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Vishay General Semiconductor - Diodes Division 1.5SMC82CAHM3_A/H
- Part No.:
- 1.5SMC82CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82CAHM3_A/H.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,214
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Product details
Overview
1.5SMC82CAHM3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 70.1 V standoff 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 sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC82CAHM3_A/H datasheet, 1.5SMC82CAHM3_A/H pinout, 1.5SMC82CAHM3_A/H application, or 1.5SMC82CAHM3_A/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMC (DO-214AB) package dimensions, thermal resistance data, and real-world design context for surge immunity validation and layout integration.
Technical Context
The 1.5SMC82CAHM3_A/H operates as a bidirectional clamping device with symmetrical avalanche behavior in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at VWM), while the low incremental surge resistance supports rapid energy diversion during ESD or lightning-induced transients.
Rated for 150 °C maximum junction temperature and compliant with J-STD-020 MSL Level 1 (peak reflow 260 °C), it supports lead-free reflow assembly. The halogen-free, RoHS-compliant HM3 suffix confirms compliance with JEDEC JESD201 Class 2 whisker resistance and UL 94 V-0 molding compound requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 70.1 V - Maximum continuous reverse voltage before significant conduction; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 77.9–86.1 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 113 V at 13.3 A (10/1000 µs) - Peak voltage seen by protected circuit under rated surge; critical for downstream IC survivability |
| PPPM (Peak Pulse Power) | 1500 W - Sustained surge energy handling capability per single 10/1000 µs event; enables IEC 61000-4-5 Level 4 compliance |
| RθJA (Thermal Resistance) | 75 °C/W - Junction-to-ambient thermal impedance on standard 8 mm × 8 mm copper pads; informs derating above 25 °C ambient |
| TJmax | 150 °C - Absolute maximum junction temperature; sets upper limit for thermal design and lifetime reliability |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including HTOL, TC, and ESD testing; required for under-hood and ADAS applications |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); cathode band absent - terminals are symmetric and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Terminal 1 | AC input node (bidirectional) | Connects to line under protection; conducts during negative transients relative to Terminal 2 |
| Cathode / Terminal 2 | AC input node (bidirectional) | Connects to line under protection; conducts during positive transients relative to Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signal lines without polarity concerns - eliminates need for dual unidirectional devices |
| 1500 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) with proper PCB layout and grounding |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive environments including temperature cycling, humidity bias, and mechanical shock - suitable for engine control and body electronics |
| Halogen-free & RoHS-compliant | Fulfills environmental compliance requirements for EU, China RoHS, and automotive OEM sustainability mandates |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile use without baking - reduces manufacturing overhead |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground, clamping fast-rising transients before they reach precision amplifier inputs or communication ICs. Use Value: Maintains signal integrity during 12 V/24 V system transients; prevents latch-up or permanent damage to 16-bit ADCs and isolated signal conditioners. |
Use Scenario: Shielding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: Primary overvoltage clamp at connector entry point, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Limits transient voltage to <113 V, ensuring downstream op-amps and microcontrollers remain within absolute maximum ratings during 2 kV EFT events. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Safeguarding Ethernet PHYs, DSL line drivers, and POTS interface ICs from lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: First-stage protection device across differential pairs (e.g., TX+/TX−), operating in symmetrical mode to preserve common-mode rejection. Use Value: Clamps common-mode surges to ≤113 V while maintaining <1 pF junction capacitance - avoids signal distortion at 100 Mbps+ data rates. |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V DC outputs of wall adapters and USB PD chargers exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Fast-response shunt protector placed after DC-DC converter output filter, absorbing residual spikes not attenuated by LC stages. Use Value: Prevents overvoltage damage to connected smartphones, IoT hubs, and peripherals during output short-circuit recovery or regulator fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower peak power (600 W), smaller SMB package (DO-214AA), higher VC (137 V at 4.4 A) | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges in space-constrained consumer designs | Select when board area is critical and surge threat level is ≤1 kV; verify clamping margin with downstream IC VDS(max) |
| 1.5KE82CA | Through-hole TO-204AE (DO-15) package, same VWM/VBR, identical 1500 W rating but higher RθJA (100 °C/W) | Requires wave soldering or hand-soldering; unsuitable for high-density SMT lines or automated placement | Choose only for legacy through-hole systems or prototyping where rework tolerance outweighs production efficiency |
Compared with SMBJ85CA and 1.5KE82CA, the 1.5SMC82CAHM3_A/H delivers optimal balance of high-energy surge handling, AEC-Q101 qualification, and SMT manufacturability - making it the preferred choice for automotive and industrial applications demanding both reliability and scalability.
Availability
1.5SMC82CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1.5SMC82CAHM3_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, efficiency, and application-specific optimization.
The 1.5SMC Series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the 1.5SMC82CAHM3_A/H under a 10/1000 µs surge?
The 1.5SMC82CAHM3_A/H has a maximum clamping voltage (VC) of 113 V when subjected to a 13.3 A peak pulse current with a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the 1.5SMC82CAHM3_A/H qualified for automotive applications?
Yes, the 1.5SMC82CAHM3_A/H carries the HM3 suffix, confirming it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness - validating its suitability for under-hood, ADAS, and body electronics applications where reliability under thermal and electrical stress is mandatory.
What package type does the 1.5SMC82CAHM3_A/H use, and what are its key mechanical features?
The 1.5SMC82CAHM3_A/H uses the SMC (DO-214AB) surface-mount package, measuring 7.75 mm × 6.22 mm × 2.62 mm. Key features include UL 94 V-0 flammability-rated molding compound, matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and MSL Level 1 rating - enabling direct placement into standard reflow profiles without baking or special handling.
How does the bidirectional nature of the 1.5SMC82CAHM3_A/H affect its circuit implementation?
As a bidirectional TVS, the 1.5SMC82CAHM3_A/H provides symmetrical clamping in both polarities - meaning it protects AC-coupled signals, differential buses (e.g., RS-485, CAN), or floating nodes without requiring orientation awareness during placement. Unlike unidirectional variants, it has no cathode band marking, simplifying layout and eliminating risk of reverse installation errors in high-volume manufacturing.
What is the thermal resistance and power derating behavior of the 1.5SMC82CAHM3_A/H?
The 1.5SMC82CAHM3_A/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. Derating follows Figure 2 in Vishay document 88303: power capability drops linearly above 25 °C ambient, reaching ~50 % of rated 6.5 W at 100 °C ambient - requiring thermal-aware PCB layout for sustained operation in enclosed enclosures or high-temperature environments.
1.5SMC82CAHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC82CAHM3_A/H FAQ
1.How can I place an order for 1.5SMC82CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82CAHM3_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 1.5SMC82CAHM3_A/H reliable?
The price and inventory of 1.5SMC82CAHM3_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 1.5SMC82CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC82CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82CAHM3_A/H?
1.5SMC82CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82CAHM3_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 1.5SMC82CAHM3_A/H?
For technical support, including 1.5SMC82CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82CAHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC82CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82CAHM3_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 1.5SMC82CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC82CAHM3_A/H?
All 1.5SMC82CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82CAHM3_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 1.5SMC82CAHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC82CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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