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Vishay General Semiconductor - Diodes Division 1.5SMC82AHE3/57T
- Part No.:
- 1.5SMC82AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82AHE3/57T.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,783
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Product details
Overview
1.5SMC82AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount 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 capability with a 10/1000 µs waveform - ideal for safeguarding automotive ECUs and industrial sensor interfaces against lightning-induced transients.
For engineers reviewing the 1.5SMC82AHE3/57T datasheet, 1.5SMC82AHE3/57T pinout, 1.5SMC82AHE3/57T application, or 1.5SMC82AHE3/57T equivalent, key selection criteria include its AEC-Q101 qualification, SMC (DO-214AB) package with cathode band polarity marking, low incremental surge resistance, and compliance with UL 497B for telecom and automotive surge protection systems.
Technical Context
The 1.5SMC82AHE3/57T operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ns) and stable clamping under repetitive transient stress. Its thermal resistance (RθJA = 75 °C/W) and junction temperature range (–65 °C to +150 °C) support reliable operation in high-ambient environments such as engine compartments and industrial motor drives.
Designed for automated SMT placement, it meets JESD 201 Class 2 whisker resistance and MSL Level 1 per J-STD-020 (peak reflow 260 °C). The device delivers 13.3 A peak pulse current (IPPM) at 113 V clamping while maintaining <1 μA reverse leakage at VWM, enabling low-power standby compatibility in always-on automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70.1 V - Maximum continuous reverse operating voltage before clamping begins; ensures no conduction during normal 48 V system operation. |
| VBR (min/max) | 77.9 V / 86.1 V at 1 mA - Confirmed breakdown threshold range; guarantees consistent turn-on across production lots and temperature. |
| VC @ IPPM | 113 V at 13.3 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels per IEC 61000-4-5 Level 4. |
| PPPM | 1500 W - Peak pulse power handling; supports repeated 1 kV/42 Ω surge events without degradation. |
| IFSM | 200 A - Non-repetitive forward surge rating (8.3 ms half-sine); protects against load dump in 12/24 V automotive systems. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood applications without derating below 125 °C ambient. |
| Package | SMC (DO-214AB) - Industry-standard 7.75 mm × 6.22 mm surface-mount outline; compatible with standard SMT pick-and-place and reflow profiles. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines directionality for unidirectional clamping. |
| Cathode | Clamping output / Surge current sink | Connected to higher-potential rail (e.g., VBAT or signal return); conducts surge energy to ground path during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for ECU, ADAS, and body control modules. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 10/1000 µs surges up to ±1 kV (open-circuit) without failure, eliminating need for external series impedance in many designs. |
| Glass-passivated junction | Ensures stable VBR and low leakage (<1 μA at VWM) over lifetime, critical for battery-powered sensor nodes with multi-year shelf life. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard 260 °C lead-free reflow, reducing manufacturing cost and risk of popcorning. |
| UL 497B recognized (QVGQ2) | Approved for use in telecom and industrial data line protectors - simplifies safety certification for Ethernet, CAN, and RS-485 interfaces. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units against ISO 7637-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp positive-going surges above 70.1 V. Use Value: Limits clamped voltage to 113 V, preventing damage to 100 V-rated DC-DC converters and microcontrollers without requiring additional filtering. |
Use Scenario: Safeguarding analog inputs of PLC I/O modules connected to 4–20 mA field transmitters exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: TVS mounted across input terminals to shunt induced common-mode surges before reaching precision op-amps and ADC front-ends. Use Value: Sub-1 ns response ensures clamping occurs before transient propagates into signal chain, preserving measurement integrity in sub-1% accuracy systems. |
| Telecom Data Line Protection | Consumer Power Adapter Input Stage |
Use Scenario: Protecting Ethernet PHY power pins (e.g., MDI-X bias supply) in PoE-enabled switches from induced surges on cabling. IC Role / Device Role / Timing Role: Unidirectional suppressor placed between isolated DC supply and chassis ground to absorb longitudinal surges. Use Value: UL 497B recognition validates compliance with telecom safety standards, reducing time-to-market for certified infrastructure equipment. |
