Vishay General Semiconductor - Diodes Division SMCJ6.0AHM3/H
- Part No.:
- SMCJ6.0AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.0AHM3/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMCJ6.0AHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection on power and signal lines. It features a 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 145.6 A peak surge current. It is used in automotive power rail protection where AEC-Q101 qualification and halogen-free construction are required.
For engineers reviewing the SMCJ6.0AHM3/H datasheet, SMCJ6.0AHM3/H pinout, SMCJ6.0AHM3/H application, or SMCJ6.0AHM3/H equivalent, key selection criteria include its 1500 W surge rating, 10.3 V clamping voltage at rated IPPM, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), and SMC (DO-214AB) surface-mount package compatibility with automated assembly.
Technical Context
The SMCJ6.0AHM3/H operates as a unidirectional avalanche diode, responding to transient overvoltages by entering breakdown and clamping the line voltage to a safe level. Its glass-passivated junction ensures stable VBR and low leakage (<1000 µA at 6.0 V), while its low incremental surge resistance enables effective energy diversion during fast transients (e.g., ISO 7637-2 pulses).
Designed for mounting on 8.0 mm × 8.0 mm copper pads per terminal, it achieves thermal resistance of 75 °C/W (junction-to-ambient) and supports continuous operation up to +150 °C junction temperature. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification - critical for automotive electronics under harsh thermal and vibration conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe working range for 5 V–6 V supply rails. |
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA - Confirmed breakdown threshold window; ensures reliable triggering above normal operating voltage but below IC damage thresholds. |
| VC @ IPPM | ≤10.3 V at 145.6 A - Clamping voltage under full 1500 W surge; limits downstream voltage stress during load dump or inductive switching events. |
| PPPM | 1500 W (10/1000 µs) - Peak surge power handling capacity; meets ISO 16750-2 and SAE J1113-11 test levels for automotive environments. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood deployment without derating in high-ambient applications. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint; compatible with IPC-7351B land patterns. |
| Qualification | AEC-Q101 qualified, halogen-free, RoHS-compliant - Meets automotive reliability and environmental requirements per Vishay HM3 suffix definition. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, 2-terminal device. Cathode indicated by molded band on case; anode is unmarked end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line (e.g., battery rail); conducts surge current to ground when VLINE exceeds VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path; completes conduction path during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Handles severe automotive load-dump transients (e.g., ISO 16750-2 Pulse 5a) without failure or parametric shift. |
| AEC-Q101 qualified (HM3) | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per AEC standard. |
| Glass-passivated junction | Ensures stable VBR over time and temperature; reduces parameter drift and improves long-term clamping consistency. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and automotive material restrictions; supports sustainable manufacturing and end-of-life processing. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage overshoot during clamping; protects sensitive 5 V logic and analog front-ends more effectively than higher-ratio TVS devices. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and jump-start surges per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp transients before they reach DC-DC converters or microcontrollers. Use Value: Limits peak voltage to ≤10.3 V during 145.6 A surge, preventing latch-up or gate oxide damage in downstream 5 V/3.3 V ICs. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and inductive kickback from solenoid actuation or cable coupling. Use Value: Sub-100 ns response time and 10.3 V clamping prevent ADC saturation or op-amp input stage damage during 1 kV/500 A surge events. |
| Telecom Power Supply Input | Consumer USB Port Surge Protection |
Use Scenario: Secondary-side overvoltage protection on 48 V telecom rectifier outputs feeding PoE injectors or baseband processors. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after bulk capacitance to absorb residual switching spikes and lightning-induced surges on distribution bus. Use Value: 1500 W rating sustains multiple 10/1000 µs surges without degradation; 75 °C/W RθJA allows operation at 70 °C ambient with minimal derating. |
Use Scenario: Front-end protection for USB 2.0 data lines and VBUS in portable docking stations subjected to user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line only (not data lines), selected for low leakage (<1000 µA) to avoid standby current impact. Use Value: 6.0 V VWM aligns with USB 2.0 VBUS tolerance (4.4–5.25 V nominal), enabling clamping before host controller overvoltage shutdown threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0AHE3/A | Same VWM (6.0 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W). | Not AEC-Q101 qualified; suitable for commercial-grade consumer or industrial boards with lower surge exposure. | Select when space-constrained layout permits smaller SMA and automotive qualification is unnecessary. |
| SMCJ6.0A-M3/57T | Identical electrical specs and SMC package, but M3 suffix indicates halogen-free RoHS compliance without AEC-Q101 qualification. | Lacks automotive reliability validation; appropriate for non-automotive industrial or telecom applications requiring halogen-free materials. | Choose when halogen-free compliance is mandatory but AEC-Q101 testing is not required by end-customer specification. |
Compared with SMCJ6.0AHM3/H, SMAJ6.0AHE3/A offers reduced surge capability and no automotive qualification, while SMCJ6.0A-M3/57T matches form-factor and halogen-free status but omits AEC-Q101 validation - making SMCJ6.0AHM3/H the sole option meeting full automotive-grade surge, thermal, and reliability requirements in one package.
