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Vishay General Semiconductor - Diodes Division 1.5SMC10CAHE3/9AT
- Part No.:
- 1.5SMC10CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10CAHE3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,382
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Product details
Overview
1.5SMC10CAHE3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 10 V standoff voltage (VWM), 11.1 V minimum breakdown voltage (VBR), 14.5 V maximum clamping voltage (VC) at 103 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the 1.5SMC10CAHE3/9AT datasheet, 1.5SMC10CAHE3/9AT pinout, 1.5SMC10CAHE3/9AT application, or 1.5SMC10CAHE3/9AT equivalent, key selection considerations include bidirectional clamping behavior, AEC-Q101 qualification, 1500 W surge rating, low 14.5 V clamping at rated current, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamped transient protector: during overvoltage events exceeding its 11.1–12.3 V breakdown range, it rapidly transitions to low-impedance conduction, limiting downstream voltage to ≤14.5 V at 103 A. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity constraints.
Thermally, it sustains 150 °C junction temperature with 75 °C/W junction-to-ambient thermal resistance (RθJA) under standard mounting (8.0 mm × 8.0 mm copper pads), and delivers 6.5 W steady-state power dissipation at 50 °C ambient. The glass-passivated junction ensures stable performance and meets J-STD-020 MSL Level 1 reflow requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 10 V - Maximum continuous reverse voltage before significant leakage; defines safe operating window for protected circuitry. |
| VBR (Breakdown) | 11.1–12.3 V at 1 mA - Voltage at which device enters avalanche conduction; ensures reliable triggering above normal signal swing. |
| VC (Clamping) | 14.5 V at 103 A - Peak voltage seen by protected load during 10/1000 μs surge; critical for IC-level ESD/lightning immunity. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports high-energy transients like ISO 7637-2 Pulse 1/2a/5a in automotive systems. |
| IPPM | 103 A - Maximum non-repetitive surge current; determines survivability against 10/1000 μs lightning-induced surges. |
| TJ max. | 150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB) - surface-mount, low-profile plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, and J-STD-002 solderability compliance. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | Connected to line being protected; no polarity marking required for bidirectional devices like 1.5SMC10CAHE3/9AT. |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | Connected to line being protected; symmetric with Anode - both terminals function identically for transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signal lines without polarity concerns - e.g., RS-485, CAN bus, sensor bridges. |
| 1500 W peak pulse power | Withstands high-energy transients such as ISO 16750-2 load dump spikes and IEC 61000-4-5 surge events up to 4 kV. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and body electronics requiring long-term field reliability. |
| Low clamping voltage (14.5 V) | Minimizes stress on downstream 12 V-rated ICs and MOSFETs during surge events - critical for protecting automotive microcontrollers. |
| MSL Level 1 reflow compatibility | Supports lead-free reflow up to 260 °C peak without preconditioning - simplifies manufacturing integration and eliminates moisture sensitivity handling. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine bay or chassis modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across sensor signal and ground to shunt transients before they reach ADC input or signal conditioning amplifier. Use Value: Prevents latch-up or permanent damage to 12 V rail-connected sensor ICs by limiting surge voltage to ≤14.5 V while maintaining signal integrity during normal operation. |
Use Scenario: Safeguarding 24 V DC industrial PLC digital input channels against wiring errors, relay coil flyback, and EFT bursts in factory automation systems. IC Role / Device Role / Timing Role: Standoff-connected TVS between input line and common reference, absorbing repetitive 10/1000 μs surges up to 1000 times per hour. Use Value: Extends mean time between failures (MTBF) of I/O modules by eliminating transient-induced firmware resets and input stage degradation. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY interface pins (e.g., MDI-X pairs) from induced surges due to nearby lightning strikes or power cross-talk in building cabling. IC Role / Device Role / Timing Role: Bidirectional TVS placed differentially across twisted-pair lines to suppress common-mode transients without distorting high-speed signaling. Use Value: Maintains IEEE 802.3 compliance by clamping surges within 1 ns response time while adding <1 pF parasitic capacitance to preserve signal integrity. |
