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Alpha & Omega Semiconductor Inc. SMDJ10CA
- Part No.:
- SMDJ10CA
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ10CA.pdf
- Description:
- 1CH 10V BIDIRECTIONAL 3000W SMD
- Quantity:
- Payment:
- Shipping:
Inventory:7,259
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Product details
Overview
SMDJ10CA from Alpha & Omega Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for high-energy surge protection on DC power rails and signal lines. It features 10 V reverse stand-off voltage (VRWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 176.5 A peak pulse current, and 3000 W peak pulse power rating on 10/1000 µs waveform.
For engineers reviewing the SMDJ10CA datasheet, pinout, applications, or equivalent options, key selection criteria include bidirectional clamping capability, low leakage (5.0 µA @ VRWM), fast response time (<1.0 ps), JEDEC-compliant DO-214AB surface-mount packaging, and suitability for IEC 61000-4-2/4-4/4-5 compliant protection circuits.
Technical Context
The SMDJ10CA operates as a bi-directional avalanche diode, providing symmetrical clamping in both polarities without requiring external polarity management. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and low temperature coefficient (0.1% × VBR/°C).
Designed for non-repetitive surge events with 0.01% duty cycle, it delivers 3000 W peak pulse power when mounted on 8.0 mm × 8.0 mm copper pads, with thermal resistance of 15 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 10.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 mA | 11.1–12.3 V - Confirmed avalanche breakdown range ensuring reliable turn-on margin |
| VC @ IPPM | 17.0 V - Clamped voltage at 176.5 A, limiting downstream component stress during surge |
| PPPM (10/1000 µs) | 3000 W - Peak surge energy handling capacity under standardized lightning/surge waveform |
| IR @ VRWM | 5.0 µA - Low leakage preserves system efficiency in standby and low-power modes |
| TJ max | +150 °C - Enables operation in industrial and automotive under-hood environments |
| Package | DO-214AB (SMC J-Bend) - Surface-mount footprint with strain relief and MSL1 reflow compatibility |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with J-bend leads; cathode band denotes polarity for unidirectional variants, but SMDJ10CA is bi-directional and has no functional polarity marking-both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional surge conduction path | Either terminal serves as clamping node; no orientation required during placement |
| Case / Body | Non-conductive thermal and mechanical interface | Plastic encapsulation provides UL 94V-0 flammability rating and strain relief |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| Fast response time | <1.0 ps turn-on ensures suppression before sensitive ICs experience overvoltage damage |
| Glass-passivated junction | Improves long-term reliability and VBR stability across temperature and humidity stress |
| MSL1 reflow rating | Supports lead-free reflow up to 260 °C peak, compatible with standard SMT assembly processes |
| Low profile SMC package | Reduces board space vs. larger DO-201 packages while maintaining 3 kW surge capability |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 12 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary surge shunt device placed upstream of DC-DC converters and microcontrollers. Use Value: Limits clamped voltage to 17.0 V, preventing damage to 24 V-rated input stages while surviving 3000 W surges per IEC 61000-4-5 Level 4. |
Use Scenario: Safeguarding LIN bus transceivers and sensor interfaces in BCMs exposed to battery clamp and jump-start surges. IC Role / Device Role / Timing Role: Bi-directional TVS placed across LIN differential pair and supply rails. Use Value: Symmetrical clamping maintains signal integrity during ±100 V transients without polarity-dependent failure risk. |
| Telecom PoE Interface Protection | Renewable Energy Charge Controller |
|
Use Scenario: Shielding IEEE 802.3af/at Power over Ethernet (PoE) data lines and power pairs from ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated side of PoE PD interface, after primary isolation barrier. Use Value: 5.0 µA leakage avoids degrading PoE classification accuracy; 17.0 V VC ensures compliance with IEEE 802.3at Class 4 voltage limits. |
Use Scenario: Protecting MPPT controller inputs connected to solar panel strings subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bidirectional clamping device across PV+ and PV− inputs before DC-DC stage. Use Value: Withstands repeated 3000 W pulses per IEC 61000-4-5 Ed.3 Annex A, enabling >20-year field life in outdoor installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC10CA (Littelfuse) | Same VRWM (10 V), identical DO-214AB package, but lower PPPM (1500 W) and higher VC (19.0 V @ 100 A) | Not suitable for IEC 61000-4-5 Level 4; limited to Level 3 or lower-energy ESD-only use cases | Select only if system surge requirements are ≤1500 W and layout cannot accommodate higher-clamping alternatives |
| 1.5KE10CA (ON Semiconductor) | Higher VRWM tolerance (±10%), axial-leaded DO-15 package, same 3000 W rating but slower response (>1 ns) and no MSL1 rating | Requires through-hole assembly; unsuitable for high-density SMT designs or automated reflow production | Choose only for legacy through-hole systems where board real estate and reflow compatibility are not constraints |
Compared with SAC10CA and 1.5KE10CA, the SMDJ10CA delivers superior surge robustness in compact SMT form factor-enabling higher power density, faster transient response, and full compatibility with modern lead-free manufacturing, without sacrificing clamping precision or thermal performance.
