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Vishay General Semiconductor - Diodes Division 1.5SMC180A-M3/57T
- Part No.:
- 1.5SMC180A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180A-M3/57T.pdf
- Description:
- TVS DIODE 154VWM 246VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,686
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Product details
Overview
1.5SMC180A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 180 V standoff voltage (VWM), 246 V clamping voltage at 6.1 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive power modules, industrial motor drives, and telecom DC input stages.
For engineers reviewing the 1.5SMC180A-M3/57T datasheet, 1.5SMC180A-M3/57T pinout, 1.5SMC180A-M3/57T application, or 1.5SMC180A-M3/57T equivalent, this page delivers verified electrical parameters, SMC (DO-214AB) package details, clamping performance under surge conditions, and direct alternatives for ESD/lightning transient suppression in high-reliability DC systems.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 171–189 V breakdown range (VBR at 1 mA). Its low incremental surge resistance ensures stable clamping during repetitive transients, while the glass-passivated junction enables fast response time (<1 ns) and reliable operation up to 150 °C junction temperature.
The device is rated for 200 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports automated SMT placement, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. Its halogen-free, RoHS-compliant construction (M3 suffix) and matte tin-plated leads comply with JESD 22-B102 solderability and JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 154 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC operating margin. |
| VBR (Breakdown Voltage) | 171–189 V at 1 mA - Verified avalanche initiation range; ensures predictable turn-on under overvoltage stress. |
| VC (Clamping Voltage) | 246 V at IPPM = 6.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 1500 W - Sustained energy absorption capacity under standardized lightning/surge waveform; enables IEC 61000-4-5 compliance. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads; informs derating above 25 °C ambient. |
| TJ max | 150 °C - Maximum allowable junction temperature; sets upper limit for thermal design in enclosed enclosures. |
| ID (Leakage at VWM) | 1.0 μA - Reverse leakage current at 154 V; negligible power loss and minimal impact on high-impedance bias networks. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR. |
| Anode (unmarked end) | Reference / return path | Typically tied to system ground or low-impedance return; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against severe lightning-induced surges per IEC 61000-4-5 Level 4 without external series impedance. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision for sensitive 150 V-rated components. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial OEMs without compromising surge robustness. |
| MSL Level 1, 260 °C reflow compatible | Supports single-pass lead-free reflow assembly without preconditioning or special handling. |
| AEC-Q101 qualified option available | HE3/HM3 variants meet automotive qualification; this M3 variant is commercial-grade but shares identical die and package reliability. |
Applications
| Automotive Power Input Protection | Industrial DC Motor Drive Bus |
|---|---|
Use Scenario: 24 V and 48 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp spikes before they reach primary regulation stage. Use Value: Clamps to 246 V within nanoseconds, preventing damage to 36 V-rated MOSFETs and controller ICs during 120 V/100 ms load dump events. |
Use Scenario: 150 V DC bus in variable-frequency drives subject to regenerative braking spikes and inductive kickback. IC Role / Device Role / Timing Role: Parallel-mounted TVS across bus terminals to absorb stored inductive energy during IGBT turn-off. Use Value: Absorbs up to 1500 W of transient energy without degradation, maintaining bus voltage below 250 V to protect 200 V-rated electrolytic capacitors and gate drivers. |
| Telecom DC Power Entry | Renewable Energy Charge Controller |
Use Scenario: -48 V DC power feed in base station equipment subjected to lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line unidirectional clamp on input rectifier output, upstream of bulk capacitance and isolation converters. Use Value: Limits surge voltage to ≤246 V, ensuring downstream 63 V-rated TVS arrays and 50 V-rated controllers remain within safe operating area. |
Use Scenario: PV array input stage of solar charge controllers where open-circuit voltage can reach 180 V under cold conditions and lightning strikes induce fast transients. IC Role / Device Role / Timing Role: Standoff-rated TVS directly across PV+ and PV− inputs to prevent overvoltage failure of MPPT controller FETs and sensing circuits. Use Value: 154 V VWM provides 4 % margin above 175 V max OC voltage, while 246 V VC protects 200 V-rated input capacitors during 10/1000 μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Same VWM (154 V), lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 110 °C/W) | Lower power handling limits use to sub-600 W surge environments; unsuitable for IEC 61000-4-5 Level 4. | Select when board space is constrained and surge energy is limited to <600 W (e.g., low-power sensor nodes). |
| 1.5KE180A | Same VWM/VBR/VC specs, axial-leaded DO-201 package, higher RθJA (100 °C/W), no MSL rating | Not suitable for automated SMT; requires through-hole assembly and manual rework; lacks reflow compatibility. | Choose only for prototyping or legacy through-hole designs where SMT is unavailable. |
Compared with SMBJ180A and 1.5KE180A, the 1.5SMC180A-M3/57T delivers 2.5× higher surge power handling in an MSL Level 1 SMT package - making it the preferred choice for production-grade automotive, industrial, and telecom systems requiring validated 1500 W transient immunity and automated assembly.
