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Vishay General Semiconductor - Diodes Division 1.5SMC100CAHE3/9AT
- Part No.:
- 1.5SMC100CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC100CAHE3/9AT.pdf
- Description:
- TVS DIODE 85.5VWM 137VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,120
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Product details
Overview
1.5SMC100CAHE3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 100 V standoff voltage (VWM), 137 V maximum clamping voltage (VC) at 10.9 A peak pulse current, and 1500 W peak pulse power with 10/1000 µs waveform - deployed for robust overvoltage protection of automotive sensor signal lines, industrial I/O ports, and telecom interface circuits.
For engineers reviewing the 1.5SMC100CAHE3/9AT datasheet, 1.5SMC100CAHE3/9AT pinout, 1.5SMC100CAHE3/9AT application, or 1.5SMC100CAHE3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 1500 W surge capability, low incremental surge resistance, and compatibility with automated SMT assembly on standard PCB pad layouts per JEDEC DO-214AB footprint.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown behavior in both polarities due to its bidirectional construction. It exhibits a nominal breakdown voltage (VBR) of 105 V minimum / 116 V maximum at 1 mA test current, and achieves full clamping within <1 ps response time under fast-rising transients.
The 1.5SMC100CAHE3/9AT features glass-passivated junction technology, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and delivers stable performance across -65 °C to +150 °C operating junction temperature range - enabling use in under-hood automotive environments and high-reliability industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 100 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below system rail. |
| VBR (Breakdown) | 105–116 V at 1 mA - Confirmed symmetric breakdown threshold in both directions; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 137 V at 10.9 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure; validated with repetitive 0.01% duty cycle. |
| IPPM | 10.9 A - Peak surge current capacity under standardized 10/1000 µs waveform; directly correlates to energy absorption (E ≈ 1.5 kJ). |
| TJmax | +150 °C - Enables operation in high-ambient environments such as engine control units and motor drives. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path to ground or rail during either polarity surge; identical electrical role to cathode. |
| Cathode | Transient return path (bidirectional) | Functionally interchangeable with anode; no marking required per bidirectional design; enables placement flexibility on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in AC-coupled or floating signal paths. |
| AEC-Q101 qualification | Validated for automotive applications including powertrain and ADAS sensors - supports long-term reliability under thermal shock and humidity bias. |
| 1500 W peak pulse rating | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surges up to 4 kV/2 Ω without degradation. |
| MSL Level 1 | Compatible with standard lead-free reflow profiles (peak 260 °C); no moisture sensitivity handling required pre-assembly. |
| Glass passivated junction | Enhances long-term stability and leakage immunity versus polymer-based TVS devices - critical for low-power sensor interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground - absorbs energy while limiting voltage excursion to ≤137 V. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V interface ICs during ISO 7637-2 Pulse 5a (12 V system, 100 V/100 ms), ensuring functional safety compliance. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring faults and relay coil flyback. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals - activates only during >100 V transients, remaining invisible during normal operation. Use Value: Maintains signal integrity with <1 μA leakage at 100 V, while clamping 1500 W surges to protect optocoupler input stages and microcontroller GPIOs. |
| Telecom Line Interface | Consumer Power Adapter ESD |
|
Use Scenario: Shielding RS-485/RS-232 data lines in base station equipment from lightning-induced surges and EFT bursts. IC Role / Device Role / Timing Role: Fast-response bidirectional suppressor placed differential-mode across twisted-pair lines - clamps common-mode and differential transients simultaneously. Use Value: Achieves <1 ps response time and 137 V clamping to preserve signal eye diagram integrity during 10/1000 µs surges up to 4 kV. |
Use Scenario: Adding secondary-level surge immunity to USB-C and barrel-jack power inputs in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Secondary TVS after primary MOV/fuse stage - handles residual fast transients that bypass bulk suppression. Use Value: Provides precise 100 V standoff and low capacitance (<100 pF) to avoid degrading high-frequency power delivery signaling (e.g., USB PD negotiation). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Lower peak power (600 W), same VWM/VC, SMB package (smaller footprint, lower thermal mass) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not suitable for ISO 7637-2 load dump | Select when board space is constrained and surge energy is ≤600 W; verify thermal derating at elevated ambient temperatures. |
| 1.5KE100CA | Same 1500 W rating but through-hole DO-201AE package; higher RθJA (100 °C/W vs. 75 °C/W) | Requires wave soldering or hand assembly; incompatible with fully automated SMT lines | Choose only for legacy through-hole designs or prototyping where rework tolerance outweighs production efficiency. |
Compared with SMBJ100CA and 1.5KE100CA, the 1.5SMC100CAHE3/9AT uniquely combines AEC-Q101 qualification, SMC surface-mount compatibility, and full 1500 W surge handling - making it the preferred choice for volume automotive and industrial SMT production requiring zero layout change from standard DO-214AB footprints.
