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Vishay General Semiconductor - Diodes Division SM15T100CAHM3_A/I
- Part No.:
- SM15T100CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CAHM3_A/I.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,493
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Product details
Overview
SM15T100CAHM3_A/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), 137 V clamping voltage at 11.0 A IPPM, and AEC-Q101 qualified for automotive use. It protects signal lines and power rails in sensor units and I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T100CAHM3_A/I datasheet, SM15T100CAHM3_A/I pinout, SM15T100CAHM3_A/I application, or SM15T100CAHM3_A/I equivalent, key selection criteria include bidirectional clamping behavior, 100 V reverse standoff rating, 137 V max clamping at 11 A, AEC-Q101 qualification status, and SMC package thermal performance under high-impedance surge conditions.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical breakdown (VBR min/max = 95.0–105 V) and clamping characteristics in either direction. Its low-inductance SMC package and glass-passivated junction enable fast response (<1 ns) to ESD and surge events while maintaining stable clamping under repetitive transients.
The device is designed for high-source-impedance threat environments-such as I/O lines and sensor interfaces-where peak current remains within its 11.0 A IPPM rating at 137 V clamping. Thermal resistance (RθJL = 15 °C/W) supports reliable operation up to TJ = 150 °C when mounted per recommended 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V reverse stand-off voltage - defines maximum continuous operating voltage before conduction begins |
| VBR (min/max) | 95.0 V / 105 V at 1.0 mA IT - ensures predictable, symmetric breakdown in both directions |
| VC @ IPPM | 137 V at 11.0 A (10/1000 μs) - limits downstream voltage during worst-case surge to safe levels |
| PPPM | 1500 W peak pulse power - withstands lightning-induced surges per IEC 61000-4-5 Level 4 |
| TJ max. | 150 °C - enables deployment in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - surface-mount, MSL Level 1, 260 °C reflow compatible, halogen-free RoHS-compliant |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
SM15T100CAHM3_A/I is a two-terminal bidirectional TVS diode in SMC (DO-214AB) package. No polarity marking is present on bidirectional variants; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals conduct identically during positive or negative overvoltage events; no DC polarity dependency |
| Case (cathode band absent) | Thermal and mechanical interface | Exposed metal slug provides low RθJL = 15 °C/W path to PCB copper; no cathode band marking confirms bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 1500 W surge protection | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Glass-passivated junction | Ensures stable VBR and low leakage (<1 μA at VWM) across temperature and lifetime |
| AEC-Q101 qualification (HM3 suffix) | Validates reliability for automotive infotainment, ADAS sensors, and body control modules |
| Low-inductance SMC package | Minimizes voltage overshoot during <1 ns ESD events; supports >30 kV contact discharge immunity |
| Halogen-free, RoHS-compliant construction | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, responding within nanoseconds to overvoltage events. Use Value: Clamps transients to ≤137 V while sustaining 11 A peak current, preventing latch-up or damage to 5 V/12 V interface ICs. | Use Scenario: Safeguarding PLC digital input modules connected to 24 V field wiring exposed to relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Primary surge suppression device at connector entry point, shunting energy before it reaches optocoupler or microcontroller input pins. Use Value: 1500 W peak power rating handles repeated 10/1000 μs transients common in factory automation without degradation. |
| Telecom Line Protection | Consumer Device USB/DisplayPort |
Use Scenario: Shielding Ethernet PHY front-end and PoE-powered device interfaces from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level protector downstream of gas discharge tube (GDT), providing precise clamping after GDT fires. Use Value: 100 V VWM aligns with IEEE 802.3af/at PoE voltage ranges; 137 V VC ensures PHY ICs remain within absolute maximum ratings. | Use Scenario: Adding robust ESD and surge immunity to USB-C or DisplayPort alternate mode lanes in laptops and docking stations. IC Role / Device Role / Timing Role: Board-level TVS placed adjacent to connector, absorbing ±15 kV contact ESD (IEC 61000-4-2) and lower-energy surges. Use Value: Low capacitance (typ. <100 pF at 0 V) avoids signal integrity degradation on high-speed differential pairs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | 600 W PPPM, SMA package, higher RθJA (90 °C/W), non-AEC-Q101 | Limited to commercial-grade consumer/industrial use; insufficient for automotive under-hood thermal cycling | Select only if surge threat level is ≤600 W and AEC-Q101 is not required |
| 1.5KE100CA | 1500 W PPPM but DO-201AE axial package; higher inductance, manual assembly only | Not suitable for automated SMT lines; incompatible with high-density PCB layouts | Choose only for legacy through-hole designs where rework or board space permits axial components |
Compared with SMAJ100CA and 1.5KE100CA, SM15T100CAHM3_A/I delivers automotive-grade reliability in an SMT-optimized package with superior thermal performance (RθJL = 15 °C/W) and lower surge impedance-critical for protecting high-speed interfaces in modern vehicle ECUs and industrial controllers.