Use Scenario: Secondary-side overvoltage suppression on 5–12 V DC outputs of wall-mounted USB-C PD adapters subjected to capacitor discharge events and hot-plug transients. IC Role / Device Role / Timing Role: Clamp connected between VOUT and GND to absorb energy from output capacitor discharge or feedback loop instability. Use Value: Prevents overvoltage damage to connected mobile devices by ensuring output never exceeds 14.5 V during fault conditions - meeting USB-IF safety thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower peak pulse power (600 W), same 10 V VWM, SMB package (smaller footprint, higher RθJA = 90 °C/W) | Less suitable for high-energy automotive transients; better for space-constrained consumer electronics with lower surge exposure | Select when board area is limited and surge threat level is moderate (e.g., IEC 61000-4-2 only, not IEC 61000-4-5) |
| 1.5KE10CA | Higher VC (17.5 V), through-hole DO-201 package, same 1500 W rating but slower response due to higher junction capacitance | Not suitable for high-speed signal lines; intended for bulk power rail protection where layout allows axial leads | Choose for legacy through-hole designs or cost-sensitive industrial power supplies where PCB real estate is not constrained |
Compared with SMBJ10CA and 1.5KE10CA, the 1.5SMC10CAHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W capability in a surface-mount SMC package, and low 14.5 V clamping - making it optimal for next-generation automotive and industrial SMT designs demanding high reliability and compact layout.
Availability
1.5SMC10CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC10CAHE3/9AT 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC10CAHE3/9AT under maximum surge conditions?
The 1.5SMC10CAHE3/9AT has a maximum clamping voltage (VC) of 14.5 V at 103 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions defined in the Vishay datasheet (Document Number: 88303), and reflects the actual voltage imposed on protected circuitry during worst-case transient events - critical for ensuring compatibility with 12 V logic and analog components.
Is the 1.5SMC10CAHE3/9AT qualified for automotive applications?
Yes, the 1.5SMC10CAHE3/9AT carries the HE3 suffix, indicating RoHS-compliant construction and full AEC-Q101 qualification. It has undergone rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC standards - making it approved for use in automotive powertrain, chassis, and body electronics where reliability under extreme thermal and electrical stress is required.
What does the "CA" suffix mean in 1.5SMC10CAHE3/9AT?
The "CA" suffix in 1.5SMC10CAHE3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., 1.5SMC10AHE3/9AT), this part has no cathode band marking and functions identically regardless of voltage polarity, enabling use in AC-coupled circuits, differential buses, and floating signal paths without orientation concerns.
What is the thermal resistance of the 1.5SMC10CAHE3/9AT, and how does it affect PCB layout?
The 1.5SMC10CAHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This value assumes standard JEDEC test conditions - underscoring the need for adequate copper pour around both terminals to maintain safe junction temperatures during repetitive surge events or elevated ambient conditions.
How does the 1.5SMC10CAHE3/9AT compare to older DO-15 or DO-201 packages in terms of surge handling?
The 1.5SMC10CAHE3/9AT delivers identical 1500 W peak pulse power as the through-hole 1.5KE10CA (DO-201), but achieves it in a smaller, surface-mount SMC (DO-214AB) package with superior thermal performance (RθJL = 15 °C/W vs. ~25 °C/W for DO-201) and faster response due to lower parasitic inductance - making it more effective for high-frequency transients in modern dense PCB layouts.
1.5SMC10CAHE3/9AT 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- 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)
1.5SMC10CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC10CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10CAHE3/9AT 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 1.5SMC10CAHE3/9AT reliable?
The price and inventory of 1.5SMC10CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC10CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10CAHE3/9AT?
1.5SMC10CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10CAHE3/9AT 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 1.5SMC10CAHE3/9AT?
For technical support, including 1.5SMC10CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC10CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10CAHE3/9AT 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 1.5SMC10CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC10CAHE3/9AT?
All 1.5SMC10CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10CAHE3/9AT, 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 1.5SMC10CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC10CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC10CAHE3/9AT Tags
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