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Vishay General Semiconductor - Diodes Division 1.5SMC82CAHE3_A/I
- Part No.:
- 1.5SMC82CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82CAHE3_A/I.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,503
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Product details
Overview
1.5SMC82CAHE3_A/I 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 82 V breakdown voltage (VBR = 77.9–86.1 V at IT = 1 mA), 1500 W peak pulse power (10/1000 µs), and clamps to ≤113 V at 13.3 A, making it suitable for automotive electronics, industrial sensor interfaces, and telecom line protection.
For engineers reviewing the 1.5SMC82CAHE3_A/I datasheet, 1.5SMC82CAHE3_A/I pinout, 1.5SMC82CAHE3_A/I application, or 1.5SMC82CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, and compliance with UL 497B surge protector requirements.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche junction to divert surge current away from downstream circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity-sensitive layout constraints.
Designed for high-reliability environments, the 1.5SMC82CAHE3_A/I meets AEC-Q101 stress testing for automotive use and is rated for continuous operation up to TJ = 150 °C. Thermal resistance is RθJA = 75 °C/W (on recommended 8.0 mm × 8.0 mm copper pads), supporting stable power dissipation under repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at IT = 1 mA - defines precise avalanche onset threshold for reliable triggering |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | ≤113 V at 13.3 A - clamping voltage limits protected IC stress during 10/1000 µs surges |
| PPPM | 1500 W - peak surge power handling capacity per single 10/1000 µs waveform |
| IPPM | 13.3 A - maximum non-repetitive surge current supported without degradation |
| TJ max. | +150 °C - enables deployment in under-hood automotive and high-ambient industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (reverse bias) | One side of symmetrical PN junction; functions identically to cathode under opposite polarity surge |
| Cathode | Current entry terminal (reverse bias) | Second side of symmetrical junction; no functional distinction from anode in bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions eliminates need for polarity-aware placement |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| UL 497B recognition | Underwriters Laboratories certified for telecom and industrial surge protector classification (QVGQ2, E136766) |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60 % RH; compatible with standard reflow profiles up to 260 °C peak |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and body control module inputs from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail (VBAT/GND) to clamp surges before LDO or MCU input. Use Value: Clamps 12 V system transients to ≤113 V, preventing latch-up or gate oxide damage in AEC-Q100 qualified ICs. |
Use Scenario: Shielding 4–20 mA current loop receivers and analog front-ends in PLC I/O modules from field-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across differential input pins to limit common-mode overvoltage. Use Value: Withstands 1500 W pulses while maintaining <1 µA leakage at 70.1 V, preserving signal integrity and ADC accuracy. |
| Telecom Interface Protection | Consumer Equipment AC/DC Input Stage |
|
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE controller inputs against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on RJ45 jack side, upstream of isolation transformers and data-line ESD arrays. Use Value: UL 497B certification ensures compliance with telecom surge safety standards; 13.3 A IPPM handles Category 3/4 lightning waveforms. |
Use Scenario: Secondary-side overvoltage suppression in offline SMPS after bridge rectifier, protecting bulk capacitor and controller IC. IC Role / Device Role / Timing Role: Bidirectional clamp across DC bus to absorb turn-off spikes from PFC stage or output rectifiers. Use Value: 1500 W rating absorbs repetitive switching energy without thermal runaway; RoHS-compliant HE3 suffix supports global regulatory compliance. |
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 PPPM (600 W), smaller SMB package (DO-214AA), VC = 137 V @ 4.4 A | Not AEC-Q101 qualified; UL 497B not claimed; suited for cost-sensitive consumer designs | Select when board space is constrained and surge energy is ≤600 W; verify thermal derating on smaller pad layout |
| 1.5KE82CA | Through-hole DO-201 package, same VBR/VC, PPPM = 1500 W, but higher RθJA (~100 °C/W) | Lacks AEC-Q101 and UL 497B certifications; incompatible with automated SMT assembly | Choose only for legacy through-hole designs or prototyping where rework tolerance outweighs production efficiency |
Compared with SMBJ85CA and 1.5KE82CA, the 1.5SMC82CAHE3_A/I uniquely combines AEC-Q101 qualification, UL 497B recognition, and SMC package manufacturability-enabling drop-in use in automotive and industrial SMT lines without layout or reliability compromise.
Availability
1.5SMC82CAHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom interface circuits, and consumer power supply designs requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC82CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5SMC Series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom surge protection where AEC-Q101 compliance and UL safety recognition are mandatory.
FAQ
What does the "CA" suffix mean in 1.5SMC82CAHE3_A/I?
The "CA" suffix in 1.5SMC82CAHE3_A/I indicates a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., 1.5SMC82A), this part has no cathode marking and delivers identical VBR, VC, and IPPM characteristics regardless of voltage polarity applied across its terminals. This simplifies PCB layout and enhances robustness in AC-coupled or floating signal paths.
Is 1.5SMC82CAHE3_A/I suitable for automotive applications?
Yes, 1.5SMC82CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix (RoHS-compliant + AEC-Q101). It has passed stress tests including high-temperature reverse bias, temperature cycling, and accelerated life testing required for under-hood and chassis-mounted electronics. Its 1500 W surge rating and 150 °C junction rating make it appropriate for protecting CAN/LIN transceivers, sensor signal chains, and power distribution nodes in vehicles.
What is the clamping voltage of 1.5SMC82CAHE3_A/I at its rated peak pulse current?
The clamping voltage (VC) of 1.5SMC82CAHE3_A/I is guaranteed to be ≤113 V at its rated peak pulse current (IPPM) of 13.3 A, measured using the standardized 10/1000 µs double-exponential waveform. This value reflects worst-case device behavior under surge conditions and ensures downstream components see no more than 113 V during transient events - critical for safeguarding 80 V-rated MOSFETs or 100 V-input regulators.
How does the SMC (DO-214AB) package of 1.5SMC82CAHE3_A/I compare thermally to smaller packages like SMB?
The SMC (DO-214AB) package used by 1.5SMC82CAHE3_A/I offers significantly better thermal performance than SMB (DO-214AA): RθJA is 75 °C/W (on 8.0 mm × 8.0 mm copper pads) versus ~100–120 °C/W for SMB devices. This allows 1.5SMC82CAHE3_A/I to sustain higher average power dissipation and recover faster between repetitive surges - essential in industrial motor drives or automotive alternator-regulator systems where multiple transients occur in quick succession.
Does 1.5SMC82CAHE3_A/I meet UL safety standards?
Yes, 1.5SMC82CAHE3_A/I is Underwriters Laboratories recognized under UL 497B (Surge Protective Devices) with file number E136766 for both unidirectional and bidirectional configurations. This certification confirms its suitability as a primary protector in telecom, industrial, and automotive applications where regulatory compliance for surge safety is mandatory - including insulation coordination, flammability (UL 94 V-0), and failure mode testing.
1.5SMC82CAHE3_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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC82CAHE3_A/I FAQ
1.How can I place an order for 1.5SMC82CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82CAHE3_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 1.5SMC82CAHE3_A/I reliable?
The price and inventory of 1.5SMC82CAHE3_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 1.5SMC82CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC82CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82CAHE3_A/I?
1.5SMC82CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82CAHE3_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 1.5SMC82CAHE3_A/I?
For technical support, including 1.5SMC82CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82CAHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC82CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82CAHE3_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 1.5SMC82CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC82CAHE3_A/I?
All 1.5SMC82CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82CAHE3_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 1.5SMC82CAHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC82CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82CAHE3_A/I Tags
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