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Vishay General Semiconductor - Diodes Division SMCJ5.0CAHE3_A/I
- Part No.:
- SMCJ5.0CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CAHE3_A/I.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,414
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Product details
Overview
SMCJ5.0CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 5.0 V stand-off voltage (VWM), 1500 W peak pulse power rating (10/1000 µs), clamping voltage of 9.2 V at 163 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ5.0CAHE3_A/I datasheet, SMCJ5.0CAHE3_A/I pinout, SMCJ5.0CAHE3_A/I application, or SMCJ5.0CAHE3_A/I equivalent, key selection criteria include bidirectional clamping behavior, low clamping ratio (VC/VWM = 1.84), MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin terminations suitable for lead-free reflow.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ leakage at 5.0 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown range (6.40–7.07 V at 10 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
The device is rated for unidirectional/bidirectional operation per ANSI/IEEE C62.35, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W. It supports surge currents up to 163 A (10/1000 µs) while maintaining clamping below 9.2 V - critical for safeguarding 5 V logic interfaces and automotive sensor supply lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - guaranteed avalanche initiation window for reliable triggering |
| VC @ IPPM | 9.2 V at 163 A - clamping voltage during full-rated 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 µs waveform |
| ID @ VWM | 1000 µA - maximum reverse leakage at stand-off voltage, ensuring minimal quiescent load |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - surface-mount package with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ5.0CAHE3_A/I uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount outline with cathode/anode symmetry for bidirectional operation. No polarity marking is applied per specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - no fixed polarity |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically symmetric to Terminal 1; forms a back-to-back diode structure for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| MSL Level 1 | Unlimited floor life at ≤30 °C/85 % RH - no baking required prior to reflow |
| Glass passivated junction | Stable avalanche characteristics over lifetime and temperature, with low parameter drift |
| Low clamping ratio (VC/VWM) | 1.84 - tight voltage margin between stand-off and clamping, minimizing protected circuit overvoltage |
| Matte tin terminations | Solderable per J-STD-002 and JESD 22-B102, compatible with Pb-free reflow profiles |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V supply lines in engine control units (ECUs) and body control modules (BCMs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly across power input pins of microcontrollers and CAN transceivers. Use Value: Clamps transients to ≤9.2 V within nanoseconds, preventing latch-up or permanent damage to 5 V tolerant ICs while meeting ISO 7637-2 Pulse 1/2a/5a requirements. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) and digital I/O of industrial pressure/temperature sensors exposed to ESD and field wiring surges. IC Role / Device Role / Timing Role: Bidirectional clamp on signal lines referenced to local ground, absorbing both positive and negative polarity transients. Use Value: Enables robust operation in harsh factory environments by suppressing ±15 kV contact ESD (IEC 61000-4-2) and 1 kV ring wave surges (IEC 61000-4-12) without signal distortion. |
| Consumer USB Port Protection | Telecom DC Power Input Protection |
Use Scenario: Guarding VBUS and D+/D− lines in USB 2.0 host ports against ESD events and hot-plug induced transients. IC Role / Device Role / Timing Role: Low-capacitance TVS array component integrated near USB connector, leveraging bidirectional symmetry for data line protection. Use Value: Maintains signal integrity with <10 pF junction capacitance (typ.) while delivering 15 kV air/8 kV contact ESD immunity per IEC 61000-4-2. | Use Scenario: Protecting primary 5 V or 12 V DC inputs of telecom base station power supplies and remote radio units from lightning-induced surges. IC Role / Device Role / Timing Role: First-stage shunt protector mounted at board edge, diverting bulk surge energy before upstream regulators and PMICs. Use Value: Handles 1500 W peak pulses (10/1000 µs) with thermal design support via 8.0 mm × 8.0 mm copper pads, reducing need for external heat sinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0AHE3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for lower-energy transients and space-constrained PCBs; not recommended for automotive load dump | Select when board space is limited and surge threat level is ≤400 W |
| SMCJ5.0CAHM3_A/I | Halogen-free construction, identical electrical specs and AEC-Q101 qualification | Same performance and automotive suitability; preferred where halogen-free compliance is mandated | Choose for RoHS + halogen-free regulatory alignment without performance trade-off |
Compared with SMCJ5.0CAHE3_A/I, SMAJ5.0AHE3_A/I offers reduced surge capacity and thermal performance in a smaller footprint, while SMCJ5.0CAHM3_A/I delivers identical protection with halogen-free materials - making the latter a drop-in material-compliance upgrade rather than a functional alternative.
Availability
SMCJ5.0CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, AEC-Q101 qualification, and 1500 W transient immunity.
Supply support for SMCJ5.0CAHE3_A/I 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, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in demanding environments - particularly automotive, industrial, and telecom applications where robustness against ISO 7637-2 and IEC 61000-4-x threats is mandatory.
FAQ
What does the "CA" suffix indicate in SMCJ5.0CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration: SMCJ5.0CAHE3_A/I contains two avalanche diodes connected in series opposing polarity, enabling symmetrical clamping for both positive and negative transients. This differs from unidirectional "A" variants (e.g., SMCJ5.0AHE3_A/I), which protect only one polarity and require correct orientation during placement. The CA version has no polarity marking.
Is SMCJ5.0CAHE3_A/I suitable for automotive applications?
Yes, SMCJ5.0CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use per Vishay's ordering code system ("HE3" suffix). It meets requirements for temperature cycling, mechanical shock, and humidity bias testing, and is rated for operation from –55 °C to +150 °C - making it appropriate for under-hood and cabin ECUs, ADAS sensors, and infotainment power rails.
What is the maximum clamping voltage of SMCJ5.0CAHE3_A/I and how is it measured?
The maximum clamping voltage (VC) of SMCJ5.0CAHE3_A/I is 9.2 V, measured at the peak pulse current (IPPM) of 163 A using a standardized 10/1000 µs double-exponential transient waveform. This value is guaranteed across temperature and production lot, and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
How does the SMC (DO-214AB) package of SMCJ5.0CAHE3_A/I affect thermal performance?
The SMC (DO-214AB) package requires mounting on minimum 8.0 mm × 8.0 mm copper pads per terminal to achieve specified thermal resistance (RθJA = 75 °C/W). Without this layout, junction temperature rise during 1500 W surges exceeds safe limits. The package's low-profile design supports automated placement but demands strict adherence to Vishay's recommended pad geometry for reliable power dissipation.
Does SMCJ5.0CAHE3_A/I have any special handling or moisture sensitivity requirements?
SMCJ5.0CAHE3_A/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/85 % RH and requires no baking prior to reflow soldering. Its matte tin terminations comply with J-STD-002 for solderability, and the device passes JESD 22-B102 whisker testing - supporting robust manufacturing yield in high-volume lead-free assembly processes.
SMCJ5.0CAHE3_A/I 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- 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)
SMCJ5.0CAHE3_A/I FAQ
1.How can I place an order for SMCJ5.0CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CAHE3_A/I 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 SMCJ5.0CAHE3_A/I reliable?
The price and inventory of SMCJ5.0CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CAHE3_A/I?
SMCJ5.0CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CAHE3_A/I 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 SMCJ5.0CAHE3_A/I?
For technical support, including SMCJ5.0CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ5.0CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CAHE3_A/I 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 SMCJ5.0CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CAHE3_A/I?
All SMCJ5.0CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CAHE3_A/I, 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 SMCJ5.0CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ5.0CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CAHE3_A/I Tags
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Diodes Incorporated
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