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Vishay General Semiconductor - Diodes Division 1.5SMC150CAHE3/9AT
- Part No.:
- 1.5SMC150CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150CAHE3/9AT.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,686
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Product details
Overview
1.5SMC150CAHE3/9AT 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 features a 150 V standoff voltage (VWM), 179 V minimum breakdown voltage (VBR), 207 V maximum clamping voltage (VC) at 7.2 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC150CAHE3/9AT datasheet, 1.5SMC150CAHE3/9AT pinout, 1.5SMC150CAHE3/9AT application, or 1.5SMC150CAHE3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification for automotive use, DO-214AB (SMC) package thermal performance, and compliance with UL 497B surge protector standards.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering identical clamping behavior above ±150 V standoff. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ps), enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
Rated for 150 °C maximum junction temperature and MSL Level 1 (260 °C reflow peak), it supports automated SMT assembly without derating. The device meets JESD201 Class 2 whisker resistance and is qualified to AEC-Q101 - confirming suitability for under-hood automotive electronics and harsh-environment industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 150 V - maximum continuous reverse voltage before conduction begins in either direction |
| VBR (Breakdown) | 179–198 V at 1 mA - guaranteed avalanche initiation range ensuring predictable turn-on threshold |
| VC (Clamping) | 207 V at 7.2 A (10/1000 μs) - peak voltage seen by protected circuit during worst-case transient |
| PPPM | 1500 W - surge energy handling capacity per IEEE C62.41-compliant 10/1000 μs waveform |
| ID (Leakage) | <1.0 μA at 150 V - negligible standby power loss and minimal signal distortion in high-impedance circuits |
| TJ max. | +150 °C - enables operation in engine bay, motor drives, and other high-temperature environments |
| AEC-Q101 | Qualified - validated reliability for automotive-grade applications including ADAS sensors 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 JESD22-B102. Meets UL 94 V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (Bidirectional) | Non-polarized terminals | No polarity marking; symmetrical conduction in both directions - simplifies PCB layout and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both polarities - protects AC-coupled and floating signal lines without external polarity management |
| 1500 W peak pulse power | Sustains 10/1000 μs surges up to 7.2 A - exceeds IEC 61000-4-5 Level 4 (4 kV) requirements for industrial ports |
| Glass-passivated junction | Stable leakage <1 μA and repeatable breakdown - ensures long-term reliability in humid or thermally cycled environments |
| AEC-Q101 qualification | Validated for automotive Grade 0 (−40 °C to +150 °C) - approved for use in engine control units and battery management systems |
| MSL Level 1 | Unlimited floor life and 260 °C reflow compatibility - supports high-volume automated assembly without baking or special handling |
Applications
| Automotive Sensor Protection | Industrial Ethernet Port Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ESD events in vehicle cabin modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair and shield to clamp common-mode transients before they reach PHY ICs. Use Value: Limits clamped voltage to 207 V while absorbing 1500 W surges - prevents latch-up and permanent damage to 3.3 V/5 V transceivers. |
Use Scenario: Safeguarding RJ45 Ethernet PHY interfaces in programmable logic controllers against induced lightning surges. IC Role / Device Role / Timing Role: Paired across each twisted pair (TX+/TX−, RX+/RX−) as primary-level surge suppression ahead of integrated magnetics. Use Value: Clamps 10/1000 μs transients to ≤207 V within nanoseconds - maintains signal integrity and avoids PHY reset or data corruption. |
| Telecom DSL Line Protection | Motor Drive Feedback Circuit Protection |
|
Use Scenario: Shielding ADSL/VDSL line drivers and receivers from tip-ring surges on copper telephone lines. IC Role / Device Role / Timing Role: Mounted between line interface transformer secondary and codec IC to suppress longitudinal mode transients. Use Value: Symmetric clamping ensures balanced protection on hybrid circuits - preserves common-mode rejection ratio (CMRR) of analog front-end. |
Use Scenario: Securing Hall-effect sensor outputs and encoder feedback lines in BLDC motor inverters exposed to PWM noise and back-EMF spikes. IC Role / Device Role / Timing Role: Installed at sensor connector entry point to shunt inductive kickback before reaching microcontroller GPIO or ADC inputs. Use Value: Sub-1 ns response and 207 V clamping prevent false triggering or ADC saturation - maintains precise rotor position tracking. |
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 | Same VWM (150 V) and bidirectional configuration, but SMB package (DO-214AA); lower PPPM (600 W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not rated for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is moderate (e.g., consumer USB ports) |
| 1.5KE150CA | Through-hole TO-204AE (DO-15); same electrical specs but larger footprint and manual assembly required | Suitable for prototyping or legacy through-hole designs; lacks AEC-Q101 qualification and MSL Level 1 rating | Choose for cost-sensitive non-automotive applications where reflow compatibility is not required |
Compared with SMBJ150CA and 1.5KE150CA, the 1.5SMC150CAHE3/9AT delivers higher surge robustness in a compact, AEC-Q101-qualified SMT package - making it the preferred choice for production automotive and industrial systems requiring validated reliability and automated manufacturing support.
Availability
1.5SMC150CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial Ethernet ports, and telecom DSL line protection requiring stable component supply, full traceability, and long-term lifecycle continuity.
Supply support for 1.5SMC150CAHE3/9AT 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 was engineered for high-power transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and UL 497B recognition are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC150CAHE3/9AT under a 10/1000 μs surge?
The 1.5SMC150CAHE3/9AT clamps to a maximum of 207 V when subjected to a 7.2 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the 1.5SMC150CAHE3/9AT suitable for automotive applications?
Yes, the 1.5SMC150CAHE3/9AT is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix. It operates from −65 °C to +150 °C, supports MSL Level 1 reflow, and meets JESD201 Class 2 whisker resistance - making it appropriate for engine control, ADAS sensors, and body electronics.
How does the bidirectional design of the 1.5SMC150CAHE3/9AT affect its PCB layout?
The 1.5SMC150CAHE3/9AT has no polarity marking and conducts identically in both directions, eliminating orientation constraints during placement. This simplifies layout for AC-coupled lines, differential pairs, and floating grounds - reducing assembly errors and enabling symmetric routing without cathode/anode alignment checks.
What is the maximum leakage current of the 1.5SMC150CAHE3/9AT at its standoff voltage?
At its 150 V standoff voltage (VWM), the 1.5SMC150CAHE3/9AT exhibits a maximum reverse leakage current of 1.0 μA at 25 °C. This ultra-low leakage ensures minimal power drain and signal loading in high-impedance sensor interfaces and precision analog circuits.
Does the 1.5SMC150CAHE3/9AT meet any safety certifications?
Yes, the 1.5SMC150CAHE3/9AT is Underwriters Laboratories (UL) recognized under file E136766 for both unidirectional and bidirectional configurations, complying with UL 497B for telecommunications protectors. It also meets RoHS and halogen-free requirements per Vishay's HE3 designation.
1.5SMC150CAHE3/9AT 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)
1.5SMC150CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC150CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150CAHE3/9AT 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 1.5SMC150CAHE3/9AT reliable?
The price and inventory of 1.5SMC150CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC150CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC150CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150CAHE3/9AT?
1.5SMC150CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150CAHE3/9AT 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 1.5SMC150CAHE3/9AT?
For technical support, including 1.5SMC150CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC150CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150CAHE3/9AT 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 1.5SMC150CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC150CAHE3/9AT?
All 1.5SMC150CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150CAHE3/9AT, 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 1.5SMC150CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC150CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150CAHE3/9AT Tags
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