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Vishay General Semiconductor - Diodes Division SMCJ6.5CHE3/57T
- Part No.:
- SMCJ6.5CHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5CHE3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,276
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Product details
Overview
SMCJ6.5CHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), 133.9 A peak pulse current (IPPM), and clamps to ≤11.2 V at rated surge. It is AEC-Q101 qualified and used in automotive power line and sensor interface protection.
For engineers reviewing the SMCJ6.5CHE3/57T datasheet, SMCJ6.5CHE3/57T pinout, SMCJ6.5CHE3/57T application, or SMCJ6.5CHE3/57T equivalent, key selection criteria include unidirectional polarity, 1500 W surge rating, 11.2 V clamping voltage at IPPM, AEC-Q101 qualification, and DO-214AB thermal performance with RθJA = 75 °C/W.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1000 µA leakage at 6.5 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR and low incremental surge resistance.
The device is optimized for 10/1000 µs waveform transients per ANSI/IEEE C62.35, with thermal derating above 25 °C per Fig. 2 and validated performance on 8.0 mm × 8.0 mm copper pads. It meets J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker resistance (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - guaranteed breakdown range defining turn-on consistency |
| VC @ IPPM | ≤11.2 V at 133.9 A - clamping voltage during full-rated 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak surge power handling capability with 10/1000 µs waveform |
| ID @ VWM | ≤500 µA - reverse leakage current at stand-off, critical for low-power sensor line integrity |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on standard pad layout, guiding heatsinking needs |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lower-potential rail during clamping |
| Cathode (banded end) | High-side surge input terminal | Receives transient energy; clamps voltage relative to anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive powertrain and body electronics per stress test requirements |
| Glass passivated junction | Stable VBR tolerance and long-term leakage performance across temperature and life cycles |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH, compatible with standard SMT reflow without baking |
| 1500 W surge capability | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 4 transients in 12 V systems |
| J-STD-002/JESD 22-B102 solderability | Ensures reliable interconnect formation on PCBs using lead-free or SnPb processes |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Shunt TVS placed between power rail and ground to clamp transients before they reach downstream regulators and microcontrollers. Use Value: Limits peak voltage to ≤11.2 V during 1500 W surges, preventing damage to 16 V-rated DC/DC converters and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC inputs. IC Role / Device Role / Timing Role: Bidirectional-capable protection on signal lines exposed to ESD and field wiring transients. Use Value: Sub-1 µs response time and <500 µA leakage preserve signal fidelity while suppressing ±15 kV ESD per IEC 61000-4-2. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS installed on positive rail to ground, leveraging high VBR consistency for predictable clamping. Use Value: 7.22–7.98 V VBR range ensures tight coordination with upstream crowbar circuits and downstream LDOs. | Use Scenario: Shielding MCU GPIOs and gate drivers in washing machine motor inverters from commutation noise. IC Role / Device Role / Timing Role: Localized TVS at motor driver IC supply pins to absorb fast dv/dt spikes from MOSFET switching. Use Value: 11.2 V clamping voltage prevents latch-up in 5 V logic interfaces while surviving repeated 100 A surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5A-E3/61 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (~125 °C/W) | Suitable for space-constrained consumer boards with lower surge exposure | Select when board area is limited and peak transients do not exceed 400 W |
| SMCJ6.5AHE3/57T | Identical electrical specs and DO-214AB package; differs only in marking code (BDK vs. GDK) and packaging tape/reel configuration | No functional difference; same AEC-Q101 qualification and thermal performance | Direct form-fit-function replacement; verify reel size (57T = 7″ reel, 850 pcs) matches production line setup |
Compared with SMAJ6.5A-E3/61, SMCJ6.5CHE3/57T delivers 3.75× higher surge power and superior thermal dissipation; versus SMCJ6.5AHE3/57T, it shares identical protection characteristics but reflects Vishay's HE3-grade qualification traceability for automotive use cases.
Availability
SMCJ6.5CHE3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface hardening, and telecom DC feed safeguarding requiring stable component supply across extended production lifecycles.
Supply support for SMCJ6.5CHE3/57T 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 and automotive-grade validation.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the SMCJ6.5CHE3/57T at its rated peak pulse current?
The SMCJ6.5CHE3/57T clamps to a maximum of 11.2 V at its rated peak pulse current (IPPM) of 133.9 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and verified on standard 8.0 mm × 8.0 mm copper pads. The clamping voltage directly determines the maximum stress imposed on downstream components during surge events, making it a critical parameter for system-level protection design using the SMCJ6.5CHE3/57T.
Is the SMCJ6.5CHE3/57T suitable for automotive applications?
Yes, the SMCJ6.5CHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use. Its HE3 suffix denotes compliance with AEC-Q101 stress testing, including temperature cycling, humidity bias, and mechanical shock. It is deployed in engine control units, body control modules, and ADAS sensor interfaces where sustained operation up to +150 °C junction temperature and immunity to load dump transients are required - confirming its suitability as a robust protection element in automotive systems using the SMCJ6.5CHE3/57T.
What does the "HE3" suffix indicate in SMCJ6.5CHE3/57T?
The "HE3" suffix in SMCJ6.5CHE3/57T signifies RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike the commercial "E3" variant, HE3 devices undergo additional automotive-grade reliability screening and are marked with "BDK" per Vishay's ordering matrix. This suffix ensures traceability to qualified lots and confirms suitability for mission-critical automotive applications where long-term stability and solder joint integrity are mandatory for the SMCJ6.5CHE3/57T.
How does the SMCJ6.5CHE3/57T differ from the bi-directional SMCJ6.5CA variant?
The SMCJ6.5CHE3/57T is unidirectional, with polarity marked by a cathode band and intended for DC rail-to-ground protection. In contrast, SMCJ6.5CA is bi-directional, has no polarity marking, and protects AC or dual-rail signals. Electrically, SMCJ6.5CHE3/57T specifies VWM = 6.5 V and VBR = 7.22–7.98 V, while SMCJ6.5CA has identical VWM/VBR but conducts in both directions - making them functionally non-interchangeable without circuit redesign for the SMCJ6.5CHE3/57T.
What is the thermal resistance of the SMCJ6.5CHE3/57T, and how does it affect layout?
The SMCJ6.5CHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended 8.0 mm × 8.0 mm copper pads per terminal. This value assumes no external heatsinking and defines the maximum allowable power dissipation before exceeding TJ(max) = +150 °C. To maintain reliability, PCB layout must allocate sufficient copper area and avoid thermal bottlenecks - underscoring why proper thermal design is essential when deploying the SMCJ6.5CHE3/57T in high-ambient environments.
SMCJ6.5CHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 122A
- 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)
SMCJ6.5CHE3/57T FAQ
1.How can I place an order for SMCJ6.5CHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5CHE3/57T 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 SMCJ6.5CHE3/57T reliable?
The price and inventory of SMCJ6.5CHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.5CHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ6.5CHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5CHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5CHE3/57T?
SMCJ6.5CHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5CHE3/57T 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 SMCJ6.5CHE3/57T?
For technical support, including SMCJ6.5CHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5CHE3/57T requirements.
6.How does Aetrix verify that SMCJ6.5CHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5CHE3/57T 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 SMCJ6.5CHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ6.5CHE3/57T?
All SMCJ6.5CHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5CHE3/57T, 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 SMCJ6.5CHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ6.5CHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.5CHE3/57T Tags
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