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Vishay General Semiconductor - Diodes Division SMCJ100CA-E3/9AT
- Part No.:
- SMCJ100CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100CA-E3/9AT.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,549
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Product details
Overview
SMCJ100CA-E3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 100 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), 162 V maximum clamping voltage (VC) at 9.3 A IPPM, and operates from −55 °C to +150 °C. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMCJ100CA-E3/9AT datasheet, SMCJ100CA-E3/9AT pinout, SMCJ100CA-E3/9AT application, or SMCJ100CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating with 10/1000 μs waveform, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ100CA-E3/9AT uses a glass-passivated silicon junction optimized for fast transient response (<1 ps) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in both polarities without polarity marking, making it suitable for AC-coupled or floating signal paths.
It meets AEC-Q101 qualification when ordered with HE3/HM3 suffixes, though the -E3/9AT variant is commercial-grade. Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, with derating above TA = 25 °C per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V–48 V DC bus protection. |
| VBR min/max | 111 V / 123 V at IT = 1 mA - Breakdown voltage range ensures reliable triggering across process variation and temperature. |
| VC @ IPPM | 162 V at 9.3 A - Clamping voltage under 10/1000 μs surge; limits downstream device stress during ESD or load-switching events. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports high-energy transients per IEC 61000-4-5 Level 4. |
| ID @ VWM | 1.0 μA - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss in battery-powered systems. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial motor drive environments. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with IPC-7351B. |
Pinout & Package
SMCJ100CA-E3/9AT is housed in an SMC (DO-214AB) package: a 2-terminal, non-polarized, bidirectional TVS diode with no cathode/anode marking. The device has no functional pinout distinction-both terminals are electrically symmetric and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | AC-coupled transient path | Either terminal connects to protected line; bidirectional symmetry eliminates orientation constraints during PCB placement. |
| Terminal 2 | AC-coupled transient path | Paired with Terminal 1 to form clamping loop across differential or single-ended signal/power rails. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., RS-485), and floating grounds without polarity concerns. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit) with proper PCB layout. |
| MSL Level 1 rating | Allows unlimited floor life and reflow soldering at peak temperature ≤260 °C without baking or special handling. |
| Glass-passivated junction | Provides stable breakdown characteristics over time and temperature, with low leakage drift and high reliability. |
| RoHS-compliant matte tin leads | Ensures solderability per J-STD-002/JESD 22-B102 and whisker resistance per JESD 201 Class 2. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
|
Use Scenario: Protecting 12 V/24 V power rails in body control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between power rail and chassis ground to limit voltage excursions to <162 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) bidirectional shunt element across signal and return lines. Use Value: Maintains signal integrity while clamping transients to <162 V without distorting low-bandwidth sensor output. |
| Telecom DC Power Feeds | Consumer USB Power Delivery |
|
Use Scenario: Safeguarding −48 V telecom rectifier outputs and PSE ports against lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC-DC converters and hot-swap controllers. Use Value: Absorbs up to 1500 W of transient energy without degradation, enabling compliance with GR-1089-CORE Section 4.5.2.2. |
Use Scenario: Adding secondary-level surge immunity to USB-C PD input circuits in portable monitors and docking stations. IC Role / Device Role / Timing Role: Standoff-rated (100 V) clamp that activates only during overvoltage faults-not during normal 20 V PD operation. Use Value: Provides fail-safe protection without interfering with USB PD negotiation or 100 W power transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA-E3/52T | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM and VC. | Suitable for space-constrained consumer electronics but not for industrial surge requirements. | Select when board area is critical and surge energy is limited to IEC 61000-4-2 Level 4. |
| SMCJ100A-E3/9AT | Unidirectional version; includes cathode band marking and forward voltage drop (~3.5 V at 100 A). | Required only where polarity-sensitive DC protection is needed (e.g., single-rail power inputs). | Choose only if circuit topology mandates unidirectional clamping or requires forward conduction capability. |
Compared with SMBJ100CA-E3/52T and SMCJ100A-E3/9AT, the SMCJ100CA-E3/9AT uniquely balances 1500 W surge capacity, bidirectional symmetry, and SMC package robustness-making it optimal for high-reliability AC-coupled or dual-rail protection where layout flexibility and energy handling are prioritized.