Use Scenario: Secondary-side overvoltage suppression in universal-input AC/DC adapters subjected to mains switching transients and capacitor discharge events. IC Role / Device Role / Timing Role: TVS across bulk capacitor output to prevent overvoltage propagation to downstream USB-PD controllers and load switches. Use Value: 1500 W rating handles worst-case 10/1000 µs events without thermal runaway, supporting compact adapter designs with minimal heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ85A-E3/57T | Higher VWM (72.2 V), higher VC (125 V), same SMC package and 1500 W rating. | Less margin between VWM and typical 48 V nominal systems; may false-trigger during brownout recovery. | Select when tighter VBR tolerance (±5%) is required and 125 V clamping is acceptable for downstream components. |
| 1.5KE82A | Through-hole DO-201 package, identical electrical specs but larger footprint and manual assembly requirement. | Not suitable for high-density SMT layouts or automated production; lacks AEC-Q101 qualification. | Choose only for legacy board redesigns where SMT conversion is impractical and automotive qualification is not mandated. |
Compared with SMAJ85A-E3/57T and 1.5KE82A, the 1.5SMC82AHE3/57T provides optimal balance of AEC-Q101 compliance, SMT manufacturability, and 70.1 V VWM headroom for 48 V automotive systems - making it the preferred choice for new designs targeting functional safety and volume production.
Availability
1.5SMC82AHE3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom data line protection, and consumer power adapter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5SMC82AHE3/57T 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 1.5SMC Series was developed specifically for high-power, surface-mount transient suppression in automotive, industrial, and telecom systems - prioritizing AEC-Q101 qualification, low clamping ratio, and robust surge endurance.
FAQ
What is the maximum clamping voltage of the 1.5SMC82AHE3/57T under a 10/1000 µs surge?
The 1.5SMC82AHE3/57T has a maximum clamping voltage (VC) of 113 V at 13.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88303, Rev. 09-Mar-2026) and represents the upper limit of voltage seen by protected circuitry during standardized surge events.
Is the 1.5SMC82AHE3/57T qualified for automotive applications?
Yes, the 1.5SMC82AHE3/57T is AEC-Q101 qualified, as confirmed by its "HE3" suffix and documentation in Vishay's 1.5SMC Series datasheet. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification - meeting requirements for engine control units, ADAS sensors, and body electronics.
What does the "HE3/57T" suffix indicate in 1.5SMC82AHE3/57T?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction, while "57T" specifies packaging in 7-inch diameter plastic tape and reel with 850 units per reel. This ordering code ensures traceability, automotive-grade reliability, and compatibility with standard SMT feeders used in high-volume electronics manufacturing.
How does the 1.5SMC82AHE3/57T compare to bidirectional TVS diodes like 1.5SMC82CAHE3/57T?
The 1.5SMC82AHE3/57T is unidirectional and features a cathode band for polarity identification, whereas 1.5SMC82CAHE3/57T is bidirectional with no polarity marking. The unidirectional version offers lower leakage (<1 μA at VWM) and is preferred for DC power rail protection; the bidirectional variant suits AC signal lines or differential buses like RS-485 where polarity reversal occurs.
What is the thermal resistance and maximum junction temperature of the 1.5SMC82AHE3/57T?
The 1.5SMC82AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a maximum junction temperature (TJ) of +150 °C. These values are measured on the recommended 8.0 mm × 8.0 mm copper pad layout and enable reliable operation in under-hood automotive environments up to +125 °C ambient.
1.5SMC82AHE3/57T 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC82AHE3/57T FAQ
1.How can I place an order for 1.5SMC82AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82AHE3/57T 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 1.5SMC82AHE3/57T reliable?
The price and inventory of 1.5SMC82AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC82AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82AHE3/57T?
1.5SMC82AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82AHE3/57T 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 1.5SMC82AHE3/57T?
For technical support, including 1.5SMC82AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC82AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82AHE3/57T 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 1.5SMC82AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC82AHE3/57T?
All 1.5SMC82AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82AHE3/57T, 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 1.5SMC82AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC82AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82AHE3/57T Tags
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