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Vishay General Semiconductor - Diodes Division SMCJ15CHE3/57T
- Part No.:
- SMCJ15CHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ15CHE3/57T.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,096
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Product details
Overview
SMCJ15CHE3/57T 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 15 V stand-off voltage (VWM), 24.4 V clamping voltage (VC) at 61.5 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) capability with AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCJ15CHE3/57T datasheet, SMCJ15CHE3/57T pinout, SMCJ15CHE3/57T application, or SMCJ15CHE3/57T equivalent, key selection criteria include clamping performance under 10/1000 µs transients, junction temperature derating above 25 °C, unidirectional polarity marking, and RoHS-compliant matte tin plating per J-STD-002.
Technical Context
The SMCJ15CHE3/57T operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response to ESD and lightning-induced surges. Its breakdown voltage (VBR) is specified at 16.7–18.5 V with 1 mA test current, and it maintains low incremental surge resistance to minimize voltage overshoot during high-current transients.
Thermally, it exhibits 15 °C/W junction-to-lead thermal resistance and 75 °C/W junction-to-ambient (on 8.0 mm × 8.0 mm copper pads), enabling reliable operation up to 150 °C junction temperature. The device is rated for 200 A non-repetitive forward surge current (IFSM) and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 16.7 V / 18.5 V - Breakdown voltage range at 1 mA, defining turn-on threshold tolerance |
| VC @ IPPM | 24.4 V at 61.5 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - Peak transient power handling capacity, critical for automotive load-dump immunity |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage, ensuring minimal standby power loss |
| TJ max. | +150 °C - Maximum junction temperature, supporting under-hood automotive environments |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress-test requirements |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with cathode band marking for unidirectional polarity. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 mechanical robustness standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected circuit ground or low-side return path during clamping |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to line being protected; avalanche conduction occurs when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable avalanche characteristics and long-term reliability under repeated surge stress |
| Low incremental surge resistance | Minimizes dynamic voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns (260 °C peak) |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualified, whisker-tested (JESD 201 Class 2), and halogen-free construction |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges. Use Value: Limits peak voltage to 24.4 V during 61.5 A transients, preventing damage to 36 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Line-side TVS on 4–20 mA or 0–10 V signal paths exposed to motor drive noise and relay switching. Use Value: Sub-ns response and 1.0 µA leakage preserve signal integrity while absorbing ±1 kV EFT bursts per IEC 61000-4-4. |
| Telecom Power Supply Input | Consumer USB Port ESD Protection |
Use Scenario: Front-end protection of AC/DC adapter inputs in base station power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage TVS across input rectifier output to absorb 10/1000 µs line surges per IEC 61000-4-5. Use Value: 1500 W PPPM rating sustains multiple high-energy events without degradation, extending field service life. |
Use Scenario: Secondary-level protection on VBUS lines of USB 2.0 host ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, suppressing contact ESD per IEC 61000-4-2 ±15 kV air/±8 kV contact. Use Value: 24.4 V clamping ensures USB PHY ICs (typically rated to 30 V abs max) remain within safe operating limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15AHE3/57T | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR/VC specs | Not suitable for automotive load dump; limited to low-energy ESD and inductive spikes | Select when board space is constrained and surge energy is ≤400 W |
| SMCJ15A-E3/57T | Same electrical specs and DO-214AB package, but commercial-grade (non-AEC-Q101), no whisker testing | Lacks automotive qualification; acceptable for industrial/commercial power rails without automotive lifecycle requirements | Select for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMCJ15A-E3/57T and SMAJ15AHE3/57T, the SMCJ15CHE3/57T uniquely combines 1500 W surge capability, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance-making it the only choice for under-hood automotive power rail protection requiring full compliance and high-energy resilience.
Availability
SMCJ15CHE3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, and telecom power supply applications requiring stable component supply, AEC-Q101 validation, and consistent 1500 W transient immunity.
Supply support for SMCJ15CHE3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series belongs to 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 SMCJ15CHE3/57T under a 10/1000 µs surge?
The SMCJ15CHE3/57T clamps to a maximum of 24.4 V when subjected to its rated 61.5 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see controlled overvoltage stress during surge events. The SMCJ15CHE3/57T achieves this with low incremental resistance and stable avalanche behavior.
Is the SMCJ15CHE3/57T suitable for automotive applications?
Yes, the SMCJ15CHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and JESD 201 Class 2 whisker resistance meet stringent automotive reliability requirements. The SMCJ15CHE3/57T is commonly deployed in engine control units, body control modules, and ADAS power rails.
How does the HE3 suffix differ from the E3 suffix in SMCJ15CHE3/57T?
The HE3 suffix indicates AEC-Q101 qualification, JESD 201 Class 2 whisker resistance, and automotive-grade screening-whereas E3 denotes commercial-grade RoHS compliance only. The SMCJ15CHE3/57T's HE3 designation confirms full automotive process validation, making it distinct from the SMCJ15A-E3/57T, which lacks those qualifications despite identical electrical specs.
What is the reverse leakage current of the SMCJ15CHE3/57T at its stand-off voltage?
At the 15 V stand-off voltage (VWM), the SMCJ15CHE3/57T exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This ultra-low leakage preserves power efficiency in always-on circuits and prevents false triggering in high-impedance sensor interfaces. The SMCJ15CHE3/57T maintains this specification across its full operating temperature range.
Can the SMCJ15CHE3/57T be used in bi-directional protection circuits?
No-the SMCJ15CHE3/57T is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bi-directional applications (e.g., AC lines or differential data lines), the SMCJ15CA or SMCJ15CHE3/57T's bi-directional counterpart must be selected. Using the SMCJ15CHE3/57T in reverse-biased configurations outside its specified polarity risks failure or inadequate clamping.
SMCJ15CHE3/57T 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 55.8A
- 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)
SMCJ15CHE3/57T FAQ
1.How can I place an order for SMCJ15CHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ15CHE3/57T 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 SMCJ15CHE3/57T reliable?
The price and inventory of SMCJ15CHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ15CHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ15CHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ15CHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ15CHE3/57T?
SMCJ15CHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ15CHE3/57T 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 SMCJ15CHE3/57T?
For technical support, including SMCJ15CHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ15CHE3/57T requirements.
6.How does Aetrix verify that SMCJ15CHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ15CHE3/57T 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 SMCJ15CHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ15CHE3/57T?
All SMCJ15CHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ15CHE3/57T, 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 SMCJ15CHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ15CHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ15CHE3/57T Tags
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