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Vishay General Semiconductor - Diodes Division SM15T100CAHE3/57T
- Part No.:
- SM15T100CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CAHE3/57T.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,576
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Product details
Overview
SM15T100CAHE3/57T 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. It provides robust protection for automotive-grade signal lines against lightning-induced and switching transients.
For engineers reviewing the SM15T100CAHE3/57T datasheet, SM15T100CAHE3/57T pinout, SM15T100CAHE3/57T application, or SM15T100CAHE3/57T equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, 10/1000 μs waveform capability, thermal resistance (RθJL = 15 °C/W), and compatibility with high-impedance transient sources in automotive sensor interfaces.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) of 95.0–105 V measured at 1 mA IT, and clamps to ≤137 V under 11.0 A peak pulse current (10/1000 μs). Its low-inductance SMC package and glass-passivated junction enable fast response (<1 ns) to ESD and surge events.
The device is AEC-Q101 qualified (HE3 suffix), RoHS-compliant, and rated for TJ = –65 °C to +150 °C operation. It fails short-circuit under overstress and meets MSL Level 1 (260 °C reflow peak), making it suitable for automated SMT assembly in harsh-environment automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains lightning-surge-level energy without degradation when mounted on 8.0 mm × 8.0 mm copper pads |
| Stand-off Voltage (VWM) | 85.5 V - maximum continuous reverse voltage before leakage exceeds 1 μA; sets operating margin below breakdown |
| Breakdown Voltage (VBR) | 95.0–105 V at 1 mA - defines symmetric conduction threshold in both directions for bidirectional clamping |
| Clamping Voltage (VC) | 137 V at 11.0 A IPPM - limits transient voltage seen by protected IC/MOSFET during worst-case surge |
| Junction Temperature Range | –65 °C to +150 °C - enables deployment in engine bay, transmission control, and ADAS sensor housings |
| Thermal Resistance (Junction-to-Lead) | 15 °C/W - supports reliable power dissipation during repetitive surges without external heatsinking |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Bidirectional construction has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Transient conduction path | Both terminals function identically; clamps voltage above ±137 V regardless of polarity - no orientation required during placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 1500 W surge rating | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN FD, LIN, sensor bridges) without polarity concerns |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD - supports PPAP documentation |
| Glass-passivated junction | Ensures stable VBR and low leakage over lifetime; eliminates risk of moisture-induced parameter drift in humid under-hood environments |
| Low-inductance SMC package | Minimizes voltage overshoot during <1 ns ESD events; critical for protecting high-speed analog front-ends in radar and camera modules |
Applications
| Automotive Sensor Protection | CAN FD Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors exposed to load-dump and alternator ripple transients in 12 V systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across sensor output lines to limit voltage excursions to ≤137 V. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADCs while maintaining signal integrity up to 2 MHz bandwidth. |
Use Scenario: Guarding CAN FD physical layer transceivers (e.g., TCAN1042) against ISO 7637-3 pulse 2b and IEC 61000-4-5 surges. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF), symmetrical TVS shunting transients between CANH/CANL lines. Use Value: Maintains bit-rate integrity up to 5 Mbps by avoiding signal distortion; AEC-Q101 compliance ensures reliability across vehicle lifecycle. |
| Industrial Motor Drive I/O | Telecom Line Card Surge Protection |
Use Scenario: Shielding encoder feedback lines in servo drives from commutation-induced spikes generated by 48 V BLDC motors. IC Role / Device Role / Timing Role: Standoff-rated (85.5 V) TVS placed at connector entry point to absorb 1500 W pulses without triggering false fault signals. Use Value: Eliminates need for series impedance or RC filtering, preserving edge timing accuracy for position loop stability. |
Use Scenario: Front-end protection for Ethernet PHYs and PoE injectors subjected to lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Bidirectional clamp limiting common-mode transients to <140 V across differential pairs while meeting IEC 61000-4-5 Level 4. Use Value: Enables single-stage protection architecture - reduces BOM count vs. unidirectional + coupling capacitor solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | Lower peak power (400 W), same VWM (85.5 V), higher VC (165 V at 2.5 A), non-AEC-Q101 | Limited to commercial-grade industrial or telecom use; insufficient for automotive load-dump immunity testing | Select SMAJ100CA only for cost-sensitive, non-automotive designs where 1500 W surge margin is not required. |
| 1.5KE100CA | Through-hole DO-201 package, 1500 W rating, same VWM/VC specs, but no AEC-Q101 or MSL-1 qualification | Not suitable for automated SMT production; incompatible with high-density PCB layouts requiring SMC footprint | Choose 1.5KE100CA only for legacy through-hole prototyping or repair scenarios where reflow compatibility is irrelevant. |
Compared with SMAJ100CA and 1.5KE100CA, SM15T100CAHE3/57T uniquely combines AEC-Q101 qualification, SMC surface-mount packaging, and full 1500 W surge capability - enabling drop-in replacement in automotive ECUs without layout or reliability compromise.
