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Vishay General Semiconductor - Diodes Division SMCJ8.0AHM3_A/H
- Part No.:
- SMCJ8.0AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8.0AHM3_A/H.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,735
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Product details
Overview
SMCJ8.0AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage at 110.3 A peak pulse current (10/1000 μs), and 1500 W peak pulse power rating. Used to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD in automotive and industrial control systems.
For engineers reviewing the SMCJ8.0AHM3_A/H datasheet, SMCJ8.0AHM3_A/H pinout, SMCJ8.0AHM3_A/H application, or SMCJ8.0AHM3_A/H equivalent, key selection criteria include its 8.0 V VWM, 13.6 V VC at IPPM, unidirectional polarity with cathode band marking, halogen-free RoHS-compliant construction, and AEC-Q101 qualification status indicated by the HM3 suffix.
Technical Context
The SMCJ8.0AHM3_A/H operates as a silicon avalanche diode that enters breakdown when reverse voltage exceeds its 8.0 V stand-off threshold, clamping transient energy within 1.0 ps response time. Its glass-passivated junction ensures stable leakage (<50 μA at VWM) and low incremental surge resistance for repeatable clamping performance under repetitive surges.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it delivers 1500 W peak pulse power handling with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W. 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.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 8.89 V / 9.83 V at 10 mA - Verified breakdown voltage range ensuring reliable turn-on margin |
| VC @ IPPM | 13.6 V at 110.3 A (10/1000 μs) - Clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - Peak transient energy absorption capability without failure |
| ID @ VWM | ≤50 μA - Low leakage preserves system efficiency and avoids false triggering |
| TJ max | +150 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
SMCJ8.0AHM3_A/H uses the SMC (DO-214AB) package: a rectangular surface-mount case with two coplanar matte tin-plated leads, cathode identified by a visible band. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for full 1500 W rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (unidirectional) | Connected to lower-potential side of protected line; carries forward surge current up to 200 A (8.3 ms half-sine) |
| Cathode | Reverse-biased clamping node | Marked with band; tied to higher-potential rail or ground reference to clamp transients above VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Halogen-free & RoHS-compliant | HM3 suffix confirms compliance with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU |
| Low incremental surge resistance | Enables tighter clamping (13.6 V VC) and reduced let-through energy versus higher-Rsurge TVS devices |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking preconditioning |
| Glass passivated junction | Provides stable VBR tolerance, low leakage drift, and long-term parameter consistency across temperature |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp spikes >8.0 V. Use Value: Limits voltage seen by downstream regulators and microcontrollers to ≤13.6 V during 1500 W surges, preventing latch-up or gate oxide damage. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across differential signal pair or single-ended output to ground. Use Value: Sub-nanosecond response and <50 μA leakage preserve signal integrity while diverting >110 A transients away from precision front-end amplifiers. |
| DC Motor Drive Circuit Protection | Telecom Power Supply Input Protection |
Use Scenario: Suppressing inductive kickback from brushed DC motors in factory automation actuators. IC Role / Device Role / Timing Role: Mounted across motor terminals or H-bridge supply rails to absorb flyback energy. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) and maintains clamping stability across -55 °C to +150 °C ambient. | Use Scenario: Guarding primary-side DC inputs of telecom power modules against lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense in series with input filter, shunting transients to chassis ground. Use Value: 1500 W PPPM rating and 13.6 V clamping enable compliance with ITU-T K.20/21 immunity requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0AHE3_A/H | Lower PPPM (600 W), same VWM (8.0 V), SMB package (smaller footprint, higher RθJA) | Not suitable for 1500 W surge environments; limited to lower-energy transients | Select only if board space is constrained and surge threat level is ≤600 W |
| SMCJ8.0A-E3/57T | Same electrical specs, but commercial-grade (non-AEC-Q101), RoHS-compliant E3 suffix, not halogen-free | Lacks automotive qualification; acceptable for industrial/commercial use where AEC-Q101 is not mandated | Choose when halogen-free content is not required and automotive qualification is unnecessary |
Compared with SMBJ8.0AHE3_A/H and SMCJ8.0A-E3/57T, the SMCJ8.0AHM3_A/H uniquely combines 1500 W surge capacity, AEC-Q101 qualification, and halogen-free construction-making it the only option among the three validated for under-hood automotive deployment with full environmental stress coverage.
