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Vishay General Semiconductor - Diodes Division SMCJ8.0AHM3_A/I
- Part No.:
- SMCJ8.0AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8.0AHM3_A/I.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
SMCJ8.0AHM3_A/I 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 a 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 110.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMCJ8.0AHM3_A/I datasheet, SMCJ8.0AHM3_A/I pinout, SMCJ8.0AHM3_A/I application, or SMCJ8.0AHM3_A/I equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), thermal resistance (RθJA = 75 °C/W), and junction temperature range (–55 °C to +150 °C).
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling sub-nanosecond response to ESD and lightning-induced transients.
The SMCJ8.0AHM3_A/I is rated for 1500 W peak pulse power under standardized 10/1000 μs waveform, with clamping performance validated at 110.3 A IPPM and 13.6 V VC. It meets J-STD-020 MSL Level 1 (260 °C reflow peak) and supports automated SMT placement due to its low-profile SMC package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown |
| VBR min / max | 8.89 V / 9.83 V at IT = 1.0 mA - guaranteed breakdown voltage window ensuring predictable turn-on threshold |
| VC @ IPPM | 13.6 V at 110.3 A - clamped voltage during worst-case 1500 W transient; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak transient energy handling capacity using standard 10/1000 μs waveform; critical for surge immunity design |
| ID @ VWM | 50 μA - maximum reverse leakage at 8.0 V; low leakage preserves efficiency in battery-powered or high-impedance circuits |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs heatsinking requirements on standard 8.0 mm × 8.0 mm copper pads |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; unidirectional configuration only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events |
| Cathode | Reverse-biased avalanche terminal | Connected to protected line (e.g., 12 V rail or sensor input); initiates clamping when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for modern automotive and industrial electronics without compromising surge robustness |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 4.77 V) and higher effective power handling versus comparable TVS devices |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking; simplifies SMT manufacturing flow |
| Glass passivated junction | Provides stable, repeatable breakdown characteristics over lifetime and across temperature extremes (–55 °C to +150 °C) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply lines in engine control units (ECUs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC/DC converter input. Use Value: Limits transient voltage to ≤13.6 V during 1500 W surges, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Reverse-biased protection element on 4–20 mA or 0–10 V signal lines exposed to field wiring transients. Use Value: Clamps induced spikes to <14 V while maintaining <50 μA leakage at 8.0 V, preserving signal integrity and accuracy. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for smart home hubs and gateways. IC Role / Device Role / Timing Role: Standoff-rated TVS on +5 V or +12 V output rails to absorb coupling from primary-side switching noise. Use Value: Withstands repetitive 1500 W pulses without degradation, extending adapter lifetime in high-noise environments. |
Use Scenario: Surge protection on -48 V DC feeding telecom base station radios and remote radio heads (RRHs). IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground on power input before DC/DC conversion. Use Value: Delivers 110.3 A peak current handling at 13.6 V clamping, meeting Telcordia GR-1089-CORE Level 4 surge requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0AHE3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR/VC specs | Not suitable for 1500 W surge events; limited to lower-energy transients in space-constrained consumer designs | Select when board area is critical and surge threat level is ≤400 W (e.g., USB port protection) |
| SMCJ8.0AHE3_A/I | Same electrical specs and SMC package, but RoHS-compliant commercial grade (E3) without halogen-free certification | Lacks halogen-free compliance required for certain automotive OEM Tier 1 specifications | Choose for cost-sensitive industrial applications where HM3 halogen-free requirement does not apply |
Compared with SMAJ8.0AHE3_A/I and SMCJ8.0AHE3_A/I, the SMCJ8.0AHM3_A/I uniquely combines 1500 W surge capability, AEC-Q101 qualification, and halogen-free construction - making it the only option among the three qualified for high-reliability automotive power rail protection.
Availability
SMCJ8.0AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power feeds, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMCJ8.0AHM3_A/I 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 part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where robustness and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMCJ8.0AHM3_A/I at its rated peak pulse current?
The SMCJ8.0AHM3_A/I has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current (IPPM) of 110.3 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during a full-power transient event. The SMCJ8.0AHM3_A/I maintains this clamping performance across its operational temperature range.
Is SMCJ8.0AHM3_A/I qualified for automotive applications?
Yes, the SMCJ8.0AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's SMCJ5.0A–SMCJ188CA datasheet (Rev. 09-Jan-2024). This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD, validating its suitability for under-hood and chassis-mounted automotive systems. The SMCJ8.0AHM3_A/I is explicitly designated for automotive use in Vishay's ordering information table.
What does the "HM3" suffix indicate in SMCJ8.0AHM3_A/I?
The "HM3" suffix in SMCJ8.0AHM3_A/I denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It distinguishes this variant from E3 (RoHS-compliant commercial grade) and HE3 (AEC-Q101 qualified but not halogen-free). The HM3 version satisfies stringent environmental and reliability requirements for Tier 1 automotive suppliers and industrial equipment manufacturers requiring both regulatory compliance and high-surge robustness. The SMCJ8.0AHM3_A/I meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards.
Can SMCJ8.0AHM3_A/I be used in bidirectional configurations?
No, the SMCJ8.0AHM3_A/I is a unidirectional TVS diode, as indicated by its "A" (not "CA") designation and cathode band marking. Bidirectional variants carry the "CA" suffix (e.g., SMCJ8.0CA) and exhibit symmetrical breakdown in both polarities. Using the SMCJ8.0AHM3_A/I in reverse-biased signal paths without proper polarity alignment will result in forward conduction and failure. For bidirectional protection, select SMCJ8.0CA or equivalent.
What is the thermal resistance of SMCJ8.0AHM3_A/I, and how does it affect layout?
The SMCJ8.0AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value directly impacts PCB layout: undersized pads increase thermal impedance, raising junction temperature during repeated surges and risking parametric shift or failure. To maintain reliability, the SMCJ8.0AHM3_A/I must be placed on minimum specified copper areas and avoid thermal isolation from ground planes.
SMCJ8.0AHM3_A/I 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:
- 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)
SMCJ8.0AHM3_A/I FAQ
1.How can I place an order for SMCJ8.0AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8.0AHM3_A/I 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 SMCJ8.0AHM3_A/I reliable?
The price and inventory of SMCJ8.0AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ8.0AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ8.0AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8.0AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8.0AHM3_A/I?
SMCJ8.0AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8.0AHM3_A/I 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 SMCJ8.0AHM3_A/I?
For technical support, including SMCJ8.0AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8.0AHM3_A/I requirements.
6.How does Aetrix verify that SMCJ8.0AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ8.0AHM3_A/I 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 SMCJ8.0AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ8.0AHM3_A/I?
All SMCJ8.0AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8.0AHM3_A/I, 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 SMCJ8.0AHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ8.0AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ8.0AHM3_A/I Tags
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