Availability
SMCJ6.0AHM3/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply with guaranteed AEC-Q101 qualification and halogen-free compliance.
Supply support for SMCJ6.0AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in automotive, industrial, and communications systems where robustness and repeatable clamping behavior are essential.
FAQ
What is the clamping voltage of the SMCJ6.0AHM3/H under maximum surge conditions?
The SMCJ6.0AHM3/H clamps to a maximum of 10.3 V when subjected to its rated peak pulse current of 145.6 A (10/1000 µs waveform). This value is measured at the device terminals under standardized test conditions and reflects the upper limit of voltage seen by downstream circuitry during a full-power transient event. The SMCJ6.0AHM3/H maintains this clamping performance across its qualified operating temperature range.
Is the SMCJ6.0AHM3/H suitable for automotive applications?
Yes, the SMCJ6.0AHM3/H is explicitly AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay documentation. It meets automotive reliability requirements including temperature cycling, mechanical shock, and humidity testing. The SMCJ6.0AHM3/H is intended for use in engine control units, body electronics, and ADAS modules where sustained operation at +125 °C ambient and immunity to load-dump transients are mandatory.
How does the SMCJ6.0AHM3/H differ from the standard SMCJ6.0A variant?
The SMCJ6.0AHM3/H differs from generic SMCJ6.0A variants in three verified ways: it carries the HM3 suffix confirming halogen-free and RoHS-compliant construction; it is AEC-Q101 qualified (not just compliant); and it is supplied in 7" tape-and-reel (H packaging code). Standard SMCJ6.0A parts may lack qualification, use different plating, or ship in alternate reel formats - making SMCJ6.0AHM3/H the only version certified for automotive production use.
What is the thermal resistance of the SMCJ6.0AHM3/H in typical PCB mounting?
The SMCJ6.0AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended pad layout - defined as 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes FR-4 board material and natural convection cooling. The SMCJ6.0AHM3/H also exhibits RθJL = 15 °C/W (junction-to-lead), supporting efficient heat transfer to adjacent copper pours or ground planes.
Does the SMCJ6.0AHM3/H have bidirectional capability?
No, the SMCJ6.0AHM3/H is a unidirectional transient voltage suppressor, as indicated by the "A" (not "CA") suffix in its part number. It conducts only in reverse bias above VBR, with polarity marked by a cathode band. Bidirectional operation requires the CA suffix (e.g., SMCJ6.0CA), which provides symmetrical clamping in both directions - a function not supported by the SMCJ6.0AHM3/H design or characterization data.
SMCJ6.0AHM3/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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 145.6A
- 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)
SMCJ6.0AHM3/H FAQ
1.How can I place an order for SMCJ6.0AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.0AHM3/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 SMCJ6.0AHM3/H reliable?
The price and inventory of SMCJ6.0AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.0AHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ6.0AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.0AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.0AHM3/H?
SMCJ6.0AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.0AHM3/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 SMCJ6.0AHM3/H?
For technical support, including SMCJ6.0AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.0AHM3/H requirements.
6.How does Aetrix verify that SMCJ6.0AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ6.0AHM3/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 SMCJ6.0AHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ6.0AHM3/H?
All SMCJ6.0AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.0AHM3/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 SMCJ6.0AHM3/H part is unused and in its original packaging.
Return procedure for SMCJ6.0AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.0AHM3/H Tags

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