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Vishay General Semiconductor - Diodes Division SMCJ8.0AHE3_A/H
- Part No.:
- SMCJ8.0AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8.0AHE3_A/H.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,392
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Product details
Overview
SMCJ8.0AHE3_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 on power and signal lines. It features 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage at 110.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMCJ8.0AHE3_A/H datasheet, SMCJ8.0AHE3_A/H pinout, SMCJ8.0AHE3_A/H application, or SMCJ8.0AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 1500 W surge capability, low clamping ratio (VC/VWM = 1.7), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector triggered by reverse-biased avalanche breakdown. Its glass-passivated junction enables sub-nanosecond response time and stable clamping under repetitive surges. The device is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
Designed for unidirectional transient suppression, SMCJ8.0AHE3_A/H has cathode-band polarity marking and delivers 9.2 V minimum breakdown voltage at 10 mA test current. Its thermal resistance is 75 °C/W junction-to-ambient (RθJA) and 15 °C/W junction-to-lead (RθJL), supporting reliable operation without heatsinking under defined PCB pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min / max | 8.89 V / 9.83 V at 10 mA - Ensures predictable avalanche turn-on within tight tolerance band |
| VC @ IPPM | 13.6 V at 110.3 A - Clamped voltage during 10/1000 μs surge; defines protected circuit's maximum overvoltage stress |
| PPPM | 1500 W - Peak transient energy absorption capacity under standardized surge waveform |
| ID @ VWM | 50 μA - Low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 0.320" body length and matte tin-plated leads |
Pinout & Package
SMCJ8.0AHE3_A/H uses the SMC (DO-214AB) package: 2-terminal surface-mount device with cathode marked by a band on one end. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side of protected line; conducts only during forward surge events (rare in TVS use) |
| Cathode | Avalanche clamping node | Marked with band; connected to higher-potential side (e.g., VBUS or signal line); sinks surge current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JEDEC standards |
| Glass passivated junction | Enhances long-term stability of breakdown voltage and reduces parameter drift across temperature and life cycles |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection margin |
| MSL Level 1 compliance | Enables standard SMT reflow without moisture-related popcorning; no bake required prior to assembly |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets fire-safety requirements for enclosed industrial and automotive modules |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and chassis ground to clamp surges above 13.6 V. Use Value: Prevents latch-up or gate oxide damage in downstream PMICs and microcontrollers during 100 V/40 ms load dump events. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Reverse-biased TVS on signal line (e.g., 4–20 mA loop) to suppress induced lightning-induced transients up to 1 kV. Use Value: Maintains signal integrity below 13.6 V clamping threshold while adding <1 pF junction capacitance at 0 V bias. |
| DC-DC Converter Input Stage | Consumer USB Power Path |
Use Scenario: Input-side transient suppression for buck converters powering infotainment systems from vehicle battery rails. IC Role / Device Role / Timing Role: Primary surge absorber upstream of input filter capacitors and controller ICs. Use Value: Absorbs 1500 W peak pulses without degradation, enabling single-device protection instead of multi-stage solutions. | Use Scenario: Overvoltage protection on 5 V USB VBUS lines in portable docking stations subjected to hot-plug and ESD events. IC Role / Device Role / Timing Role: Fast-response clamping element between VBUS and GND, coordinated with internal USB switch FETs. Use Value: Limits transient excursions to ≤13.6 V, preventing damage to USB PD controllers and port power switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-E3/57T | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Suitable for space-constrained consumer electronics but not automotive load dump | Select when board area is critical and surge energy is ≤400 W |
| 1.5SMC8.0A | Same SMC package and 1500 W rating, but commercial-grade (non-AEC-Q101) and higher ID (100 μA) | Acceptable for industrial control panels but not automotive OEM designs requiring qualification evidence | Select for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
Compared with SMAJ8.0A-E3/57T and 1.5SMC8.0A, SMCJ8.0AHE3_A/H uniquely combines AEC-Q101 qualification, 1500 W surge rating, and 50 μA low leakage in the SMC package - making it the preferred choice for automotive power rail protection where reliability and energy handling are jointly critical.
Availability
SMCJ8.0AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, DC-DC converter input stages, and consumer USB power path designs requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ8.0AHE3_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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments such as automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage range for SMCJ8.0AHE3_A/H?
The SMCJ8.0AHE3_A/H has a guaranteed breakdown voltage (VBR) range of 8.89 V to 9.83 V at 10 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margin design in protected circuits using the SMCJ8.0AHE3_A/H.
Is SMCJ8.0AHE3_A/H suitable for automotive applications?
Yes, SMCJ8.0AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix HE3. It meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock - making it appropriate for engine control units, body electronics, and ADAS power rails where the SMCJ8.0AHE3_A/H provides certified transient immunity.
What is the maximum clamping voltage of SMCJ8.0AHE3_A/H under surge conditions?
The SMCJ8.0AHE3_A/H clamps to a maximum of 13.6 V when subjected to its rated 110.3 A peak pulse current (IPPM) with a 10/1000 μs waveform. This VC value defines the upper voltage limit imposed on protected circuitry during worst-case transients and is confirmed in Vishay's datasheet Figure 4 and Table on page 2.
Does SMCJ8.0AHE3_A/H have polarity marking, and how is it identified?
Yes, SMCJ8.0AHE3_A/H is unidirectional and features a cathode band marking on the SMC (DO-214AB) package body. The banded end corresponds to the cathode terminal, which must be connected toward the higher-potential side of the protected line - for example, to VBUS or a signal line - while the anode connects to ground or return path in the SMCJ8.0AHE3_A/H implementation.
What is the thermal resistance specification for SMCJ8.0AHE3_A/H?
The SMCJ8.0AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" copper pads, and a junction-to-lead resistance (RθJL) of 15 °C/W. These values enable accurate thermal modeling for derating calculations in high-temperature environments where the SMCJ8.0AHE3_A/H operates continuously near its 6.5 W power dissipation limit.
SMCJ8.0AHE3_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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ8.0AHE3_A/H FAQ
1.How can I place an order for SMCJ8.0AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8.0AHE3_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 SMCJ8.0AHE3_A/H reliable?
The price and inventory of SMCJ8.0AHE3_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 SMCJ8.0AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ8.0AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8.0AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8.0AHE3_A/H?
SMCJ8.0AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8.0AHE3_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 SMCJ8.0AHE3_A/H?
For technical support, including SMCJ8.0AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8.0AHE3_A/H requirements.
6.How does Aetrix verify that SMCJ8.0AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ8.0AHE3_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 SMCJ8.0AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ8.0AHE3_A/H?
All SMCJ8.0AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8.0AHE3_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 SMCJ8.0AHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ8.0AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ8.0AHE3_A/H Tags
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