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Vishay General Semiconductor - Diodes Division 1.5SMC82A-M3/57T
- Part No.:
- 1.5SMC82A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82A-M3/57T.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,775
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Product details
Overview
1.5SMC82A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. It features a 70.1 V stand-off voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 V maximum clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - ideal for safeguarding power rails and I/O lines in automotive and industrial control modules.
For engineers reviewing the 1.5SMC82A-M3/57T datasheet, 1.5SMC82A-M3/57T pinout, 1.5SMC82A-M3/57T application, or 1.5SMC82A-M3/57T equivalent, this device delivers verified clamping performance, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification readiness - critical for ESD and lightning transient protection in safety-critical embedded systems.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its VWM threshold while maintaining low leakage (<1 µA at 70.1 V). Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and surge (IEC 61000-4-5) events.
The 1.5SMC82A-M3/57T is thermally rated for TJ = –65 °C to +150 °C, with RθJA = 75 °C/W and RθJL = 15 °C/W, and is specified for repetitive 0.01% duty cycle pulses. Its cathode-band polarity marking and matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 70.1 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC working margin. |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - Tight 5% tolerance ensures predictable turn-on across temperature and production lots. |
| VC (Clamping) | 113 V at 13.3 A (10/1000 µs) - Limits downstream voltage stress during surge events to protect 100 V-rated components. |
| PPPM | 1500 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended pad layout. |
| IPPM | 13.3 A - Peak pulse current rating directly tied to clamping voltage; enables precise coordination with upstream fuses or polyfuses. |
| TJ max | +150 °C - Supports operation in under-hood automotive environments and sealed industrial enclosures without derating. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pads required for full 1500 W rating. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads; cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side reference | Enables unidirectional clamping from cathode to anode; must be routed to lowest impedance ground path for effective surge shunting. |
| Cathode | Current exit terminal in forward bias; connected to line/pin being protected | Band-marked end; reverse-biased during normal operation; conducts only during overvoltage events to clamp to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge testing on 24 V and 48 V industrial buses without degradation. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., <100 ns edges), improving protection margin for sensitive gate drivers. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances in automotive electronics. |
| MSL Level 1 (260 °C peak reflow) | Allows single-pass lead-free reflow assembly without baking or special handling, reducing manufacturing cost and risk. |
| AEC-Q101 qualification ready | Base P/NHM3 variant (e.g., 1.5SMC82AHM3_A/H) is fully qualified - enables drop-in qualification path for automotive ECUs and ADAS sensors. |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs in body control modules against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges >80 V before reaching DC/DC converters. Use Value: Clamps to 113 V at 13.3 A, limiting stress on 100 V-rated MOSFETs and ensuring system reset instead of latch-up during 120 V/50 ms load dump events. |
Use Scenario: Shielding analog input channels (e.g., 4–20 mA loops) in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on signal line, paired with series current-limiting resistor and low-pass RC filter. Use Value: Sub-1 ns response prevents >113 V spikes from damaging precision op-amps or ADC front-ends, preserving measurement integrity during 1 kV EFT bursts. |
| Telecom Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: Safeguarding PoE-powered equipment (IEEE 802.3af/at) DC inputs against induced lightning surges on outdoor Ethernet runs. IC Role / Device Role / Timing Role: Primary clamping device on 48 V DC input, positioned ahead of hot-swap controller and primary DC/DC stage. Use Value: 1500 W rating handles 10/1000 µs surges up to 1.5 kV (line-to-ground), preventing latch-up in IEEE 802.3bt Type 4 PD controllers. |
Use Scenario: Protecting high-side gate driver ICs in 3-phase inverters from Miller-induced voltage spikes during IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Local clamping diode across gate-to-source of power devices, referenced to driver ground. Use Value: Low VC/IPPM ratio limits gate overvoltage to <113 V, avoiding unintended turn-on and shoot-through in 600 V+ motor drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A-T | Lower PPPM (600 W), higher VC (129 V at 9.3 A), SMB package (smaller thermal mass) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy is ≤600 W; verify thermal design with RθJA = 110 °C/W. |
| 1.5KE82A | Through-hole DO-201 package, same VBR/VC, but slower response and no MSL Level 1 rating | Not suitable for automated SMT lines; requires wave soldering; incompatible with high-density PCB layouts | Choose only for legacy through-hole designs or prototyping where reflow compatibility and AEC-Q101 path are not required. |
Compared with SMBJ80A-T and 1.5KE82A, the 1.5SMC82A-M3/57T uniquely combines 1500 W surge capacity, SMT scalability, halogen-free compliance, and AEC-Q101 qualification readiness - making it the preferred choice for volume automotive and industrial production requiring long-term supply stability and process robustness.
