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Vishay General Semiconductor - Diodes Division SMCJ100CAHM3_A/H
- Part No.:
- SMCJ100CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100CAHM3_A/H.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,113
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Product details
Overview
SMCJ100CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 100 V standoff voltage (VWM), 1500 W peak pulse power (PPPM), and 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM). It protects sensitive ICs, MOSFETs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients and lightning-induced surges.
For engineers reviewing the SMCJ100CAHM3_A/H datasheet, SMCJ100CAHM3_A/H pinout, SMCJ100CAHM3_A/H application, or SMCJ100CAHM3_A/H equivalent, this part delivers AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under 10/1000 µs waveform conditions - critical for automotive-grade ESD/surge resilience validation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) ranging from 111 V to 123 V at 1 mA test current, enabling robust overvoltage clamping regardless of transient polarity. Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients without affecting signal integrity on protected lines.
Thermal design is supported by a junction-to-lead thermal resistance (RθJL) of 15 °C/W and a junction-to-ambient rating (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads. The device sustains operation from −55 °C to +150 °C junction temperature, meeting automotive under-hood and industrial control environment requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for 12 V–48 V DC bus protection. |
| VBR min/max | 111 V / 123 V at 1 mA - Confirmed bidirectional breakdown threshold; ensures symmetrical clamping onset across polarity. |
| VC @ IPPM | 162 V at 9.3 A - Clamped voltage during 10/1000 µs surge; limits stress on downstream components to safe margin below failure thresholds. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity testing. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated standoff voltage; negligible power loss and minimal impact on high-impedance sensor bias networks. |
| TJ max. | +150 °C - Maximum junction temperature; enables deployment in engine control units and motor drive inverters without derating. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place and reflow. |
Pinout & Package
SMCJ100CAHM3_A/H uses the SMC (DO-214AB) package: a two-terminal, bidirectional device with no polarity marking. Both terminals are electrically symmetrical; neither functions as anode or cathode in normal operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Surge Input/Output Node | Connected to line under protection (e.g., CAN_H or power rail); conducts transient current bidirectionally to ground reference. |
| Terminal 2 | Surge Input/Output Node | Connected to same protected line or referenced to system ground; completes symmetrical clamping path with Terminal 1. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain and ADAS modules; supports zero-defect reliability requirements. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20; eliminates brominated flame retardants for safer end-of-life processing. |
| MSL Level 1 | Unlimited floor life at ≤30 °C/85 % RH; eliminates bake-out requirement prior to reflow soldering. |
| Glass passivated junction | Enhances long-term stability and moisture resistance; prevents parameter drift under humid or thermally cycled environments. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage overshoot during surge events; preserves margin between clamped voltage and IC absolute maximum ratings. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between power rail and chassis ground to shunt surge energy before it reaches MCU or analog front-end. Use Value: Limits peak rail voltage to ≤162 V during 1500 W surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic and 12 V-rated drivers. |
Use Scenario: Shielding 4–20 mA current loop or RS-485 differential pair in factory automation PLC I/O modules from EFT and surge coupling. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) TVS connected across signal pair and ground to suppress common-mode transients without distorting data edges. Use Value: Maintains signal fidelity up to 10 Mbps while clamping induced spikes to <162 V, ensuring uninterrupted communication during EMC testing. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) from lightning-induced surges entering via 48 V DC input lines. IC Role / Device Role / Timing Role: Primary-level TVS installed upstream of DC-DC converter input to absorb >1 kV/500 A transients defined in IEC 61000-4-5. Use Value: Withstands repeated 1500 W surges without degradation, extending field lifetime beyond 10 years in outdoor deployments. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machine control boards during commutation. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback before it couples into microcontroller GPIO or relay driver ICs. Use Value: Reduces radiated emissions by >15 dB in 30–200 MHz band and eliminates false resets caused by >100 V transients on shared PCB ground planes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (150 °C/W). | Suitable only for lower-energy transients (IEC 61000-4-2 contact discharge); not rated for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge threat level is limited to ESD or low-energy switching noise. |
| SMCJ100AHE3_A/H | Unidirectional version; identical VWM, PPPM, and VC but requires correct polarity orientation and includes cathode band marking. | Applicable where transients are known to be unidirectional (e.g., DC power rails with defined ground reference). | Choose only if system architecture guarantees consistent polarity and avoids risk of reverse-bias misapplication. |
Compared with SMAJ100CA and SMCJ100AHE3_A/H, the SMCJ100CAHM3_A/H provides superior surge robustness (1500 W vs. 400 W), automotive qualification (AEC-Q101), and halogen-free compliance - making it the preferred choice for high-reliability 12 V–48 V systems exposed to harsh electrical environments.
