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Vishay General Semiconductor - Diodes Division SMCJ6.5CAHE3/57T
- Part No.:
- SMCJ6.5CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5CAHE3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,986
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Product details
Overview
SMCJ6.5CAHE3/57T 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 6.5 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), and clamps transients to ≤11.2 V at 133.9 A (10/1000 μs waveform), making it suitable for automotive sensor signal line protection per AEC-Q101.
For engineers reviewing the SMCJ6.5CAHE3/57T datasheet, SMCJ6.5CAHE3/57T pinout, SMCJ6.5CAHE3/57T application, or SMCJ6.5CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, low clamping voltage (VC ≤ 11.2 V), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
The SMCJ6.5CAHE3/57T operates as a bidirectional avalanche diode, providing symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<500 μA at VWM = 6.5 V), while its low incremental surge resistance enables fast response to ESD and lightning-induced transients.
Thermally, it supports operation from −55 °C to +150 °C with RθJA = 75 °C/W and RθJL = 15 °C/W, and is rated for 200 A non-repetitive forward surge (IFSM) - though this applies only to unidirectional variants; the CA suffix confirms bidirectional symmetry and absence of cathode/anode distinction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse stand-off voltage before clamping begins |
| VBR min/max | 7.22 V / 7.98 V at IT = 10 mA - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | ≤11.2 V at 133.9 A (10/1000 μs) - peak clamped voltage limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient energy absorption capacity under standardized surge waveform |
| ID @ VWM | ≤500 μA - low leakage current preserving signal integrity in high-impedance circuits |
| TJ max | +150 °C - extended junction temperature rating enabling use in under-hood automotive environments |
| Package | SMC (DO-214AB) - surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ6.5CAHE3/57T uses the SMC (DO-214AB) package: a 2-terminal, bidirectional surface-mount device with no polarity marking. The case is molded in UL 94 V-0 compliant compound; terminals are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction - either terminal serves as anode or cathode depending on transient polarity |
| Case (body) | Thermal path & mechanical anchor | Requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated PPPM performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and surge endurance |
| Glass passivated junction | Enhanced stability of VBR over time and temperature vs. epoxy-passivated alternatives |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during surge events, reducing risk of IC latch-up or damage |
| 1500 W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt surge energy before reaching signal conditioning circuitry. Use Value: Enables compliance with AEC-Q100 Grade 0 requirements by limiting transient voltage to <11.2 V while sustaining 133.9 A surges. | Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage clamp across input terminals, operating in parallel with optocoupler input stages. Use Value: Prevents false triggering and component degradation by clamping transients within 1 ns, with leakage <500 μA preserving input threshold accuracy. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Secondary-side surge suppression on Ethernet PHY power rails and data lines in PoE-powered network switches. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to RJ45 magnetics and DC-DC converter outputs. Use Value: Absorbs 1500 W surges per IEC 61000-4-5 without derating, maintaining <11.2 V clamping to protect 3.3 V/5 V PHY ICs. | Use Scenario: Input-stage transient protection on USB-C and barrel jack inputs of smart home hubs and audio amplifiers. IC Role / Device Role / Timing Role: First-line defense against human-body-model (HBM) ESD and AC line coupling events. Use Value: Delivers sub-11.2 V clamping at 133.9 A while meeting RoHS and halogen-free requirements via HE3 suffix. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5CA-E3/57T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (11.5 V) | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy threats | Select when board space is constrained and surge energy is ≤400 W |
| SMCJ6.5CAHM3/57T | Identical electrical specs; halogen-free construction instead of standard RoHS-compliant HE3 | Same AEC-Q101 qualification and thermal performance; differs only in material compliance | Select when halogen-free BOM compliance is required per IPC-1752A |
Compared with SMAJ6.5CA-E3/57T, SMCJ6.5CAHE3/57T delivers 275 % higher surge power handling and lower clamping voltage; versus SMCJ6.5CAHM3/57T, it shares identical protection performance but uses standard RoHS-compliant materials rather than halogen-free compounds.
Availability
SMCJ6.5CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line interfaces, and consumer power adapter designs requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ6.5CAHE3/57T 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 specifically for high-power transient suppression in harsh environments, targeting AEC-Q101-compliant automotive systems and industrial equipment demanding 1500 W surge resilience in compact SMC packaging.
FAQ
What does the "CA" suffix indicate in SMCJ6.5CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration: the SMCJ6.5CAHE3/57T provides symmetrical clamping in both polarities, with no cathode band marking and identical VBR min/max (7.22 V / 7.98 V) and VC (≤11.2 V) in either direction. This makes it ideal for AC-coupled or differential signal lines where polarity reversal may occur during transients.
Is SMCJ6.5CAHE3/57T qualified for automotive applications?
Yes, SMCJ6.5CAHE3/57T is AEC-Q101 qualified, as confirmed by Vishay's documentation and the "HE3" suffix denoting RoHS-compliant and AEC-Q101–qualified construction. It meets requirements for temperature cycling, humidity, and surge endurance needed in engine control, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage of SMCJ6.5CAHE3/57T under surge conditions?
The maximum clamping voltage (VC) of SMCJ6.5CAHE3/57T is 11.2 V when subjected to its rated peak pulse current of 133.9 A using the standardized 10/1000 μs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads).
How does the SMCJ6.5CAHE3/57T differ from unidirectional SMCJ6.5AHE3/57T?
SMCJ6.5CAHE3/57T is bidirectional with symmetrical characteristics and no polarity marking, whereas SMCJ6.5AHE3/57T is unidirectional with a cathode band and specified forward voltage (VF = 3.5 V at 100 A). The CA version supports AC or floating signal protection; the A version is used in DC-biased circuits where polarity is fixed.
What PCB layout guidance applies to SMCJ6.5CAHE3/57T for full 1500 W rating?
To achieve the full 1500 W peak pulse power rating, SMCJ6.5CAHE3/57T must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Vishay's datasheet. Reduced pad area or insufficient copper pour will thermally derate PPPM and increase clamping voltage beyond 11.2 V during surge events.
SMCJ6.5CAHE3/57T 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 133.9A
- 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)
SMCJ6.5CAHE3/57T FAQ
1.How can I place an order for SMCJ6.5CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5CAHE3/57T 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 SMCJ6.5CAHE3/57T reliable?
The price and inventory of SMCJ6.5CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.5CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ6.5CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5CAHE3/57T?
SMCJ6.5CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5CAHE3/57T 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 SMCJ6.5CAHE3/57T?
For technical support, including SMCJ6.5CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ6.5CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5CAHE3/57T 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 SMCJ6.5CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ6.5CAHE3/57T?
All SMCJ6.5CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5CAHE3/57T, 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 SMCJ6.5CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ6.5CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.5CAHE3/57T Tags
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