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Vishay General Semiconductor - Diodes Division SMCJ100CAHE3/9AT
- Part No.:
- SMCJ100CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100CAHE3/9AT.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,187
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Product details
Overview
SMCJ100CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 100 V standoff voltage (VWM), 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with 10/1000 μs waveform - deployed in automotive sensor signal lines, industrial I/O ports, and telecom interface protection.
For engineers reviewing the SMCJ100CAHE3/9AT datasheet, SMCJ100CAHE3/9AT pinout, SMCJ100CAHE3/9AT application, or SMCJ100CAHE3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 1500 W surge capability, low thermal resistance (RθJL = 15 °C/W), and RoHS-compliant matte tin terminations suitable for J-STD-002 soldering.
Technical Context
The SMCJ100CAHE3/9AT operates as a silicon avalanche diode with symmetrical breakdown in both directions, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR (111–123 V) and low incremental surge resistance, critical for fast transient suppression (response time < 1 ns).
Thermally, it supports operation from –55 °C to +150 °C junction temperature, with derating above 25 °C per Fig. 2. The device meets MSL Level 1 (260 °C peak reflow) and is qualified to AEC-Q101 for automotive under-hood and chassis applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin. |
| VBR min/max | 111 V / 123 V at 1 mA - Guaranteed symmetric breakdown threshold in both directions; ensures predictable turn-on. |
| VC @ IPPM | 162 V at 9.3 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum stress level. |
| PPPM | 1500 W - Peak transient energy handling capacity; enables survival of ISO 7637-2 Pulse 5a/b surges. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive deployment with thermal design margin. |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance; allows efficient heat transfer to PCB copper pads. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. No polarity marking - bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | One terminal of symmetrical avalanche junction; accepts surge current regardless of polarity. |
| Cathode | Transient current exit (either direction) | Second terminal of symmetrical junction; completes bidirectional conduction path during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for safety-critical ECUs. |
| Glass passivated junction | Stable VBR tolerance and long-term leakage performance under humidity and thermal stress - improves field lifetime. |
| 1500 W peak pulse power | Withstands high-energy transients like load dump (ISO 16750-2) and inductive switching spikes without degradation. |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak - eliminates moisture sensitivity handling requirements. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ESD and load-dump-induced transients in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across differential signal pair or supply rail to shunt surge energy before IC input stages. Use Value: Maintains signal integrity by limiting clamped voltage to 162 V while surviving repeated 1500 W pulses - prevents latch-up or gate oxide damage in automotive-grade transceivers. | Use Scenario: Safeguarding PLC digital input channels and RS-485 transceiver interfaces against lightning-induced surges and relay contact bounce in factory automation systems. IC Role / Device Role / Timing Role: Primary front-end surge suppressor on field-side traces, mounted directly at connector entry point. Use Value: Fast sub-nanosecond response and symmetrical clamping ensure no polarity-dependent failure mode - critical for AC-coupled or floating industrial buses. |
| Telecom Interface Protection | Power Supply Rail Clamp |
Use Scenario: Shielding Ethernet PHY magnetics and PoE injector circuits from induced surges on outdoor telecom line cards and base station backhaul interfaces. IC Role / Device Role / Timing Role: Secondary-level TVS across transformer secondary windings or DC bias rails feeding PHY ICs. Use Value: 100 V VWM aligns with common 48 V PoE systems; 162 V VC ensures downstream regulator and PHY ICs remain within absolute maximum ratings during surge events. | Use Scenario: Clamping 12 V or 24 V DC power rails feeding microcontrollers and sensors in harsh-environment embedded controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to absorb inductive kickback from solenoid drivers or motor controllers. Use Value: 1500 W PPPM handles high-current transients (e.g., 9.3 A IPPM) without thermal runaway - avoids fuse blowing or upstream regulator shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC100CA | Lower PPPM (600 W), same VWM (100 V), smaller SMA package (DO-214AC) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a/b or load dump. | Select when board space is constrained and surge energy is ≤600 W. |
| SMCJ100AHE3/9AT | Unidirectional version; cathode band marking; VF = 3.5 V at 100 A forward surge | Requires polarity-aware layout; not usable on AC or floating signals without external rectification. | Choose only for DC rail protection where unidirectional clamping suffices and polarity is fixed. |
Compared with SAC100CA and SMCJ100AHE3/9AT, the SMCJ100CAHE3/9AT uniquely delivers 1500 W bidirectional clamping in an AEC-Q101-qualified SMC package - making it the only option among the three for automotive-grade, polarity-agnostic, high-energy surge protection.
Availability
SMCJ100CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCJ100CAHE3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, robust surge handling, and seamless SMT integration.
FAQ
What is the clamping voltage of SMCJ100CAHE3/9AT at its rated peak pulse current?
The SMCJ100CAHE3/9AT has a maximum clamping voltage (VC) of 162 V when subjected to its rated 10/1000 μs peak pulse current of 9.3 A. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SMCJ100CAHE3/9AT qualified for automotive applications?
Yes, the SMCJ100CAHE3/9AT is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88394. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What does the "CA" suffix indicate in SMCJ100CAHE3/9AT?
The "CA" suffix in SMCJ100CAHE3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., SMCJ100A), it has no cathode band marking and functions identically whether voltage is applied anode-to-cathode or cathode-to-anode - essential for protecting AC-coupled, differential, or floating signal paths.
What is the thermal resistance from junction to lead (RθJL) for SMCJ100CAHE3/9AT?
The SMCJ100CAHE3/9AT has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W, as specified in the Thermal Characteristics table of Vishay's datasheet 88394. This low value enables efficient heat transfer from the silicon die to the PCB copper pads via the leads - supporting reliable operation at elevated ambient temperatures and reducing risk of thermal runaway during repetitive surge events.
How does the SMCJ100CAHE3/9AT differ from the SMCJ100AHE3/9AT variant?
The SMCJ100CAHE3/9AT is bidirectional with symmetrical clamping, while the SMCJ100AHE3/9AT is unidirectional and features a cathode band marking. The unidirectional version exhibits forward voltage drop (VF = 3.5 V at 100 A) during positive surge events but blocks reverse current - making it unsuitable for AC or polarity-agnostic protection. The CA variant is required for applications like differential bus lines or floating supplies where polarity cannot be guaranteed.
SMCJ100CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ100CAHE3/9AT FAQ
1.How can I place an order for SMCJ100CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100CAHE3/9AT 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 SMCJ100CAHE3/9AT reliable?
The price and inventory of SMCJ100CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ100CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100CAHE3/9AT?
SMCJ100CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100CAHE3/9AT 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 SMCJ100CAHE3/9AT?
For technical support, including SMCJ100CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100CAHE3/9AT requirements.
6.How does Aetrix verify that SMCJ100CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ100CAHE3/9AT 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 SMCJ100CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ100CAHE3/9AT?
All SMCJ100CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100CAHE3/9AT, 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 SMCJ100CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ100CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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