Availability
1.5SMC82A-M3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom power feeds, and motor drive gate driver protection requiring stable component supply, consistent M3-grade material compliance, and full traceability from wafer to reel.
Supply support for 1.5SMC82A-M3/57T 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, ruggedness, and automotive-grade qualification.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge immunity and AEC-Q101 readiness are mandatory.
FAQ
What is the maximum clamping voltage of the 1.5SMC82A-M3/57T under standard test conditions?
The 1.5SMC82A-M3/57T has a maximum clamping voltage (VC) of 113 V when subjected to a 10/1000 µs waveform at 13.3 A peak pulse current. This value is measured per JEDEC standards and reflects worst-case clamping performance at TA = 25 °C with proper PCB thermal pads. The 1.5SMC82A-M3/57T maintains this clamping level across its operational temperature range, ensuring predictable protection for downstream 100 V-rated components.
Is the 1.5SMC82A-M3/57T suitable for automotive applications requiring AEC-Q101 qualification?
The base 1.5SMC82A-M3/57T is halogen-free and RoHS-compliant but not itself AEC-Q101 qualified; however, the HM3 variant (e.g., 1.5SMC82AHM3_A/H) carries full AEC-Q101 qualification. The 1.5SMC82A-M3/57T shares identical electrical characteristics, package, and thermal behavior - enabling seamless qualification migration. For production automotive use, specify the HM3 suffix version of the 1.5SMC82A-M3/57T family.
What is the standoff voltage (VWM) of the 1.5SMC82A-M3/57T, and how does it relate to system operating voltage?
The 1.5SMC82A-M3/57T has a standoff voltage (VWM) of 70.1 V, meaning it remains non-conductive below this reverse voltage. For reliable operation, the system's maximum continuous DC or RMS AC voltage must stay ≤ VWM - e.g., it is appropriate for 60 V nominal systems (like 48 V automotive batteries with 20% tolerance) but not for 72 V or higher rails. This ensures low leakage (<1 µA) and avoids false triggering during normal operation.
How does the SMC (DO-214AB) package of the 1.5SMC82A-M3/57T impact thermal performance?
The SMC (DO-214AB) package of the 1.5SMC82A-M3/57T delivers RθJA = 75 °C/W and RθJL = 15 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This thermal design enables full 1500 W surge dissipation without exceeding TJ = 150 °C. Reducing pad size or omitting thermal vias increases junction temperature significantly - the 1.5SMC82A-M3/57T must be laid out per Vishay's recommended footprint to achieve rated power.
Does the 1.5SMC82A-M3/57T have polarity markings, and how is it oriented in circuit?
Yes, the 1.5SMC82A-M3/57T is unidirectional and marked with a cathode band on the body. During normal operation, the cathode connects to the line or signal being protected, and the anode connects to ground or the return path. This orientation ensures reverse-bias operation - the 1.5SMC82A-M3/57T conducts only when transient voltage exceeds VBR, shunting surge current safely to ground without affecting steady-state functionality.
1.5SMC82A-M3/57T 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-M3/57T FAQ
1.How can I place an order for 1.5SMC82A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82A-M3/57T 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-M3/57T reliable?
The price and inventory of 1.5SMC82A-M3/57T 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-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC82A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82A-M3/57T?
1.5SMC82A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82A-M3/57T 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-M3/57T?
For technical support, including 1.5SMC82A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC82A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82A-M3/57T 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-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC82A-M3/57T?
All 1.5SMC82A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82A-M3/57T, 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-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC82A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82A-M3/57T Tags
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