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Vishay General Semiconductor - Diodes Division 1.5SMC82AHM3/H
- Part No.:
- 1.5SMC82AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82AHM3/H.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,263
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Product details
Overview
1.5SMC82AHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 70.1 V stand-off voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 V maximum clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive ECUs, industrial I/O modules, and DC power rail protection.
For engineers reviewing the 1.5SMC82AHM3/H datasheet, 1.5SMC82AHM3/H pinout, 1.5SMC82AHM3/H application, or 1.5SMC82AHM3/H equivalent, key selection criteria include clamping performance under 13.3 A surge, unidirectional polarity with cathode band marking, SMC (DO-214AB) package thermal resistance (RθJA = 75 °C/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 70.1 V, it avalanches to limit transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM), while the 10/1000 μs waveform rating reflects standardized lightning and inductive-switching surge immunity testing.
The device is rated for -65 °C to +150 °C operating junction temperature, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and meets JESD201 Class 2 whisker resistance and MSL Level 1 (260 °C reflow). The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 70.1 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - Voltage range where avalanche conduction initiates reliably; ensures consistent turn-on across production lot. |
| VC (Clamping) | 113 V at 13.3 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM | 1500 W - Peak pulse power handling capability under standard lightning surge waveform; validates robustness against IEC 61000-4-5 threats. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended 8.0 mm × 8.0 mm copper pads; guides PCB thermal layout design. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; grounded or connected to low-impedance return path in TVS configuration. | Provides reference node for clamping action; must be routed with minimal inductance to maintain fast response. |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 12 V rail or CAN_H). | Marked with black band; carries full surge current during transient events - requires adequate copper area for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against severe lightning-induced surges per IEC 61000-4-5 Level 4 without derating in standard layouts. |
| 75 °C/W thermal resistance (RθJA) | Allows direct thermal coupling to PCB copper; eliminates need for external heatsinks in most 12–48 V system designs. |
| AEC-Q101 qualification (HM3 suffix) | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1 μA) across temperature and lifetime, critical for low-power sensor rails. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns - simplifies manufacturing and reduces BOM risk. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator transients. IC Role / Device Role: Unidirectional shunt TVS placed between VIN and GND, clamping spikes above 70.1 V. Use Value: Limits voltage to ≤113 V during 13.3 A surges, preventing damage to 16 V-rated LDOs and MCU IO cells. |
Use Scenario: Safeguarding analog outputs (4–20 mA) and digital I/O (RS-485, CAN) in PLC analog input modules exposed to field wiring transients. IC Role / Device Role: Line-side TVS on signal pairs, referenced to local ground with low-inductance layout. Use Value: Clamps induced surges to <113 V within nanoseconds, preserving signal integrity and avoiding latch-up in isolated interface ICs. |
| DC Power Supply Input Protection | Telecom Equipment Surge Suppression |
|
Use Scenario: Front-end protection for 48 V telecom rectifier outputs feeding PoE injectors or base station RF modules. IC Role / Device Role: Primary unidirectional TVS on main DC bus, coordinated with upstream fuses and secondary MOVs. Use Value: Absorbs 1500 W surge energy without degradation, maintaining <113 V clamping to protect downstream DC-DC converters. |
Use Scenario: Secondary-level protection on Ethernet PHY ports (10/100/1000BASE-T) in network switches subjected to ESD and lightning-coupled surges. IC Role / Device Role: Low-capacitance TVS on differential pairs, leveraging fast response (<1 ns) and precise VBR tolerance. Use Value: Prevents data corruption and PHY latch-up by limiting transient overshoot to <113 V while adding <0.5 pF parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A | Lower PPPM (600 W), same VWM (64.0 V), higher VC (129 V at 4.7 A), SMB package (smaller footprint, higher RθJA). | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select only for space-constrained consumer electronics with <600 W threat profile and no AEC-Q101 requirement. |
| 1.5KE82A | Through-hole DO-201 package, identical electrical specs (VWM = 70.1 V, VC = 113 V), but no AEC-Q101 qualification or halogen-free compliance. | Not suitable for automated SMT assembly or automotive production; higher thermal resistance limits power handling on PCB. | Use only for prototyping or legacy through-hole designs where RoHS/AEC-Q101 are not mandated. |
Compared with SMBJ80A and 1.5KE82A, the 1.5SMC82AHM3/H delivers certified automotive reliability, superior 1500 W surge capacity in compact SMC packaging, and halogen-free compliance - making it the preferred choice for production-grade automotive and industrial power rail protection where both performance and qualification matter.
Availability
1.5SMC82AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial I/O modules, and 48 V telecom power supplies requiring stable component supply, AEC-Q101 traceability, and long-term lifecycle support.
Supply support for 1.5SMC82AHM3/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 1.5SMC Series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the 1.5SMC82AHM3/H under a 10/1000 μs surge?
The 1.5SMC82AHM3/H has a maximum clamping voltage (VC) of 113 V at 13.3 A peak pulse current with a 10/1000 μs waveform. This value is measured per industry-standard test conditions and defines the upper voltage limit imposed on protected circuits during transient events. It is specified in the Vishay datasheet Document Number 88303, page 2, Electrical Characteristics table.
Is the 1.5SMC82AHM3/H qualified for automotive applications?
Yes, the 1.5SMC82AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix and documentation in Vishay's 1.5SMC Series datasheet (Rev. 09-Mar-2026). This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), validating its use in engine control units, body electronics, and ADAS subsystems.
What does the "HM3" suffix indicate for the 1.5SMC82AHM3/H?
The "HM3" suffix on the 1.5SMC82AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "M3" parts and confirms compliance with automotive material standards, JESD201 Class 2 whisker resistance, and MSL Level 1 reflow capability (260 °C peak).
What is the thermal resistance of the 1.5SMC82AHM3/H, and how does it affect PCB layout?
The 1.5SMC82AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's package drawing; reducing pad size increases thermal impedance and may require derating of surge capability in high-ambient environments.
How does the 1.5SMC82AHM3/H differ from bidirectional TVS diodes like 1.5SMC82CA?
The 1.5SMC82AHM3/H is unidirectional and features a cathode band for polarity identification, enabling use in DC circuits where reverse conduction must be blocked. In contrast, 1.5SMC82CA is bidirectional with symmetrical clamping in both directions and no polarity marking - suited for AC lines or differential signals like RS-485, but not for single-polarity DC rail protection.
1.5SMC82AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC82AHM3/H FAQ
1.How can I place an order for 1.5SMC82AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82AHM3/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 1.5SMC82AHM3/H reliable?
The price and inventory of 1.5SMC82AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82AHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC82AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82AHM3/H?
1.5SMC82AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82AHM3/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 1.5SMC82AHM3/H?
For technical support, including 1.5SMC82AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82AHM3/H requirements.
6.How does Aetrix verify that 1.5SMC82AHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82AHM3/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 1.5SMC82AHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC82AHM3/H?
All 1.5SMC82AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82AHM3/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 1.5SMC82AHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC82AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82AHM3/H Tags
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