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Vishay General Semiconductor - Diodes Division 1.5SMC150CAHE3_A/I
- Part No.:
- 1.5SMC150CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150CAHE3_A/I.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,023
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Product details
Overview
1.5SMC150CAHE3_A/I 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 ≤1.0 μA leakage at 25 °C - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC150CAHE3_A/I datasheet, 1.5SMC150CAHE3_A/I pinout, 1.5SMC150CAHE3_A/I application, or 1.5SMC150CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, and thermal resistance (RθJA = 75 °C/W) for board-level surge resilience.
Technical Context
This device operates as a voltage-clamped shunt protector: during transient events exceeding 128 V, it avalanches to divert surge current away from downstream circuitry while maintaining low clamping voltage (207 V). Its glass-passivated junction ensures stable breakdown behavior and fast response (<1 ns).
Designed for bidirectional operation, the 1.5SMC150CAHE3_A/I has no polarity marking and symmetric VBR (143–158 V at 1 mA), enabling use on AC-coupled or floating lines without orientation constraints. It meets MSL Level 1 (260 °C reflow) and supports repetitive surges at 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - maximum continuous reverse operating voltage before conduction begins; defines safe working margin below clamping threshold. |
| VBR (min/max) | 143 V / 158 V at 1 mA - verified breakdown range ensuring consistent avalanche initiation across production lots. |
| VC @ IPPM | 207 V at 7.2 A - clamping voltage under 1500 W 10/1000 μs surge; determines maximum stress imposed on protected ICs. |
| IPPM | 7.2 A - peak pulse current capability; defines maximum transient energy the device can safely shunt without failure. |
| PPPM | 1500 W - peak pulse power rating per standard 10/1000 μs waveform; enables protection against lightning-induced surges (IEC 61000-4-5). |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on recommended 8.0 mm × 8.0 mm copper pads; guides PCB thermal layout for reliability. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no cathode/anode marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as input/output path; identical electrical behavior in both directions - no polarity-sensitive routing required. |
| Terminal 2 | Anode / Cathode (bidirectional) | Paired terminal completes the bidirectional clamp path; enables placement across differential or floating nodes without orientation check. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for engine control, ADAS sensors, and infotainment power rails. |
| 1500 W peak pulse power | Withstands high-energy transients per IEC 61000-4-5 Level 4 (4 kV line-to-ground); eliminates need for cascaded protection stages. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during clamping - critical for protecting 150 V-rated MOSFETs and isolated gate drivers. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without pre-baking; reduces manufacturing complexity and cost. |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 variants add halogen-free molding compound - meets EU ELV and JEDEC J-STD-020 requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role: Bidirectional shunt clamp placed between signal line and ground, absorbing transients before they reach the PHY layer. Use Value: Maintains signal integrity under ±128 V standoff and clamps to 207 V - within safe margin of 250 V-rated interface ICs. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role: Parallel-connected TVS across input terminals to clamp common-mode transients up to 1500 W. Use Value: Enables reliable operation at ambient temperatures up to +85 °C with RθJA = 75 °C/W - validated for DIN rail-mounted enclosures. |
| Telecom Line Interface | Power Supply Input Stage |
|
Use Scenario: Secondary protection on Ethernet PoE+ (IEEE 802.3at) data lines and auxiliary power feeds exposed to lightning-induced surges. IC Role / Device Role: Bidirectional clamp bridging differential pairs or line-to-ground, complementing primary GDT or MOV protection. Use Value: Low capacitance (<50 pF typical) avoids signal distortion at 100 MHz bandwidth; symmetric VBR preserves differential balance. |
Use Scenario: Input-stage surge suppression on 120/240 VAC rectified DC bus feeding SMPS controllers in industrial power supplies. IC Role / Device Role: Shunt protector placed after bridge rectifier and bulk capacitor to absorb line-initiated transients. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) - handles inrush-related overstress during cold-start conditions. |
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 | Lower peak power (600 W), same VWM/VC, 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 or industrial lightning scenarios | Select when space-constrained layouts prioritize size over surge margin, and transient energy is confirmed ≤600 W. |
| 1.5KE150CA | Through-hole TO-204AE (DO-41), identical electrical specs but larger thermal mass and manual assembly requirement | Not compatible with automated SMT lines; requires wave solder or hand-soldering - increases production cost and limits scalability | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ150CA and 1.5KE150CA, the 1.5SMC150CAHE3_A/I uniquely combines AEC-Q101 qualification, 1500 W surge handling, and SMC package manufacturability - making it the optimal choice for volume automotive and industrial SMT production requiring certified reliability.
Availability
1.5SMC150CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor systems, industrial PLC I/O modules, telecom line interfaces, and switched-mode power supply input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC150CAHE3_A/I 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 high-reliability and automotive-grade solutions.
The 1.5SMC Series targets high-energy transient suppression in harsh environments - engineered for AEC-Q101 compliance, robust surge immunity, and seamless integration into automated SMT manufacturing flows.
FAQ
What is the clamping voltage of the 1.5SMC150CAHE3_A/I under maximum rated surge current?
The 1.5SMC150CAHE3_A/I clamps to 207 V when subjected to its maximum peak pulse current of 7.2 A (10/1000 μs waveform). This value is measured and guaranteed per Vishay's datasheet (Document Number: 88303, Rev. 09-Mar-2026), and defines the upper voltage limit imposed on protected circuitry during transient events.
Is the 1.5SMC150CAHE3_A/I suitable for automotive applications?
Yes - the 1.5SMC150CAHE3_A/I carries AEC-Q101 qualification (indicated by the "HE3" suffix), with validation across temperature cycling, high-temperature reverse bias, and mechanical shock tests. It is explicitly rated for under-hood and chassis-mounted automotive subsystems, including sensor interfaces and body control modules.
What does the "CA" suffix mean in 1.5SMC150CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration: the 1.5SMC150CAHE3_A/I provides symmetrical transient suppression in both polarities, with matched breakdown (143–158 V) and clamping characteristics. Unlike unidirectional "A" variants, it has no polarity marking and may be installed without orientation checks.
What is the standoff voltage (VWM) of the 1.5SMC150CAHE3_A/I, and why does it matter?
The standoff voltage of the 1.5SMC150CAHE3_A/I is 128 V - the maximum continuous reverse voltage it can block without significant leakage (<1.0 μA). This parameter ensures the device remains non-conductive during normal operation while providing sufficient margin below its 143 V minimum breakdown voltage to avoid false triggering.
How does the SMC (DO-214AB) package of the 1.5SMC150CAHE3_A/I affect thermal performance?
The SMC package delivers RθJA = 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads - significantly better than smaller packages like SMB (110 °C/W). This enables sustained power dissipation in compact industrial and automotive PCBs without forced airflow or heatsinks, directly supporting reliability in thermally constrained designs.
1.5SMC150CAHE3_A/I 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:
- -
- 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_A/I FAQ
1.How can I place an order for 1.5SMC150CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150CAHE3_A/I 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_A/I reliable?
The price and inventory of 1.5SMC150CAHE3_A/I 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_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC150CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150CAHE3_A/I?
1.5SMC150CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150CAHE3_A/I 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_A/I?
For technical support, including 1.5SMC150CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150CAHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC150CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150CAHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC150CAHE3_A/I?
All 1.5SMC150CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150CAHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC150CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150CAHE3_A/I Tags
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Toshiba Semiconductor and Storage
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