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Vishay General Semiconductor - Diodes Division SM15T100CA-E3/9AT
- Part No.:
- SM15T100CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CA-E3/9AT.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,487
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Product details
Overview
SM15T100CA-E3/9AT 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), 137 V maximum clamping voltage at 11.0 A IPPM, and 85.5 V stand-off voltage - used to protect automotive sensor signal lines, industrial I/O ports, and telecom interface circuits against lightning-induced and switching transients.
For engineers reviewing the SM15T100CA-E3/9AT datasheet, SM15T100CA-E3/9AT pinout, SM15T100CA-E3/9AT application, or SM15T100CA-E3/9AT equivalent, key selection criteria include bidirectional clamping behavior, 100 V nominal breakdown voltage range (95–105 V), low thermal resistance (RθJL = 15 °C/W), and AEC-Q101 qualification eligibility via HE3/HM3 suffix variants.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR (95–105 V), VC (137 V @ 11.0 A), and ID (<1.0 μA @ 85.5 V). Its glass-passivated junction ensures stable leakage and robust surge handling without degradation under repeated 10/1000 μs transients.
The device leverages low-inductance SMC packaging and matte tin-plated leads compliant with J-STD-002/JESD 22-B102, enabling reliable soldering and high-current surge conduction up to 11.0 A while maintaining MSL Level 1 moisture sensitivity rating (peak reflow 260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - reverse stand-off voltage; defines maximum continuous operating voltage before significant leakage begins |
| VBR min/max | 95.0 / 105 V - breakdown voltage range at 1.0 mA test current; confirms bidirectional conduction threshold consistency |
| VC @ IPPM | 137 V @ 11.0 A - clamping voltage during 10/1000 μs surge; determines protected circuit's maximum transient exposure level |
| PPPM | 1500 W - peak pulse power rating; supports protection against lightning surges per IEC 61000-4-5 Level 4 |
| RθJL | 15 °C/W - junction-to-lead thermal resistance; enables effective heat dissipation into PCB copper pads without heatsink |
| TJ max | +150 °C - maximum junction temperature; allows operation in under-hood automotive and industrial ambient environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current into device during positive voltage excursion relative to cathode |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current into device during negative voltage excursion relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive interfaces |
| Glass passivated junction | Ensures stable VBR and low leakage over temperature and lifetime, critical for long-term reliability |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector or IC input pins to limit transient voltage excursions. Use Value: Limits clamped voltage to ≤137 V during 11.0 A surges, preserving integrity of 5 V/12 V sensor signal chains and preventing latch-up in downstream ICs. | Use Scenario: Safeguarding PLC digital input modules and fieldbus interfaces (RS-485, Profibus) against EFT and surge events in factory automation systems. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on signal line before isolation or conditioning circuitry. Use Value: Withstands ≥1500 W surges while maintaining <1.0 μA leakage at 85.5 V, ensuring minimal impact on signal integrity during normal operation. |
| Telecom Interface Protection | Power Supply Rail Clamping |
Use Scenario: Shielding Ethernet PHYs, DSL line drivers, and optical module control lines from induced lightning surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Fast-response voltage clamp on differential or single-ended data lines referenced to chassis ground. Use Value: Symmetrical 95–105 V breakdown and 137 V clamping ensure balanced protection across both signal polarities without DC bias dependency. | Use Scenario: Secondary clamping on 100 V intermediate bus rails (e.g., PoE++ PSE stages, industrial SMPS outputs) to contain overshoot during fault conditions. IC Role / Device Role / Timing Role: Overvoltage crowbar element triggered only during abnormal transients, not during normal regulation. Use Value: 85.5 V stand-off allows stable operation under nominal 100 V rail while clamping fast spikes to safe levels before downstream FETs or controllers are stressed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | 600 W PPPM, SMA package, higher RθJA (100 °C/W), same VWM/VBR range | Limited to lower-energy threats; unsuitable for IEC 61000-4-5 Level 4 compliance | Select when board space is constrained and surge threat level is ≤600 W |
| SMCJ100CA | 1500 W PPPM, identical SMC package, same VWM/VBR/VC specs, but non-AEC-Q101 commercial grade | No automotive qualification path; identical electrical performance in non-automotive designs | Select for cost-sensitive industrial applications where AEC-Q101 is not required |
Compared with SMAJ100CA and SMCJ100CA, SM15T100CA-E3/9AT delivers identical 1500 W surge capability and SMC footprint as SMCJ100CA but offers RoHS-compliant, lead-free, and whisker-resistant construction per JESD 201 Class 2 - making it preferred for automotive-tier production and high-reliability industrial deployments.
Availability
SM15T100CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O port hardening, and telecom interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SM15T100CA-E3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
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 readiness are mandatory.
FAQ
What is the peak pulse current rating of SM15T100CA-E3/9AT under a 10/1000 μs waveform?
The SM15T100CA-E3/9AT has a peak pulse current (IPPM) rating of 11.0 A when tested with a 10/1000 μs waveform. This value is derived from its 1500 W peak pulse power rating and 137 V clamping voltage (PPPM = VC × IPPM). The rating assumes mounting on 8.0 mm × 8.0 mm copper pads per terminal, as specified in the Vishay datasheet.
Is SM15T100CA-E3/9AT qualified for automotive use?
SM15T100CA-E3/9AT itself is RoHS-compliant commercial-grade; however, the SM15T100CAHE3 variant (with HE3 suffix) is AEC-Q101 qualified. The -E3/9AT packaging format does not imply automotive qualification - users requiring AEC-Q101 must specify SM15T100CAHE3_A/I or equivalent qualified ordering code.
Does SM15T100CA-E3/9AT have polarity markings on the package?
No, SM15T100CA-E3/9AT is a bidirectional TVS diode and carries no polarity marking on the SMC (DO-214AB) case. Unlike unidirectional variants (e.g., SM15T100A), bidirectional types such as SM15T100CA-E3/9AT feature symmetrical terminal behavior and are marked only with device code "GGV7" per Vishay documentation.
What is the maximum clamping voltage of SM15T100CA-E3/9AT at its rated peak pulse current?
The maximum clamping voltage (VC) of SM15T100CA-E3/9AT is 137 V at 11.0 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during worst-case surge events.
Can SM15T100CA-E3/9AT be used in place of SM15T100A in a design?
No - SM15T100CA-E3/9AT is bidirectional, while SM15T100A is unidirectional. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC-coupled or floating lines, whereas unidirectional types require correct cathode orientation and DC bias. Their VBR and VC values differ slightly due to test condition variations, so direct replacement is not recommended without layout and functional validation.
SM15T100CA-E3/9AT 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:
- 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-E3/9AT FAQ
1.How can I place an order for SM15T100CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CA-E3/9AT 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 SM15T100CA-E3/9AT reliable?
The price and inventory of SM15T100CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T100CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CA-E3/9AT?
SM15T100CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CA-E3/9AT 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 SM15T100CA-E3/9AT?
For technical support, including SM15T100CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CA-E3/9AT requirements.
6.How does Aetrix verify that SM15T100CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T100CA-E3/9AT 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 SM15T100CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T100CA-E3/9AT?
All SM15T100CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CA-E3/9AT, 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 SM15T100CA-E3/9AT part is unused and in its original packaging.
Return procedure for SM15T100CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CA-E3/9AT Tags
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