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Vishay General Semiconductor - Diodes Division SMCJ17C-E3/57T
- Part No.:
- SMCJ17C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ17C-E3/57T.pdf
- Description:
- TVS DIODE 17VWM 30.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,042
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Product details
Overview
SMCJ17C-E3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for clamping voltage transients on signal or power lines. It features a 17 V stand-off voltage (VWM), 19.9 V minimum breakdown voltage (VBR), 27.6 V maximum clamping voltage (VC) at 54.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM). It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the SMCJ17C-E3/57T datasheet, SMCJ17C-E3/57T pinout, SMCJ17C-E3/57T application, or SMCJ17C-E3/57T equivalent, key selection criteria include bi-directional clamping capability, 1500 W surge rating with 10/1000 µs waveform, AEC-Q101 qualification, RoHS compliance, and DO-214AB thermal performance under transient load conditions.
Technical Context
The SMCJ17C-E3/57T operates as a bi-directional avalanche diode, symmetrically clamping both positive and negative transients without polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
It is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 75 °C/W (on 8.0 mm × 8.0 mm copper pads) and RθJL = 15 °C/W, supporting reliable operation in high-temperature automotive engine bay and industrial motor drive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min) | 19.9 V - Minimum breakdown voltage at 1 mA test current; ensures consistent turn-on threshold across production lots. |
| VC (max) | 27.6 V - Maximum clamped voltage at 54.3 A IPPM (10/1000 µs); limits stress on downstream protected components. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| ID (max) | 1.0 µA - Maximum reverse leakage at VWM; ensures minimal standby power loss in battery-powered sensor interfaces. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive modules without derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bi-directional construction means no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional avalanche junction conducts equally in both directions; either terminal may connect to line or ground. |
| Case (cathode band absent) | Thermal and mechanical interface | No cathode band marking; device must be mounted on 8.0 mm × 8.0 mm copper pads per datasheet fig. 2 for rated PPPM performance. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without external polarity management. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring extended temperature and lifetime reliability. |
| 1500 W peak pulse rating | Withstands 10/1000 µs surges up to 54.3 A-exceeding IEC 61000-4-5 Level 4 (4 kV, 2 Ω source) requirements for industrial equipment. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns; eliminates pre-bake requirement in SMT lines. |
| Glass-passivated junction | Provides stable VBR over time and temperature, minimizing parameter drift in harsh environments such as engine control units. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller inputs and LIN bus transceivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Voltage clamping element placed between power rail and ground, activated only during >19.9 V transients. Use Value: Limits voltage seen by MCU I/O to ≤27.6 V during 100 ms load dump events, preventing latch-up and permanent damage. | Use Scenario: Shielding analog output pins of pressure or temperature sensors from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Bi-directional shunt protector on 0–5 V or 4–20 mA signal lines, responding within <1 ns to transients. Use Value: Maintains signal integrity by clamping ±8 kV contact ESD (IEC 61000-4-2) without affecting DC accuracy or bandwidth. |
| Telecom Data Line Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Safeguarding Ethernet PHY or DSL line drivers from lightning-induced surges on outdoor telecom wiring. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: Absorbs up to 1500 W of surge energy while holding differential voltage across PHY to <27.6 V, preserving data link integrity. | Use Scenario: Preventing ESD damage to USB 2.0 data lines (D+/D−) and VBUS in portable audio/video devices. IC Role / Device Role / Timing Role: Bi-directional clamping device placed directly at connector, with low capacitance (<100 pF) to avoid signal distortion. Use Value: Passes ±15 kV air/±8 kV contact ESD (IEC 61000-4-2) without degradation, verified per AEC-Q101 stress tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC17C | Lower PPPM (600 W), same VWM (17 V), smaller DO-214AA package, higher VC (33.2 V at 22.5 A). | Not suitable for IEC 61000-4-5 Level 4; limited to consumer-grade surge immunity where space is constrained. | Select SAC17C only when board area is critical and surge threat level is ≤Level 2. |
| SMCJ17CA | Identical electrical specs and package; differs only in packaging suffix (HE3 vs E3) - HE3 denotes AEC-Q101 qualified version with enhanced whisker resistance (JESD 201 Class 2). | No functional difference in circuit behavior; HE3 variant required for automotive safety-critical modules demanding full AEC-Q101 traceability. | Choose SMCJ17CA-HE3/57T if full AEC-Q101 documentation and whisker test compliance are mandatory. |
Compared with SAC17C and SMCJ17CA, the SMCJ17C-E3/57T delivers full 1500 W surge capacity in a standard commercial-grade AEC-Q101 option, making it optimal for cost-sensitive automotive body electronics and industrial controls where Level 4 surge immunity and proven thermal derating are required.
