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Vishay General Semiconductor - Diodes Division 1.5SMC82A-E3/57T
- Part No.:
- 1.5SMC82A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82A-E3/57T.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,634
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Product details
Overview
1.5SMC82A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power (10/1000 µs), 70.1 V standoff voltage, and 113 V clamping voltage at 13.3 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the 1.5SMC82A-E3/57T datasheet, 1.5SMC82A-E3/57T pinout, 1.5SMC82A-E3/57T application, or 1.5SMC82A-E3/57T equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, thermal resistance (75 °C/W junction-to-ambient), unidirectional polarity marking, RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 70.1 V), but triggers avalanche breakdown when transient voltage exceeds its 77.9–86.1 V breakdown range (tested at 1 mA), diverting surge current away from downstream components. Its glass-passivated junction ensures stable performance and low incremental surge resistance.
The device is rated for repetitive 10/1000 µs surges at 0.01% duty cycle, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and maintains operation across –65 °C to +150 °C junction temperature. Thermal design must account for RθJA = 75 °C/W on standard 8.0 mm × 8.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains high-energy transients without failure, suitable for lightning and inductive switching events |
| Standoff Voltage (VWM) | 70.1 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal rail |
| Clamping Voltage (VC @ IPPM) | 113 V - maximum voltage seen by protected device during 13.3 A surge; defines worst-case overvoltage stress |
| Breakdown Voltage (VBR) | 77.9–86.1 V @ 1 mA - precise avalanche onset range used to verify conformance and ensure margin vs. VWM |
| Junction Temperature Range | –65 °C to +150 °C - enables deployment in under-hood automotive and industrial environments with wide ambient swings |
| Thermal Resistance (RθJA) | 75 °C/W - determines required PCB copper area and airflow for thermal management at 6.5 W steady-state dissipation |
| Moisture Sensitivity Level | MSL Level 1 - no floor life limitation or bake requirement prior to reflow; compatible with standard SMT assembly |
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. Polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage event |
| Anode | Reference/return node | Typically tied to system ground or lower-potential rail; completes shunt path for transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating in compact SMC footprint |
| Glass passivated chip junction | Ensures long-term stability of breakdown voltage and leakage current under thermal cycling and humidity stress |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving clamping accuracy |
| RoHS-compliant, halogen-free option available | Meets environmental compliance requirements for automotive and industrial end equipment without sacrificing performance |
| AEC-Q101 qualification option | Validated reliability for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients up to ±100 V. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges before they reach LDOs and microcontrollers. Use Value: Limits voltage to ≤113 V during 13.3 A transients, preserving 16 V-rated input stages of automotive-grade PMICs and CAN transceivers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in PLC I/O modules exposed to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to suppress sub-100 ns ESD events and 10–100 µs relay-switching spikes. Use Value: Maintains signal integrity with <1 µA leakage at 70.1 V, while clamping 8 kV contact ESD to <113 V within nanoseconds. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Unidirectional TVS installed on primary side of DC-DC converters to absorb common-mode surges coupled onto supply lines. Use Value: Withstands 1500 W pulses without degradation, enabling compliance with ITU-T K.20/21 immunity standards for outdoor plant gear. |
Use Scenario: Shielding BLDC motor driver inputs in washing machines and HVAC systems from commutation spikes generated by internal relays and triacs. IC Role / Device Role / Timing Role: Fast-response TVS placed upstream of gate drivers and current sense amplifiers to prevent latch-up or overvoltage damage. Use Value: Clamps 600 V transients to 113 V within <1 ns, protecting 100 V-rated MOSFETs and op-amps without adding propagation delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ82A-E3/52 | Lower peak pulse power (600 W), SMB (DO-214AA) package, same VWM/VC ratings | Not suitable for 1500 W surge events; limited to lower-energy IEC 61000-4-2/4-4 environments | Select only when board space is constrained and surge threat level is ≤600 W; requires layout revision due to smaller footprint |
| 1.5KE82A | Through-hole DO-201 package, identical electrical specs but higher RθJA (~100 °C/W), no MSL rating | Not compatible with automated SMT assembly; unsuitable for high-density or reflow-only production | Choose only for prototyping or legacy through-hole designs where thermal margin allows higher junction temperature rise |
Compared with SMBJ82A-E3/52 and 1.5KE82A, the 1.5SMC82A-E3/57T delivers full 1500 W surge handling in an MSL Level 1 SMT package-enabling automotive-grade reliability, automated manufacturing, and thermal performance critical for high-power industrial interfaces.
Availability
1.5SMC82A-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface design, telecom infrastructure, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC82A-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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific performance.
The 1.5SMC Series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and telecom systems where space, thermal performance, and surge immunity are critical.
FAQ
What is the standoff voltage (VWM) of the 1.5SMC82A-E3/57T?
The 1.5SMC82A-E3/57T has a standoff voltage (VWM) of 70.1 V, meaning it remains in high-impedance state with <1 µA leakage up to this reverse voltage. This value ensures compatibility with 72 V nominal systems while maintaining sufficient margin below the 77.9–86.1 V breakdown range. Designers must confirm that 70.1 V is below the absolute maximum rating of the protected IC or MOSFET.
Does the 1.5SMC82A-E3/57T meet automotive qualification standards?
The base 1.5SMC82A-E3/57T is RoHS-compliant commercial grade. However, Vishay offers AEC-Q101 qualified versions under ordering codes like 1.5SMC82AHE3_A/H. The 1.5SMC82A-E3/57T itself is not AEC-Q101 certified, so for automotive applications requiring qualification, the HE3-suffixed variant must be specified and sourced separately.
What is the clamping voltage of the 1.5SMC82A-E3/57T at its rated peak pulse current?
The 1.5SMC82A-E3/57T clamps to a maximum of 113 V at its rated peak pulse current of 13.3 A (10/1000 µs waveform). This clamping voltage defines the worst-case overvoltage imposed on downstream components during surge events and must be verified against the protected circuit's voltage tolerance-e.g., ensuring it stays below the 120 V absolute maximum rating of many automotive gate drivers.
How does the SMC (DO-214AB) package of the 1.5SMC82A-E3/57T compare thermally to SMB (DO-214AA)?
The SMC package of the 1.5SMC82A-E3/57T provides lower thermal resistance than SMB: RθJA = 75 °C/W (vs. ~100 °C/W for SMBJ variants) when mounted on 8.0 mm × 8.0 mm copper pads. This allows higher sustained power dissipation and better reliability under repeated surge stress, making the 1.5SMC82A-E3/57T preferable for high-duty-cycle industrial applications.
Is the 1.5SMC82A-E3/57T unidirectional or bidirectional?
The 1.5SMC82A-E3/57T is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts surge current only in reverse bias (cathode to anode), making it suitable for DC rail protection where polarity is fixed. For AC or bidirectional signal lines, a "CA"-suffixed part like 1.5SMC82CA would be required instead.
1.5SMC82A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC82A-E3/57T FAQ
1.How can I place an order for 1.5SMC82A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82A-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 1.5SMC82A-E3/57T reliable?
The price and inventory of 1.5SMC82A-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 1.5SMC82A-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC82A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82A-E3/57T?
1.5SMC82A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82A-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 1.5SMC82A-E3/57T?
For technical support, including 1.5SMC82A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82A-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC82A-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82A-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 1.5SMC82A-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC82A-E3/57T?
All 1.5SMC82A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82A-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 1.5SMC82A-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC82A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82A-E3/57T Tags
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