My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T100CAHE3/9AT
- Part No.:
- SM15T100CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CAHE3/9AT.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,344
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T100CAHE3/9AT 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. It provides robust protection for automotive-grade sensor signal lines and I/O interfaces against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T100CAHE3/9AT datasheet, SM15T100CAHE3/9AT pinout, SM15T100CAHE3/9AT application, or SM15T100CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 10/1000 μs waveform compliance, thermal resistance (RθJA = 75 °C/W), and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical breakdown (VBR min/max = 95.0–105 V) and clamping behavior (VC = 137 V @ IPPM = 11.0 A). Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and low inductance for fast response to sub-microsecond transients.
The device is thermally optimized for surface-mount use on 8.0 mm × 8.0 mm copper pads, delivering 6.5 W steady-state power dissipation at TA = 50 °C and surviving 200 A non-repetitive forward surge (10 ms half-sine) only in unidirectional variants - not applicable here due to CA suffix indicating bidirectional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy lightning surges without degradation when mounted per recommended pad layout |
| Stand-off Voltage (VWM) | 85.5 V - maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown |
| Breakdown Voltage (VBR) | 95.0–105 V @ 1 mA - defines symmetrical conduction threshold in both directions for bidirectional clamping |
| Clamping Voltage (VC) | 137 V @ 11.0 A IPPM - limits transient voltage seen by protected ICs during worst-case surge events |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive environments and industrial enclosures |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including temperature cycling and HTRB |
Pinout & Package
SM15T100CAHE3/9AT uses the SMC (DO-214AB) package: molded plastic case with two coplanar matte tin-plated leads, no polarity marking (bidirectional), UL 94 V-0 rated compound, and MSL Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path terminal | No functional polarity - either lead serves as input/output for bidirectional clamping; no cathode band marking |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) in telecom and automotive gate drivers |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| Low inductance design | Minimizes voltage overshoot during fast-rising transients (e.g., <100 ns edges from MOSFET switching) |
| AEC-Q101 qualified (HE3 suffix) | Validates reliability for automotive infotainment, ADAS sensor hubs, and body control modules |
| RoHS-compliant, halogen-free option available | Meets EU ELV and China RoHS requirements for end-of-life recyclability and flame retardancy |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD transceiver signal lines in engine control units exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting transient excursions to ≤137 V during 10/1000 μs surges. Use Value: Prevents latch-up or permanent damage to 5 V or 3.3 V transceivers while maintaining signal integrity during normal operation. |
Use Scenario: Shielding analog input channels of programmable logic controllers from 4–20 mA loop transients and relay coil kickback. IC Role / Device Role / Timing Role: Fast-response shunt protector diverting >10 A surge current away from precision ADC front-ends. Use Value: Maintains measurement accuracy by holding clamped voltage below 137 V, well below typical 24 V system rail overvoltage thresholds. |
| Telecom Line Interface | Consumer Power Adapter ESD |
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE injectors against lightning-induced common-mode surges on RJ45 ports. IC Role / Device Role / Timing Role: Symmetrical clamping element placed across differential pairs to suppress mode conversion transients. Use Value: Achieves 1500 W surge handling without derating when used with 8.0 mm × 8.0 mm thermal pads, meeting GR-1089-CORE requirements. |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters subjected to ESD and conducted noise from AC mains. IC Role / Device Role / Timing Role: Final-stage transient limiter between DC-DC output and connector pins. Use Value: Clamps 100 V+ transients to 137 V within 1 ns, preventing damage to USB controller ICs rated for 20 V absolute max. |
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 | Lower peak power (400 W), same VWM (85.5 V), higher RθJA (110 °C/W), non-AEC-Q101 | Limited to consumer-grade power supplies; insufficient for automotive load-dump testing | Select SMAJ100CA only for cost-sensitive, non-automotive designs with lower surge threat profiles |
| SMCJ100CA | Same 1500 W rating and AEC-Q101 option, but larger SMC package variant with identical pinout and thermal performance | Functionally interchangeable; differs only in packaging code (no electrical or mechanical impact) | SMCJ100CA is a direct form-fit-function alternative with identical specifications and qualification status |
Compared with SM15T100CAHE3/9AT, SMAJ100CA offers reduced surge robustness and no automotive qualification, while SMCJ100CA matches all electrical, thermal, and qualification parameters - making it a fully compatible alternative for volume procurement where part numbering flexibility is needed.
Availability
SM15T100CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O conditioning, and telecom line interface designs requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for SM15T100CAHE3/9AT 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, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in space-constrained automotive and industrial systems, balancing 1500 W surge capability with SMC package manufacturability and AEC-Q101 compliance.
FAQ
What does the "CA" suffix indicate in SM15T100CAHE3/9AT?
The "CA" suffix in SM15T100CAHE3/9AT denotes a bidirectional configuration - meaning the device clamps transient voltages symmetrically in both polarities, with identical breakdown (95.0–105 V) and clamping (137 V @ 11.0 A) characteristics across its terminals. This eliminates polarity concerns during PCB layout and supports AC-coupled or differential signal line protection.
Is SM15T100CAHE3/9AT qualified for automotive applications?
Yes, SM15T100CAHE3/9AT is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. It has passed stress tests including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing - validating its suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of SM15T100CAHE3/9AT under surge conditions?
The maximum clamping voltage of SM15T100CAHE3/9AT is 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 Fig. 1 in the Vishay datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Does SM15T100CAHE3/9AT require a heatsink for standard operation?
No, SM15T100CAHE3/9AT does not require an external heatsink for transient suppression duty cycles. Its 6.5 W steady-state power dissipation rating assumes mounting on 8.0 mm × 8.0 mm copper pads per terminal, and its RθJA of 75 °C/W enables adequate self-cooling in typical ambient conditions up to +85 °C.
How does the SMC (DO-214AB) package of SM15T100CAHE3/9AT compare to SMA or SMB footprints?
The SMC (DO-214AB) package of SM15T100CAHE3/9AT measures 7.75 mm × 6.22 mm with 2.62 mm height - larger than SMA (DO-214AC) and SMB (DO-214AA), enabling higher surge energy handling (1500 W vs. 400 W for SMAJ). Its thermal resistance (RθJA = 75 °C/W) is lower than SMA's (~110 °C/W), improving power dissipation efficiency in compact layouts.
SM15T100CAHE3/9AT 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:
- 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)
SM15T100CAHE3/9AT FAQ
1.How can I place an order for SM15T100CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CAHE3/9AT 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 SM15T100CAHE3/9AT reliable?
The price and inventory of SM15T100CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T100CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CAHE3/9AT?
SM15T100CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CAHE3/9AT 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 SM15T100CAHE3/9AT?
For technical support, including SM15T100CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CAHE3/9AT requirements.
6.How does Aetrix verify that SM15T100CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T100CAHE3/9AT 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 SM15T100CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T100CAHE3/9AT?
All SM15T100CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CAHE3/9AT, 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 SM15T100CAHE3/9AT part is unused and in its original packaging.
Return procedure for SM15T100CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CAHE3/9AT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
