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Vishay General Semiconductor - Diodes Division 1.5SMC8.2CAHE3/9AT
- Part No.:
- 1.5SMC8.2CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2CAHE3/9AT.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,731
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Product details
Overview
1.5SMC8.2CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 8.2 V breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 7.02 V stand-off voltage (VWM), clamps to ≤12.1 V at 200 A peak pulse current (10/1000 µs), and delivers 1500 W peak pulse power. It is AEC-Q101 qualified and RoHS-compliant, used in automotive sensor signal lines and industrial I/O protection.
For engineers reviewing the 1.5SMC8.2CAHE3/9AT datasheet, 1.5SMC8.2CAHE3/9AT pinout, 1.5SMC8.2CAHE3/9AT application, or 1.5SMC8.2CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage under high surge, AEC-Q101 qualification for automotive use, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<200 µA at VWM), while the SMC package supports high surge handling (200 A IPPM) with minimal incremental surge resistance.
The device complies with J-STD-020 MSL Level 1 (peak reflow 260 °C), uses matte tin-plated leads, and is rated for operation from −65 °C to +150 °C. Its 10/1000 µs waveform response time is sub-nanosecond, and it meets UL 94 V-0 flammability requirements for the molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise voltage threshold where clamping begins under controlled test conditions |
| VWM | 7.02 V - maximum continuous reverse voltage before significant leakage; sets safe operating margin below VBR |
| VC @ IPPM | ≤12.1 V at 200 A (10/1000 µs) - actual clamped voltage during worst-case surge, critical for downstream IC survivability |
| PPPM | 1500 W - peak transient power absorption capacity, determines protection level against lightning or inductive switching events |
| IPPM | 200 A - maximum non-repetitive surge current the device sustains without failure under standardized waveform |
| TJ max. | +150 °C - maximum junction temperature, constrains thermal design when mounted on 8 mm × 8 mm copper pads |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, used to calculate temperature rise under DC power dissipation (PD = 6.5 W) |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 and J-STD-020 MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode in bidirectional mode | No polarity marking; terminals are functionally identical - device conducts equally in either direction during overvoltage |
| Cathode | Current exit terminal in forward bias; symmetrical with anode in bidirectional mode | Unmarked per datasheet - bidirectional operation eliminates cathode band identification requirement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signal lines without polarity constraints or external circuitry |
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control modules, ADAS sensors, and infotainment interfaces |
| 1500 W peak pulse power | Withstands high-energy transients from ISO 7637-2 Load Dump or IEC 61000-4-5 surge events in industrial environments |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<200 µA), and long-term parametric stability under thermal cycling |
| MSL Level 1 rating | Allows single-reflow soldering at 260 °C peak without moisture-induced damage, compatible with standard SMT assembly lines |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal line and ground to clamp fast transients before they reach the sensor interface IC. Use Value: Clamps to ≤12.1 V at 200 A, ensuring downstream ASICs with 12 V absolute maximum ratings remain within safe operating limits. |
Use Scenario: Shielding PLC digital input channels from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Primary overvoltage shunt element connected between field-side signal and common reference, absorbing energy before it reaches isolation barrier. Use Value: 1500 W peak power rating handles repetitive 10/1000 µs surges up to 0.01% duty cycle without degradation. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHY or RS-485 transceivers against lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: First-line transient suppressor on unshielded twisted pair inputs, working in concert with GDTs or MOVs in hybrid protection schemes. Use Value: Sub-nanosecond response time and low clamping voltage minimize stress on high-speed transceiver ESD structures. |
Use Scenario: Secondary-side surge suppression on 5–12 V DC output rails of wall adapters powering IoT devices. IC Role / Device Role / Timing Role: Final-stage TVS across regulated output to prevent overvoltage propagation to connected USB peripherals or microcontrollers. Use Value: 7.02 V stand-off voltage allows normal operation under nominal 8.2 V nominal rail while clamping >12 V faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Lower peak power (600 W), smaller SMB package (DO-214AA), VBR = 8.89–9.83 V, VC = 13.6 V @ 43.8 A | Not suitable for 1500 W surge events; limited to lower-energy transients in space-constrained consumer designs | Select when board area is constrained and surge threat level is reduced (e.g., internal signal lines vs. external ports) |
| 1.5KE8.2CA | Through-hole DO-15 package, same VBR/VC, but higher RθJA (~50 °C/W on infinite heatsink), no AEC-Q101 option | Lacks automotive qualification and SMT compatibility; requires manual or wave soldering | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ8.0CA and 1.5KE8.2CA, the 1.5SMC8.2CAHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC SMT packaging - making it the only option among the three qualified for production automotive electronics with automated assembly.
Availability
1.5SMC8.2CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O hardening, and telecom line interface applications requiring stable component supply, AEC-Q101 compliance, and high-volume SMT manufacturability.
Supply support for 1.5SMC8.2CAHE3/9AT 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where compact size, surge robustness, and qualification-grade reliability are mandatory.
FAQ
What does the "CA" suffix mean in 1.5SMC8.2CAHE3/9AT?
The "CA" suffix in 1.5SMC8.2CAHE3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., 1.5SMC8.2A), the CA version has no cathode marking and functions identically regardless of voltage polarity applied across its terminals, making it ideal for AC-coupled or differential signal protection.
Is 1.5SMC8.2CAHE3/9AT suitable for automotive applications?
Yes, 1.5SMC8.2CAHE3/9AT is AEC-Q101 qualified, as confirmed by its "HE3" suffix and Vishay documentation. It is specifically intended for automotive use cases such as sensor signal line protection, infotainment interfaces, and body control modules where reliability under temperature cycling, vibration, and high-energy transients is required.
What is the clamping voltage of 1.5SMC8.2CAHE3/9AT at rated surge current?
The 1.5SMC8.2CAHE3/9AT clamps to a maximum of 12.1 V when subjected to its rated 200 A peak pulse current (10/1000 µs waveform). This value is measured per standard test conditions and represents the upper limit of voltage seen by protected circuitry during worst-case transient events.
How does the "HE3" suffix differ from "E3" in 1.5SMC8.2CAHE3/9AT?
The "HE3" suffix in 1.5SMC8.2CAHE3/9AT indicates RoHS-compliant construction plus AEC-Q101 qualification, whereas "E3" alone denotes RoHS compliance only (commercial grade). The HE3 variant undergoes additional stress testing per AEC-Q101 for automotive reliability, including extended temperature cycling and accelerated life testing.
What is the recommended PCB pad layout for 1.5SMC8.2CAHE3/9AT?
Vishay specifies mounting 1.5SMC8.2CAHE3/9AT on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated thermal and surge performance. Deviating from this layout reduces power derating capability and may compromise 1500 W peak pulse power handling and thermal resistance (RθJA = 75 °C/W).
1.5SMC8.2CAHE3/9AT 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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)
1.5SMC8.2CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC8.2CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2CAHE3/9AT 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 1.5SMC8.2CAHE3/9AT reliable?
The price and inventory of 1.5SMC8.2CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2CAHE3/9AT?
1.5SMC8.2CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2CAHE3/9AT 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 1.5SMC8.2CAHE3/9AT?
For technical support, including 1.5SMC8.2CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC8.2CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2CAHE3/9AT 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 1.5SMC8.2CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2CAHE3/9AT?
All 1.5SMC8.2CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2CAHE3/9AT, 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 1.5SMC8.2CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC8.2CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2CAHE3/9AT Tags
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