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Vishay General Semiconductor - Diodes Division SMCJ17CAHE3_A/H
- Part No.:
- SMCJ17CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ17CAHE3_A/H.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,462
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Product details
Overview
SMCJ17CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 17 V standoff voltage (VWM), 1500 W peak pulse power (PPPM), and clamps to ≤27.6 V at 54.3 A (10/1000 μs waveform), with AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the SMCJ17CAHE3_A/H datasheet, SMCJ17CAHE3_A/H pinout, SMCJ17CAHE3_A/H application, or SMCJ17CAHE3_A/H equivalent, this device is selected for robust ESD and surge protection in automotive infotainment power rails, industrial sensor interfaces, and telecom line drivers where bidirectional clamping, low leakage (<1.0 μA at VWM), and MSL Level 1 reflow compatibility are required.
Technical Context
The SMCJ17CAHE3_A/H operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients above its breakdown voltage range (18.9–20.9 V at 1 mA). Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while low incremental surge resistance enables effective energy diversion during 10/1000 μs surges.
Thermally, it supports operation from –55 °C to +150 °C junction temperature, with RθJA = 75 °C/W and RθJL = 15 °C/W. The matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 whisker testing (Class 2), and the SMC package complies with UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 17 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 18.9–20.9 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | ≤27.6 V at IPPM = 54.3 A (10/1000 μs) - Peak voltage seen by protected circuit under rated surge; determines downstream IC survivability. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for standardized transient waveforms; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal quiescent current draw; critical for low-power sensor and battery-backed systems. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive and high-ambient industrial deployment. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC standard. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking (unlike unidirectional variants which feature cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as conduction terminal during negative transients; symmetrical with cathode for full-cycle clamping. |
| Cathode | Transient return path (bidirectional) | Acts as conduction terminal during positive transients; electrically identical to anode in CA-series devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity limitations or baking requirements. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and automotive enclosures. |
Applications
| Automotive Infotainment Power Rails | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting 12 V supply inputs to head unit MCUs and display drivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed upstream of DC/DC converters and LDOs to limit transient excursions. Use Value: Clamps 1500 W surges to ≤27.6 V, preventing latch-up or gate oxide damage in downstream PMICs and SoCs. |
Use Scenario: Shielding 4–20 mA analog sensor outputs and RS-485 bus lines from EFT and surge coupling in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (typ. <50 pF), bidirectional shunt protector across differential pairs or single-ended signals. Use Value: Sub-μA leakage preserves signal integrity; 17 V VWM matches common industrial supply ranges while avoiding false triggering. |
| Telecom Line Drivers | Consumer USB-C Power Delivery Paths |
Use Scenario: Safeguarding Ethernet PHY interface transformers and line driver ICs from lightning-induced surges on PoE-enabled ports. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, coordinated with secondary GDT or polymer PTC. Use Value: 1500 W PPPM handles IEC 61000-4-5 Combination Wave (10/700 μs) up to Level 4 without degradation. |
Use Scenario: Protecting VBUS lines in USB-C receptacles from hot-plug transients and reverse-voltage faults during PD negotiation. IC Role / Device Role / Timing Role: Bidirectional clamp between VBUS and ground, sized to survive repeated ±20 V, 10/1000 μs surges. Use Value: AEC-Q101 qualification and RoHS-compliant HE3 suffix ensure compliance in automotive-grade USB-C accessories. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17CA | Lower PPPM (400 W), same VWM (17 V), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Suitable for space-constrained consumer PCBs with lower surge exposure; not recommended for automotive or industrial mains-connected circuits. | Select when board area is critical and surge threat level is limited to IEC 61000-4-2 ESD only. |
| SMCJ17CAHM3_A/H | Identical electrical specs and AEC-Q101 qualification; halogen-free molding compound (per J-STD-0704), same SMC package | Required for RoHS+halogen-free compliance programs (e.g., EU automotive Tier 1 procurement); no performance trade-off. | Choose when halogen-free material compliance is mandated, with no change to thermal or electrical design. |
Compared with SMCJ17CAHE3_A/H, SMAJ17CA offers smaller size but reduced surge capability, while SMCJ17CAHM3_A/H delivers identical protection with halogen-free construction-enabling direct substitution where environmental compliance drives material selection.
Availability
SMCJ17CAHE3_A/H is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and telecom line card designs requiring stable component supply, long-term lifecycle support, and AEC-Q101 qualified surge protection.
Supply support for SMCJ17CAHE3_A/H 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, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure where failure tolerance and long-term parametric stability are non-negotiable.
FAQ
What is the clamping voltage of SMCJ17CAHE3_A/H at its rated peak pulse current?
The SMCJ17CAHE3_A/H clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 54.3 A under the standard 10/1000 μs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during surge events, ensuring compatibility with 3.3 V, 5 V, and 12 V logic and power domains.
Is SMCJ17CAHE3_A/H suitable for automotive applications?
Yes, SMCJ17CAHE3_A/H is AEC-Q101 qualified and specifically designed for automotive use. Its construction-including glass-passivated junction, MSL Level 1 reflow compatibility, and operation from –55 °C to +150 °C-meets stringent automotive reliability requirements for engine control units, infotainment systems, and ADAS sensor interfaces.
How does the bidirectional configuration of SMCJ17CAHE3_A/H affect its mounting and layout?
The SMCJ17CAHE3_A/H has no polarity marking and is symmetrically constructed, so orientation on the PCB is not critical. Unlike unidirectional SMCJ17A variants (which require cathode alignment), this bidirectional version simplifies layout and eliminates risk of reverse installation-ideal for automated assembly of AC-coupled or floating signal paths.
What is the maximum reverse leakage current for SMCJ17CAHE3_A/H at its stand-off voltage?
The maximum reverse leakage current (ID) for SMCJ17CAHE3_A/H is 1.0 μA at its 17 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes standby power loss in battery-operated equipment.
Does SMCJ17CAHE3_A/H meet RoHS and halogen-free requirements?
SMCJ17CAHE3_A/H is RoHS-compliant (per EU Directive 2011/65/EU) and carries the HE3 suffix indicating RoHS compliance and AEC-Q101 qualification. It is not halogen-free; for halogen-free compliance, select the SMCJ17CAHM3_A/H variant, which uses halogen-free molding compound while maintaining identical electrical and thermal performance.
SMCJ17CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- 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)
SMCJ17CAHE3_A/H FAQ
1.How can I place an order for SMCJ17CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ17CAHE3_A/H 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 SMCJ17CAHE3_A/H reliable?
The price and inventory of SMCJ17CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ17CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ17CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ17CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ17CAHE3_A/H?
SMCJ17CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ17CAHE3_A/H 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 SMCJ17CAHE3_A/H?
For technical support, including SMCJ17CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ17CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ17CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ17CAHE3_A/H 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 SMCJ17CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ17CAHE3_A/H?
All SMCJ17CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ17CAHE3_A/H, 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 SMCJ17CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ17CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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