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Vishay General Semiconductor - Diodes Division SM15T10CAHE3/57T
- Part No.:
- SM15T10CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10CAHE3/57T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,637
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Product details
Overview
SM15T10CAHE3/57T 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 standoff voltage (VWM), and clamping voltage of 17.0 V at 87.5 A peak pulse current. It provides robust protection for automotive sensor signal lines against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T10CAHE3/57T datasheet, SM15T10CAHE3/57T pinout, SM15T10CAHE3/57T application, or SM15T10CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (1.7×VWM), RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 11.4–12.6 V (min/max) under 1.0 mA test current. Its clamping behavior is defined by a 10/1000 μs waveform, delivering 17.0 V maximum clamping voltage at 87.5 A IPPM, and exhibits thermal resistance of 75 °C/W (junction-to-ambient) when mounted per recommended pad layout.
The device features glass-passivated junction construction, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is qualified to AEC-Q101 for automotive use. Its failure mode under overstress is a short circuit, and it supports surge currents up to 200 A (10 ms half-sine, unidirectional only - not applicable here due to bidirectional configuration).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA - Ensures reliable turn-on within tight tolerance band for consistent transient response |
| VC @ IPPM | 17.0 V at 87.5 A (10/1000 μs) - Limits protected circuit voltage during worst-case surge, enabling downstream IC survival |
| PPPM | 1500 W - Sustains high-energy transients typical of automotive load-dump or inductive kick events |
| TJ max | +150 °C - Supports operation in under-hood automotive environments without derating at ambient ≤125 °C |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height for high-power density |
Pinout & Package
SM15T10CAHE3/57T uses the SMC (DO-214AB) package: a molded plastic case with two coplanar matte tin-plated leads, no polarity marking (bidirectional), and mechanical dimensions of 7.75 mm × 6.22 mm × 2.62 mm (L × W × H). Mounting requires 8.0 mm × 8.0 mm copper pads per terminal per Vishay's thermal design recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional conduction path | No functional distinction between terminals; either lead serves as input/output for transient energy diversion in both directions |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units and ADAS sensor interfaces |
| 1500 W peak pulse power | Handles high-energy threats such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surges |
| Low clamping ratio (1.7×VWM) | Minimizes overvoltage stress on protected ICs like CAN transceivers or analog front-ends |
| MSL Level 1 rating | Permits standard SMT reflow without moisture sensitivity handling, reducing manufacturing complexity |
Applications
| Automotive Sensor Protection | CAN Bus Interface Protection |
|---|---|
Use Scenario: Protecting wheel speed, temperature, or pressure sensor outputs in engine bay or chassis modules exposed to inductive switching noise and load dump. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to shunt transients before reaching signal conditioning amplifier or microcontroller ADC input. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor interface ICs during 100 V/100 A surge events per ISO 7637-2. | Use Scenario: Safeguarding high-speed CAN FD transceivers (e.g., TJA1044) against ESD and coupled surges on vehicle wiring harnesses. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bidirectional clamp placed adjacent to transceiver pins to maintain signal integrity while suppressing >1 kV transients. Use Value: Maintains CAN bit timing accuracy and prevents bus-off errors during EMC testing (ISO 11452-4) without adding signal distortion. |
| Industrial PLC I/O Protection | Telecom Line Interface Protection |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced transients in factory automation environments. IC Role / Device Role / Timing Role: Primary surge suppression stage ahead of optocoupler or Schmitt-trigger input circuitry on 24 V DC inputs. Use Value: Eliminates false triggering and extends mean time between failures (MTBF) in dusty, high-noise industrial settings. | Use Scenario: Protecting Ethernet PHY or RS-485 transceivers in base station remote radio units connected to outdoor cabling. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges entering via twisted-pair data lines, coordinated with gas discharge tube (GDT) upstream. Use Value: Enables compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) while preserving signal bandwidth up to 100 Mbps. |
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 | 600 W PPPM, SMA package (smaller thermal mass), VC = 17.0 V @ 35 A | Limited to lower-energy threats; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 direct injection | Select when space-constrained and threat level is limited to ESD + low-energy switching noise |
| SMCJ10CA | 1500 W PPPM, identical SMC package, VC = 17.0 V @ 87.5 A, but commercial-grade (not AEC-Q101) | Lacks automotive qualification; may require additional validation for under-hood deployment | Select for cost-sensitive industrial applications where AEC-Q101 is not mandated |
Compared with SMAJ10CA and SMCJ10CA, SM15T10CAHE3/57T uniquely combines 1500 W surge capability, AEC-Q101 qualification, and RoHS-compliant matte tin terminations in a single SMC-outline device-making it the preferred choice for production automotive electronics requiring zero-rework qualification and traceable sourcing.
Availability
SM15T10CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, CAN bus interface hardening, and industrial PLC I/O circuits requiring stable component supply across multi-year production cycles.
Supply support for SM15T10CAHE3/57T 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 high-reliability and automotive-grade performance.
The SM15T Series is designed specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where 1500 W surge immunity and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in SM15T10CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration, meaning SM15T10CAHE3/57T provides symmetrical clamping for both positive and negative transients without polarity dependency. This distinguishes it from unidirectional variants (e.g., SM15T10A), which require correct cathode orientation. The CA version is essential for protecting AC-coupled or floating signal paths such as CAN differential pairs or sensor bridges.
Is SM15T10CAHE3/57T suitable for automotive applications?
Yes, SM15T10CAHE3/57T is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix. It meets stringent requirements for temperature cycling, humidity resistance, and surge endurance required in engine control, body electronics, and ADAS systems. Its 1500 W rating supports compliance with ISO 7637-2 Pulse 5a and ISO 16750-2 load-dump tests.
What is the clamping voltage of SM15T10CAHE3/57T under surge conditions?
The maximum clamping voltage (VC) of SM15T10CAHE3/57T is 17.0 V when subjected to an 87.5 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions and ensures protected downstream components (e.g., 5 V microcontrollers or CAN transceivers) remain within safe operating voltage limits during transient events.
Does SM15T10CAHE3/57T have a polarity marking on the package?
No, SM15T10CAHE3/57T has no polarity marking because it is a bidirectional TVS diode. Both terminals are functionally identical, and the device clamps equally in either direction. This eliminates orientation errors during automated placement and simplifies PCB layout for differential or floating signal lines.
What is the thermal resistance of SM15T10CAHE3/57T, and how does it affect layout?
SM15T10CAHE3/57T 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. To maintain reliability under repeated surge events, PCB layout must replicate this pad area and avoid excessive trace length or narrow traces that increase thermal impedance and risk localized overheating.
SM15T10CAHE3/57T 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)
SM15T10CAHE3/57T FAQ
1.How can I place an order for SM15T10CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10CAHE3/57T 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 SM15T10CAHE3/57T reliable?
The price and inventory of SM15T10CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T10CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10CAHE3/57T?
SM15T10CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10CAHE3/57T 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 SM15T10CAHE3/57T?
For technical support, including SM15T10CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10CAHE3/57T requirements.
6.How does Aetrix verify that SM15T10CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T10CAHE3/57T 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 SM15T10CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T10CAHE3/57T?
All SM15T10CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10CAHE3/57T, 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 SM15T10CAHE3/57T part is unused and in its original packaging.
Return procedure for SM15T10CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10CAHE3/57T Tags
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