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Vishay General Semiconductor - Diodes Division SMBJ100CA-M3/5B
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- Part No.:
- SMBJ100CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CA-M3/5B.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,447
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Product details
Overview
SMBJ100CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives.
For engineers reviewing the SMBJ100CA-M3/5B datasheet, SMBJ100CA-M3/5B pinout, SMBJ100CA-M3/5B application, or SMBJ100CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance supports operation up to +150 °C junction temperature under defined PCB layout conditions.
The device meets J-STD-020 MSL Level 1 and withstands 260 °C lead-free reflow peaks. It is not AEC-Q101 qualified (M3 suffix denotes commercial-grade halogen-free RoHS compliance only), and its 20 °C/W junction-to-lead thermal resistance enables effective heat transfer to PCB copper when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before significant conduction begins; defines safe working margin below clamping threshold. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during surge events without premature triggering. |
| VC @ IPPM | 162 V at 3.7 A - Clamped voltage seen by protected circuit during full 600 W transient; determines maximum stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; validates suitability for IEC 61000-4-5 Level 4 surge immunity testing. |
| IPPM | 3.7 A - Peak surge current corresponding to VC; used to size series impedance and verify coordination with upstream fusing. |
| Junction Temp. Range | −55 °C to +150 °C - Specifies operational envelope for harsh environments including industrial control cabinets and outdoor telecom enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm max length, compatible with high-speed pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals function as interchangeable anode/cathode pair depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Pin 1 & Pin 2) | Bidirectional surge path | Both terminals serve identically as transient current entry/exit points; no DC polarity dependency - ideal for AC-coupled or floating signal lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates robustness against lightning-induced surges and inductive switching spikes in industrial power supplies. |
| Clamping voltage ≤162 V at 3.7 A | Ensures protected ICs (e.g., microcontrollers, RS-485 transceivers) remain within absolute maximum ratings during worst-case transients. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for global OEM production without compromising surge performance. |
| MSL Level 1, 260 °C reflow compatible | Supports single-pass lead-free assembly without moisture sensitivity concerns or baking preconditioning. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), enhancing protection fidelity for high-speed interfaces. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
|
Use Scenario: Protection of DC bus inputs against back-EMF spikes from contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp ±1 kV surges before they reach rectifier bridges and bulk capacitors. Use Value: Prevents repeated degradation of electrolytic capacitors and MOSFET gate oxide due to repetitive 600 W transients, extending system MTBF. |
Use Scenario: Surge suppression on −48 V DC telecom power distribution boards exposed to lightning coupling via long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS installed at board edge to shunt induced common-mode energy before it propagates into DC/DC converters and line cards. Use Value: Maintains uninterrupted service during IEC 61000-4-5 2 Ω/12 Ω generator tests by limiting residual voltage to <162 V across protected rails. |
| Automated Test Equipment (ATE) | Smart Sensor Signal Conditioning |
|
Use Scenario: Input protection for programmable power supply outputs subjected to accidental short-circuit recovery transients. IC Role / Device Role / Timing Role: Fast-clamping TVS placed directly at output connector to absorb 10/1000 µs surges generated during load disconnection events. Use Value: Eliminates need for external crowbar circuits by providing sub-100 ns response and repeatable clamping performance over >100,000 surge cycles. |
Use Scenario: Protection of analog front-end inputs (e.g., 4–20 mA loop receivers) in factory-floor pressure/temperature sensors. IC Role / Device Role / Timing Role: Bidirectional TVS bridging signal and return lines to suppress ESD and fast transients coupled from adjacent motor cables. Use Value: Reduces field failure rate by preventing latch-up in op-amps and ADCs during 8 kV contact ESD events per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA-E3/5B | Same electrical specs and SMB package; RoHS-compliant but contains brominated flame retardants (non-halogen-free). | Acceptable where halogen-free requirement is not mandated (e.g., non-EU commercial equipment). | Select when cost sensitivity outweighs halogen-free compliance; identical layout and thermal behavior. |
| SMAJ100CA-M3 | Lower 400 W PPPM, larger SMA (DO-214AC) package, 170 V VC at 2.4 A - higher clamping voltage and reduced surge margin. | Suitable only for lower-energy threat environments (e.g., consumer USB ports), not industrial 600 W surges. | Choose only if space constraints prevent SMB footprint use and surge severity is confirmed ≤400 W. |
Compared with SMBJ100CA-M3/5B, the E3/5B variant offers identical protection performance with standard RoHS compliance, while the SMAJ100CA-M3 sacrifices 33 % peak power handling and increases clamping voltage - requiring careful coordination with system-level surge test profiles.
