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Vishay General Semiconductor - Diodes Division 1.5SMC180CA-M3/57T
- Part No.:
- 1.5SMC180CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180CA-M3/57T.pdf
- Description:
- TVS DIODE 154VWM 246VC SMC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
1.5SMC180CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features a 1500 W peak pulse power rating (10/1000 µs), 154 V standoff voltage (VWM), 171–189 V breakdown voltage (VBR at 1 mA), and clamps transients to ≤246 V at 6.1 A peak pulse current - deployed on power rails and signal lines of automotive sensor units and industrial motor controllers.
For engineers reviewing the 1.5SMC180CA-M3/57T datasheet, 1.5SMC180CA-M3/57T pinout, 1.5SMC180CA-M3/57T application, or 1.5SMC180CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3 variant.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism across both polarities. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping under repetitive 0.01% duty-cycle surges.
The 1.5SMC180CA-M3/57T is thermally optimized for surface-mount PCB layouts with 8.0 mm × 8.0 mm copper pads per terminal, achieving RθJA = 75 °C/W and RθJL = 15 °C/W. It supports operation from –65 °C to +150 °C junction temperature and meets UL 497B recognition (QVGQ2) for telecom and industrial protector classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 154 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 171–189 V at 1 mA - precise avalanche onset range ensuring predictable turn-on during overvoltage events |
| VC (Clamping) | ≤246 V at IPPM = 6.1 A - limits downstream voltage stress during 10/1000 µs surge, protecting 200 V-rated MOSFETs |
| PPPM | 1500 W - peak pulse power handling capacity under standard 10/1000 µs waveform, critical for lightning and inductive-switching immunity |
| IPPM | 6.1 A - maximum non-repetitive surge current supported at rated clamping voltage |
| TJ max. | +150 °C - enables reliable operation in under-hood automotive environments and enclosed industrial enclosures |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path (bidirectional) | Either terminal serves as input/output; identical avalanche behavior in both directions - eliminates orientation constraints during placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV line-to-line) surges when properly mounted on 8 mm × 8 mm copper pads |
| Halogen-free & RoHS-compliant (M3) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances |
| MSL Level 1 (260 °C reflow) | Supports standard lead-free reflow profiles without baking or special handling prior to assembly |
| AEC-Q101 qualification path | HM3 variant available - validated for automotive-grade reliability including HTOL, TCT, and ESD testing per AEC specification |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed at connector interface to shunt surge energy before it reaches signal conditioning ICs. Use Value: Maintains signal integrity by limiting transient overshoot to ≤246 V while surviving >1000 surges at 6.1 A, extending system MTBF in harsh vehicle environments. |
Use Scenario: Safeguarding gate driver inputs and feedback sensing nodes in variable-frequency drives subjected to inductive kickback from contactor switching. IC Role / Device Role / Timing Role: Fast-response (<1 ps) voltage clamp on isolated DC-link monitoring paths and optocoupler input rails. Use Value: Prevents false triggering or latch-up in isolated gate drivers by clamping transients within 100 ns, preserving PWM timing accuracy and drive reliability. |
| Telecom Line Interface | Consumer Power Adapter Outputs |
Use Scenario: Secondary-side surge suppression on Ethernet PHY interfaces and DSL line cards exposed to induced lightning surges per ITU-T K.20/K.44. IC Role / Device Role / Timing Role: Bidirectional transient suppressor bridging differential pairs or common-mode lines upstream of PHY ICs. Use Value: Provides UL 497B recognized protection with <100 pF junction capacitance at zero bias - avoids signal integrity degradation on 100 Mbps+ links. |
Use Scenario: Output rail protection in USB-C PD adapters and wireless charging base stations against output short-circuit transients and hot-plug spikes. IC Role / Device Role / Timing Role: Final-stage clamping device between secondary-side rectifier and output capacitor bank. Use Value: Limits output overvoltage to safe levels (<246 V) during fault conditions, preventing damage to connected devices and meeting IEC 62368-1 transient 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 |
|---|---|---|---|
| SMBJ180CA | Lower PPPM (600 W), same VWM/VBR range, SMB package (smaller footprint, higher RθJA) | Suitable for space-constrained consumer electronics where 600 W surge margin suffices | Select when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1.5KE180CA | Through-hole DO-201 package, identical electrical specs but incompatible mounting and thermal profile | Used in legacy industrial power supplies requiring manual assembly or wave soldering | Choose only for retrofit or repair of existing through-hole designs; not recommended for new SMT layouts |
Compared with SMBJ180CA and 1.5KE180CA, the 1.5SMC180CA-M3/57T delivers 2.5× higher surge power in an SMT-optimized package with superior thermal dissipation (RθJL = 15 °C/W), making it the preferred choice for high-reliability automotive and industrial SMT assemblies requiring AEC-Q101 alignment.
