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Vishay General Semiconductor - Diodes Division 1.5SMC150CAHE3_A/H
- Part No.:
- 1.5SMC150CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150CAHE3_A/H.pdf
- Description:
- TVS DIODE 128VWM 207VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,084
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Product details
Overview
1.5SMC150CAHE3_A/H 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/H datasheet, 1.5SMC150CAHE3_A/H pinout, 1.5SMC150CAHE3_A/H application, or 1.5SMC150CAHE3_A/H equivalent, this device serves as a high-reliability, AEC-Q101-qualified TVS for bidirectional surge suppression where low clamping voltage, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical design requirements.
Technical Context
The 1.5SMC150CAHE3_A/H operates as a bidirectional avalanche diode, leveraging glass-passivated junction technology to achieve symmetrical clamping in both polarities. Its breakdown voltage (VBR) is specified at 143–158 V (min/max) with 1.0 mA test current, and it maintains stable performance across -65 °C to +150 °C junction temperature range.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation on standard 8.0 mm × 8.0 mm copper pads. It meets J-STD-020 MSL Level 1 (260 °C peak reflow) and supports automated SMT placement without derating concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains high-energy transients like lightning-induced surges without failure |
| Standoff Voltage (VWM) | 128 V - maximum continuous reverse voltage before significant leakage; defines operating margin below clamping |
| Breakdown Voltage (VBR) | 143–158 V at 1.0 mA - precise avalanche initiation threshold ensuring predictable turn-on behavior |
| Clamping Voltage (VC) | 207 V at 7.2 A IPPM - limits transient voltage seen by downstream ICs to safe levels during surge events |
| Leakage Current (ID) | ≤1.0 µA at VWM - negligible standby power loss and no interference with high-impedance signal paths |
| Junction Temperature Range | -65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal 1 | One side of symmetrical avalanche junction; connects to protected line (e.g., CAN_H or RS-485 A) |
| Cathode | Terminal 2 | Other side of symmetrical junction; connects to same protected line (e.g., CAN_L or RS-485 B) - bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Enables protection against IEC 61000-4-5 Level 4 (4 kV surge) without external series impedance |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD or inductive switch-off) |
| Glass passivated chip junction | Ensures long-term stability and moisture resistance in harsh environments (e.g., engine control units) |
| MSL Level 1 reflow compatibility | Supports single-pass lead-free reflow up to 260 °C without popcorn or delamination risk |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive applications including ADAS sensors and body electronics |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to shunt surge energy to ground. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V interface ICs while maintaining <1 µA leakage during normal operation. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor drive noise and ground potential differences. IC Role / Device Role / Timing Role: Differential-line TVS connected between A/B bus lines and ground to suppress common-mode surges up to ±2 kV. Use Value: Clamps transients to ≤207 V within nanoseconds, preserving data integrity and avoiding communication lockup during EFT bursts. |
| Telecom Line Card Protection | Power Supply Input Stage |
|
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from lightning-induced surges entering via outdoor copper pairs. IC Role / Device Role / Timing Role: Primary-level protector mounted at connector entry point, upstream of gas discharge tube or MOV secondary stage. Use Value: Fast response (<1 ns) limits let-through voltage to <207 V, reducing stress on downstream GDT and improving system-level surge immunity. |
Use Scenario: Guarding 24 V DC input rails of industrial controllers against reverse-polarity connection and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional clamp across input terminals to absorb both positive and negative polarity transients. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), eliminating need for separate reverse-polarity protection diode. |
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), smaller SMB package (DO-214AA), higher RθJA (90 °C/W) | Suitable for space-constrained consumer designs; not rated for automotive AEC-Q101 | Select when board area is limited and surge energy is ≤600 W (e.g., USB port protection) |
| 1.5KE150CA | Through-hole TO-218 package, same 1500 W rating but slower thermal response and no MSL Level 1 compliance | Used in legacy industrial power supplies where reflow compatibility is irrelevant | Choose only for manual assembly or retrofit scenarios requiring identical electrical specs but no SMT support |
Compared with SMBJ150CA and 1.5KE150CA, the 1.5SMC150CAHE3_A/H uniquely combines AEC-Q101 qualification, SMC's optimized thermal performance (RθJL = 15 °C/W), and full MSL Level 1 reflow readiness - making it the preferred choice for new automotive and high-reliability industrial designs requiring automated manufacturing.
Availability
1.5SMC150CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and telecom line card protection requiring stable component supply, long-term lifecycle assurance, and traceable AEC-Q101-compliant sourcing.
Supply support for 1.5SMC150CAHE3_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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in automotive, industrial, and communications systems - prioritizing low clamping, fast response, and robust reflow survivability in compact SMC packaging.
FAQ
What does the "CA" suffix indicate in 1.5SMC150CAHE3_A/H?
The "CA" suffix in 1.5SMC150CAHE3_A/H denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities - essential for protecting AC-coupled or differential signal lines such as CAN, RS-485, or Ethernet without polarity constraints. This differs from unidirectional "A" variants that require correct anode/cathode orientation.
Is 1.5SMC150CAHE3_A/H compatible with lead-free reflow processes?
Yes, 1.5SMC150CAHE3_A/H is qualified to MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, making it fully compatible with standard lead-free soldering profiles. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements, ensuring reliable wetting and joint formation.
How does the clamping voltage of 1.5SMC150CAHE3_A/H compare to its breakdown voltage?
The 1.5SMC150CAHE3_A/H has a breakdown voltage (VBR) range of 143–158 V at 1.0 mA and a maximum clamping voltage (VC) of 207 V at 7.2 A IPPM. This 49–64 V difference represents the dynamic voltage rise under surge conditions - a key metric indicating how tightly the device limits overvoltage stress on protected circuitry during real-world transients.
Can 1.5SMC150CAHE3_A/H be used in place of a unidirectional TVS like 1.5SMC150AHE3_A/H?
No - 1.5SMC150CAHE3_A/H is bidirectional and lacks polarity marking, while 1.5SMC150AHE3_A/H is unidirectional with cathode band identification. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC or differential lines; unidirectional is required for DC supply rail protection where reverse conduction must be blocked.
What is the significance of the "HE3" and "_A/H" in 1.5SMC150CAHE3_A/H?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification for automotive use, while "_A/H" specifies the packaging: "A" denotes the revision level (per Vishay doc 88303), and "H" indicates 7-inch tape-and-reel delivery with 850 units per reel - critical for SMT line feed consistency and traceability in high-volume production.
1.5SMC150CAHE3_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):
- 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/H FAQ
1.How can I place an order for 1.5SMC150CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150CAHE3_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 1.5SMC150CAHE3_A/H reliable?
The price and inventory of 1.5SMC150CAHE3_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 1.5SMC150CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC150CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150CAHE3_A/H?
1.5SMC150CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150CAHE3_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 1.5SMC150CAHE3_A/H?
For technical support, including 1.5SMC150CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150CAHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC150CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150CAHE3_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 1.5SMC150CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC150CAHE3_A/H?
All 1.5SMC150CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150CAHE3_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 1.5SMC150CAHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC150CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150CAHE3_A/H Tags
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Diodes Incorporated
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