Availability
SM15T100CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply, AEC-Q101 compliance, and consistent SMC package form factor.
Supply support for SM15T100CAHM3_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 high-reliability, automotive-qualified components.
The SM15T Series is engineered for robust transient suppression in harsh electromagnetic environments-targeting automotive, industrial, and telecom applications where failure modes must be controlled and clamping precision is critical.
FAQ
What does the "CA" suffix indicate in SM15T100CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration: SM15T100CAHM3_A/I conducts and clamps symmetrically for both positive and negative transients, unlike unidirectional "A" variants that require correct polarity orientation. This eliminates installation errors in AC-coupled or floating circuits and simplifies layout for differential interfaces like CAN or RS-485.
Is SM15T100CAHM3_A/I suitable for IEC 61000-4-5 surge testing?
Yes, SM15T100CAHM3_A/I is rated for 1500 W peak pulse power with a 10/1000 μs waveform-matching the open-circuit voltage waveform defined in IEC 61000-4-5 Level 4 (4 kV line-to-earth). When used with appropriate series impedance and PCB layout per Vishay's recommended pad dimensions, it meets system-level surge immunity requirements for industrial and automotive equipment.
How does the HM3 suffix differ from E3 or M3 in SM15T100CAHM3_A/I?
The HM3 suffix indicates halogen-free, RoHS-compliant construction with full AEC-Q101 qualification-required for automotive under-hood and safety-critical modules. In contrast, E3 is RoHS-compliant commercial grade, and M3 adds halogen-free compliance but lacks AEC-Q101 validation. SM15T100CAHM3_A/I thus supports Tier 1 automotive BOMs where material and reliability certifications are mandatory.
What is the maximum clamping voltage of SM15T100CAHM3_A/I under surge conditions?
The maximum clamping voltage (VC) of SM15T100CAHM3_A/I is 137 V at 11.0 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is guaranteed across temperature and lifetime per Vishay's characterization data and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Can SM15T100CAHM3_A/I replace SM15T100A in an existing design?
No-SM15T100CAHM3_A/I is bidirectional while SM15T100A is unidirectional. Swapping them without circuit review risks improper clamping during negative transients or forward conduction in DC-biased paths. The "CA" variant has no polarity marking and symmetrical IV characteristics; the "A" variant requires cathode alignment and blocks reverse current. Layout and schematic verification is essential before substitution.
SM15T100CAHM3_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 (SMC)
SM15T100CAHM3_A/I FAQ
1.How can I place an order for SM15T100CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CAHM3_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 SM15T100CAHM3_A/I reliable?
The price and inventory of SM15T100CAHM3_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 SM15T100CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SM15T100CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CAHM3_A/I?
SM15T100CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CAHM3_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 SM15T100CAHM3_A/I?
For technical support, including SM15T100CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CAHM3_A/I requirements.
6.How does Aetrix verify that SM15T100CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SM15T100CAHM3_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 SM15T100CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SM15T100CAHM3_A/I?
All SM15T100CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CAHM3_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 SM15T100CAHM3_A/I part is unused and in its original packaging.
Return procedure for SM15T100CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CAHM3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
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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