Availability
SMCJ8.0AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, telecom power supplies, and sensor interface circuits requiring stable component supply with guaranteed AEC-Q101 compliance and halogen-free material content.
Supply support for SMCJ8.0AHM3_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, power efficiency, and automotive-grade validation.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including automotive power systems, industrial controls, and infrastructure equipment where consistent clamping and long-term parametric stability are critical.
FAQ
What is the clamping voltage of the SMCJ8.0AHM3_A/H under maximum surge conditions?
The SMCJ8.0AHM3_A/H has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 110.3 A using the standard 10/1000 μs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads) and represents the upper limit of voltage imposed on the protected circuit during worst-case transient events. The SMCJ8.0AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the SMCJ8.0AHM3_A/H qualified for automotive applications?
Yes, the SMCJ8.0AHM3_A/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its ordering code-denoting halogen-free, RoHS-compliant, and automotive-grade qualification. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock per AEC-Q101 Rev D. This makes the SMCJ8.0AHM3_A/H suitable for engine control units, body electronics, and ADAS modules where automotive reliability standards apply.
What does the "_A/H" suffix mean in SMCJ8.0AHM3_A/H?
The "_A/H" suffix in SMCJ8.0AHM3_A/H indicates packaging configuration: "A" denotes the revision code (per Vishay's internal revision tracking), and "H" specifies the preferred package code for 7-inch plastic tape-and-reel delivery with 850 units per reel. This format aligns with Vishay's standardized ordering nomenclature shown in the datasheet's Ordering Information table and ensures correct logistics handling and automated placement compatibility.
How does the SMCJ8.0AHM3_A/H differ from the SMCJ8.0A-E3/57T?
The SMCJ8.0AHM3_A/H differs from SMCJ8.0A-E3/57T in three key aspects: it carries the HM3 suffix confirming halogen-free and AEC-Q101 qualification, whereas E3/57T is commercial-grade only; both share identical electrical specs (VWM = 8.0 V, VC = 13.6 V), but the HM3 version is validated for automotive temperature and lifetime stress profiles. The SMCJ8.0AHM3_A/H also uses matte tin plating meeting JESD 22-B102 whisker test Class 2, unlike the E3 variant's baseline tin finish.
Can the SMCJ8.0AHM3_A/H be used in bidirectional configurations?
No, the SMCJ8.0AHM3_A/H is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and presence of a cathode band marking. Bidirectional operation requires the "CA" variant (e.g., SMCJ8.0CA), which lacks polarity marking and exhibits symmetrical clamping in both directions. Using the SMCJ8.0AHM3_A/H in a bidirectional application would result in forward conduction during negative transients, potentially causing failure. Always match device polarity to circuit topology-SMCJ8.0AHM3_A/H is intended for DC rail protection with defined anode/cathode orientation.
SMCJ8.0AHM3_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:
- 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/H FAQ
1.How can I place an order for SMCJ8.0AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8.0AHM3_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 SMCJ8.0AHM3_A/H reliable?
The price and inventory of SMCJ8.0AHM3_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 SMCJ8.0AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ8.0AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8.0AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8.0AHM3_A/H?
SMCJ8.0AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8.0AHM3_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 SMCJ8.0AHM3_A/H?
For technical support, including SMCJ8.0AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8.0AHM3_A/H requirements.
6.How does Aetrix verify that SMCJ8.0AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ8.0AHM3_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 SMCJ8.0AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ8.0AHM3_A/H?
All SMCJ8.0AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8.0AHM3_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 SMCJ8.0AHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ8.0AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ8.0AHM3_A/H Tags
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