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Vishay General Semiconductor - Diodes Division SM15T10CAHE3/9AT
- Part No.:
- SM15T10CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10CAHE3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,751
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Product details
Overview
SM15T10CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 10 V stand-off voltage (VWM), and 14.5 V maximum clamping voltage (VC) at 103 A peak pulse current. It provides robust protection for automotive sensor signal lines against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T10CAHE3/9AT datasheet, SM15T10CAHE3/9AT pinout, SM15T10CAHE3/9AT application, or SM15T10CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.45), RoHS-compliant matte tin terminals, and compatibility with automated SMT placement on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) of 11.4 V min / 12.6 V max at 1.0 mA test current and reverse leakage ≤5.0 μA at 10 V. Its low dynamic impedance enables fast response to transients up to 10/1000 μs waveform while maintaining clamping within 14.5 V at 103 A.
Thermal design relies on RθJL = 15 °C/W junction-to-lead resistance and derating above 25 °C ambient per Fig. 2; failure mode under overstress is short-circuit, consistent with IEC 61000-4-5 Level 4 compliance requirements for automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line DC bias. |
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA - Ensures reliable turn-on before damage threshold; tight 10.5% tolerance supports precise system-level margining. |
| VC @ IPPM | 14.5 V at 103 A (10/1000 μs) - Clamps transient energy to safe level for downstream 12 V logic or analog ICs without overvoltage stress. |
| PPPM | 1500 W - Withstands high-energy surges from lightning or motor switching; validated on 8.0 mm × 8.0 mm copper pads per JEDEC standards. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments; supports AEC-Q101 qualification for automotive grade reliability. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint; compatible with IPC-7351B land patterns. |
Pinout & Package
SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads; no polarity marking for bidirectional configuration; terminals solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive half-cycle) | Conducts surge current during positive voltage excursions; symmetrical with cathode for bidirectional clamping. |
| Cathode | Transient current entry point (negative half-cycle) | Conducts surge current during negative voltage excursions; identical electrical behavior to anode in CA-series devices. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces per stress test requirements. |
| 1500 W peak pulse power | Meets IEC 61000-4-5 Level 4 (4 kV surge) with margin when mounted on recommended 8.0 mm × 8.0 mm copper pads. |
| Clamping ratio VC/VWM = 1.45 | Minimizes overvoltage exposure to protected ICs-critical for 12 V supply rails and CAN/LIN bus receivers. |
| Low inductance construction | Reduces voltage overshoot during fast-rising transients (<1 ns rise time), improving protection effectiveness for high-speed interfaces. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns; eliminates bake-out requirement in production. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt transients before reaching ADC front-end or signal conditioner. Use Value: Prevents latch-up or permanent damage to 12-bit SAR ADCs by limiting excursion to ≤14.5 V during 103 A surges. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage suppression device on field-side PCB traces, positioned upstream of optocoupler isolation barrier. Use Value: Maintains functional safety integrity by ensuring <1 μs response time and zero false triggering during normal 24 V operation. |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-clamp refinement for data line integrity. Use Value: Enables >100,000 surge cycles without degradation due to glass-passivated junction and low leakage (<5 μA). |
Use Scenario: Securing microcontroller GPIO pins driving H-bridge gate drivers in washing machine motor inverters. IC Role / Device Role / Timing Role: Localized transient absorber adjacent to MOSFET driver ICs to suppress shoot-through-inducing voltage spikes. Use Value: Eliminates need for external RC snubbers by clamping 100 ns–1 μs spikes to <15 V, reducing BOM count and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA | Lower peak power (400 W), same VWM/VC, SMA package (smaller thermal mass) | Limited to lower-energy threats (IEC 61000-4-2 ESD only); unsuitable for lightning-survivable designs | Select when cost and board space constrain requirements and threat level is limited to human-body-model ESD. |
| 1.5KE10CA | Higher VC (17.5 V), through-hole DO-201 package, 1500 W rating | Requires wave soldering; incompatible with fully SMT production; higher clamping increases risk to 12 V logic | Choose only for legacy through-hole designs where rework to SMT is not feasible and 17.5 V clamping is acceptable. |
Compared with SMAJ10CA and 1.5KE10CA, SM15T10CAHE3/9AT delivers superior surge robustness in SMT form factor with tighter clamping and AEC-Q101 validation-making it the preferred choice for new automotive and industrial designs requiring high-reliability transient immunity.
Availability
SM15T10CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and 1500 W surge handling capability.
Supply support for SM15T10CAHE3/9AT 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, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where failure modes must be controlled and performance must remain stable over temperature and lifetime.
FAQ
What does the "CA" suffix indicate in SM15T10CAHE3/9AT?
The "CA" suffix in SM15T10CAHE3/9AT denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SM15T10A), SM15T10CAHE3/9AT has no polarity marking and clamps equally in either direction-essential for AC-coupled or differential signal lines such as CAN bus or RS-485 interfaces.
Is SM15T10CAHE3/9AT qualified for automotive use?
Yes, SM15T10CAHE3/9AT is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 88380 datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD-validating its suitability for under-hood and chassis-mounted automotive electronics where junction temperatures reach +150 °C.
What is the maximum clamping voltage for SM15T10CAHE3/9AT under surge conditions?
The maximum clamping voltage for SM15T10CAHE3/9AT is 14.5 V at 103 A peak pulse current with a 10/1000 μs waveform, measured per Figure 1 in the Vishay datasheet. This value is guaranteed across the full operating temperature range and forms the basis for system-level overvoltage margining-ensuring protected ICs see no more than 14.5 V during worst-case transients.
How does the SMC (DO-214AB) package of SM15T10CAHE3/9AT affect thermal performance?
The SMC (DO-214AB) package of SM15T10CAHE3/9AT provides RθJL = 15 °C/W junction-to-lead thermal resistance, enabling effective heat dissipation during transient events when mounted on 8.0 mm × 8.0 mm copper pads. Its low-profile construction also minimizes parasitic inductance, preserving clamping speed-critical for protecting fast-switching circuits like motor gate drivers.
Can SM15T10CAHE3/9AT replace SM15T10A in an existing design?
No-SM15T10CAHE3/9AT cannot directly replace SM15T10A without circuit review, because SM15T10A is unidirectional (cathode-marked) while SM15T10CAHE3/9AT is bidirectional (no marking). Substitution requires verifying that the protected line is AC-coupled or truly symmetrical; using SM15T10CAHE3/9AT on a DC-biased unidirectional rail may cause unintended conduction or increased leakage.
SM15T10CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, 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)
SM15T10CAHE3/9AT FAQ
1.How can I place an order for SM15T10CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10CAHE3/9AT 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 SM15T10CAHE3/9AT reliable?
The price and inventory of SM15T10CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T10CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10CAHE3/9AT?
SM15T10CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10CAHE3/9AT 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 SM15T10CAHE3/9AT?
For technical support, including SM15T10CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10CAHE3/9AT requirements.
6.How does Aetrix verify that SM15T10CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T10CAHE3/9AT 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 SM15T10CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T10CAHE3/9AT?
All SM15T10CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10CAHE3/9AT, 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 SM15T10CAHE3/9AT part is unused and in its original packaging.
Return procedure for SM15T10CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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