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Vishay General Semiconductor - Diodes Division 1.5SMC180CAHE3/57T
- Part No.:
- 1.5SMC180CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180CAHE3/57T.pdf
- Description:
- TVS DIODE 154VWM 246VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,606
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Product details
Overview
1.5SMC180CAHE3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, rated for 1500 W peak pulse power with 10/1000 μs waveform, 154 V standoff voltage (VWM), and 246 V maximum clamping voltage (VC) at 6.1 A peak pulse current - deployed for lightning and inductive-switching surge protection on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the 1.5SMC180CAHE3/57T datasheet, 1.5SMC180CAHE3/57T pinout, 1.5SMC180CAHE3/57T application, or 1.5SMC180CAHE3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under standardized transients, and direct alternatives for automotive-grade circuit protection design.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) of 171–189 V at 1 mA test current and temperature coefficient of +0.108 %/°C. It features glass-passivated junction construction and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Designed for high-energy transient suppression, it delivers 1500 W peak pulse power capability at TA = 25 °C, derates linearly above 25 °C (RθJA = 75 °C/W), and supports repetitive surges at 0.01 % duty cycle - enabling robust protection without thermal runaway in automotive ECUs and industrial PLCs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 154 V - maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V/24 V automotive signal lines. |
| VBR min/max | 171 V / 189 V at 1 mA - ensures predictable turn-on threshold across production lot and temperature range. |
| VC @ IPPM | 246 V at 6.1 A - clamping voltage during 10/1000 μs surge; limits downstream IC stress to survivable levels. |
| PPPM | 1500 W - peak transient energy absorption capacity; validated per REA-defined 10/1000 μs waveform. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient on standard 8 mm × 8 mm copper pads; informs heatsinking requirements. |
| AEC-Q101 | Qualified - certified for automotive electronics per stress-test standard; required for ECU, ADAS, and body control modules. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Common terminal for symmetrical clamping; connects to protected line or ground reference depending on layout. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; forms dual-junction structure enabling equal clamping in both directions. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Withstands high-energy lightning-induced surges per ISO 7637-2 and IEC 61000-4-5 without degradation. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and mechanical shock - suitable for Tier-1 supply chain. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines. |
| Glass passivated junction | Provides stable leakage current (<1 μA at VWM) and long-term reliability under humidity and thermal stress. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground to shunt transient energy before reaching sensitive front-end amplifiers or microcontrollers. Use Value: Maintains signal integrity during 100 V/100 ms load dump events while holding clamped voltage below 246 V - preventing latch-up or permanent damage to 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to motor drive switching noise and field wiring surges. IC Role / Device Role / Timing Role: Fast-response TVS mounted directly at connector entry point to divert >1 kV EFT bursts and 0.5 kA lightning surges away from precision ADCs and isolation barriers. Use Value: Limits transient overvoltage to ≤246 V within <1 ns, preserving measurement accuracy and avoiding reset events in real-time control loops. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Control Protection |
Use Scenario: Shielding Ethernet PHYs and PoE injectors on telecom access equipment from induced surges on outdoor cabling per IEC 61000-4-5 Level 4. IC Role / Device Role / Timing Role: Primary-level TVS on RJ45 interface side, coordinated with secondary GDT or polymer PTC for staged energy handling. Use Value: Clamps 4 kV/2 kA surges to 246 V with sub-nanosecond response, reducing stress on integrated magnetics and PHY silicon by >60 % versus unclamped operation. |
Use Scenario: Suppressing commutation spikes from universal motors and BLDC drivers in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Across-the-line TVS connected between motor phase terminals and ground to absorb inductive kickback energy during MOSFET turn-off. Use Value: Absorbs 1500 W peak pulses without failure, extending MOSFET lifetime and eliminating need for snubber RC networks in cost-sensitive white goods designs. |
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 (154 V), SMB package (smaller footprint, higher RθJA = 110 °C/W) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use where space constraints outweigh power handling needs. | Select when board area is critical and surge threat level is ≤600 W (e.g., internal PCB traces, non-automotive sensors). |
| 1.5KE180CA | Through-hole DO-201 package, same 1500 W rating and 154 V VWM, but slower response due to higher parasitic inductance. | Not suitable for high-speed data lines or compact automotive modules; requires manual or wave soldering. | Choose only for legacy through-hole designs or cost-sensitive industrial controls where rework tolerance and thermal mass outweigh SMT advantages. |
Compared with SMBJ180CA and 1.5KE180CA, the 1.5SMC180CAHE3/57T uniquely combines AEC-Q101 qualification, 1500 W SMT capability, and DO-214AB thermal performance - making it the only drop-in solution for new automotive signal protection requiring zero layout change and full compliance traceability.
