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Vishay General Semiconductor - Diodes Division 1.5SMC8.2A-E3/9AT
- Part No.:
- 1.5SMC8.2A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2A-E3/9AT.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,748
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Product details
Overview
1.5SMC8.2A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 7.02 V stand-off voltage (VWM), 7.79–8.61 V breakdown voltage (VBR) at 10 mA, 12.1 V maximum clamping voltage (VC) at 124 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 DC power rail protection.
For engineers reviewing the 1.5SMC8.2A-E3/9AT datasheet, 1.5SMC8.2A-E3/9AT pinout, 1.5SMC8.2A-E3/9AT application, or 1.5SMC8.2A-E3/9AT equivalent, key selection criteria include clamping performance under 124 A surge, thermal resistance (RθJA = 75 °C/W), RoHS-compliant matte tin terminations, and SMC (DO-214AB) package compatibility with automated placement and J-STD-002 solderability.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages before they damage downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
The device is rated for repetitive 10/1000 μs pulses at 0.01% duty cycle, with derating above TA = 25 °C per Fig. 2. It supports operation from −65 °C to +150 °C junction temperature and meets MSL Level 1 (260 °C peak reflow), making it suitable for high-reliability commercial and AEC-Q101-qualified automotive variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.02 V - Maximum continuous reverse working voltage before leakage exceeds 200 μA; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 7.79–8.61 V at 10 mA - Tight 5% tolerance ensures predictable turn-on during transients; critical for coordination with protected IC thresholds. |
| VC (Clamping) | 12.1 V at 124 A - Limits voltage seen by downstream components during 1500 W surge; enables protection of 5 V or 3.3 V logic rails. |
| IPPM | 124 A - Peak pulse current capability with 10/1000 μs waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| PPPM | 1500 W - Peak pulse power handling capacity; determines survivability under high-energy transients like inductive switching. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or enclosed industrial environments. |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on standard 8 mm × 8 mm copper pads; informs PCB thermal design requirements. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; unidirectional configuration only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage events. |
| Anode | Reference node | Typically tied to system ground or lowest potential reference; completes conduction path during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables protection against high-energy transients (e.g., ISO 7637-2 Pulse 5a) without derating in compact SMC footprint. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<200 μA at VWM) across temperature and lifetime. |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard 260 °C lead-free reflow profiles. |
| RoHS-compliant, halogen-free option available | E3 suffix denotes RoHS compliance; M3 suffix adds halogen-free construction for stringent environmental compliance programs. |
| AEC-Q101 qualification path | HE3/HM3 variants exist for automotive use; this E3/9AT variant is commercial-grade but shares identical die and package design. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp spikes before reaching sensitive input stages. Use Value: Clamps to ≤12.1 V at 124 A, safeguarding 5 V tolerant transceivers and ADC front-ends without sacrificing signal integrity. |
Use Scenario: Shielding digital and analog I/O channels in programmable logic controllers from field-induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input/output terminals, coordinated with upstream fuses and downstream TVS arrays. Use Value: Withstands 1500 W pulses and operates up to +150 °C, ensuring reliability in hot, electrically noisy factory environments. |
| DC Power Rail Protection | Consumer Device USB/Power Port |
Use Scenario: Safeguarding 5 V or 12 V DC power distribution networks in embedded systems from inductive switching noise and hot-swap transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across rail-to-ground to shunt surge energy away from regulators and microcontrollers. Use Value: Low clamping voltage (12.1 V) prevents overvoltage stress on 12 V-rated components while maintaining fast <1 ns response. |
Use Scenario: Protecting USB Type-A/B power pins and auxiliary charging ports in portable electronics from ESD and cable-induced surges. IC Role / Device Role / Timing Role: First-line transient suppressor on VBUS line, placed immediately after connector to minimize trace inductance. Use Value: SMC package offers superior surge handling vs. smaller SOD-123 devices, supporting IEC 61000-4-2 Level 4 (15 kV air) with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower peak power (600 W), same VWM (6.4 V), higher VC (12.8 V at 49.2 A), SMB (DO-214AA) package (smaller footprint, higher RθJA). | Limited to lower-energy transients; less suitable for IEC 61000-4-5 or automotive load-dump scenarios. | Select when board space is constrained and surge energy is ≤600 W; verify thermal margin due to higher RθJA. |
| 1.5KE8.2A | Through-hole TO-204AE (DO-15) package, identical electrical specs (VWM = 7.02 V, VC = 12.1 V), but larger size and manual assembly requirement. | Used where legacy through-hole manufacturing or higher mechanical robustness is prioritized over SMT automation. | Choose for prototyping, repair, or high-vibration environments where SMT joint reliability is a concern. |
Compared with SMBJ8.0A and 1.5KE8.2A, the 1.5SMC8.2A-E3/9AT delivers 1500 W surge handling in an automated SMT package with optimized thermal performance (RθJA = 75 °C/W) - making it the preferred choice for volume production of automotive and industrial power-rail protectors requiring both high energy absorption and process efficiency.