Availability
SMDJ10CA is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, telecom PoE interfaces, and renewable energy charge controllers requiring stable component supply and full traceability.
Supply support for SMDJ10CA 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
Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-efficiency MOSFETs, TVS diodes, and power ICs for computing, consumer, industrial, and automotive markets.
The SMDJ series was developed specifically for high-reliability, high-power surface-mount surge protection-targeting applications demanding 3000 W pulse handling, bi-directional symmetry, and JEDEC-compliant manufacturability in harsh environments.
FAQ
What is the clamping voltage of the SMDJ10CA under maximum rated surge current?
The SMDJ10CA exhibits a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 176.5 A on a 10/1000 µs waveform. This value is measured and guaranteed per the manufacturer's datasheet Rev. 1.2, ensuring predictable overvoltage limiting for downstream circuitry protected by the SMDJ10CA.
Is the SMDJ10CA unidirectional or bidirectional, and how does that affect PCB layout?
The SMDJ10CA is a bi-directional TVS diode, meaning it clamps symmetrically in both polarities. Unlike unidirectional variants (e.g., SMDJ10A), it has no cathode band designation and can be placed in either orientation on the PCB-eliminating polarity-check steps during assembly and simplifying layout for AC-coupled or floating nodes.
Does the SMDJ10CA meet lead-free reflow requirements for modern SMT lines?
Yes, the SMDJ10CA meets MSL Level 1 per J-STD-020 and supports lead-free reflow profiles with a maximum peak temperature of 260 °C. Its DO-214AB package and matte tin lead finish ensure compatibility with standard automated SMT assembly, including nitrogen-reflow and double-sided reflow processes used in high-volume production.
What is the maximum reverse leakage current of the SMDJ10CA at its rated VRWM?
At its reverse stand-off voltage of 10.0 V, the SMDJ10CA specifies a maximum reverse leakage current (IR) of 5.0 µA at 25 °C. This low leakage preserves power efficiency in always-on systems and avoids false triggering in high-impedance sensing circuits where the SMDJ10CA is deployed.
How does the SMDJ10CA compare to older 1.5KE series TVS diodes in terms of surge handling and packaging?
The SMDJ10CA matches the 3000 W peak pulse power rating of the 1.5KE10CA but replaces its axial DO-15 through-hole package with a surface-mount DO-214AB (SMC) footprint-reducing board area by >60%, enabling automated placement, and improving thermal coupling to PCB copper. Its sub-1 ps response also exceeds the ~1 ns speed of 1.5KE devices, making the SMDJ10CA better suited for protecting high-speed interfaces.
SMDJ10CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- 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):
- 176.5A
- Power - Peak Pulse:
- 3000W (3kW)
- 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
SMDJ10CA FAQ
1.How can I place an order for SMDJ10CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ10CA 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 SMDJ10CA reliable?
The price and inventory of SMDJ10CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ10CA is usually 5 days.
3.What payment methods are accepted for SMDJ10CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ10CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ10CA?
SMDJ10CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ10CA 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 SMDJ10CA?
For technical support, including SMDJ10CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ10CA requirements.
6.How does Aetrix verify that SMDJ10CA is sourced from the original manufacturer or authorized distributors?
All SMDJ10CA 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 SMDJ10CA meets industry standards.
7.What is the process for return or replacement of SMDJ10CA?
All SMDJ10CA units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ10CA, 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 SMDJ10CA part is unused and in its original packaging.
Return procedure for SMDJ10CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDJ10CA Tags
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