Availability
1.5SMC180CAHE3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC analog input protection, and telecom line card surge hardening requiring stable component supply, full AEC-Q101 documentation, and RoHS-compliant manufacturing traceability.
Supply support for 1.5SMC180CAHE3/57T 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series targets high-energy transient suppression in harsh environments, with design focus on AEC-Q101 qualification, low clamping voltage, and SMT manufacturability for next-generation vehicle electronics and smart infrastructure systems.
FAQ
What is the clamping voltage of the 1.5SMC180CAHE3/57T at its rated peak pulse current?
The 1.5SMC180CAHE3/57T exhibits a maximum clamping voltage (VC) of 246 V at its specified peak pulse current (IPPM) of 6.1 A under the 10/1000 μs waveform condition. This value is measured per standard test conditions defined in the Vishay datasheet (Document Number: 88303) and reflects worst-case device behavior across temperature and process variation - critical for validating downstream IC voltage tolerances in automotive and industrial designs.
Is the 1.5SMC180CAHE3/57T AEC-Q101 qualified, and what does that mean for automotive use?
Yes, the 1.5SMC180CAHE3/57T is AEC-Q101 qualified, as indicated by the "HE3" suffix per Vishay's ordering nomenclature. This certification confirms successful completion of stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - making the 1.5SMC180CAHE3/57T suitable for safety-critical automotive subsystems such as body control modules, ADAS sensor interfaces, and powertrain communication lines.
How does the bidirectional configuration of the 1.5SMC180CAHE3/57T affect its circuit placement?
The 1.5SMC180CAHE3/57T is bidirectional, meaning it provides symmetrical clamping in both forward and reverse directions without polarity dependence. In practice, this allows placement directly across differential signal pairs (e.g., CAN_H/CAN_L) or between a single-ended line and ground without orientation concerns. Its unmarked SMC package eliminates risk of incorrect mounting during automated assembly - a key advantage over unidirectional variants requiring cathode alignment.
What is the thermal resistance and maximum power dissipation of the 1.5SMC180CAHE3/57T under continuous operation?
The 1.5SMC180CAHE3/57T 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 JEDEC standards. Its steady-state power dissipation (PD) is rated at 6.5 W at TA = 50 °C. This means sustained power above 6.5 W requires active cooling or derating - but for transient suppression, the 1500 W peak rating applies only to short-duration pulses (≤50 ms), not continuous DC loading.
Can the 1.5SMC180CAHE3/57T replace older 1.5KE series TVS diodes in existing designs?
The 1.5SMC180CAHE3/57T is not a direct pin-compatible replacement for through-hole 1.5KE180CA due to its SMC (DO-214AB) surface-mount package versus DO-201. While electrical specs align closely (same VWM, VC, and PPPM), PCB redesign is required to accommodate the smaller footprint and solder pad layout. For drop-in upgrades, verify thermal performance and ensure the SMT variant meets mechanical vibration and under-hood airflow requirements of the target application.
1.5SMC180CAHE3/57T 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC180CAHE3/57T FAQ
1.How can I place an order for 1.5SMC180CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180CAHE3/57T 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 1.5SMC180CAHE3/57T reliable?
The price and inventory of 1.5SMC180CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC180CAHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC180CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180CAHE3/57T?
1.5SMC180CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180CAHE3/57T 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 1.5SMC180CAHE3/57T?
For technical support, including 1.5SMC180CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180CAHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC180CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180CAHE3/57T 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 1.5SMC180CAHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC180CAHE3/57T?
All 1.5SMC180CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180CAHE3/57T, 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 1.5SMC180CAHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC180CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180CAHE3/57T Tags
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