Availability
1.5SMC8.2A-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply, RoHS compliance, and SMC-package compatibility with high-volume pick-and-place equipment.
Supply support for 1.5SMC8.2A-E3/9AT 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, precision, and application-specific optimization.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in demanding environments - targeting automotive, industrial, and telecom applications where robustness, repeatability, and automated manufacturability are essential.
FAQ
What is the clamping voltage of the 1.5SMC8.2A-E3/9AT under maximum rated surge current?
The 1.5SMC8.2A-E3/9AT has a maximum clamping voltage (VC) of 12.1 V at 124 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and reflects the upper limit of voltage imposed on protected circuitry during worst-case transient events. The 1.5SMC8.2A-E3/9AT maintains this clamping performance across its specified operating temperature range.
Is the 1.5SMC8.2A-E3/9AT RoHS-compliant and lead-free?
Yes, the 1.5SMC8.2A-E3/9AT carries the "E3" suffix, indicating full RoHS compliance per Directive 2011/65/EU and exemption 7a. It uses matte tin-plated terminations and contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE. The device also meets JESD 201 Class 2 whisker resistance requirements and is rated for 260 °C peak reflow per J-STD-020 MSL Level 1.
What does the "/9AT" suffix indicate in the 1.5SMC8.2A-E3/9AT part number?
The "/9AT" suffix specifies the packaging format: 13-inch diameter plastic tape and reel containing 3500 units. This configuration is optimized for high-speed SMT placement equipment and supports just-in-time manufacturing workflows. The "9AT" designation is distinct from "/57T" (7-inch reel, 850 units) and ensures correct feeder setup and inventory tracking in automated assembly lines using the 1.5SMC8.2A-E3/9AT.
Can the 1.5SMC8.2A-E3/9AT be used in bidirectional protection circuits?
No, the 1.5SMC8.2A-E3/9AT is a unidirectional TVS diode, identifiable by its cathode band marking and specified electrical parameters (e.g., VWM, VBR) for single-polarity operation. For bidirectional protection, Vishay offers the 1.5SMC8.2CA-E3/9AT variant - which shares the same package and power rating but provides symmetrical clamping in both directions. Using the 1.5SMC8.2A-E3/9AT in AC or dual-rail applications would result in forward conduction and failure.
What is the maximum operating temperature range for the 1.5SMC8.2A-E3/9AT?
The 1.5SMC8.2A-E3/9AT is rated for an operating junction and storage temperature range of −65 °C to +150 °C. This wide range supports deployment in under-hood automotive locations, industrial control cabinets, and outdoor telecom enclosures. Derating of peak pulse power begins above TA = 25 °C per Figure 2 in the datasheet, and thermal design must account for RθJA = 75 °C/W on standard 8 mm × 8 mm copper pads.
1.5SMC8.2A-E3/9AT 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC8.2A-E3/9AT FAQ
1.How can I place an order for 1.5SMC8.2A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2A-E3/9AT 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 1.5SMC8.2A-E3/9AT reliable?
The price and inventory of 1.5SMC8.2A-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2A-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2A-E3/9AT?
1.5SMC8.2A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2A-E3/9AT 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 1.5SMC8.2A-E3/9AT?
For technical support, including 1.5SMC8.2A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2A-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC8.2A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2A-E3/9AT 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 1.5SMC8.2A-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2A-E3/9AT?
All 1.5SMC8.2A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2A-E3/9AT, 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 1.5SMC8.2A-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC8.2A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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