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Vishay General Semiconductor - Diodes Division SMCJ100CAHM3/H
- Part No.:
- SMCJ100CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100CAHM3/H.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,376
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Product details
Overview
SMCJ100CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 100 V standoff voltage (VWM), 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with 10/1000 µs waveform.
For engineers reviewing the SMCJ100CAHM3/H datasheet, SMCJ100CAHM3/H pinout, SMCJ100CAHM3/H application, or SMCJ100CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification for automotive use, halogen-free RoHS compliance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC signal lines and differential buses without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, critical for consistent clamping under repetitive transients.
The device is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 75 °C/W) and RθJL = 15 °C/W support reliable power dissipation in compact PCB layouts with minimal heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 111 V / 123 V at 1 mA - Confirmed breakdown voltage range ensuring predictable turn-on threshold |
| VC @ IPPM | 162 V at 9.3 A - Clamping voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 1500 W - Peak surge power handling capacity under standardized transient waveform |
| ID @ VWM | 1.0 µA - Low leakage current preserves signal integrity and minimizes standby power loss |
| TJ max | +150 °C - Enables operation in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint for effective heat transfer |
Pinout & Package
SMCJ100CAHM3/H uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two coplanar matte tin-plated terminals. No polarity marking is present, consistent with bidirectional functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | One terminal of bidirectional PN junction | Provides symmetrical conduction path - interchangeable with cathode in layout |
| Cathode | Other terminal of bidirectional PN junction | No functional distinction from anode; device operates identically in either orientation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential interfaces without external polarity management |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets global environmental regulations and supports lead-free reflow soldering (260 °C peak) |
| Low incremental surge resistance | Ensures tight clamping voltage window across varying surge currents, improving system-level ESD/lightning immunity |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow processing without dry-pack requirements |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching signal conditioning ICs. Use Value: With 162 V clamping at 9.3 A and AEC-Q101 qualification, SMCJ100CAHM3/H maintains signal integrity while surviving repeated 12 V system surges up to 1500 W. | Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between input line and common rail to absorb fast-rising transients (<1 ns rise time) induced by relay bounce. Use Value: 100 V VWM ensures no conduction during normal 24 V operation, while 1500 W PPPM handles worst-case 10/1000 µs surges without degradation. |
| Telecom Line Interface Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS mounted at board edge, coordinated with secondary GDT or MOV stages for staged energy diversion. Use Value: Symmetrical 111–123 V VBR and 162 V VC enable balanced clamping on differential pairs, preserving common-mode rejection ratio during surge events. | Use Scenario: Adding secondary-side transient suppression in AC/DC adapters for smart home devices to meet IEC 61000-4-5 Level 3 (1 kV/2 kV) surge immunity. IC Role / Device Role / Timing Role: Final-stage TVS across DC output rails to clamp residual spikes escaping primary-side filtering and transformer coupling. Use Value: Halogen-free SMCJ100CAHM3/H supports eco-design compliance while delivering 1500 W surge capacity in space-constrained SMC footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC100CA | Same VWM (100 V) and PPPM (1500 W), but in smaller SMA (DO-214AC) package with higher RθJA (100 °C/W) | Limited to lower-duty-cycle surges due to reduced thermal mass; unsuitable for automotive under-hood use | Select when board space is constrained and thermal budget allows higher junction temperature rise |
| SMCJ100CAHE3/H | Identical electrical specs and SMC package, but RoHS-compliant without halogen-free certification; not AEC-Q101 qualified | Restricted to commercial-grade applications where automotive qualification is not required | Choose for cost-sensitive industrial or consumer designs lacking automotive validation requirements |
Compared with SAC100CA and SMCJ100CAHE3/H, the SMCJ100CAHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and SMC thermal performance-making it the only option qualified for high-reliability automotive powertrain and chassis systems requiring full regulatory compliance.
Availability
SMCJ100CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection circuits, and consumer power adapter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for SMCJ100CAHM3/H 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness against ISO 7637-2, IEC 61000-4-5, and lightning-induced surges is mandatory.
FAQ
What does the 'CA' suffix indicate in SMCJ100CAHM3/H?
The 'CA' suffix in SMCJ100CAHM3/H denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities. This eliminates the need for polarity-aware placement and enables direct protection of AC-coupled signals, differential buses like RS-485, and ungrounded sensor outputs without external circuitry. The SMCJ100CAHM3/H clamps equally above and below ground reference.
Is SMCJ100CAHM3/H suitable for automotive applications?
Yes, SMCJ100CAHM3/H is AEC-Q101 qualified and specifically designed for automotive use. Its halogen-free, RoHS-compliant construction, MSL Level 1 rating, and guaranteed operation from -55 °C to +150 °C make it appropriate for engine control units, body electronics, ADAS sensors, and infotainment systems. The 'HM3' suffix confirms this qualification, distinguishing it from commercial-grade variants.
How does the clamping voltage of SMCJ100CAHM3/H compare to its standoff voltage?
The SMCJ100CAHM3/H has a standoff voltage (VWM) of 100 V and a maximum clamping voltage (VC) of 162 V at 9.3 A peak pulse current. This 62 V margin ensures protected circuits remain within safe operating limits during transients. The clamping occurs rapidly (sub-nanosecond response) once VWM is exceeded, and VC remains stable across the full specified IPPM range due to low incremental surge resistance.
What is the thermal performance of SMCJ100CAHM3/H on standard PCB pads?
When mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, SMCJ100CAHM3/H achieves a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W. This allows sustained 6.5 W power dissipation at TA = 50 °C and supports reliable operation during repetitive surge events without exceeding the +150 °C maximum junction temperature.
Can SMCJ100CAHM3/H replace unidirectional TVS diodes in existing designs?
No - SMCJ100CAHM3/H is strictly bidirectional and lacks polarity marking, so it cannot function as a drop-in replacement for unidirectional TVS diodes like SMCJ100AHM3/H. Substituting it would eliminate forward conduction blocking capability and risk unintended current paths in DC-biased circuits. Always verify circuit topology: use SMCJ100CAHM3/H only where symmetrical clamping is required and polarity independence is beneficial.
SMCJ100CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 9.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ100CAHM3/H FAQ
1.How can I place an order for SMCJ100CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100CAHM3/H 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 SMCJ100CAHM3/H reliable?
The price and inventory of SMCJ100CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ100CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100CAHM3/H?
SMCJ100CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100CAHM3/H 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 SMCJ100CAHM3/H?
For technical support, including SMCJ100CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100CAHM3/H requirements.
6.How does Aetrix verify that SMCJ100CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ100CAHM3/H 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 SMCJ100CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ100CAHM3/H?
All SMCJ100CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100CAHM3/H, 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 SMCJ100CAHM3/H part is unused and in its original packaging.
Return procedure for SMCJ100CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100CAHM3/H Tags
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