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Vishay General Semiconductor - Diodes Division 1.5SMC150CAHE3/57T
- Part No.:
- 1.5SMC150CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150CAHE3/57T.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,925
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Product details
Overview
1.5SMC150CAHE3/57T 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 with ≤1 µA leakage at 25 °C - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC150CAHE3/57T datasheet, 1.5SMC150CAHE3/57T pinout, 1.5SMC150CAHE3/57T application, or 1.5SMC150CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, and thermal resistance of 75 °C/W for junction-to-ambient operation.
Technical Context
This device operates as a voltage-clamped shunt protector: during transient events exceeding 128 V, it avalanches symmetrically in both directions to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance.
Designed for high-reliability environments, the 1.5SMC150CAHE3/57T meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), supports 150 °C maximum junction temperature, and is qualified to AEC-Q101 - confirming suitability for automotive electronics where repetitive transients from load switching or ESD are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains high-energy lightning-induced surges without failure |
| Standoff Voltage (VWM) | 128 V - defines maximum continuous reverse operating voltage before conduction |
| Clamping Voltage (VC @ IPPM) | 207 V at 7.2 A - limits voltage seen by protected ICs during worst-case transient |
| Breakdown Voltage (VBR min/max) | 143 V / 158 V at 1 mA - ensures precise, repeatable avalanche initiation threshold |
| Leakage Current (ID @ VWM) | ≤1 µA at 25 °C - negligible standby power loss and no signal integrity impact |
| Junction Temperature Range | –65 °C to +150 °C - enables deployment in under-hood automotive and industrial ambient conditions |
| Thermal Resistance (RθJA) | 75 °C/W - determines required PCB copper area (0.31" × 0.31") for thermal management |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals serve identically as bidirectional surge conduction paths - no cathode band or polarity identification required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV) surges on 2 Ω/42 Ω source impedance networks |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard SMT reflow without baking preconditioning |
| UL 497B recognition (QVGQ2) | Approved for use in telecom and industrial signal-line protectors per safety standards |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤207 V, preventing latch-up or gate oxide damage in 5 V/12 V tolerant receivers while maintaining <1 µA leakage during normal operation. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring surges and ground-bounce events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on channel-level inputs, coordinated with series impedance and filtering. Use Value: Absorbs 1500 W pulses without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements. |
| Telecom Line Interface | Power Supply Rail Clamping |
|
Use Scenario: Secondary protection on POTS or Ethernet PHY lines exposed to induced lightning surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Fast-response TVS placed after gas discharge tube (GDT) primary protection to handle residual energy. Use Value: Sub-nanosecond response time clamps residual transients to safe levels before they reach sensitive PHY ICs, with minimal capacitance impact. |
Use Scenario: Clamping 12–48 V DC power rails in embedded systems against reverse-polarity connection errors and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional rail-to-rail clamp between VIN and GND, activated only during overvoltage fault conditions. Use Value: Maintains system uptime by limiting rail voltage excursions to 207 V, protecting downstream DC-DC converters and microcontrollers without affecting steady-state regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-E3/52 | Lower peak power (600 W), SMB package (smaller footprint, higher RθJA = 90 °C/W) | Suitable for space-constrained consumer electronics; insufficient for automotive-level surge testing | Select when board area is critical and surge energy is limited to ≤600 W (e.g., USB or low-power sensor nodes) |
| 1.5KE150CA | Through-hole DO-201 package, same 150 V VWM and 207 V VC, but lower mounting reliability and no AEC-Q101 qualification | Used in legacy industrial power supplies where automated SMT is not available | Choose only for through-hole prototyping or repair; not recommended for new automotive or high-volume SMT designs |
Compared with SMBJ150CA-E3/52 and 1.5KE150CA, the 1.5SMC150CAHE3/57T uniquely combines AEC-Q101 qualification, 1500 W surge handling, and SMC package manufacturability - making it the preferred choice for production automotive and industrial SMT assemblies requiring long-term reliability and regulatory compliance.
Availability
1.5SMC150CAHE3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, telecom line interface protection, and 24–48 V DC power rail clamping requiring stable component supply and full traceability.
Supply support for 1.5SMC150CAHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, robust surge handling, and seamless SMT integration in demanding environments.
FAQ
What is the clamping voltage of the 1.5SMC150CAHE3/57T under maximum rated surge current?
The 1.5SMC150CAHE3/57T clamps to 207 V when subjected to its specified peak pulse current of 7.2 A (10/1000 µs waveform). This value is measured per Figure 1 in the Vishay datasheet 88303 and represents the maximum voltage imposed on protected circuitry during a full-rated transient event - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC150CAHE3/57T suitable for automotive applications?
Yes, the 1.5SMC150CAHE3/57T is explicitly AEC-Q101 qualified (as indicated by the "HE3" suffix) and rated for –65 °C to +150 °C junction temperature. It is designed for automotive subsystems including body control modules, sensor interfaces, and infotainment power supplies where immunity to load dump, jump start, and ISO 7637-2 transients is required.
Does the 1.5SMC150CAHE3/57T have polarity markings on the package?
No, the 1.5SMC150CAHE3/57T is a bidirectional TVS diode in the SMC (DO-214AB) package and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation - a key advantage for automated placement and layout flexibility in differential or AC-coupled signal paths.
What is the standoff voltage (VWM) and how does it relate to system operating voltage?
The 1.5SMC150CAHE3/57T has a standoff voltage (VWM) of 128 V, meaning it remains non-conductive up to this DC or RMS voltage level. For reliable operation, system nominal voltage must be ≤80 % of VWM - e.g., it is appropriate for 100 V DC bus protection but not for 130 V continuous operation, where leakage or premature conduction could occur.
How does the thermal resistance of the 1.5SMC150CAHE3/57T affect PCB layout?
The 1.5SMC150CAHE3/57T 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. To maintain TJ ≤ 150 °C under sustained 6.5 W dissipation, designers must allocate sufficient copper area and avoid thermal isolation - undersized pads will cause derating and premature thermal failure.
1.5SMC150CAHE3/57T 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC150CAHE3/57T FAQ
1.How can I place an order for 1.5SMC150CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150CAHE3/57T 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 1.5SMC150CAHE3/57T reliable?
The price and inventory of 1.5SMC150CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC150CAHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC150CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150CAHE3/57T?
1.5SMC150CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150CAHE3/57T 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 1.5SMC150CAHE3/57T?
For technical support, including 1.5SMC150CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150CAHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC150CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150CAHE3/57T 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 1.5SMC150CAHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC150CAHE3/57T?
All 1.5SMC150CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150CAHE3/57T, 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 1.5SMC150CAHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC150CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150CAHE3/57T Tags
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