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Vishay General Semiconductor - Diodes Division SM15T100CA-E3/57T
- Part No.:
- SM15T100CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CA-E3/57T.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,602
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Product details
Overview
SM15T100CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 137 V clamping voltage at 11.0 A IPPM, and 85.5 V stand-off voltage. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T100CA-E3/57T datasheet, SM15T100CA-E3/57T pinout, SM15T100CA-E3/57T application, or SM15T100CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.61), RoHS-compliant commercial-grade construction, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, with breakdown voltage (VBR) of 95.0–105 V measured at 1.0 mA IT, and clamps to ≤137 V at 11.0 A peak pulse current. Its low thermal resistance (RθJL = 15 °C/W) supports reliable energy dissipation during transient events without thermal runaway.
The device features glass-passivated junction, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and exhibits ≤1.0 μA reverse leakage at 85.5 V VWM - enabling stable protection in high-impedance sensor and communication circuits where leakage-induced offset must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single high-energy transients from lightning or inductive load switching without failure |
| Stand-off Voltage (VWM) | 85.5 V - defines maximum continuous reverse operating voltage before significant leakage begins |
| Clamping Voltage (VC @ IPPM) | 137 V at 11.0 A - limits downstream circuit voltage during surge, providing 51.5 V headroom above VWM |
| Breakdown Voltage (VBR) | 95.0–105 V @ 1.0 mA - ensures consistent turn-on threshold with tight 10.5% tolerance |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm footprint, compatible with IPC-7351B standard pads |
| Operating Temperature | −65 °C to +150 °C - supports under-hood automotive and industrial environments without derating |
Pinout & Package
SM15T100CA-E3/57T uses a 2-terminal SMC (DO-214AB) package with no polarity marking (bidirectional). Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (symmetrical) | Either terminal serves as input/output path; bidirectional conduction eliminates orientation constraints during placement |
| Terminal 2 | Anode/Cathode (symmetrical) | Completes low-inductance transient shunt path; terminals share identical electrical behavior in both directions |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management |
| 1500 W peak pulse rating | Handles IEC 61000-4-5 Level 4 (4 kV surge) with margin when mounted on 8.0 mm × 8.0 mm copper pads |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage stress on protected ICs compared to alternatives with ratios >1.7 |
| MSL Level 1 qualification | Supports single-reflow assembly at 260 °C peak without popcorn or delamination risk |
| RoHS-compliant E3 suffix | Meets EU RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 1 moisture sensitivity requirements |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential bus lines to limit transient excursions to safe levels. Use Value: Prevents latch-up or permanent damage to transceivers by clamping surges to ≤137 V while maintaining <1.0 μA leakage at 85.5 V. |
Use Scenario: Safeguarding analog input channels of PLC analog I/O modules connected to 24 V field sensors. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing induced transients from relay coil switching and motor drive noise. Use Value: Ensures ADC reference stability and signal integrity by limiting transient duration to <1 ms and peak voltage to 137 V. |
| Telecom Line Protection | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY front-end circuits in PoE-powered switches from ESD and lightning surges. IC Role / Device Role / Timing Role: Primary-level transient suppressor on 48 V DC input rail and data line pairs. Use Value: Withstands repeated 1500 W surges without degradation, preserving signal integrity and reducing need for secondary protection stages. |
Use Scenario: Input-stage surge suppression in USB-C PD adapters handling 20 V/5 A operation. IC Role / Device Role / Timing Role: Clamp device across primary-side bulk capacitor to absorb line-to-line and line-to-ground transients. Use Value: Maintains 85.5 V working voltage margin above 20 V nominal input, enabling robust operation during brownouts and overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Lower peak pulse power (600 W), same VWM (85.5 V), larger SMB package (DO-214AA) | Limited to lower-energy threats (IEC 61000-4-5 Level 2); less suitable for automotive load dump | Select SMBJ100CA only if system-level surge testing confirms 600 W sufficiency and board space permits larger footprint |
| SMCJ100CA | Same 1500 W rating and SMC package, but higher clamping voltage (146 V @ 10.3 A) and wider VBR tolerance (90–110 V) | Higher VC increases stress on downstream ICs; tighter layout control needed to minimize parasitic inductance | Choose SMCJ100CA only when cost sensitivity outweighs clamping performance, and design allows 9 V higher VC margin |
Compared with SMBJ100CA and SMCJ100CA, SM15T100CA-E3/57T delivers superior clamping ratio (1.61 vs. ≥1.71) and tighter VBR tolerance (±5% vs. ±10%), making it preferred for high-reliability automotive and industrial applications where transient voltage headroom is constrained.
Availability
SM15T100CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O modules, telecom PoE switch front-ends, and consumer power adapter inputs requiring stable component supply across production lifecycles.
Supply support for SM15T100CA-E3/57T 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and MOSFETs with emphasis on reliability, ruggedness, and AEC-Q101 qualification.
The SM15T Series is designed specifically for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where 1500 W surge immunity and bidirectional symmetry are mandatory.
FAQ
What is the clamping voltage of SM15T100CA-E3/57T at its rated peak pulse current?
The SM15T100CA-E3/57T clamps to a maximum of 137 V at 11.0 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during surge events, directly supporting design margin calculations for downstream ICs.
Is SM15T100CA-E3/57T suitable for automotive applications requiring AEC-Q101 qualification?
No - SM15T100CA-E3/57T carries the E3 suffix, indicating RoHS-compliant commercial grade only. For AEC-Q101 qualification, the correct part is SM15T100CAHE3_A/H (with HE3 suffix). The SM15T100CA-E3/57T lacks the extended temperature cycling, humidity bias, and mechanical shock validation required for automotive under-hood use.
How does the bidirectional nature of SM15T100CA-E3/57T affect PCB layout?
The bidirectional structure of SM15T100CA-E3/57T eliminates polarity marking and orientation constraints - either terminal may connect to line or return. This simplifies layout, reduces assembly errors, and enables symmetric placement across differential pairs or AC-coupled signals without dedicated silkscreen or footprint mirroring.
What is the maximum reverse leakage current for SM15T100CA-E3/57T at its stand-off voltage?
At the rated stand-off voltage of 85.5 V and TA = 25 °C, SM15T100CA-E3/57T exhibits a maximum reverse leakage current (ID) of 1.0 μA. This low leakage preserves signal integrity in high-impedance sensor interfaces and avoids loading effects on precision analog circuits powered from the same rail.
Can SM15T100CA-E3/57T be used in place of unidirectional TVS diodes like SM15T100A-E3/57T?
No - SM15T100CA-E3/57T is strictly bidirectional and cannot replace unidirectional types in DC-biased applications where forward conduction must be blocked. Unidirectional variants (e.g., SM15T100A-E3/57T) provide cathode-anode polarity control and lower forward voltage drop, which is essential for DC power rail protection.
SM15T100CA-E3/57T 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T100CA-E3/57T FAQ
1.How can I place an order for SM15T100CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CA-E3/57T 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 SM15T100CA-E3/57T reliable?
The price and inventory of SM15T100CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T100CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CA-E3/57T?
SM15T100CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CA-E3/57T 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 SM15T100CA-E3/57T?
For technical support, including SM15T100CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CA-E3/57T requirements.
6.How does Aetrix verify that SM15T100CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T100CA-E3/57T 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 SM15T100CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T100CA-E3/57T?
All SM15T100CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CA-E3/57T, 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 SM15T100CA-E3/57T part is unused and in its original packaging.
Return procedure for SM15T100CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CA-E3/57T Tags
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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