Availability
SM15T100CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, CAN FD interface protection, and industrial motor drive I/O requiring stable component supply with guaranteed long-term sourcing.
Supply support for SM15T100CAHE3/57T 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 leader in discrete semiconductors, specializing in diodes, rectifiers, and transient protection devices with emphasis on reliability and automotive qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in automotive and industrial environments, prioritizing AEC-Q101 compliance, low clamping voltage, and SMT manufacturability in the SMC package.
FAQ
What does the "CA" suffix indicate in SM15T100CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration: SM15T100CAHE3/57T clamps symmetrically in both polarities, unlike unidirectional variants ending in "A". This allows placement across differential or AC-coupled lines without polarity consideration - essential for CAN, LIN, and sensor bridge protection where voltage reversals occur.
Is SM15T100CAHE3/57T qualified for automotive use?
Yes, SM15T100CAHE3/57T carries the HE3 suffix, confirming full AEC-Q101 qualification per Vishay's documentation (Rev. 09-Jan-2024, Doc. #88380). It has passed stress tests including temperature cycling, high-temperature reverse bias, and ESD, making it suitable for under-hood and chassis-mounted automotive ECUs.
What is the maximum clamping voltage of SM15T100CAHE3/57T under surge conditions?
SM15T100CAHE3/57T clamps to a maximum of 137 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 11.0 A. This value is measured per Figure 1 and Table on page 2 of the official datasheet and defines the upper voltage limit imposed on protected circuitry during surge events.
Does SM15T100CAHE3/57T require a heatsink for standard operation?
No, SM15T100CAHE3/57T does not require an external heatsink under normal transient conditions. Its RθJL of 15 °C/W and SMC package design allow adequate heat dissipation into PCB copper pads (minimum 8.0 mm × 8.0 mm per terminal), as specified in the derating curves of the datasheet.
How does the "HE3" suffix differ from "E3" in SM15T100CAHE3/57T?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification, whereas "E3" denotes RoHS-compliant commercial-grade parts only. SM15T100CAHE3/57T is therefore certified for automotive applications, while SM15T100CAE3/57T is restricted to industrial or consumer use per Vishay's ordering information table.
SM15T100CAHE3/57T 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:
- 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 (SMCJ)
SM15T100CAHE3/57T FAQ
1.How can I place an order for SM15T100CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CAHE3/57T 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 SM15T100CAHE3/57T reliable?
The price and inventory of SM15T100CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T100CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CAHE3/57T?
SM15T100CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CAHE3/57T 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 SM15T100CAHE3/57T?
For technical support, including SM15T100CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CAHE3/57T requirements.
6.How does Aetrix verify that SM15T100CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T100CAHE3/57T 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 SM15T100CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T100CAHE3/57T?
All SM15T100CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CAHE3/57T, 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 SM15T100CAHE3/57T part is unused and in its original packaging.
Return procedure for SM15T100CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CAHE3/57T Tags
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