Availability
1.5SMC100CAHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, telecom line interface protection, and consumer power adapter surge hardening requiring stable component supply and AEC-Q101 traceability.
Supply support for 1.5SMC100CAHE3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The 1.5SMC Series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term stability under thermal stress are mandatory.
FAQ
What does the "CA" suffix indicate in 1.5SMC100CAHE3/9AT?
The "CA" suffix denotes a bidirectional configuration - meaning the 1.5SMC100CAHE3/9AT provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity applied. This eliminates the need for orientation-specific placement during SMT assembly and simplifies design for AC-coupled or floating signal paths.
Is 1.5SMC100CAHE3/9AT RoHS-compliant and halogen-free?
Yes, the 1.5SMC100CAHE3/9AT carries the "HE3" suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. It is not halogen-free - for halogen-free and RoHS-compliant versions, the "HM3" suffix (e.g., 1.5SMC100CAHM3/9AT) must be selected per Vishay's ordering matrix.
What is the maximum clamping voltage of 1.5SMC100CAHE3/9AT and under what test condition?
The maximum clamping voltage (VC) of the 1.5SMC100CAHE3/9AT is 137 V, measured at a peak pulse current (IPPM) of 10.9 A using the standardized 10/1000 µs double-exponential waveform. This value represents the highest voltage imposed on the protected circuit during worst-case surge conditions.
Can 1.5SMC100CAHE3/9AT replace unidirectional 1.5SMC100AHE3/9AT in existing designs?
No - the 1.5SMC100CAHE3/9AT is bidirectional and lacks polarity marking, whereas the unidirectional 1.5SMC100AHE3/9AT requires correct cathode orientation. Substituting them without verifying circuit topology (e.g., grounding scheme, presence of DC bias) may result in improper clamping or failure to protect during negative transients.
What is the thermal resistance junction-to-ambient (RθJA) for 1.5SMC100CAHE3/9AT?
The typical thermal resistance junction-to-ambient (RθJA) for the 1.5SMC100CAHE3/9AT is 75 °C/W when mounted on the minimum recommended copper pad layout (0.31" × 0.31" per terminal). This value assumes natural convection cooling and is critical for calculating junction temperature rise under sustained power dissipation.
1.5SMC100CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, 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):
- 10.9A
- 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)
1.5SMC100CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC100CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC100CAHE3/9AT 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 1.5SMC100CAHE3/9AT reliable?
The price and inventory of 1.5SMC100CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC100CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC100CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC100CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC100CAHE3/9AT?
1.5SMC100CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC100CAHE3/9AT 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 1.5SMC100CAHE3/9AT?
For technical support, including 1.5SMC100CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC100CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC100CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC100CAHE3/9AT 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 1.5SMC100CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC100CAHE3/9AT?
All 1.5SMC100CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC100CAHE3/9AT, 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 1.5SMC100CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC100CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC100CAHE3/9AT Tags
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