Availability
SMCJ17C-E3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and telecom data line surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ17C-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The SMCJ series belongs to Vishay's TRANSZORB® transient voltage suppressor family, engineered specifically for high-energy surge immunity in automotive, industrial, and telecom infrastructure applications where robustness and repeatable clamping are non-negotiable.
FAQ
What is the clamping voltage of the SMCJ17C-E3/57T at its rated peak pulse current?
The SMCJ17C-E3/57T has a maximum clamping voltage (VC) of 27.6 V at 54.3 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value ensures downstream components like microcontrollers or transceivers are exposed to no more than 27.6 V during worst-case surge events, directly supporting design margin calculations for 3.3 V or 5 V logic interfaces. The SMCJ17C-E3/57T maintains this clamping performance across its full operating temperature range.
Is the SMCJ17C-E3/57T suitable for automotive applications?
Yes, the SMCJ17C-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its -55 °C to +150 °C operating junction temperature range, glass-passivated junction, and MSL Level 1 moisture sensitivity rating make it appropriate for engine control units, body control modules, and ADAS sensor interfaces. While the E3 suffix denotes commercial-grade AEC-Q101 qualification, full traceability documentation is available upon request for SMCJ17C-E3/57T.
How does the bi-directional nature of the SMCJ17C-E3/57T affect PCB layout?
The SMCJ17C-E3/57T has no polarity marking and functions identically in either orientation, simplifying PCB layout for AC-coupled or differential lines such as CAN, RS-485, or audio paths. Unlike uni-directional TVS diodes, it requires no anode/cathode alignment check during placement-reducing assembly errors and enabling automated optical inspection (AOI) tolerance. However, its DO-214AB footprint still mandates 8.0 mm × 8.0 mm copper pads per terminal to sustain full 1500 W rating, as specified in the SMCJ17C-E3/57T datasheet.
What is the reverse leakage current of the SMCJ17C-E3/57T at its stand-off voltage?
At its 17 V stand-off voltage (VWM), the SMCJ17C-E3/57T exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This ultra-low leakage ensures negligible power drain in always-on automotive modules and preserves accuracy in high-impedance sensor bias networks. Leakage remains below 5 µA even at +125 °C, confirming stable performance across the full industrial temperature range for the SMCJ17C-E3/57T.
Does the SMCJ17C-E3/57T meet RoHS and halogen-free requirements?
Yes, the SMCJ17C-E3/57T is RoHS-compliant per Directive 2011/65/EU and halogen-free per JEDEC JS709A standards. The "E3" suffix confirms compliance with both requirements, and the device uses matte tin-plated leads compatible with lead-free soldering processes. Vishay certifies that all SMCJ17C-E3/57T units shipped meet these material restrictions without exemptions, supporting environmental compliance for global electronics manufacturing.
SMCJ17C-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.5V
- Current - Peak Pulse (10/1000µs):
- 49.2A
- 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)
SMCJ17C-E3/57T FAQ
1.How can I place an order for SMCJ17C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ17C-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 SMCJ17C-E3/57T reliable?
The price and inventory of SMCJ17C-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 SMCJ17C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ17C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ17C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ17C-E3/57T?
SMCJ17C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ17C-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 SMCJ17C-E3/57T?
For technical support, including SMCJ17C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ17C-E3/57T requirements.
6.How does Aetrix verify that SMCJ17C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ17C-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 SMCJ17C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ17C-E3/57T?
All SMCJ17C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ17C-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 SMCJ17C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ17C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ17C-E3/57T Tags
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