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Vishay General Semiconductor - Diodes Division 1.5SMC180CAHE3_A/H
- Part No.:
- 1.5SMC180CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180CAHE3_A/H.pdf
- Description:
- TVS DIODE 154VWM 246VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,774
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Product details
Overview
1.5SMC180CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 180 V standoff voltage (VWM), 246 V clamping voltage (VC) at 6.1 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC180CAHE3_A/H datasheet, 1.5SMC180CAHE3_A/H pinout, 1.5SMC180CAHE3_A/H application, or 1.5SMC180CAHE3_A/H equivalent, key selection criteria include bidirectional clamping performance, AEC-Q101 qualification, SMC (DO-214AB) package thermal robustness, and compliance with UL 497B for telecom surge protection.
Technical Context
This device operates as a voltage-clamped shunt protector: during transients exceeding its reverse standoff voltage (VWM = 180 V), it avalanches to limit voltage across protected circuitry. Its bidirectional symmetry enables use on AC-coupled or floating lines without polarity concerns.
Designed for repetitive surge handling under 0.01% duty cycle, it delivers stable clamping up to TJ = 150 °C with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W. The glass-passivated junction ensures low leakage (<1.0 μA at VWM) and fast response time (<1.0 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 180 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown) | 171–189 V at 1 mA - guaranteed avalanche onset range for reliable turn-on margin |
| VC (Clamping) | 246 V at IPPM = 6.1 A - peak voltage seen by protected IC/MOSFET during 10/1000 μs surge |
| PPPM | 1500 W - energy-handling capacity per IEEE C62.35-compliant 10/1000 μs transient |
| ID (Leakage) | <1.0 μA at 180 V - negligible standby power loss and signal integrity impact |
| TJ max. | +150 °C - supports operation in under-hood automotive and industrial ambient environments |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements (HTOL, TC, HTRB) |
Pinout & Package
Package: SMC (DO-214AB) - surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0, MSL Level 1 (260 °C reflow), and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Not applicable - bidirectional device has no polarity marking | No cathode/anode distinction; terminals are functionally symmetric for AC or floating-line protection |
| Anode (unmarked end) | Not applicable - bidirectional device has no polarity marking | Both terminals behave identically under positive or negative transients; no PCB orientation requirement |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Handles high-energy lightning-induced surges (IEC 61000-4-5 Level 4) without degradation |
| Bidirectional clamping | Protects AC-coupled data lines (e.g., RS-485, CAN FD) and transformer-isolated interfaces |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics with zero infant mortality failures |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD, inductive kick) |
| UL 497B recognition (QVGQ2) | Meets safety agency requirements for telecom and industrial signal line protectors |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting 5 V or 12 V supply rails and signal lines of wheel speed, pressure, or temperature sensors exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt TVS placed directly at connector entry point to clamp transients before reaching ASIC or microcontroller input pins. Use Value: Prevents latch-up or gate oxide damage in sensor front-end amplifiers and ADC drivers during 12 V system load dump events. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential input terminals to suppress common-mode transients without disrupting DC bias. Use Value: Maintains measurement accuracy and prevents input stage saturation during 1 kV/500 A surge tests per IEC 61000-4-5. |
| Telecom Line Protection | Power Supply DC Bus |
Use Scenario: Secondary protection on POTS, DSL, or Ethernet PHY lines where primary gas discharge tube (GDT) handles bulk energy and TVS provides fast follow-on clamping. IC Role / Device Role / Timing Role: Fast-response secondary protector downstream of GDT, limiting residual voltage to safe levels for PHY transceivers. Use Value: Reduces residual clamping voltage to <250 V, enabling use of lower-voltage-rated Ethernet magnetics and PHY ICs. |
Use Scenario: Overvoltage suppression on 24 V or 48 V DC distribution buses feeding motor drives, lighting controllers, or PoE injectors. IC Role / Device Role / Timing Role: Parallel-connected TVS across bus rails to absorb inductive switching spikes from relay coils or solenoid loads. Use Value: Limits bus voltage excursions to ≤246 V, preventing overvoltage shutdown or MOSFET avalanche failure in downstream SMPS controllers. |
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 | Same VWM (180 V) and VC (246 V), but lower PPPM (600 W); SMB package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for automotive load dump | Select when board space is constrained and surge threat level is moderate (e.g., consumer USB ports) |
| 1.5KE180CA | Same electrical specs, but axial-leaded DO-201 package; higher mechanical robustness but not SMT-compatible | Requires through-hole assembly; incompatible with automated pick-and-place; used in legacy industrial controls | Choose only for manual-rework scenarios or where leaded mounting is mandated by safety standards |
Compared with SMBJ180CA and 1.5KE180CA, the 1.5SMC180CAHE3_A/H uniquely combines AEC-Q101 qualification, SMC's optimized thermal path (RθJL = 15 °C/W), and full 1500 W rating - making it the only option qualified for automotive-grade SMT surge protection without derating.
Availability
1.5SMC180CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor systems, industrial PLC analog inputs, and telecom line protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for 1.5SMC180CAHE3_A/H 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, power handling, and automotive qualification.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where compact size, repeatable clamping, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC180CAHE3_A/H under maximum surge conditions?
The 1.5SMC180CAHE3_A/H clamps to a maximum of 246 V when subjected to its rated peak pulse current of 6.1 A (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees protection for downstream components rated for ≤250 V absolute maximum, such as automotive-grade microcontrollers and analog front-ends.
Is the 1.5SMC180CAHE3_A/H suitable for automotive applications?
Yes, the 1.5SMC180CAHE3_A/H is AEC-Q101 qualified and specifically designated for automotive use via the "HE3" suffix. It has passed high-temperature operating life (HTOL), temperature cycling (TC), and highly accelerated stress testing (HAST) required for engine control units, body electronics, and ADAS sensor modules.
Does the 1.5SMC180CAHE3_A/H have polarity markings on the package?
No - the 1.5SMC180CAHE3_A/H is a bidirectional TVS diode and carries no polarity marking. Its SMC (DO-214AB) package has identical electrical behavior in both directions, eliminating orientation constraints during PCB layout and automated placement.
What is the maximum operating temperature for the 1.5SMC180CAHE3_A/H?
The 1.5SMC180CAHE3_A/H has a maximum junction temperature (TJ max.) of +150 °C and is rated for continuous operation across –65 °C to +150 °C. Its thermal resistance (RθJA = 75 °C/W) allows sustained power dissipation up to 6.5 W on standard 8 mm × 8 mm copper pads.
How does the 1.5SMC180CAHE3_A/H compare to unidirectional variants like 1.5SMC180AHE3_A/H?
The 1.5SMC180CAHE3_A/H provides symmetrical clamping for AC or floating circuits, whereas the unidirectional 1.5SMC180AHE3_A/H clamps only in reverse bias and conducts forward current freely. Use the "CA" version for RS-485, CAN, or transformer-coupled lines; use "A" only for DC rail protection with defined polarity.
1.5SMC180CAHE3_A/H 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:
- -
- 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_A/H FAQ
1.How can I place an order for 1.5SMC180CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180CAHE3_A/H 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_A/H reliable?
The price and inventory of 1.5SMC180CAHE3_A/H 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_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC180CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180CAHE3_A/H?
1.5SMC180CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180CAHE3_A/H 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_A/H?
For technical support, including 1.5SMC180CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180CAHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC180CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180CAHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC180CAHE3_A/H?
All 1.5SMC180CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180CAHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC180CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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