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SMBJ100CA-M3/5B Equivalent & Substitute Parts
Part Overview
The SMBJ100CA-M3/5B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and provides transient overvoltage protection for general-purpose applications. The part is active and widely available with 1057 units in current inventory. Substitute parts are necessary to address packaging preferences, manufacturer availability, or specific operational temperature requirements while maintaining electrical equivalence.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 100V |
| Voltage - Breakdown (Min) | 111V |
| Voltage - Clamping (Max) @ Ipp | 162V |
| Current - Peak Pulse (10/1000µs) | 3.7A |
| Power - Peak Pulse | 600W |
| Operating Temperature Range | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | DO-214AA, SMB |
| Type | Zener |
| Bidirectional Channels | 1 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the SMBJ100CA-M3/5B is determined by the following critical parameters:
- Voltage - Reverse Standoff (Typ): 100V
- Voltage - Breakdown (Min): 111V
- Voltage - Clamping (Max) @ Ipp: 162V
- Current - Peak Pulse (10/1000µs): 3.7A (±0.1A tolerance acceptable)
- Power - Peak Pulse: 600W
- Package / Case: DO-214AA, SMB
- Mounting Type: Surface Mount
- Type: Zener, Bidirectional
Parts meeting all these electrical and mechanical criteria are direct equivalents regardless of manufacturer, packaging format (Tape & Reel, Cut Tape, Bulk), or minor operational temperature variations. Parts with different voltage ratings (SMBJ110CA, SMBJ120CA) are listed as manufacturer-recommended alternatives for applications requiring higher voltage protection but are not direct electrical equivalents.
Parameter Comparison
| Part Number | Manufacturer | Vwm (Typ) | Vbr (Min) | Vc (Max) | Ipp (A) | Ppk (W) | Temp Range | Package | Status |
|---|---|---|---|---|---|---|---|---|---|
| SMBJ100CA-M3/5B | Vishay | 100V | 111V | 162V | 3.7A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
| SMBJ100CA-E3/52 | Vishay | 100V | 111V | 162V | 3.7A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
| SMBJ100CA | Good-Ark Semiconductor | 100V | 111V | 162V | 3.7A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
| SMBJ100CA-13-F | Diodes Incorporated | 100V | 111V | 162V | 3.7A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
| SMBJ100CA-TP | Micro Commercial Co | 100V | 111V | 162V | 3.7A | 600W | -55°C ~ 175°C | DO-214AA (SMB) | Active |
| SMBJ100CA-TR | STMicroelectronics | 100V | 111V | 162V | 3.8A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
| SMBJ110CA | Fairchild Semiconductor | 110V | 122V | 177V | 3.4A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
| SMBJ120CA | Meritek | 120V | 133V | 193V | 3.11A | 600W | -55°C ~ 150°C | DO-214AA (SMB) | Active |
Engineering Selection Recommendations
Direct electrical equivalents (SMBJ100CA-E3/52, SMBJ100CA, SMBJ100CA-13-F, SMBJ100CA-TP, SMBJ100CA-TR) maintain identical voltage protection characteristics and are suitable for one-to-one replacement. All listed parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.
SMBJ100CA-TP offers an extended operating temperature range (-55°C ~ 175°C) compared to the primary part (-55°C ~ 150°C), providing additional thermal margin for high-temperature applications.
SMBJ100CA-TR (STMicroelectronics) specifies 3.8A peak pulse current versus 3.7A for the primary part, representing a minor performance enhancement within acceptable tolerance.
SMBJ110CA and SMBJ120CA are manufacturer-recommended alternatives for applications requiring higher voltage suppression thresholds. These parts are not direct substitutes due to different voltage ratings and must be selected only when circuit protection requirements exceed 100V standoff voltage.
Frequently Asked Questions (FAQ)
Q: Can SMBJ100CA-E3/52 replace SMBJ100CA-M3/5B directly?
A: Yes. Both parts share identical electrical specifications (100V standoff, 162V clamping, 3.7A peak pulse, 600W peak power) and DO-214AA packaging. The difference is packaging format: SMBJ100CA-E3/52 is supplied in Cut Tape (CT) while SMBJ100CA-M3/5B is Tape & Reel (TR). Verify your assembly equipment compatibility with the packaging format.
Q: What is the difference between SMBJ100CA-TP and SMBJ100CA-M3/5B?
A: SMBJ100CA-TP has an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 150°C). Electrical specifications are identical. Select SMBJ100CA-TP for applications operating above 150°C junction temperature.
Q: Why are SMBJ110CA and SMBJ120CA listed as alternatives?
A: These parts provide higher voltage protection (110V and 120V standoff respectively) and are manufacturer-recommended for circuits requiring greater transient suppression margins. They are not direct replacements and must be selected based on specific circuit voltage requirements.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed parts meet ROHS3 compliance and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the primary part's environmental certifications.
Q: Can I use SMBJ100CA-TR as a direct replacement?
A: Yes. SMBJ100CA-TR (STMicroelectronics) is electrically equivalent with 3.8A peak pulse current (versus 3.7A), representing a minor performance improvement. DO-214AA packaging and operating temperature range (-55°C ~ 150°C) match the primary part.
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