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Vishay General Semiconductor - Diodes Division SMCJ15C-E3/57T
- Part No.:
- SMCJ15C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ15C-E3/57T.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,653
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Product details
Overview
SMCJ15C-E3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection on signal and power lines. It features a 15 V stand-off voltage (VWM), 24.4 V maximum clamping voltage (VC) at 61.5 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with 10/1000 µs waveform - suitable for automotive sensor line and industrial I/O port surge protection.
For engineers reviewing the SMCJ15C-E3/57T datasheet, SMCJ15C-E3/57T pinout, SMCJ15C-E3/57T application, or SMCJ15C-E3/57T equivalent, key selection criteria include bi-directional clamping symmetry, AEC-Q101 qualification, UL 497B recognition, low incremental surge resistance, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ15C-E3/57T operates as a bi-directional avalanche diode, exhibiting symmetrical breakdown behavior in both polarities with VBR min/max of 16.7 V / 18.5 V at 1.0 mA test current. Its junction capacitance is not specified for bi-directional types in the datasheet, and it lacks integrated thermal shutdown or logic control - functioning purely as a passive voltage-clamping device.
It complies with ANSI/IEEE C62.35 surge standards and is rated for -55 °C to +150 °C operating junction temperature. The device uses glass-passivated silicon junction technology, achieves MSL level 1 per J-STD-020, and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse stand-off voltage before significant leakage; defines safe operating window for protected circuitry |
| VBR (min/max) | 16.7 V / 18.5 V at IT = 1.0 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots |
| VC @ IPPM | 24.4 V at 61.5 A (10/1000 µs) - clamping voltage during worst-case surge; determines maximum stress imposed on downstream ICs |
| PPPM | 1500 W - peak transient power handling capability; enables protection against IEC 61000-4-5 Level 4 surges |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at rated stand-off; minimizes standby power loss and signal distortion |
| TJ max. | +150 °C - maximum junction temperature rating; supports operation in engine control units and industrial motor drives |
| Package | DO-214AB (SMCJ) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and J-bend leads for automated placement |
Pinout & Package
SMCJ15C-E3/57T is a two-terminal bi-directional TVS diode in DO-214AB (SMCJ) package. As a symmetric device, it has no polarity marking; both terminals are electrically identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (both) | Bi-directional avalanche junction | Provides symmetrical clamping in either polarity; requires no orientation during PCB placement |
| Case (cathode band absent) | Non-functional mechanical reference | No electrical connection; absence of band confirms bi-directional configuration per Vishay marking convention |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including engine control, body electronics, and ADAS sensor interfaces |
| UL 497B recognition (QVGQ2) | Meets Underwriters Laboratories requirements for telecom and industrial signal line protectors |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass-passivated junction | Enhances long-term reliability and stability of breakdown characteristics under thermal cycling |
| Low incremental surge resistance | Enables tighter clamping (24.4 V at 61.5 A) versus competing 15 V TVS devices with higher VC |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector interface to limit transient excursions before reaching sensitive ASICs. Use Value: Clamps 10/1000 µs surges to ≤24.4 V while sustaining 1500 W peak power - preventing latch-up or gate oxide damage in 3.3 V/5 V sensor signal chains. |
Use Scenario: Safeguarding PLC digital input modules and RS-485 transceivers against induced lightning surges and inductive switching spikes in factory automation systems. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on field-side signal lines, mounted adjacent to terminal blocks. Use Value: Withstands repeated 1 kV/0.5 kA surges per IEC 61000-4-5; 1.0 µA leakage at 15 V ensures minimal impact on high-impedance voltage-sense circuits. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from fast-rising EFT/burst noise and telecom lightning surges. IC Role / Device Role / Timing Role: Secondary-level protector downstream of gas discharge tubes (GDTs), providing low-clamp refinement. Use Value: 24.4 V clamping voltage ensures compliance with GR-1089-CORE Level 3 surge immunity while maintaining signal integrity on 100 Ω differential pairs. |
Use Scenario: Overvoltage suppression on AC-DC adapter primary-side rectifier outputs and DC bus rails feeding SMPS controllers. IC Role / Device Role / Timing Role: Fast-acting shunt device triggered by MOV failure or rectifier reverse recovery overshoot. Use Value: 1500 W PPPM rating handles single-event energy up to 1.5 J (10/1000 µs), exceeding typical adapter surge test requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC15C | Same VWM (15 V) and PPPM (1500 W), but smaller DO-214AA (SMA) package; lower IPPM (52.5 A) and higher VC (27.7 V) | Limited to space-constrained consumer electronics; unsuitable for AEC-Q101 automotive designs | Select SAC15C only when board area is critical and automotive qualification is not required |
| 1.5KE15CA | Through-hole TO-218 package; identical VWM (15 V), VC (24.4 V), and PPPM (1500 W); higher thermal mass but incompatible with SMT lines | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is mandated | Choose 1.5KE15CA only for retrofit or repair of existing through-hole designs - not for new SMT layouts |
Compared with SAC15C and 1.5KE15CA, the SMCJ15C-E3/57T uniquely combines AEC-Q101 qualification, DO-214AB SMT compatibility, and 24.4 V clamping in a single solution - making it the preferred choice for new automotive and industrial SMT designs requiring certified surge resilience.
