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Vishay General Semiconductor - Diodes Division 1.5SMC150CA-M3/57T
- Part No.:
- 1.5SMC150CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150CA-M3/57T.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,359
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Product details
Overview
1.5SMC150CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It delivers 1500 W peak pulse power (10/1000 μs), clamps at 207 V under 7.2 A peak pulse current, and features a 128 V standoff voltage (VWM) with ≤1 μA leakage - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line cards.
For engineers reviewing the 1.5SMC150CA-M3/57T datasheet, 1.5SMC150CA-M3/57T pinout, 1.5SMC150CA-M3/57T application, or 1.5SMC150CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, SMC (DO-214AB) package thermal performance, AEC-Q101 qualification status, and compatibility with 10/1000 μs surge waveforms per IEC 61000-4-5.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism to divert surge energy away from protected circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity-dependent design constraints in AC-coupled or floating signal paths.
Thermally, it sustains 150 °C maximum junction temperature with 75 °C/W junction-to-ambient thermal resistance when mounted on 8.0 mm × 8.0 mm copper pads. The glass-passivated junction and halogen-free M3 construction meet JESD201 Class 2 whisker resistance and RoHS compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single high-energy surges typical of lightning-induced transients (IEC 61000-4-5 Level 4). |
| Standoff Voltage (VWM) | 128 V - defines maximum continuous operating voltage before conduction begins; sets system-level DC bias margin. |
| Clamping Voltage (VC @ IPPM) | 207 V - maximum voltage seen by protected ICs during 7.2 A transient; determines downstream component voltage rating. |
| Breakdown Voltage (VBR min/max) | 143 V / 158 V - tight 10.5% tolerance ensures predictable turn-on across production lots and temperature range. |
| Leakage Current (ID @ VWM) | ≤1 μA - negligible standby power loss and no signal integrity impact in high-impedance sensor or data lines. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline enabling automated placement and 1.5 kW thermal dissipation on standard PCB pads. |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in under-hood automotive, industrial control cabinets, and outdoor telecom enclosures. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability standards. Bidirectional construction means no cathode/anode marking - terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient return path (bidirectional) | Connects to protected line (e.g., CAN_H, RS-485 A); conducts surge current equally in either direction. |
| Terminal 2 | Transient return path (bidirectional) | Connects to reference plane (GND or common return); completes low-inductance surge shunt path with Terminal 1. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables protection against severe transients including indirect lightning strikes (IEC 61000-4-5) without derating at 25 °C ambient. |
| Bidirectional clamping | Eliminates need for polarity-aware layout; supports AC-coupled interfaces like Ethernet PHYs, RS-485, and audio lines. |
| Halogen-free, RoHS-compliant (M3) | Fulfills environmental compliance for global industrial and automotive programs while maintaining mechanical and thermal reliability. |
| MSL Level 1 (260 °C peak reflow) | Permits single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| AEC-Q101 qualified option available | HM3 suffix variants support automotive-grade reliability validation; this M3 variant shares identical electrical specs and package. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Network |
|---|---|
Use Scenario: Protecting LIN/CAN transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt >100 V surges before reaching ASIC inputs. Use Value: Maintains 128 V standoff while clamping to 207 V, ensuring downstream 3.3 V/5 V interface ICs remain within absolute maximum ratings during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding multi-drop RS-485 transceivers in factory automation PLCs exposed to ESD and inductive switching noise from solenoids and motors. IC Role / Device Role / Timing Role: Bidirectional transient suppressor across differential pair (A/B) and ground, absorbing ±15 kV ESD (IEC 61000-4-2) and 4 kV EFT (IEC 61000-4-4). Use Value: Symmetrical 207 V clamping prevents signal inversion or latch-up in half-duplex bus drivers, preserving data integrity at up to 10 Mbps. |
| Telecom Line Card Protection | Power Supply Input Stage |
Use Scenario: Shielding Ethernet PHYs and PoE controllers on telecom access equipment from induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary surge arrestor at RJ-45 jack, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: 1 μA leakage avoids loading 100 Ω termination impedance; 1500 W rating handles combination wave (10/700 μs) surges per ITU-T K.21. |
Use Scenario: Guarding AC-DC and DC-DC converter inputs against line surges in industrial power supplies and LED drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk input capacitor to clamp fast-rising transients before they stress rectifiers or controller ICs. Use Value: 128 V VWM aligns with 115 VAC/230 VAC full-wave rectified peaks (162 V/325 V), allowing safe operation without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Lower peak power (600 W), same VWM (128 V), SMB package (smaller footprint, higher RθJA = 110 °C/W). | Acceptable for lower-energy transients (IEC 61000-4-2/4-4), not recommended for IEC 61000-4-5 Level 4. | Select when board space is constrained and surge threat level is limited to ESD/EFT only. |
| 1.5KE150CA | Same electrical specs but axial-leaded DO-201 package; higher mounting inductance and manual assembly requirement. | Suitable for prototyping or legacy through-hole designs; incompatible with automated SMT lines. | Choose only for hand-soldered repairs or non-volume production where SMT is unavailable. |
Compared with SMBJ150CA and 1.5KE150CA, the 1.5SMC150CA-M3/57T uniquely balances 1500 W surge handling, SMT manufacturability, and bidirectional symmetry in the compact SMC outline - making it optimal for volume automotive and industrial designs requiring validated high-energy clamping.
