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Vishay General Semiconductor - Diodes Division 1.5SMC82AHE3_A/I
- Part No.:
- 1.5SMC82AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82AHE3_A/I.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,054
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Product details
Overview
1.5SMC82AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, rated for 82 V breakdown voltage (VBR = 77.9–86.1 V at IT = 1 mA), 113 V maximum clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power (10/1000 µs). It provides robust ESD and surge protection for automotive-grade power rails and signal lines in engine control units and battery management systems.
For engineers reviewing the 1.5SMC82AHE3_A/I datasheet, 1.5SMC82AHE3_A/I pinout, 1.5SMC82AHE3_A/I application, or 1.5SMC82AHE3_A/I equivalent, this AEC-Q101 qualified TVS offers verified unidirectional clamping performance, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive PCB assembly and transient immunity validation.
Technical Context
This device operates as a unidirectional avalanche diode with a glass-passivated junction, enabling fast response (<1 ns) to transients and stable clamping under repetitive 10/1000 µs surges at 0.01% duty cycle. Its thermal resistance (RθJA = 75 °C/W) and junction temperature limit (TJ = –65 to +150 °C) support operation on standard 8.0 mm × 8.0 mm copper pads without forced cooling.
The 1.5SMC82AHE3_A/I features a cathode-band polarity marking, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements. Its AEC-Q101 qualification confirms suitability for automotive applications requiring validated reliability under temperature cycling, humidity, and mechanical stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at 1 mA test current - defines precise avalanche onset window for predictable clamping threshold |
| VWM | 70.1 V - maximum continuous reverse stand-off voltage before leakage exceeds 1 µA; sets safe operating margin below VBR |
| VC @ IPPM | 113 V at 13.3 A - clamping voltage during 1500 W transient; determines protected circuit's maximum overvoltage exposure |
| PPPM | 1500 W (10/1000 µs waveform) - peak surge energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a events |
| IFSM | 200 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction; supports load-dump immunity |
| TJ max | +150 °C - maximum junction temperature; allows operation in under-hood automotive environments without derating |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; cathode identified by a band on the body; meets UL 94 V-0 and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side of protected line; conducts during load-dump or reverse-battery fault conditions |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to higher-potential rail (e.g., battery+); establishes unidirectional clamping path to ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test requirements including temperature cycling, HAST, and mechanical shock - eliminates need for additional qualification |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (50 V, 100 ms) and IEC 61000-4-5 Combination Wave (1 kV/500 A) without degradation |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM) across –65 °C to +150 °C operating range |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking; supports high-yield SMT manufacturing |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., <100 ns edges), improving protection margin for sensitive MCUs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery+ and chassis ground to clamp positive surges above 70.1 V. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤113 V, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt induced lightning-induced transients (IEC 61000-4-5) before reaching signal conditioning circuitry. Use Value: Clamps 1 kV/500 A combination wave to ≤113 V within <1 ns, preserving ADC input integrity and avoiding system resets. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters powering USB-C PD devices. IC Role / Device Role / Timing Role: Unidirectional TVS on +5 V/9 V/15 V output rails to absorb feedback-loop instability spikes or hot-plug transients. Use Value: Maintains regulated output within ±5% tolerance during 1500 W surges, ensuring compliance with USB PD 3.1 voltage accuracy specs. |
Use Scenario: Primary protection for Ethernet PHY interfaces on telecom line cards subjected to induced surges from nearby power lines. IC Role / Device Role / Timing Role: TVS placed on differential pairs (e.g., MDI-X) referenced to local ground plane to suppress common-mode transients. Use Value: Limits differential voltage excursion to <113 V while maintaining <0.5 pF junction capacitance (per Vishay typical data), preserving 100BASE-TX signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ82A-E3/57T | Same VBR (77.9–86.1 V) and VC (113 V), but lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA = 110 °C/W) | Not AEC-Q101 qualified; suitable for commercial-grade consumer electronics, not automotive under-hood use | Select when board space is constrained and surge energy is limited to <400 W (e.g., USB port protection). |
| 1.5KE82A | Through-hole DO-201 package; identical electrical specs but higher mounting thermal resistance and no AEC-Q101 qualification | Requires wave soldering; incompatible with fully SMT automotive production lines and MSL-compliant reflow | Choose only for legacy through-hole designs or prototyping where automated SMT placement is unavailable. |
Compared with SMAJ82A-E3/57T and 1.5KE82A, the 1.5SMC82AHE3_A/I delivers automotive-grade reliability in a surface-mount package with full 1500 W surge capability - making it the sole option among the three qualified for AEC-Q101 and compatible with high-volume SMT assembly.
