Vishay General Semiconductor - Diodes Division SMCJ13AHM3_A/H
- Part No.:
- SMCJ13AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13AHM3_A/H.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMCJ13AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 21.5 V maximum clamping voltage at 69.8 A peak pulse current and 13 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supply rails.
For engineers reviewing the SMCJ13AHM3_A/H datasheet, SMCJ13AHM3_A/H pinout, SMCJ13AHM3_A/H application, or SMCJ13AHM3_A/H equivalent, key selection criteria include unidirectional polarity, 13 V stand-off voltage, 21.5 V clamping under 10/1000 μs surge, AEC-Q101 qualification, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode operates as a fast-acting shunt protector, responding within picoseconds to transient overvoltages induced by inductive switching or ESD events. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, while the SMC package supports automated placement and meets MSL level 1 reflow requirements.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead). It delivers 6.5 W steady-state power dissipation at TA = 50 °C and withstands 200 A non-repetitive forward surge current (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 13 V - Maximum continuous reverse voltage before clamping begins; sets protection threshold for 12 V nominal systems. |
| Breakdown Voltage (VBR) | 14.4 V min / 15.9 V max at 1 mA - Confirmed avalanche onset range defining reliable turn-on margin. |
| Clamping Voltage (VC) | 21.5 V at 69.8 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge event. |
| Peak Pulse Power (PPPM) | 1500 W - Sustains high-energy transients without failure per standard waveform definition. |
| Leakage Current (ID) | 1.0 μA max at 13 V - Ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| Operating Temperature | -55 °C to +150 °C - Supports under-hood automotive and industrial environments without derating. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement. |
Pinout & Package
SMCJ13AHM3_A/H uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.305" × 0.220" body, cathode band marking on unidirectional variant. Mounting requires 8.0 mm × 8.0 mm copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to system ground or return path; completes clamping loop during transient conduction. |
| Cathode | High-side transient input | Connected to protected line (e.g., 12 V rail or sensor input); band-marked end accepts positive surge energy. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control units and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JESD201 Class 2 whisker resistance requirements. |
| Low incremental surge resistance | Enables tighter clamping voltage window and reduced stress on downstream silicon. |
| Very fast response time | Sub-nanosecond avalanche turn-on limits voltage overshoot during ESD or lightning-induced surges. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking preconditioning. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt TVS diode placed between power rail and ground, conducting only during overvoltage events. Use Value: Clamps transients to ≤21.5 V, preventing damage to microcontrollers and CAN transceivers rated for 24 V absolute max. | Use Scenario: Safeguarding analog output lines of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional suppressor on signal line referenced to local ground, absorbing coupling noise from nearby motor drives. Use Value: Limits induced spikes to <22 V while adding <1 pF capacitance, preserving 10 kHz signal bandwidth. |
| DC-DC Converter Input Protection | Motor Drive Gate Driver Protection |
Use Scenario: Front-end surge suppression for buck converter inputs fed from 24 V industrial supplies. IC Role / Device Role / Timing Role: Primary clamping device on VIN pin, coordinated with upstream fuse and downstream ceramic filtering. Use Value: Absorbs 1500 W pulses without degradation, maintaining 13 V hold-off to avoid false triggering during normal 24 V ±10% operation. | Use Scenario: Shielding high-side gate drivers from Miller-induced voltage spikes during IGBT switching. IC Role / Device Role / Timing Role: Fast-acting clamp across gate-to-source, referenced to driver IC ground plane. Use Value: Responds in <1 ns to limit VGS excursions to safe levels, preventing unintended turn-on and shoot-through failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13AHE3_A/H | Lower PPPM (400 W), same VWM/VBR/VC, SMA package (smaller footprint, higher RθJA) | Not suitable for >500 W surge environments; limited to low-energy signal-line protection | Select when board space is constrained and surge threat level is classified as IEC 61000-4-2 Level 2 only. |
| SMCJ13AHE3_A/H | Same electrical specs but RoHS-compliant commercial grade (E3), not halogen-free or AEC-Q101 qualified | Lacks automotive qualification and whisker resistance certification; unsuitable for under-hood deployment | Choose for cost-sensitive industrial controls where AEC-Q101 and halogen-free mandates do not apply. |
Compared with SMCJ13AHM3_A/H, SMAJ13AHE3_A/H trades surge robustness for size reduction, while SMCJ13AHE3_A/H retains identical protection performance but omits automotive-grade reliability validation and halogen-free compliance.
Availability
SMCJ13AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor modules, and DC-DC converter designs requiring stable component supply with full AEC-Q101 traceability and halogen-free compliance.
Supply support for SMCJ13AHM3_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, MOSFETs, and protection devices with emphasis on reliability and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where 1500 W surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMCJ13AHM3_A/H at its rated peak pulse current?
The SMCJ13AHM3_A/H has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 69.8 A under the standardized 10/1000 μs waveform. This value is measured at the device terminals with specified PCB pad layout (8.0 mm × 8.0 mm copper) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ13AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is SMCJ13AHM3_A/H qualified for automotive applications?
Yes, SMCJ13AHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in the SMCJ5.0A–SMCJ188CA datasheet (Rev. 09-Jan-2024, Doc. #88394). This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life-making SMCJ13AHM3_A/H suitable for engine control, body electronics, and ADAS subsystems where reliability under vibration and thermal extremes is critical.
What does the "HM3" suffix indicate in SMCJ13AHM3_A/H?
The "HM3" suffix in SMCJ13AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering information, HM3 devices meet JESD201 Class 2 whisker resistance, UL 94 V-0 flammability, and material compliance per www.vishay.com/doc?99912. This distinguishes SMCJ13AHM3_A/H from E3 (RoHS commercial) and HE3 (AEC-Q101 but not halogen-free) variants, ensuring full environmental and automotive reliability compliance.
How does SMCJ13AHM3_A/H differ from bidirectional SMCJ13CA variants?
SMCJ13AHM3_A/H is unidirectional, with polarity marked by a cathode band and functional only in reverse-bias clamping mode; it conducts surge current from cathode to anode. In contrast, SMCJ13CA is bidirectional, symmetric in both directions, and lacks polarity marking. The SMCJ13AHM3_A/H offers lower leakage (<1.0 μA at 13 V) and is preferred for DC rail protection, whereas SMCJ13CA suits AC-coupled or floating signal lines where polarity reversal may occur.
What thermal design guidance applies to SMCJ13AHM3_A/H in PCB layout?
For optimal thermal performance, SMCJ13AHM3_A/H must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in the Vishay datasheet. This pad area enables the rated 1500 W peak pulse power handling and limits junction temperature rise. Reducing pad size increases thermal resistance and risks parametric shift or failure during repeated surges. The device's RθJA is 75 °C/W and RθJL is 15 °C/W-both values assume adherence to this pad layout and standard FR-4 substrate.
SMCJ13AHM3_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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 69.8A
- 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)
SMCJ13AHM3_A/H FAQ
1.How can I place an order for SMCJ13AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13AHM3_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 SMCJ13AHM3_A/H reliable?
The price and inventory of SMCJ13AHM3_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 SMCJ13AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ13AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13AHM3_A/H?
SMCJ13AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13AHM3_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 SMCJ13AHM3_A/H?
For technical support, including SMCJ13AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13AHM3_A/H requirements.
6.How does Aetrix verify that SMCJ13AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ13AHM3_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 SMCJ13AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ13AHM3_A/H?
All SMCJ13AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13AHM3_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 SMCJ13AHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ13AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ13AHM3_A/H Tags

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