Availability
1.5SMC150CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial communication interfaces, telecom line cards, and power supply input stages requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5SMC150CA-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 and application-specific performance.
The 1.5SMC Series targets high-power transient suppression in harsh environments, engineered for automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated without compromising signal fidelity or thermal stability.
FAQ
What is the clamping voltage of the 1.5SMC150CA-M3/57T under maximum rated surge current?
The 1.5SMC150CA-M3/57T clamps to a maximum of 207 V when subjected to its rated 7.2 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage that downstream circuitry will experience during a worst-case transient event. The 1.5SMC150CA-M3/57T maintains this clamping performance with minimal degradation over its specified lifetime.
Is the 1.5SMC150CA-M3/57T suitable for automotive applications?
The 1.5SMC150CA-M3/57T meets all electrical and mechanical specifications required for automotive use, including –65 °C to +150 °C junction temperature range and MSL Level 1 reflow compatibility. While the M3 suffix denotes halogen-free RoHS compliance, AEC-Q101 qualification is available under the HM3 suffix (e.g., 1.5SMC150CAHM3/57T). The 1.5SMC150CA-M3/57T shares identical electrical characteristics and package dimensions with its HM3 counterpart.
How does the bidirectional design of the 1.5SMC150CA-M3/57T affect circuit layout?
The bidirectional nature of the 1.5SMC150CA-M3/57T eliminates polarity orientation constraints during PCB placement - no cathode band marking is present, and both terminals function identically. This simplifies layout for AC-coupled or floating differential signals (e.g., RS-485, CAN, Ethernet), reduces risk of assembly error, and enables symmetrical routing to minimize parasitic inductance in the surge current path. The 1.5SMC150CA-M3/57T requires no directional alignment during automated pick-and-place.
What is the thermal resistance of the 1.5SMC150CA-M3/57T, and how does it impact PCB design?
The 1.5SMC150CA-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal - the minimum recommended pad layout per Vishay's datasheet. To maintain safe junction temperatures under repetitive surge conditions, designers must adhere to this pad size and ensure adequate copper area and thermal vias. Reducing pad size increases RθJA and risks exceeding the 150 °C maximum junction temperature. The 1.5SMC150CA-M3/57T thermal performance is validated only under these defined mounting conditions.
Does the 1.5SMC150CA-M3/57T have any special handling or storage requirements?
The 1.5SMC150CA-M3/57T is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be stored at ambient conditions (≤30 °C / 60% RH) without dry-pack or baking. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 for solderability, and the device passes JESD201 Class 2 whisker testing. No special humidity-controlled storage or pre-reflow baking is required for the 1.5SMC150CA-M3/57T, supporting streamlined SMT manufacturing flow.
1.5SMC150CA-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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- 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)
1.5SMC150CA-M3/57T FAQ
1.How can I place an order for 1.5SMC150CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150CA-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 1.5SMC150CA-M3/57T reliable?
The price and inventory of 1.5SMC150CA-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 1.5SMC150CA-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC150CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150CA-M3/57T?
1.5SMC150CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150CA-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 1.5SMC150CA-M3/57T?
For technical support, including 1.5SMC150CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150CA-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC150CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150CA-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 1.5SMC150CA-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC150CA-M3/57T?
All 1.5SMC150CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150CA-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 1.5SMC150CA-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC150CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150CA-M3/57T Tags
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