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Vishay General Semiconductor - Diodes Division 1.5SMC8.2A-E3/57T
- Part No.:
- 1.5SMC8.2A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2A-E3/57T.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:833
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Product details
Overview
1.5SMC8.2A-E3/57T 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 7.79–8.61 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 200 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC8.2A-E3/57T datasheet, 1.5SMC8.2A-E3/57T pinout, 1.5SMC8.2A-E3/57T application, or 1.5SMC8.2A-E3/57T equivalent, key selection criteria include unidirectional polarity, SMC (DO-214AB) package compatibility, clamping performance under 200 A surge, RoHS-compliant commercial-grade qualification, and thermal resistance (RθJA = 75 °C/W) for board-level thermal design.
Technical Context
The 1.5SMC8.2A-E3/57T operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ps) and low incremental surge resistance. Its clamping action begins at VWM = 7.02 V and limits transient energy to ≤12.1 V at IPPM = 200 A, ensuring reliable protection of downstream MOSFETs and ICs during inductive switching events.
Rated for TJ = –65 °C to +150 °C operation and MSL Level 1 (260 °C reflow), it supports automated SMT placement on standard PCB copper pads (8.0 mm × 8.0 mm per terminal). The cathode band marking enables unambiguous polarity identification, critical for correct integration into DC-biased protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA test current - defines precise avalanche onset window for predictable triggering |
| VWM | 7.02 V - maximum continuous reverse voltage before leakage exceeds 200 µA, sets operating margin below breakdown |
| VC @ IPPM | 12.1 V at 200 A (10/1000 µs) - peak clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak transient power dissipation capacity, enabling protection against lightning-induced surges per IEC 61000-4-5 |
| IFSM | 200 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction during fault conditions |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads, informs derating above 25 °C |
| TJ max | +150 °C - maximum junction temperature, constrains sustained power dissipation and layout thermal design |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal / Surge current sink | Connected to protected line (e.g., 5 V rail, CAN_H); band-marked end ensures correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 Level 4 (4 kV surge) when properly mounted on 8 mm × 8 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during transients, protecting 5 V logic and analog front-ends without overdesigning margins |
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %), low leakage (<200 µA at VWM), and long-term reliability under thermal cycling |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning, reducing manufacturing complexity |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental regulations; suitable for consumer, industrial, and non-AEC-Q101 automotive subsystems |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 5 V supply and signal lines of wheel speed sensors exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches the sensor ASIC or microcontroller input. Use Value: Limits voltage to ≤12.1 V during 200 A surges, preventing latch-up or gate oxide damage in 5 V CMOS interface circuitry. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff at 7.02 V allows normal 24 V operation while clamping >100 V spikes to safe levels. Use Value: Enables direct connection to industrial field wiring without external series impedance, simplifying input stage design. |
| USB Power Delivery Line | DC Motor Driver Gate Protection |
Use Scenario: Suppressing ESD and inductive kickback on VBUS lines in USB-C PD adapters rated up to 20 V. IC Role / Device Role / Timing Role: Fast-acting unidirectional clamp placed between VBUS and GND, upstream of buck converter input. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within <1 ns, preserving integrity of primary-side controller ICs. |
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during motor commutation. IC Role / Device Role / Timing Role: Connected anode-to-GND, cathode-to-gate, providing low-impedance path for transient current. Use Value: Prevents gate-source overvoltage exceeding ±20 V, avoiding unintended turn-on or oxide breakdown in 60 V-rated MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower PPPM (600 W), same VWM (6.4 V), higher VC (12.8 V at 49.2 A), SMB package (smaller footprint) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when space-constrained layouts prioritize footprint over surge rating |
| 1.5KE8.2A | Through-hole DO-201 package, identical VBR/VC, but slower thermal response and no MSL Level 1 rating | Not compatible with automated SMT assembly; requires wave solder or hand solder | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with 1.5SMC8.2A-E3/57T, SMBJ8.0A trades 60 % less surge capacity for 30 % smaller board area, while 1.5KE8.2A retains electrical equivalence but eliminates SMT manufacturability - making 1.5SMC8.2A-E3/57T the optimal choice for high-reliability, volume SMT production requiring 1500 W clamping.
Availability
1.5SMC8.2A-E3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, USB-C power delivery systems, and DC motor driver gate protection requiring stable component supply across extended production lifecycles.
Supply support for 1.5SMC8.2A-E3/57T 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, optoelectronics, and passive components for demanding industrial and automotive environments.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in space-constrained, high-surge applications - balancing 1500 W power handling, low clamping voltage, and full MSL Level 1 reflow compatibility.
FAQ
What is the exact breakdown voltage range for 1.5SMC8.2A-E3/57T?
The 1.5SMC8.2A-E3/57T has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, measured per ANSI/IEEE C62.35. This tight 5 % tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margining in 5 V and 8 V systems.
Is 1.5SMC8.2A-E3/57T suitable for automotive applications?
Yes, 1.5SMC8.2A-E3/57T is RoHS-compliant and qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes. The base 1.5SMC8.2A-E3/57T variant is commercial-grade but widely used in non-safety-critical automotive subsystems such as body control modules and sensor interfaces where full AEC-Q101 validation is not mandated.
What does the "-E3/57T" suffix indicate in 1.5SMC8.2A-E3/57T?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "57T" specifies packaging in 7-inch diameter plastic tape and reel containing 850 units. This format ensures compatibility with high-speed pick-and-place equipment and meets IPC-J-STD-020 moisture sensitivity requirements (MSL Level 1).
How does the clamping voltage of 1.5SMC8.2A-E3/57T compare to its stand-off voltage?
The 1.5SMC8.2A-E3/57T clamps to 12.1 V at 200 A (10/1000 µs), which is 72 % above its 7.02 V stand-off voltage (VWM). This clamping ratio of ~1.72 ensures sufficient margin below typical 15 V absolute maximum ratings of protected ICs while maintaining low leakage (<200 µA) during normal operation.
Can 1.5SMC8.2A-E3/57T be used in bidirectional configurations?
No - 1.5SMC8.2A-E3/57T is strictly unidirectional, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the 1.5SMC8.2CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and no polarity marking.
1.5SMC8.2A-E3/57T 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-E3/57T FAQ
1.How can I place an order for 1.5SMC8.2A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2A-E3/57T 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-E3/57T reliable?
The price and inventory of 1.5SMC8.2A-E3/57T 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-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2A-E3/57T?
1.5SMC8.2A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2A-E3/57T 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-E3/57T?
For technical support, including 1.5SMC8.2A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2A-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC8.2A-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2A-E3/57T 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-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2A-E3/57T?
All 1.5SMC8.2A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2A-E3/57T, 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-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC8.2A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2A-E3/57T Tags
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