Availability
SMCJ15C-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply and full traceability.
Supply support for SMCJ15C-E3/57T 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 automotive-grade validation.
The SMCJ series was developed specifically for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and UL recognition are mandatory.
FAQ
What does the "C" suffix indicate in SMCJ15C-E3/57T?
The "C" suffix in SMCJ15C-E3/57T denotes a bi-directional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike uni-directional variants (e.g., SMCJ15A), it has no cathode band marking and exhibits matched breakdown characteristics above and below 0 V - essential for protecting AC-coupled or floating signal lines such as CAN, RS-485, or Ethernet PHYs. This is confirmed in Vishay's datasheet section "Devices for Bi-Direction Applications".
Is SMCJ15C-E3/57T RoHS compliant and lead-free?
Yes, SMCJ15C-E3/57T is RoHS compliant and lead-free. The "E3" suffix explicitly indicates RoHS-compliant commercial-grade construction per Directive 2011/65/EU, with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards. It also passes JESD 201 Class 1A whisker testing, ensuring long-term interconnect reliability in thermally cycled applications.
What is the maximum clamping voltage of SMCJ15C-E3/57T under surge conditions?
The maximum clamping voltage (VC) of SMCJ15C-E3/57T is 24.4 V, measured at a peak pulse current (IPPM) of 61.5 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage the protected circuit will experience during a worst-case transient - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream.
Does SMCJ15C-E3/57T require heatsinking for normal operation?
No, SMCJ15C-E3/57T does not require external heatsinking for transient suppression duty cycles. Its 6.5 W steady-state power dissipation (PD) rating assumes operation on infinite heatsink at TA = 50 °C, but typical surge events are short-duration (µs to ms). For reliable long-term operation, Vishay specifies mounting on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal - sufficient for thermal management during repetitive surges.
How does SMCJ15C-E3/57T differ from SMCJ15A-E3/57T?
SMCJ15C-E3/57T is bi-directional with symmetrical clamping and no polarity marking, whereas SMCJ15A-E3/57T is uni-directional with a cathode band and forward voltage drop (~3.5 V at 100 A). The "C" variant supports AC or floating-line protection (e.g., data buses), while the "A" variant is used for DC rail protection where polarity is fixed. Their VWM (15 V), PPPM (1500 W), and VC (24.4 V) are identical, but SMCJ15A also specifies IFSM (200 A) - irrelevant for the bi-directional SMCJ15C-E3/57T.
SMCJ15C-E3/57T 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ15C-E3/57T FAQ
1.How can I place an order for SMCJ15C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ15C-E3/57T 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 SMCJ15C-E3/57T reliable?
The price and inventory of SMCJ15C-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ15C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ15C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ15C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ15C-E3/57T?
SMCJ15C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ15C-E3/57T 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 SMCJ15C-E3/57T?
For technical support, including SMCJ15C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ15C-E3/57T requirements.
6.How does Aetrix verify that SMCJ15C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ15C-E3/57T 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 SMCJ15C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ15C-E3/57T?
All SMCJ15C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ15C-E3/57T, 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 SMCJ15C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ15C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ15C-E3/57T Tags
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