Availability
SMCJ100CAHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power supplies, and consumer appliance motor drives requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ100CAHM3_A/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series was engineered for high-power transient suppression in automotive, industrial, and telecom infrastructure - delivering consistent clamping performance, AEC-Q101 validation, and robust thermal behavior under real-world surge stress.
FAQ
What is the clamping voltage of SMCJ100CAHM3_A/H at its rated peak pulse current?
The SMCJ100CAHM3_A/H has a maximum clamping voltage (VC) of 162 V at 9.3 A peak pulse current (IPPM), measured under standardized 10/1000 µs waveform conditions. This value ensures protected circuits remain within safe operating limits during high-energy transients. The SMCJ100CAHM3_A/H maintains this clamping performance across its full operating temperature range (−55 °C to +150 °C), with minimal variation due to its low temperature coefficient of VBR (0.107 %/°C).
Is SMCJ100CAHM3_A/H suitable for automotive applications?
Yes, SMCJ100CAHM3_A/H is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix HM3_X. It meets stringent reliability requirements for powertrain, body electronics, and ADAS modules, including thermal cycling, humidity resistance, and surge endurance. The SMCJ100CAHM3_A/H is validated for ISO 7637-2 Pulse 5a load dump protection and complies with RoHS and halogen-free standards required by Tier 1 suppliers.
How does the bidirectional configuration of SMCJ100CAHM3_A/H affect circuit layout?
The SMCJ100CAHM3_A/H has no polarity marking and operates identically in both directions, eliminating orientation constraints during PCB placement. This simplifies layout for differential lines (e.g., CAN, RS-485) or floating power domains where transient polarity is unpredictable. Unlike unidirectional variants such as SMCJ100AHE3_A/H, the SMCJ100CAHM3_A/H requires no cathode alignment check, reducing assembly error risk and supporting automated optical inspection (AOI) compatibility.
What is the thermal resistance profile of SMCJ100CAHM3_A/H, and how does it impact PCB design?
The SMCJ100CAHM3_A/H has a junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To achieve rated power dissipation, PCB layout must provide adequate copper area and thermal vias to minimize temperature rise. The SMCJ100CAHM3_A/H supports continuous operation up to +150 °C junction temperature, but sustained ambient temperatures above +105 °C require derating per Figure 2 in the datasheet.
Does SMCJ100CAHM3_A/H meet moisture sensitivity and reflow requirements for high-volume manufacturing?
Yes, SMCJ100CAHM3_A/H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/85 % RH and withstands peak reflow temperatures up to 260 °C without preconditioning. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and whisker resistance meets JESD 201 Class 2. These attributes make the SMCJ100CAHM3_A/H fully compatible with standard SMT assembly lines and no-bake production workflows.
SMCJ100CAHM3_A/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:
- 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):
- 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_A/H FAQ
1.How can I place an order for SMCJ100CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100CAHM3_A/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_A/H reliable?
The price and inventory of SMCJ100CAHM3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ100CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100CAHM3_A/H?
SMCJ100CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100CAHM3_A/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_A/H?
For technical support, including SMCJ100CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100CAHM3_A/H requirements.
6.How does Aetrix verify that SMCJ100CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ100CAHM3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ100CAHM3_A/H?
All SMCJ100CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100CAHM3_A/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_A/H part is unused and in its original packaging.
Return procedure for SMCJ100CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100CAHM3_A/H Tags
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