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Vishay General Semiconductor - Diodes Division SM15T100CAHE3_A/I
- Part No.:
- SM15T100CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CAHE3_A/I.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,621
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Product details
Overview
SM15T100CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) 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. 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 SM15T100CAHE3_A/I datasheet, SM15T100CAHE3_A/I pinout, SM15T100CAHE3_A/I application, or SM15T100CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C junction temperature rating, low-inductance SMC package, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
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 under 11.0 A peak pulse current (10/1000 μs). Its glass-passivated junction ensures stable leakage (<1.0 μA at 85.5 V) and robust surge endurance.
Designed for high-energy transient suppression, it features low thermal resistance (RθJL = 15 °C/W), MSL Level 1 moisture sensitivity, and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The device fails short-circuit under overstress - a predictable, system-safe failure mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains lightning-surge-level energy without degradation |
| Stand-off Voltage (VWM) | 85.5 V - maximum continuous reverse voltage before conduction begins |
| Breakdown Voltage (VBR) | 95.0–105 V at 1.0 mA - precise symmetric triggering threshold for bidirectional protection |
| Clamping Voltage (VC) | 137 V at 11.0 A IPPM - limits downstream voltage stress during transient events |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - surface-mount footprint with 7.75 mm × 6.22 mm body and 2.06 mm height |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test requirements |
Pinout & Package
SM15T100CAHE3_A/I is a two-terminal bidirectional TVS diode in SMC (DO-214AB) package; no polarity marking is present on the case. Terminals are matte tin-plated leads suitable for reflow soldering per J-STD-020 (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as input/output - no DC polarity dependency; enables placement flexibility on PCB |
| Case (body) | Thermal and mechanical interface | Non-conductive molding compound (UL 94 V-0); dissipates heat via copper pad layout (8.0 mm × 8.0 mm recommended) |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 Level 4 (4 kV line-to-earth) surges |
| Low clamping ratio (VC/VBR ≈ 1.34) | Minimizes overvoltage exposure to protected ICs while maintaining margin above VWM |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free assembly without pre-baking or special handling |
| Glass-passivated junction | Ensures stable leakage current (<1.0 μA) and long-term reliability under thermal cycling |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/FlexRay signal lines in wheel speed or pressure sensors exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching PHY or MCU. Use Value: Maintains signal integrity by limiting voltage excursion to ≤137 V during 10/1000 μs surges up to 11 A, preventing latch-up or gate oxide damage in 3.3 V/5 V receivers. |
Use Scenario: Safeguarding RS-485/RS-232 ports in PLC backplanes subjected to EFT bursts and lightning-induced common-mode noise. IC Role / Device Role / Timing Role: Primary transient suppressor across differential pair or between line and ground, operating symmetrically without biasing. Use Value: Withstands repeated 40 A (8/20 μs) surges per IEC 61000-4-4 due to low dynamic impedance and 150 °C TJ max rating. |
| Telecom Line Card Protection | Consumer Power Adapter Input |
Use Scenario: Front-end protection on DSL or PoE-powered Ethernet line cards where external cabling introduces induced surges. IC Role / Device Role / Timing Role: First-stage clamping device ahead of GDT or MOV secondary protection, absorbing fast-rising edges. Use Value: Low inductance (<1.5 nH typical) enables sub-100 ns response, capturing energy before slower devices activate. |
Use Scenario: Secondary-side transient suppression on 12 V/24 V DC outputs of wall adapters used in smart home hubs and audio equipment. IC Role / Device Role / Timing Role: Bidirectional clamp across output rails to prevent overvoltage damage during hot-plug or capacitive load switching. Use Value: 85.5 V VWM allows safe operation with 24 V nominal systems while providing headroom for ripple and tolerance drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ100CA | Same 100 V VWM, but lower PPPM (400 W), higher VC (165 V at 6.5 A), SMC package | Suitable for lower-energy threats only; not rated for AEC-Q101 | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| ON Semiconductor 1.5KE100CA | Higher power (1500 W), DO-201 package (axial leaded), larger footprint, no AEC-Q101 | Requires through-hole assembly; unsuitable for high-density SMT layouts | Choose only if legacy board design mandates axial components or thermal mass exceeds SMC capability |
Compared with SMAJ100CA and 1.5KE100CA, SM15T100CAHE3_A/I delivers AEC-Q101 qualification, tighter clamping (137 V vs. ≥165 V), and optimized SMC footprint for automated SMT - making it the preferred choice for new automotive and industrial designs requiring high-reliability, space-constrained transient suppression.
Availability
SM15T100CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O terminals, and telecom line card protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SM15T100CAHE3_A/I 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 and application-specific performance.
The SM15T Series is engineered for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where predictable clamping, AEC-Q101 validation, and robust surge endurance are mandatory.
FAQ
What does the "CA" suffix indicate in SM15T100CAHE3_A/I?
The "CA" suffix in SM15T100CAHE3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions, with identical VBR and VC characteristics across polarity. This eliminates the need for orientation-aware placement and supports AC-coupled or floating signal line protection.
Is SM15T100CAHE3_A/I suitable for automotive applications?
Yes, SM15T100CAHE3_A/I is AEC-Q101 qualified (indicated by the "HE3" suffix), having passed stress tests including temperature cycling, humidity bias HAST, and mechanical shock. It is approved for use in engine control units, ADAS camera modules, and body electronics where transient immunity and long-term reliability are critical.
What is the maximum clamping voltage of SM15T100CAHE3_A/I under surge conditions?
The maximum clamping voltage (VC) of SM15T100CAHE3_A/I is 137 V when subjected to a 10/1000 μs waveform at 11.0 A peak pulse current (IPPM), as specified in the Vishay datasheet (Document Number: 88380, Rev. 09-Jan-2024). This value defines the upper voltage limit imposed on protected circuitry during transient events.
How does the SMC (DO-214AB) package of SM15T100CAHE3_A/I compare to SMA or SMB?
The SMC (DO-214AB) package of SM15T100CAHE3_A/I offers higher power handling (1500 W) than SMA (DO-214AC, ~400 W) or SMB (DO-214AA, ~600 W), with larger copper pad area (8.0 mm × 8.0 mm) enabling superior thermal dissipation. Its 7.75 mm × 6.22 mm footprint balances density and robustness for high-energy protection.
Does SM15T100CAHE3_A/I require a heatsink for standard operation?
No, SM15T100CAHE3_A/I does not require an external heatsink under normal transient conditions. Its RθJL of 15 °C/W and RθJA of 75 °C/W allow adequate thermal dissipation when mounted on the recommended 8.0 mm × 8.0 mm copper pads. Heatsinking is unnecessary unless subjected to repetitive high-duty-cycle surges exceeding datasheet derating curves.
SM15T100CAHE3_A/I 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T100CAHE3_A/I FAQ
1.How can I place an order for SM15T100CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CAHE3_A/I 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 SM15T100CAHE3_A/I reliable?
The price and inventory of SM15T100CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM15T100CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CAHE3_A/I?
SM15T100CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CAHE3_A/I 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 SM15T100CAHE3_A/I?
For technical support, including SM15T100CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CAHE3_A/I requirements.
6.How does Aetrix verify that SM15T100CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM15T100CAHE3_A/I 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 SM15T100CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM15T100CAHE3_A/I?
All SM15T100CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CAHE3_A/I, 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 SM15T100CAHE3_A/I part is unused and in its original packaging.
Return procedure for SM15T100CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CAHE3_A/I Tags
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