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Vishay General Semiconductor - Diodes Division 1.5SMC82CA-E3/57T
- Part No.:
- 1.5SMC82CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82CA-E3/57T.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:1,157
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Product details
Overview
1.5SMC82CA-E3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. 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 rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the 1.5SMC82CA-E3/57T datasheet, 1.5SMC82CA-E3/57T pinout, 1.5SMC82CA-E3/57T application, or 1.5SMC82CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.43), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while low incremental surge resistance minimizes voltage overshoot during transient events.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2; thermal resistance from junction-to-ambient is 75 °C/W on standard 0.31" × 0.31" copper pads. It meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70.1 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold |
| VBR min/max | 77.9 V / 86.1 V at 1 mA - Confirmed breakdown range ensures reliable turn-on within spec under production tolerance |
| VC @ IPPM | 113 V at 13.3 A - Clamping voltage limits downstream IC stress during 10/1000 μs surge; clamping ratio = 1.43× VBR |
| PPPM | 1500 W - Peak pulse power handling with 0.01% duty cycle; supports repetitive lightning-induced surges in telecom and automotive |
| IPPM | 13.3 A - Peak pulse current capacity derived from 1500 W / 113 V; validates protection level against IEC 61000-4-5 Level 4 |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with IPC-7351B |
Pinout & Package
SMC (DO-214AB) package: molded plastic body with two coplanar matte tin-plated leads; no polarity marking for bidirectional types; terminals solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative voltage excursions; symmetrical with cathode for bidirectional clamping |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive voltage excursions; functionally identical to anode in CA-series devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and ungrounded power rails without polarity concerns |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave (1.2/50 μs voltage, 8/20 μs current) up to Level 4 (4 kV/2 kA) when properly mounted |
| MSL Level 1 (260 °C peak) | Allows standard reflow profiles without baking; eliminates moisture-related popcorning risk in high-volume SMT assembly |
| UL 497B recognized (QVGQ2) | Validated for use in telecom and industrial surge protective devices requiring third-party safety certification |
| RoHS-compliant, halogen-free option available | E3 suffix denotes commercial-grade RoHS compliance; M3 suffix adds halogen-free molding compound for stricter environmental requirements |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or supply rail to limit transient overvoltage before it reaches sensitive analog front-end or transceiver IC. Use Value: Prevents latch-up or permanent damage in automotive-grade microcontrollers and signal conditioners exposed to ±100 V transients. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against ESD and inductive switching spikes from solenoids or relays. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input lines to shunt surge energy away from optocoupler input stages and protection diodes. Use Value: Extends mean time between failures (MTBF) by suppressing >1 kV transients that would otherwise degrade isolation barriers or cause false triggering. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side surge suppression on Ethernet PHY power rails (e.g., 3.3 V, 5 V) and MDI pairs in PoE-powered equipment. IC Role / Device Role / Timing Role: Fast-acting clamp limiting voltage excursion during lightning-induced surges coupled onto twisted-pair cabling. Use Value: Maintains IEEE 802.3af/at compliance by ensuring <100 ns response time and clamping below IC absolute maximum ratings. |
Use Scenario: Input-stage transient suppression on AC-DC adapter primary-side rectifier outputs and secondary-side 12 V/5 V rails. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing line-to-line and line-to-ground surges from mains-borne transients per IEC 61000-4-4/5. Use Value: Reduces need for additional MOVs or gas discharge tubes, simplifying BOM while meeting UL 62368-1 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower peak power (600 W), smaller SMB package (DO-214AA), 85 V VBR range, higher VC/VBR ratio (1.47) | Best suited for space-constrained consumer electronics where 1500 W rating is not required | Select when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1.5KE82CA | Through-hole TO-204AE (DO-15) package, same VBR and VC, but slower thermal response and no MSL rating | Used in legacy industrial power supplies and repair scenarios where SMT is not feasible | Choose only for through-hole prototyping or replacement in existing through-hole designs |
Compared with 1.5SMC82CA-E3/57T, SMBJ85CA trades peak power and thermal robustness for compact size, while 1.5KE82CA sacrifices SMT compatibility and moisture resilience for mechanical ruggedness and legacy availability - neither offers pin-to-pin equivalence, but both serve overlapping protection functions in different form factors.
Availability
1.5SMC82CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line interfaces, and consumer power adapter designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC82CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and high-power handling.
The 1.5SMC Series was developed specifically for high-energy transient suppression in automotive, industrial, and telecom systems where robustness, AEC-Q101 qualification, and standardized SMT packaging are critical design requirements.
FAQ
What is the clamping voltage of the 1.5SMC82CA-E3/57T under a 10/1000 μs surge?
The 1.5SMC82CA-E3/57T has a maximum clamping voltage (VC) of 113 V at 13.3 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and reflects worst-case conduction under standardized surge conditions - critical for verifying margin against downstream IC absolute maximum ratings in the 1.5SMC82CA-E3/57T application.
Is the 1.5SMC82CA-E3/57T RoHS-compliant and halogen-free?
The 1.5SMC82CA-E3/57T carries the "E3" suffix, indicating RoHS-compliance per EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance, but it is not halogen-free. For halogen-free compliance, the "M3" variant (e.g., 1.5SMC82CA-M3/57T) must be selected - both share identical electrical specs and SMC packaging, but differ in molding compound composition per Vishay's material categorization doc 99912.
Does the 1.5SMC82CA-E3/57T have AEC-Q101 qualification?
No, the 1.5SMC82CA-E3/57T is not AEC-Q101 qualified. AEC-Q101 versions use the "HE3" or "HM3" suffix (e.g., 1.5SMC82CAHE3_A/H). The "E3" suffix denotes commercial-grade qualification only. For automotive applications requiring AEC-Q101, engineers must specify the HE3 variant and verify revision code "A" per ordering table in document 88303 - the 1.5SMC82CA-E3/57T is intended for industrial and telecom use where AEC-Q101 is not mandated.
What is the thermal resistance of the 1.5SMC82CA-E3/57T in standard mounting conditions?
The 1.5SMC82CA-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Table "THERMAL CHARACTERISTICS" of document 88303. This value assumes no additional heatsinking and is used to calculate junction temperature rise under steady-state power dissipation (PD = 6.5 W).
How does the bidirectional configuration of the 1.5SMC82CA-E3/57T affect its PCB layout?
The 1.5SMC82CA-E3/57T has no polarity marking and functions identically in either orientation, simplifying PCB layout by eliminating orientation checks during automated placement. Unlike unidirectional TVS diodes, it requires no attention to cathode band alignment - this symmetry enables direct placement across differential pairs or floating power domains without circuit-level polarity assumptions in the 1.5SMC82CA-E3/57T design.
1.5SMC82CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC82CA-E3/57T FAQ
1.How can I place an order for 1.5SMC82CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82CA-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 1.5SMC82CA-E3/57T reliable?
The price and inventory of 1.5SMC82CA-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 1.5SMC82CA-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC82CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82CA-E3/57T?
1.5SMC82CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82CA-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 1.5SMC82CA-E3/57T?
For technical support, including 1.5SMC82CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82CA-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC82CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82CA-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 1.5SMC82CA-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC82CA-E3/57T?
All 1.5SMC82CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82CA-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 1.5SMC82CA-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC82CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82CA-E3/57T Tags
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