Availability
SMBJ100CA-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, automated test equipment, and smart sensor signal conditioning requiring stable component supply and halogen-free compliance.
Supply support for SMBJ100CA-M3/5B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, surge robustness, and automotive-grade qualification.
The SMBJ series targets high-energy transient suppression in industrial, telecom, and computing infrastructure - engineered for repeatable 600 W clamping performance and seamless integration into automated SMT lines.
FAQ
What is the clamping voltage of SMBJ100CA-M3/5B at its rated peak pulse current?
The SMBJ100CA-M3/5B has a maximum clamping voltage (VC) of 162 V at its rated peak pulse current of 3.7 A (10/1000 µs waveform). This value is measured under standardized test conditions with 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ100CA-M3/5B maintains this clamping performance consistently across its specified operating temperature range.
Is SMBJ100CA-M3/5B suitable for automotive applications requiring AEC-Q101 qualification?
No, SMBJ100CA-M3/5B is not AEC-Q101 qualified. The M3 suffix indicates halogen-free RoHS compliance for commercial-grade use only. For automotive applications, Vishay offers the HM3 variant (e.g., SMBJ100CAHM3_B/I), which carries AEC-Q101 qualification and additional reliability screening. The SMBJ100CA-M3/5B should be used exclusively in industrial, telecom, or computing systems where automotive qualification is not required.
How does the bidirectional design of SMBJ100CA-M3/5B affect its PCB layout compared to unidirectional TVS diodes?
The SMBJ100CA-M3/5B has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. Unlike unidirectional TVS diodes that require cathode alignment toward the protected rail, the SMBJ100CA-M3/5B can be mounted in either direction - simplifying automated assembly and reducing risk of misplacement. Its symmetrical terminal behavior also avoids DC bias dependency, making it ideal for AC signal paths and floating grounds.
What is the thermal resistance from junction to ambient for SMBJ100CA-M3/5B, and how does it impact derating?
The SMBJ100CA-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" copper pads per terminal. This value directly governs power derating above 25 °C ambient: for example, at 75 °C ambient, the device's 5.0 W steady-state power dissipation must be reduced to ~2.5 W. The SMBJ100CA-M3/5B's RθJL of 20 °C/W further supports heat conduction through leads into PCB copper.
Can SMBJ100CA-M3/5B be used in parallel to increase surge current handling?
No, SMBJ100CA-M3/5B should not be paralleled for increased surge current capacity. Minor parametric variations between units - particularly in breakdown voltage (111–123 V range) - cause uneven current sharing during transients, risking thermal runaway in the unit with lower VBR. System-level surge handling must be increased by selecting a higher-rated TVS (e.g., 1.5 kW part) or adding upstream current-limiting impedance. The SMBJ100CA-M3/5B is designed for standalone use per IEC 61000-4-5 coordination guidelines.
SMBJ100CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ100CA-M3/5B FAQ
1.How can I place an order for SMBJ100CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CA-M3/5B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBJ100CA-M3/5B reliable?
The price and inventory of SMBJ100CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ100CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CA-M3/5B?
SMBJ100CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CA-M3/5B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBJ100CA-M3/5B?
For technical support, including SMBJ100CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ100CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ100CA-M3/5B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBJ100CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ100CA-M3/5B?
All SMBJ100CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CA-M3/5B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBJ100CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ100CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CA-M3/5B Tags
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Diodes Incorporated
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