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Vishay General Semiconductor - Diodes Division SMCJ11CAHE3/57T
- Part No.:
- SMCJ11CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ11CAHE3/57T.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,166
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Product details
Overview
SMCJ11CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 11 V standoff voltage (VWM), 18.2 V maximum clamping voltage (VC) at 82.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ11CAHE3/57T datasheet, SMCJ11CAHE3/57T pinout, SMCJ11CAHE3/57T application, or SMCJ11CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 1500 W surge rating, low thermal resistance (RθJL = 15 °C/W), and RoHS-compliant matte tin terminations suitable for automated SMT assembly.
Technical Context
The SMCJ11CAHE3/57T operates as a bidirectional avalanche diode, clamping transients in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response (<1 ns), while the SMC package provides low incremental surge resistance and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
Designed for unclamped inductive switching events and lightning-induced surges, it delivers symmetrical electrical characteristics - including identical VBR min/max (12.2 V / 13.5 V), ID ≤ 5.0 µA at VWM, and TJ range of –55 °C to +150 °C - enabling use in harsh environments where bidirectional surge immunity is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V nominal systems. |
| VBR (min/max) | 12.2 V / 13.5 V - Breakdown voltage range at 1 mA test current; guarantees reliable turn-on within tight tolerance for predictable protection timing. |
| VC @ IPPM | 18.2 V - Clamped voltage at 82.4 A peak pulse current; limits downstream IC stress during 1500 W transient events. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 µs waveform; supports high-energy surge standards like ISO 7637-2 Pulse 5a. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial control cabinet environments. |
| RθJL | 15 °C/W - Junction-to-lead thermal resistance; allows effective heat dissipation through PCB copper pads without external heatsinking. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, and ESD testing; required for ECU, ADAS, and body control modules. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | Accepts reverse surge energy during negative transients; forms symmetrical clamping path with cathode. |
| Cathode | Transient current entry point (positive polarity) | Accepts forward surge energy during positive transients; completes bidirectional clamping loop with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both directions - eliminates need for polarity-aware layout in differential or AC-coupled signal paths. |
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, high-temperature operating life, and ESD robustness - supports PPAP compliance. |
| 1500 W peak pulse power | Withstands high-energy transients such as load dump (ISO 16750-2) and coupled lightning surges (IEC 61000-4-5) without degradation. |
| Low RθJL (15 °C/W) | Enables efficient thermal transfer to PCB copper pads - sustains repeated surge events without thermal runaway in compact layouts. |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak - supports high-yield automated assembly without moisture sensitivity concerns. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS diode providing primary overvoltage clamping at board-level power entry. Use Value: Limits rail voltage to ≤18.2 V during 1500 W surges, preventing damage to MCU, CAN transceivers, and analog front-ends. |
Use Scenario: Shielding RS-485 or LIN bus lines in factory automation sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed adjacent to connector interface to shunt surge energy before IC pins. Use Value: Clamps ±15 kV ESD (IEC 61000-4-2) and 40 A surge (IEC 61000-4-4) within nanoseconds, preserving signal integrity and data accuracy. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered network switches and base stations from induced surges on 48 V DC input rails. IC Role / Device Role / Timing Role: Secondary surge suppression stage after primary MOV or GDT, delivering precise low-clamp voltage. Use Value: Maintains <18.2 V clamping at 82.4 A, protecting PMICs and Ethernet PHYs without overdesigning upstream components. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Board-level TVS across motor terminals to clamp inductive kickback before reaching driver ICs. Use Value: Absorbs repetitive 1500 W pulses with minimal derating - extends lifetime of half-bridge MOSFETs and gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC11CA | Same VWM (11 V) and bidirectional configuration, but lower PPPM (600 W) and higher VC (22 V at rated IPPM). | Limited to lower-energy surges (e.g., IEC 61000-4-2 ESD only); not suitable for ISO 7637-2 or load dump. | Select when cost sensitivity outweighs surge energy requirements and PCB space is constrained. |
| SMCJ11CAHM3/57T | Identical electrical specs and AEC-Q101 qualification, but halogen-free and RoHS-compliant per Vishay HM3 suffix. | Required for strict environmental compliance in EU automotive Tier 1 programs and medical devices. | Choose when halogen-free material content is mandated by OEM or regulatory specification. |
Compared with SAC11CA and SMCJ11CAHM3/57T, the SMCJ11CAHE3/57T uniquely balances full AEC-Q101 qualification, 1500 W surge capability, and commercial-grade RoHS compliance - making it optimal for cost-sensitive yet reliability-critical automotive and industrial designs where halogen content is not restricted.
