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Vishay General Semiconductor - Diodes Division SMCJ5.0CAHM3_A/H
- Part No.:
- SMCJ5.0CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CAHM3_A/H.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,523
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Product details
Overview
SMCJ5.0CAHM3_A/H 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 5.0 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), clamping voltage of 9.2 V at 163 A IPPM, and operates across -55 °C to +150 °C junction temperature range - ideal for automotive sensor signal line protection.
For engineers reviewing the SMCJ5.0CAHM3_A/H datasheet, SMCJ5.0CAHM3_A/H pinout, SMCJ5.0CAHM3_A/H application, or SMCJ5.0CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, halogen-free RoHS compliance, and compatibility with 10/1000 µs surge waveforms per IEC 61000-4-5.
Technical Context
The SMCJ5.0CAHM3_A/H implements a glass-passivated silicon avalanche junction optimized for fast response (<1 ns) to transient overvoltages. Its bidirectional architecture enables symmetrical clamping in both polarities without external polarity management, supporting protection of AC-coupled or differential signal paths.
It meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak, and its thermal resistance (RθJA = 75 °C/W, RθJL = 15 °C/W) supports reliable operation under repetitive surge conditions when mounted on 8.0 mm × 8.0 mm copper pads per datasheet layout guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 6.40 V / 7.07 V at 10 mA - guaranteed breakdown voltage window defining turn-on threshold |
| VC @ IPPM | 9.2 V at 163 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient power handling capacity under standardized surge waveform |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMC (DO-214AB) - surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
| Compliance | AEC-Q101 qualified, halogen-free, RoHS-compliant - suitable for automotive production |
Pinout & Package
SMCJ5.0CAHM3_A/H uses the SMC (DO-214AB) package: a two-terminal surface-mount device with no polarity marking for bidirectional operation. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical avalanche junction; conducts during positive transients |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; conducts during negative transients; unmarked on bidirectional units |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC or floating signal lines without polarity concerns |
| 1500 W peak pulse power | Withstands high-energy surges such as ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 |
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment interfaces |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to protected ICs |
| Halogen-free & RoHS-compliant | Meets automotive environmental requirements and end-of-life recycling mandates |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine bay modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed at sensor PCB input to shunt ESD and surge energy before it reaches ADC front-end or signal conditioner IC. Use Value: Clamps transients to ≤9.2 V while maintaining 5.0 V nominal signal integrity, ensuring sensor accuracy and preventing microcontroller reset events. | Use Scenario: Safeguarding CANH/CANL differential pair against EFT, ESD, and surge in industrial PLC fieldbus nodes. IC Role / Device Role / Timing Role: Two SMCJ5.0CAHM3_A/H devices used in back-to-back configuration across CANH–CANL and each line-to-ground. Use Value: Provides symmetrical ±9.2 V clamping with <1 ns response, preserving CAN signal rise/fall times and meeting ISO 11898-2 immunity requirements. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side DC input protection in USB-C PD adapters and AC/DC wall adapters subject to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VBUS and GND after primary regulation, upstream of buck controller and USB interface IC. Use Value: Absorbs 1500 W surges without degradation, maintaining 5.0 V system rail stability and eliminating need for additional series impedance. | Use Scenario: Overvoltage protection on Ethernet PHY power rails (3.3 V, 5 V) and data lines in telecom access equipment deployed in outdoor cabinets. IC Role / Device Role / Timing Role: TVS device applied to low-voltage bias rails feeding Gigabit Ethernet magnetics and PHY ICs. Use Value: Withstands repeated 10/1000 µs surges up to 163 A while exhibiting only 0.057 %/°C VBR drift, ensuring long-term reliability in temperature-variable environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0CAHE3_A/H | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Restricted to lower-energy transients; not recommended for automotive load dump | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only |
| SMCJ5.0AHE3_A/H | Unidirectional version; cathode band marked; identical VWM, PPPM, and package | Requires polarity-aware placement; unsuitable for AC or floating signals | Choose only for DC-biased lines where reverse conduction must be blocked |
Compared with SMAJ5.0CAHE3_A/H and SMCJ5.0AHE3_A/H, the SMCJ5.0CAHM3_A/H uniquely combines bidirectional operation, 1500 W surge rating, AEC-Q101 qualification, and halogen-free construction - making it the only option among the three validated for harsh automotive environments requiring zero-polarity dependency.
Availability
SMCJ5.0CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN bus nodes, consumer power adapter designs, and telecom line card protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCJ5.0CAHM3_A/H 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, automotive qualification, and high-power handling.
The SMCJ series targets high-energy transient suppression in automotive, industrial, and telecom systems - engineered specifically to meet ISO 7637, IEC 61000-4-5, and AEC-Q101 requirements with minimal footprint and thermal derating.
FAQ
What does the "CA" suffix indicate in SMCJ5.0CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration, meaning the SMCJ5.0CAHM3_A/H provides symmetrical clamping for both positive and negative voltage transients without polarity dependence. This differs from unidirectional variants (e.g., SMCJ5.0A) that require correct anode/cathode orientation and only clamp in one direction.
Is SMCJ5.0CAHM3_A/H qualified for automotive applications?
Yes, SMCJ5.0CAHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure (HM3 suffix) and documentation note referencing AEC-Q101 compliance. It is rated for operation from -55 °C to +150 °C and meets MSL Level 1, making it suitable for under-hood and body-control module deployments.
What is the clamping voltage of SMCJ5.0CAHM3_A/H at its rated surge current?
The SMCJ5.0CAHM3_A/H has a maximum clamping voltage (VC) of 9.2 V at 163 A peak pulse current (IPPM), measured under the standard 10/1000 µs double-exponential surge waveform. This value ensures protected circuitry remains below critical overvoltage thresholds during transient events.
How does the HM3 suffix differ from E3 or M3 in SMCJ5.0CAHM3_A/H?
The HM3 suffix indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, whereas E3 is RoHS-compliant commercial grade and M3 is halogen-free RoHS-compliant commercial grade. Only HE3 and HM3 variants carry AEC-Q101 qualification, confirmed in Vishay's ordering information table and mechanical data section.
Can SMCJ5.0CAHM3_A/H replace SMCJ5.0AHE3_A/H in a design?
No - SMCJ5.0CAHM3_A/H is bidirectional while SMCJ5.0AHE3_A/H is unidirectional, so direct replacement requires verification of signal polarity and circuit topology. The SMCJ5.0CAHM3_A/H lacks cathode marking and conducts in both directions, which may cause unintended conduction in DC-biased circuits originally designed for unidirectional suppression.
SMCJ5.0CAHM3_A/H 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ5.0CAHM3_A/H FAQ
1.How can I place an order for SMCJ5.0CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CAHM3_A/H 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 SMCJ5.0CAHM3_A/H reliable?
The price and inventory of SMCJ5.0CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CAHM3_A/H?
SMCJ5.0CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CAHM3_A/H 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 SMCJ5.0CAHM3_A/H?
For technical support, including SMCJ5.0CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CAHM3_A/H requirements.
6.How does Aetrix verify that SMCJ5.0CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CAHM3_A/H 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 SMCJ5.0CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CAHM3_A/H?
All SMCJ5.0CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CAHM3_A/H, 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 SMCJ5.0CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ5.0CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CAHM3_A/H Tags
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