Availability
1.5SMC82AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface modules, and telecom line card designs requiring stable component supply with guaranteed AEC-Q101 compliance and long-term lifecycle support.
Supply support for 1.5SMC82AHE3_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, and protection devices with emphasis on high-reliability, high-power, and automotive-qualified components.
The 1.5SMC Series was developed specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where sustained surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC82AHE3_A/I under a 1500 W transient?
The 1.5SMC82AHE3_A/I has a maximum clamping voltage (VC) of 113 V when subjected to its rated peak pulse current of 13.3 A - corresponding to a 1500 W transient using the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and ensures downstream ICs see no more than 113 V during surge events. The 1.5SMC82AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC82AHE3_A/I suitable for automotive applications?
Yes, the 1.5SMC82AHE3_A/I is explicitly AEC-Q101 qualified, as confirmed by its "HE3" suffix and documentation in Vishay's 88303 datasheet. It undergoes rigorous stress testing including temperature cycling, HAST, and mechanical shock - meeting automotive requirements for engine control units, battery management systems, and ADAS sensors. The 1.5SMC82AHE3_A/I is rated for operation from –65 °C to +150 °C and supports lead-free reflow up to 260 °C (MSL Level 1).
What does the "_A/I" suffix mean in 1.5SMC82AHE3_A/I?
The "_A" denotes the voltage variant (82 V nominal) and AEC-Q101 qualification level for the 1.5SMC82AHE3_A/I series, while "/I" specifies packaging in a 13-inch diameter plastic tape and reel containing 3500 units - optimized for high-volume SMT placement. This differs from "/H" (7-inch reel, 850 units). The "HE3" portion confirms RoHS-compliant, AEC-Q101 qualified construction with matte tin plating.
How does the 1.5SMC82AHE3_A/I compare to bidirectional TVS diodes like 1.5SMC82CA?
The 1.5SMC82AHE3_A/I is unidirectional and features a cathode band for polarity-sensitive placement, whereas 1.5SMC82CA is bidirectional with no polarity marking and symmetric clamping in both directions. The 1.5SMC82AHE3_A/I offers lower leakage (<1 µA at 70.1 V) and is preferred for DC power rail protection where polarity is fixed. Bidirectional variants like 1.5SMC82CA are used for AC lines or differential signals - the 1.5SMC82AHE3_A/I is not interchangeable without circuit redesign.
What is the thermal resistance of the 1.5SMC82AHE3_A/I, and how does it affect layout?
The 1.5SMC82AHE3_A/I 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, as specified in Vishay document 88303. This value assumes minimum recommended pad layout; reducing pad area increases RθJA, risking thermal runaway during repetitive surges. For reliable operation at full 1500 W rating, maintain the specified pad dimensions and avoid excessive trace length or isolation - the 1.5SMC82AHE3_A/I must be placed near the protected node with low-inductance grounding.
1.5SMC82AHE3_A/I 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:
- Active
- 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_A/I FAQ
1.How can I place an order for 1.5SMC82AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82AHE3_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 1.5SMC82AHE3_A/I reliable?
The price and inventory of 1.5SMC82AHE3_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 1.5SMC82AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC82AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82AHE3_A/I?
1.5SMC82AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82AHE3_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 1.5SMC82AHE3_A/I?
For technical support, including 1.5SMC82AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC82AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82AHE3_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 1.5SMC82AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC82AHE3_A/I?
All 1.5SMC82AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82AHE3_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 1.5SMC82AHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC82AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82AHE3_A/I Tags
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