Availability
SMCJ11CAHE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and consumer appliance motor drives requiring stable component supply and long-term production continuity.
Supply support for SMCJ11CAHE3/57T 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, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure - prioritizing low clamping voltage, repeatable surge endurance, and AEC-Q101 validation for mission-critical systems.
FAQ
What is the clamping voltage of the SMCJ11CAHE3/57T at its rated peak pulse current?
The SMCJ11CAHE3/57T has a maximum clamping voltage (VC) of 18.2 V at its rated peak pulse current (IPPM) of 82.4 A, measured using the standardized 10/1000 µs waveform. This value ensures downstream circuitry remains below critical overvoltage thresholds during surge events. The SMCJ11CAHE3/57T maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is the SMCJ11CAHE3/57T qualified for automotive applications?
Yes, the SMCJ11CAHE3/57T carries AEC-Q101 qualification, verified through accelerated stress tests including high-temperature operating life, temperature cycling, and ESD. Its RoHS-compliant HE3 suffix confirms automotive-grade manufacturing traceability and process control. The SMCJ11CAHE3/57T is routinely deployed in engine control modules, body electronics, and ADAS sensor nodes.
How does the SMCJ11CAHE3/57T differ from unidirectional variants like SMCJ11AHE3/57T?
The SMCJ11CAHE3/57T is bidirectional with symmetrical clamping in both polarities and no cathode band marking, whereas SMCJ11AHE3/57T is unidirectional, marked with a cathode band and conducts only in reverse bias. The SMCJ11CAHE3/57T supports AC-coupled or floating signal lines, while the unidirectional version suits DC-biased rails where polarity is fixed and forward conduction must be blocked.
What is the thermal resistance from junction to lead (RθJL) for the SMCJ11CAHE3/57T?
The SMCJ11CAHE3/57T has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W, enabling efficient heat transfer from the silicon die to the PCB copper pads via its SMC (DO-214AB) package leads. This low RθJL supports sustained surge duty cycles without thermal runaway. The SMCJ11CAHE3/57T achieves this performance with standard 0.31" × 0.31" copper pads per terminal, per Vishay's recommended layout.
Does the SMCJ11CAHE3/57T meet moisture sensitivity level (MSL) requirements for surface-mount assembly?
Yes, the SMCJ11CAHE3/57T meets MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions and withstand standard SMT reflow profiles with a peak temperature of up to 260 °C without preconditioning. This eliminates baking requirements and simplifies manufacturing logistics. The SMCJ11CAHE3/57T's robust packaging ensures reliability in high-volume automated placement environments.
SMCJ11CAHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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)
SMCJ11CAHE3/57T FAQ
1.How can I place an order for SMCJ11CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ11CAHE3/57T 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 SMCJ11CAHE3/57T reliable?
The price and inventory of SMCJ11CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ11CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ11CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ11CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ11CAHE3/57T?
SMCJ11CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ11CAHE3/57T 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 SMCJ11CAHE3/57T?
For technical support, including SMCJ11CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ11CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ11CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ11CAHE3/57T 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 SMCJ11CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ11CAHE3/57T?
All SMCJ11CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ11CAHE3/57T, 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 SMCJ11CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ11CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ11CAHE3/57T Tags
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