Availability
SMCJ100CA-E3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom DC feeds, and consumer USB PD protection requiring stable component supply and full traceability.
Supply support for SMCJ100CA-E3/9AT 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, thermal performance, and automotive qualification.
The SMCJ series was developed for high-energy transient suppression in harsh environments, targeting design-in across automotive, industrial, and telecom infrastructure where robustness and standardized SMT compatibility are essential.
FAQ
What is the clamping voltage of the SMCJ100CA-E3/9AT under a 10/1000 μs surge?
The SMCJ100CA-E3/9AT clamps to a maximum of 162 V when subjected to its rated peak pulse current of 9.3 A using the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Electrical Characteristics table on page 2 of Vishay document 88394. The clamping behavior is symmetrical in both directions due to its bidirectional construction, and the SMCJ100CA-E3/9AT maintains this performance across its full operating temperature range.
Is the SMCJ100CA-E3/9AT suitable for automotive applications?
The SMCJ100CA-E3/9AT is RoHS-compliant and built on Vishay's qualified platform, but it is not AEC-Q101 certified in the -E3/9AT configuration. For automotive use, engineers must select the HE3 or HM3 variants (e.g., SMCJ100CAHE3_A/I), which carry explicit AEC-Q101 qualification. The SMCJ100CA-E3/9AT remains appropriate for non-safety-critical automotive subsystems where commercial-grade qualification suffices, such as infotainment power rails or lighting control modules.
Does the SMCJ100CA-E3/9AT have polarity markings?
No, the SMCJ100CA-E3/9AT has no polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMCJ100A-E3/9AT), which feature a cathode band, the CA-suffixed version uses a symmetric junction structure-both terminals perform identically regardless of voltage polarity. This eliminates orientation errors during automated placement and simplifies layout for AC or floating nodes, and the SMCJ100CA-E3/9AT is explicitly designated for bidirectional applications per Vishay's documentation.
What is the thermal resistance of the SMCJ100CA-E3/9AT?
The SMCJ100CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a junction-to-lead resistance (RθJL) of 15 °C/W, measured under standard conditions (TA = 25 °C, mounted on 0.31″ × 0.31″ copper pads). These values assume the recommended pad layout per Figure 5 in the datasheet. Derating is required above 25 °C ambient, and the SMCJ100CA-E3/9AT must be applied within its 150 °C maximum junction temperature limit to ensure long-term reliability.
Can the SMCJ100CA-E3/9AT replace a unidirectional TVS like SMCJ100A-E3/9AT?
The SMCJ100CA-E3/9AT can replace the SMCJ100A-E3/9AT only in circuits where bidirectional clamping is acceptable and forward conduction is unnecessary. Since the SMCJ100CA-E3/9AT lacks a defined anode/cathode, it cannot conduct steady-state forward current like the unidirectional version (which specifies VF = 3.5 V at 100 A). In DC-only applications with defined polarity, using the SMCJ100CA-E3/9AT may result in unintended conduction during fault conditions; therefore, the SMCJ100CA-E3/9AT is best reserved for AC, differential, or floating topologies.
SMCJ100CA-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ100CA-E3/9AT FAQ
1.How can I place an order for SMCJ100CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100CA-E3/9AT 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 SMCJ100CA-E3/9AT reliable?
The price and inventory of SMCJ100CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ100CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100CA-E3/9AT?
SMCJ100CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100CA-E3/9AT 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 SMCJ100CA-E3/9AT?
For technical support, including SMCJ100CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100CA-E3/9AT requirements.
6.How does Aetrix verify that SMCJ100CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ100CA-E3/9AT 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 SMCJ100CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ100CA-E3/9AT?
All SMCJ100CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100CA-E3/9AT, 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 SMCJ100CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ100CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100CA-E3/9AT Tags
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