Availability
1.5SMC180A-M3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom power supplies, and renewable energy charge controllers requiring stable component supply, halogen-free compliance, and repeatable surge performance.
Supply support for 1.5SMC180A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where compact SMT form factor, 1500 W surge capability, and AEC-Q101 qualification readiness are essential.
FAQ
What is the clamping voltage of the 1.5SMC180A-M3/57T under maximum surge conditions?
The 1.5SMC180A-M3/57T has a maximum clamping voltage (VC) of 246 V at 6.1 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number 88303, Rev. 09-Mar-2026) and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The 1.5SMC180A-M3/57T maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC180A-M3/57T suitable for automotive applications?
The 1.5SMC180A-M3/57T is halogen-free and RoHS-compliant (M3 suffix), but it is not AEC-Q101 qualified. For automotive use, Vishay offers the HM3 variant (e.g., 1.5SMC180AHM3_A/H) which carries AEC-Q101 qualification. The 1.5SMC180A-M3/57T may be used in non-safety-critical automotive subsystems where qualification is not mandated, but designers must validate reliability per application requirements. The 1.5SMC180A-M3/57T shares identical electrical specs and package with qualified variants.
What is the thermal resistance of the 1.5SMC180A-M3/57T, and how does it affect layout?
The 1.5SMC180A-M3/57T 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. This value assumes minimum recommended pad layout per Vishay's package drawing. To maintain safe junction temperatures under sustained power dissipation, PCB layout must allocate adequate copper area and avoid thermal bottlenecks. The 1.5SMC180A-M3/57T derates linearly above 25 °C ambient per Figure 2 in the datasheet.
Does the 1.5SMC180A-M3/57T have bidirectional capability?
No, the 1.5SMC180A-M3/57T is a unidirectional TVS diode, indicated by the "A" suffix. It conducts only in reverse bias (cathode-to-anode) above its breakdown voltage. Bidirectional versions use the "CA" suffix (e.g., 1.5SMC180CA). The 1.5SMC180A-M3/57T must be oriented with the cathode band toward the protected line and anode toward ground to function correctly; reverse orientation will block normal operation and fail to clamp.
What is the maximum reverse leakage current of the 1.5SMC180A-M3/57T at its standoff voltage?
The 1.5SMC180A-M3/57T exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated standoff voltage (VWM) of 154 V, measured at 25 °C. This ultra-low leakage ensures minimal power loss and negligible loading on high-impedance voltage rails or precision sensing circuits. Leakage remains below 5 μA up to 125 °C, as confirmed in Vishay's electrical characteristics table (Document 88303, Page 2).
1.5SMC180A-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):
- 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)
1.5SMC180A-M3/57T FAQ
1.How can I place an order for 1.5SMC180A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180A-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 1.5SMC180A-M3/57T reliable?
The price and inventory of 1.5SMC180A-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 1.5SMC180A-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC180A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180A-M3/57T?
1.5SMC180A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180A-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 1.5SMC180A-M3/57T?
For technical support, including 1.5SMC180A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC180A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180A-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 1.5SMC180A-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC180A-M3/57T?
All 1.5SMC180A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180A-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 1.5SMC180A-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC180A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180A-M3/57T Tags
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