 26V | 28.9V | 42.1V | 14.3A | 600W | DO-214AA, SMB | -65 to 150°C | ROHS3 Compliant |
| SMBJ26CA-13-F | Diodes Incorporated | 26V | 28.9V | 42.1V | 14.2A | 600W | DO-214AA, SMB | -55 to 150°C | ROHS3 Compliant |
| SMBJ26CA-TR | STMicroelectronics | 26V | 28.9V | 42.1V | 14.9A | 600W | DO-214AA, SMB | -55 to 150°C | ROHS3 Compliant |
| TV06B260JB-G | Comchip Technology | 26V | 28.9V | 42.1V | 14.25A | 600W | DO-214AA, SMB | Not specified | ROHS3 Compliant |
| SZ1SMB26CAT3G | Littelfuse Inc. | 26V | 28.9V | 42.1V | 14.2A | 600W | DO-214AA, SMB | -65 to 150°C | ROHS3 Compliant |
Engineering Selection Recommendations
All substitute parts listed maintain active product status and ROHS3 compliance, meeting the regulatory requirements of the original SMBJ26CA-TP. Selection among direct substitutes depends on packaging availability and supply chain requirements:
SMBJ26CA (EVVO Semi) offers the highest inventory availability (55,200 pcs) with Cut Tape and Digi-Reel packaging options, supporting flexible procurement quantities.
SMBJ26CA-13-F (Diodes Incorporated) provides Tape & Reel packaging with 23,522 pcs in stock and matches the original operating temperature lower bound of -55°C.
SMBJ26CA-TR (STMicroelectronics) delivers the highest peak pulse current rating (14.9A) with 2,800 pcs available, suitable for applications requiring maximum transient suppression margin.
TV06B260JB-G (Comchip Technology) maintains all critical electrical parameters with 12,644 pcs in stock and Tape & Reel packaging.
SZ1SMB26CAT3G (Littelfuse Inc.) is qualified to AEC-Q101 automotive standards with additional capacitance specification (330pF @ 1MHz), appropriate for automotive-grade applications requiring enhanced reliability documentation.
Frequently Asked Questions (FAQ)
Q: Can SMBJ26CA-TP be replaced with any of the listed substitute parts?
A: Yes. All listed parts maintain identical voltage ratings (26V reverse standoff, 28.9V breakdown minimum, 42.1V clamping maximum), peak pulse current of 14.2A or higher, 600W peak pulse power, DO-214AA SMB packaging, surface-mount configuration, and ROHS3 compliance. Electrical performance is functionally equivalent.
Q: What is the difference between direct substitutes and similar substitutes?
A: Direct substitutes (SMBJ26CA, SMBJ26CA-13-F, SMBJ26CA-TR, TV06B260JB-G) are standard industrial-grade TVS diodes meeting all specified parameters. The similar substitute SZ1SMB26CAT3G includes AEC-Q101 automotive qualification and documented capacitance specification, making it suitable for automotive applications requiring enhanced qualification traceability.
Q: Are there operating temperature differences between the main part and substitutes?
A: Yes. The SMBJ26CA-TP operates from -55°C to 175°C. SMBJ26CA and SZ1SMB26CAT3G extend the lower temperature range to -65°C but limit the upper range to 150°C. SMBJ26CA-13-F and SMBJ26CA-TR operate from -55°C to 150°C. Select based on your application's thermal requirements.
Q: Does packaging format affect substitution?
A: All parts use DO-214AA (SMB) surface-mount packaging. Packaging distribution formats differ: SMBJ26CA offers Cut Tape and Digi-Reel options; SMBJ26CA-TP, SMBJ26CA-13-F, TV06B260JB-G, and SZ1SMB26CAT3G use Tape & Reel. Select based on your assembly process and quantity requirements.
Q: Which substitute offers the best peak pulse current performance?
A: SMBJ26CA-TR (STMicroelectronics) provides 14.9A peak pulse current, exceeding the original 14.2A specification. This offers additional margin for transient suppression in high-stress applications.
Q: Is the SZ1SMB26CAT3G suitable for non-automotive applications?
A: Yes. SZ1SMB26CAT3G meets all electrical requirements for general-purpose TVS applications. The AEC-Q101 qualification is an additional feature that does not restrict its use in standard industrial or consumer applications.
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