Availability
1.5SMC180CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial motor drives, telecom line interfaces, and consumer power adapter designs requiring stable component supply, halogen-free compliance, and repeatable surge performance.
Supply support for 1.5SMC180CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for robust, high-power transient suppression in demanding environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated without compromising board space or thermal design.
FAQ
What is the clamping voltage of the 1.5SMC180CA-M3/57T at its rated peak pulse current?
The 1.5SMC180CA-M3/57T clamps to a maximum of 246 V at its rated peak pulse current of 6.1 A (10/1000 µs waveform). This value is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads per terminal and represents the upper limit of voltage seen by protected circuitry during worst-case surge events. The 1.5SMC180CA-M3/57T maintains this clamping performance consistently across its qualified operating temperature range.
Is the 1.5SMC180CA-M3/57T suitable for automotive applications?
The 1.5SMC180CA-M3/57T is halogen-free and RoHS-compliant, and belongs to the AEC-Q101-qualified 1.5SMC family - with HM3 variants explicitly certified. While the M3 suffix itself denotes commercial-grade halogen-free construction, the underlying die and process are qualified for automotive use. For full AEC-Q101 compliance, specify HM3 suffix (e.g., 1.5SMC180CAHM3_A/H); the 1.5SMC180CA-M3/57T shares identical electrical and thermal characteristics.
What is the standoff voltage (VWM) of the 1.5SMC180CA-M3/57T, and how does it relate to system operating voltage?
The 1.5SMC180CA-M3/57T has a standoff voltage VWM of 154 V - the maximum continuous DC or RMS voltage that can be applied without significant leakage current (<1 μA). This allows safe integration into 125–150 V DC systems (e.g., 48 V telecom backup, 100 V industrial bus) with sufficient margin above nominal voltage to avoid false triggering while retaining headroom for transients. The 1.5SMC180CA-M3/57T's VWM is precisely defined and tested per JEDEC standards.
Does the 1.5SMC180CA-M3/57T have polarity markings, and how is it mounted on PCB?
No - the 1.5SMC180CA-M3/57T is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical SMC (DO-214AB) package allows orientation-agnostic placement on PCBs. Mounting requires adherence to Vishay's recommended 8.0 mm × 8.0 mm copper pad layout per terminal to achieve specified thermal resistance (RθJA = 75 °C/W) and peak pulse power rating. The 1.5SMC180CA-M3/57T is compatible with standard lead-free reflow profiles (peak 260 °C, MSL Level 1).
How does the 1.5SMC180CA-M3/57T compare to unidirectional TVS diodes like 1.5SMC180A-M3/57T?
The 1.5SMC180CA-M3/57T provides identical VWM, VBR, and clamping performance as its unidirectional counterpart (1.5SMC180A-M3/57T) but operates symmetrically in both directions - essential for protecting AC signals, differential buses, or floating nodes. Unlike the unidirectional version, it has no cathode band and cannot be used for DC polarity-sensitive clamping. The 1.5SMC180CA-M3/57T eliminates routing constraints in bidirectional applications while maintaining the same 1500 W surge rating and thermal performance.
1.5SMC180CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
1.5SMC180CA-M3/57T FAQ
1.How can I place an order for 1.5SMC180CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180CA-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 1.5SMC180CA-M3/57T reliable?
The price and inventory of 1.5SMC180CA-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 1.5SMC180CA-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC180CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180CA-M3/57T?
1.5SMC180CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180CA-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 1.5SMC180CA-M3/57T?
For technical support, including 1.5SMC180CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180CA-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC180CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180CA-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 1.5SMC180CA-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC180CA-M3/57T?
All 1.5SMC180CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180CA-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 1.5SMC180CA-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC180CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180CA-M3/57T Tags
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