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Vishay General Semiconductor - Diodes Division 1.5SMC82AHE3/9AT
- Part No.:
- 1.5SMC82AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82AHE3/9AT.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,949
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Product details
Overview
1.5SMC82AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. 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 - ideal for safeguarding automotive sensor signal lines against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC82AHE3/9AT datasheet, 1.5SMC82AHE3/9AT pinout, 1.5SMC82AHE3/9AT application, or 1.5SMC82AHE3/9AT equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and validated thermal resistance (RθJA = 75 °C/W) for reliable integration into automotive-grade PCB layouts requiring robust ESD and surge immunity.
Technical Context
The 1.5SMC82AHE3/9AT operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient overvoltages while maintaining low incremental surge resistance. Its cathode-band polarity marking ensures correct orientation during automated placement on SMC footprints.
Rated for -65 °C to +150 °C operating junction temperature and 0.01% duty cycle repetitive surges, it delivers stable clamping under 10/1000 μs waveforms when mounted on 8.0 mm × 8.0 mm copper pads - meeting UL 94 V-0 flammability and JESD201 Class 2 whisker resistance requirements.
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 breakdown |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - guaranteed avalanche onset range; ensures predictable turn-on during transients |
| VC (Clamping) | 113 V at 13.3 A IPPM - limits downstream voltage stress during 1500 W surge events |
| PPPM | 1500 W - peak pulse power handling with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 compliance |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient; informs heatsinking needs for sustained power dissipation |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| AEC-Q101 | Qualified - certified for automotive electronics 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 | Forward current entry / Reverse voltage reference | Connected to protected line ground or low-side return path in unidirectional configuration |
| Cathode | Avalanche conduction terminal | Connected to supply rail or signal source; band-marked end must face higher potential during surge |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive ECUs, ADAS sensors, and body control modules requiring long-term field stability |
| 1500 W peak pulse power | Withstands 10/1000 μs surges up to 13.3 A without degradation - exceeds ISO 7637-2 Pulse 5a requirements |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot across protected ICs, reducing risk of latch-up or gate oxide damage in MOSFET drivers |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; supports high-volume SMT assembly |
| Glass-passivated junction | Enhances long-term stability and leakage immunity versus epoxy-passivated alternatives under humidity and thermal cycling |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach sensitive input stages. Use Value: Limits induced voltage to ≤113 V during 10/1000 μs surges, preserving signal integrity and preventing reset or damage to 5 V or 3.3 V interface ICs. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers subjected to relay coil flyback and EMI coupling from adjacent motor drives. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb repetitive 1500 W pulses without derating. Use Value: Maintains <1 μA leakage at 70.1 V, ensuring clean logic-level detection while surviving >100,000 surge cycles per IEC 61000-4-5. |
| Telecom Power Supply Input | Consumer Appliance Motor Control |
Use Scenario: Front-end protection of AC/DC adapters and PoE injectors against lightning-induced surges on primary-side DC rails. IC Role / Device Role / Timing Role: Primary-side TVS shunting surge energy to ground before it reaches bulk capacitors and controller ICs. Use Value: Clamps 1 kV/0.5 kA surges to <113 V within nanoseconds, preventing overvoltage failure of PWM controllers and optocouplers. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals to clamp inductive kickback during MOSFET switching. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) and maintains stable VBR after repeated 13.3 A pulses - extends motor driver lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A-E3/52T | Lower PPPM (600 W), SMB package (smaller footprint), VC = 123 V at 4.9 A | Not AEC-Q101 qualified; suited for cost-sensitive consumer designs with lower surge exposure | Select when board space is constrained and 1500 W rating is not required |
| 1.5KE82A | Through-hole DO-201 package, same VBR/VC, but RθJA ≈ 100 °C/W and no AEC-Q101 qualification | Limited to non-automotive industrial use due to packaging and qualification gaps | Choose only for legacy through-hole designs where SMT conversion is impractical |
Compared with SMBJ80A-E3/52T and 1.5KE82A, the 1.5SMC82AHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W surge capacity in SMC form factor, and 75 °C/W thermal resistance - making it the only option among the three suitable for new automotive sensor module designs requiring zero-layout-change migration to high-reliability production.
Availability
1.5SMC82AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC82AHE3/9AT 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5SMC Series was developed specifically for surface-mount transient suppression in space-constrained, high-surge environments - emphasizing AEC-Q101 qualification, low clamping ratios, and compatibility with automated manufacturing.
FAQ
What is the clamping voltage of the 1.5SMC82AHE3/9AT at its rated peak pulse current?
The 1.5SMC82AHE3/9AT has a maximum clamping voltage (VC) of 113 V at 13.3 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and reflects worst-case device behavior across temperature and process variation - critical for validating voltage margins in protected circuits.
Is the 1.5SMC82AHE3/9AT suitable for automotive applications?
Yes, the 1.5SMC82AHE3/9AT is AEC-Q101 qualified and designated with the "HE3" suffix, indicating RoHS-compliant construction and full automotive stress testing (HTGB, HTRB, TCT). It is approved for use in engine control units, ADAS camera modules, and body electronics where transient immunity and long-term reliability are mandatory.
What does the "9AT" suffix indicate in 1.5SMC82AHE3/9AT?
The "9AT" suffix denotes packaging: 13-inch diameter plastic tape-and-reel format containing 3500 units per reel. This differs from "57T" (7-inch reel, 850 units) and supports high-volume SMT line feeding. The "HE3" portion confirms AEC-Q101 qualification and RoHS compliance per Vishay's ordering nomenclature.
How does the thermal resistance of the 1.5SMC82AHE3/9AT affect PCB layout?
The 1.5SMC82AHE3/9AT has a typical RθJA of 75 °C/W, meaning junction temperature rises 75 °C above ambient per watt dissipated. To maintain TJ ≤ 150 °C at 6.5 W steady-state power, ambient must stay ≤ 55 °C - requiring ≥8.0 mm × 8.0 mm copper pads per terminal as specified in Vishay's mounting recommendations.
Can the 1.5SMC82AHE3/9AT be used in bidirectional configurations?
No - the 1.5SMC82AHE3/9AT is unidirectional only, indicated by the "A" suffix (vs. "CA" for bidirectional variants like 1.5SMC82CA). Its cathode band must be oriented toward the higher-potential side of the protected line; using it in reverse or across AC signals will result in forward conduction and failure.
1.5SMC82AHE3/9AT 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)
1.5SMC82AHE3/9AT FAQ
1.How can I place an order for 1.5SMC82AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82AHE3/9AT 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 1.5SMC82AHE3/9AT reliable?
The price and inventory of 1.5SMC82AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82AHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC82AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82AHE3/9AT?
1.5SMC82AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82AHE3/9AT 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 1.5SMC82AHE3/9AT?
For technical support, including 1.5SMC82AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82AHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC82AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82AHE3/9AT 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 1.5SMC82AHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC82AHE3/9AT?
All 1.5SMC82AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82AHE3/9AT, 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 1.5SMC82AHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC82AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82AHE3/9AT Tags
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