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Vishay General Semiconductor - Diodes Division SM15T100CAHM3/I
- Part No.:
- SM15T100CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CAHM3/I.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,744
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Product details
Overview
SM15T100CAHM3/I 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), 100 V standoff voltage (VWM), and clamping voltage of 137 V at 11.0 A peak pulse current. It provides robust protection for automotive-grade signal lines and power rails against lightning-induced and switching transients.
For engineers reviewing the SM15T100CAHM3/I datasheet, SM15T100CAHM3/I pinout, SM15T100CAHM3/I application, or SM15T100CAHM3/I equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, halogen-free RoHS compliance, and verified 137 V clamping at 11 A under standardized 10/1000 μs surge conditions.
Technical Context
This device operates as a voltage-clamped shunt protector with symmetrical breakdown in both polarities due to its bidirectional construction. Its glass-passivated junction ensures stable leakage performance (<1 μA at 100 V) and low dynamic impedance during transient events.
Designed for high-energy threat suppression, it delivers 1500 W peak pulse power with thermal resistance of 75 °C/W (junction-to-ambient) and supports operation up to +150 °C junction temperature. The SMC package enables automated placement while maintaining low inductance for fast response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 95.0 V / 105 V - Breakdown occurs within this range at 1 mA test current, confirming bidirectional symmetry |
| VC @ IPPM | 137 V @ 11.0 A - Clamping voltage under 10/1000 μs surge, defining worst-case overvoltage seen by protected circuit |
| PPPM | 1500 W - Peak pulse power handling capability, enabling protection against lightning surges per IEC 61000-4-5 |
| TJ max | +150 °C - Maximum junction temperature, supporting under-hood automotive deployment |
| Package | SMC (DO-214AB) - Surface-mount package with 7.75 mm × 8.13 mm footprint and 2.06 mm height, optimized for PCB space and thermal dissipation |
Pinout & Package
SM15T100CAHM3/I uses a 2-terminal SMC (DO-214AB) package with no polarity marking for bidirectional operation. Terminals are matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during positive half-cycle | One side of symmetrical PN junction; functions identically to cathode under reverse bias |
| Cathode | Current entry point during negative half-cycle | Other side of symmetrical PN junction; identical electrical role to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global automotive and industrial production |
| 1500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed across power input rail upstream of DC/DC converter. Use Value: Limits voltage to ≤137 V during 10/1000 μs surges, preventing damage to 16 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional clamp on differential or single-ended signal lines exposed to ESD and inductive coupling. Use Value: Maintains signal integrity below 137 V clamping threshold while adding <1 pF parasitic capacitance at 1 MHz. |
| Telecom Data Line Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Shielding RS-485 transceivers in outdoor telecom cabinets from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on twisted-pair data lines, coordinated with secondary GDT or MOV stages. Use Value: Absorbs up to 1500 W energy without degradation, ensuring >100,000 surge cycles per MIL-STD-883H Method 3015.8. | Use Scenario: Hardening USB 2.0 VBUS and D+/D− lines in smart home hubs against ESD and hot-plug transients. IC Role / Device Role / Timing Role: Bidirectional clamping element meeting IEC 61000-4-2 Level 4 (±15 kV contact) requirements. Use Value: Provides sub-100 ns response time and <1 μA leakage at 100 V, preserving bus idle state integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | 600 W peak pulse power (10/1000 μs); same VWM and VC, but lower IPPM (6.5 A) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| 1.5KE100CA | Through-hole DO-201 package; 1500 W rating but larger footprint and higher inductance | Lacks MSL Level 1 reflow compatibility; unsuitable for high-density SMT designs | Choose only for legacy through-hole assemblies where board real estate and reflow profile are not constraints |
Compared with SMAJ100CA and 1.5KE100CA, SM15T100CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free SMC packaging, and full 1500 W surge capability-making it the only option suitable for next-generation automotive electronics requiring zero-defect reliability and lead-free reflow compatibility.
Availability
SM15T100CAHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, telecom infrastructure, and consumer USB interface protection requiring stable component supply and long-term lifecycle support.
Supply support for SM15T100CAHM3/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 TVS devices with emphasis on high-reliability and automotive-grade solutions.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments, targeting automotive powertrain, body electronics, and industrial control systems where AEC-Q101 compliance and 1500 W surge handling are mandatory.
FAQ
What is the clamping voltage of SM15T100CAHM3/I at its rated peak pulse current?
The SM15T100CAHM3/I has a maximum clamping voltage (VC) of 137 V when subjected to its specified peak pulse current of 11.0 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the upper voltage limit imposed on protected circuits during surge events.
Is SM15T100CAHM3/I qualified for automotive applications?
Yes, SM15T100CAHM3/I carries the HM3 suffix, indicating halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It is certified for use in automotive electronics including engine control modules, infotainment systems, and ADAS sensors per the qualification requirements defined in the Vishay SM15T datasheet revision 09-Jan-2024.
What does the "CA" suffix indicate in SM15T100CAHM3/I?
The "CA" suffix in SM15T100CAHM3/I denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SM15T100AHM3/I), it has no polarity marking and functions identically regardless of applied voltage polarity.
What is the maximum operating temperature for SM15T100CAHM3/I?
The SM15T100CAHM3/I has a maximum junction temperature (TJ) of +150 °C, as specified in the Thermal Characteristics table of Vishay document 88380. This rating enables reliable operation in under-hood automotive environments and high-temperature industrial enclosures without derating at ambient temperatures up to +125 °C.
Does SM15T100CAHM3/I meet moisture sensitivity level requirements for surface-mount assembly?
Yes, SM15T100CAHM3/I meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows unlimited floor life and compatibility with standard lead-free reflow profiles without baking or special handling prior to assembly.
SM15T100CAHM3/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:
- Discontinued at Digi-Key
- 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 (SMC)
SM15T100CAHM3/I FAQ
1.How can I place an order for SM15T100CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CAHM3/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 SM15T100CAHM3/I reliable?
The price and inventory of SM15T100CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM15T100CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CAHM3/I?
SM15T100CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CAHM3/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 SM15T100CAHM3/I?
For technical support, including SM15T100CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CAHM3/I requirements.
6.How does Aetrix verify that SM15T100CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM15T100CAHM3/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 SM15T100CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM15T100CAHM3/I?
All SM15T100CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CAHM3/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 SM15T100CAHM3/I part is unused and in its original packaging.
Return procedure for SM15T100CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CAHM3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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