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Vishay General Semiconductor - Diodes Division SMCJ10CAHE3_A/I
- Part No.:
- SMCJ10CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10CAHE3_A/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,975
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Product details
Overview
SMCJ10CAHE3_A/I 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 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage (VC) at 88.2 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 SMCJ10CAHE3_A/I datasheet, SMCJ10CAHE3_A/I pinout, SMCJ10CAHE3_A/I application, or SMCJ10CAHE3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients induced by inductive switching or ESD events. Its bidirectional architecture ensures symmetrical clamping in both polarities, with breakdown voltage (VBR) specified at 11.1–12.3 V (min/max) at 1.0 mA test current - meeting ANSI/IEEE C62.35 standards for surge suppression.
The device uses a glass-passivated silicon junction and is rated for -55 °C to +150 °C operating junction temperature. It meets MSL level 1 per J-STD-020, supports 260 °C lead-free reflow, and exhibits low incremental surge resistance - critical for maintaining low VC under high IPPM stress without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below system rail voltage |
| VBR (min/max) | 11.1 V / 12.3 V at 1.0 mA - precise breakdown threshold ensuring predictable turn-on during overvoltage events |
| VC @ IPPM | 17.0 V at 88.2 A - clamping voltage under 10/1000 μs surge; determines protected circuit's maximum transient exposure |
| PPPM | 1500 W - peak pulse power handling capability; enables survival of high-energy transients like ISO 7637-2 Pulse 5a |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance; dictates derating above 25 °C ambient for sustained reliability |
| TJ max. | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode side) | Transient return path (bidirectional) | Acts as common reference node for clamping in either polarity; connects to ground or low-impedance return plane |
| Anode (Cathode side) | Transient return path (bidirectional) | Identical functional role to opposite terminal; symmetric layout eliminates orientation dependency during placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics where field failure risk must be minimized |
| Low RθJL (15 °C/W) | Supports efficient heat transfer to PCB copper pads, reducing thermal stress during repetitive surges |
| MSL Level 1 rating | Permits unlimited floor life and direct placement into lead-free reflow without baking preconditioning |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VCC and GND, clamping spikes before they reach downstream regulators or logic ICs. Use Value: Limits transient voltage to ≤17.0 V during 1500 W surges, preventing latch-up or permanent damage to 3.3 V/5 V logic circuits. | Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation systems exposed to relay coil flyback noise. IC Role / Device Role / Timing Role: Bidirectional clamp across differential signal pair (e.g., 4–20 mA loop), suppressing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Symmetric clamping ensures equal protection for positive and negative transients without polarity-sensitive layout constraints. |
| Telecom Interface Surge Protection | Consumer Device USB Port Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS placed at connector entry point, absorbing bulk energy before secondary protection stages. Use Value: 1500 W PPPM rating handles multi-kA surge currents typical in outdoor telecom installations per ITU-T K.20. | Use Scenario: Guarding USB 2.0 data lines in portable medical monitors against ESD events during clinical handling. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS integrated near USB connector, minimizing signal integrity impact while passing ±15 kV contact discharge. Use Value: Clamps sub-100 ns ESD pulses to <17 V, preserving eye diagram integrity and preventing PHY layer reset or enumeration failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CAHE3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for lower-energy transients; limited to consumer-grade or non-automotive use due to lack of AEC-Q101 | Select when board space is constrained and surge energy does not exceed 400 W. |
| SMCJ10CAHM3_A/I | Halogen-free construction; identical electrical specs and AEC-Q101 qualification | No functional difference; used where RoHS-compliant halogen-free materials are mandated by OEM sourcing policy | Choose for automotive Tier 1 programs requiring halogen-free bill-of-materials compliance. |
Compared with SMCJ10CAHE3_A/I, SMAJ10CAHE3_A/I trades surge capacity and thermal performance for footprint reduction, while SMCJ10CAHM3_A/I offers identical protection with halogen-free packaging - enabling compliance-driven substitution without design change.
Availability
SMCJ10CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface modules, and telecom infrastructure equipment requiring stable component supply with full AEC-Q101 traceability and long-lifecycle support.
Supply support for SMCJ10CAHE3_A/I 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The SMCJ series is engineered specifically for high-power transient suppression in harsh environments - emphasizing robust clamping, AEC-Q101 validation, and thermal resilience for under-hood and factory-floor deployments.
FAQ
What is the clamping voltage of SMCJ10CAHE3_A/I at its rated peak pulse current?
The SMCJ10CAHE3_A/I has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 88.2 A using the standardized 10/1000 μs waveform. This value is measured under defined test conditions with 8.0 mm × 8.0 mm copper pads per terminal and represents the upper voltage limit imposed on protected circuitry during worst-case surge events. The SMCJ10CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMCJ10CAHE3_A/I qualified for automotive applications?
Yes, SMCJ10CAHE3_A/I is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, and the device undergoes rigorous stress testing for temperature cycling, high-temperature reverse bias, and ESD immunity. This makes SMCJ10CAHE3_A/I appropriate for under-hood and chassis-mounted systems where reliability under thermal and electrical stress is critical.
How does the bidirectional nature of SMCJ10CAHE3_A/I affect its PCB layout?
The bidirectional configuration of SMCJ10CAHE3_A/I eliminates polarity marking and orientation sensitivity - both terminals are functionally identical, allowing placement without regard to anode/cathode direction. This simplifies layout, reduces assembly errors, and supports protection of AC-coupled or floating nodes such as RS-485 differential pairs or transformer-isolated power supplies. Unlike unidirectional TVS diodes, SMCJ10CAHE3_A/I requires no band-based alignment during automated placement.
What is the thermal resistance profile of SMCJ10CAHE3_A/I, and how does it impact derating?
SMCJ10CAHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads. This value directly governs power derating above 25 °C ambient: for example, at 85 °C ambient, the maximum allowable continuous power dissipation drops to approximately 3.5 W. Engineers must apply this derating curve (per Figure 2 in the datasheet) when sizing thermal relief and verifying long-term reliability under sustained surge duty cycles.
Can SMCJ10CAHE3_A/I be used in place of a unidirectional TVS like SMCJ10AHE3_A/I?
No - SMCJ10CAHE3_A/I is strictly bidirectional and cannot replace unidirectional variants like SMCJ10AHE3_A/I in DC-biased applications where forward conduction must be blocked. While both share identical VWM (10 V) and VC (17.0 V), the unidirectional version conducts only in reverse bias and blocks forward current up to 3.5 V at 100 A, whereas SMCJ10CAHE3_A/I clamps symmetrically in both directions. Substitution would compromise circuit functionality in power rail protection where forward voltage drop matters.
SMCJ10CAHE3_A/I 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 88.2A
- 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)
SMCJ10CAHE3_A/I FAQ
1.How can I place an order for SMCJ10CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10CAHE3_A/I 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 SMCJ10CAHE3_A/I reliable?
The price and inventory of SMCJ10CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ10CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10CAHE3_A/I?
SMCJ10CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10CAHE3_A/I 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 SMCJ10CAHE3_A/I?
For technical support, including SMCJ10CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ10CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ10CAHE3_A/I 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 SMCJ10CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ10CAHE3_A/I?
All SMCJ10CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10CAHE3_A/I, 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 SMCJ10CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ10CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10CAHE3_A/I Tags
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