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Alpha & Omega Semiconductor Inc. SMDJ16CA
- Part No.:
- SMDJ16CA
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ16CA.pdf
- Description:
- 1CH 16V BIDIRECTIONAL 3000W SMD
- Quantity:
- Payment:
- Shipping:
Inventory:6,932
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Product details
Overview
SMDJ16CA from Alpha & Omega Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for robust overvoltage protection in DC power rails and signal lines. It features 16.0 V reverse stand-off voltage (VRWM), 26.0 V maximum clamping voltage at 115.4 A peak pulse current, and 3000 W peak pulse power dissipation on 10/1000 µs waveform - deployed in industrial motor drives and telecom power supplies.
For engineers reviewing the SMDJ16CA datasheet, pinout, applications, or equivalent options, key selection criteria include bidirectional clamping capability, low thermal resistance (RθJL = 15 °C/W), compliance with J-STD-020 MSL Level 1, and verified 150 °C junction temperature rating under surge conditions.
Technical Context
The SMDJ16CA operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities due to its bi-directional construction. Its fast response time (<1.0 ps from 0 V to VBR) and low profile DO-214AB package enable effective suppression of ESD, lightning-induced transients, and inductive switching spikes without board-level layout compromise.
Electrical characteristics are specified at 1 mA test current, with breakdown voltage range of 17.80–19.70 V and maximum reverse leakage of 2.0 µA at VRWM. Thermal performance is validated with RθJA = 75 °C/W (on 8.0 mm × 8.0 mm copper pads) and rated for -55 °C to +150 °C operating junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 16.0 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR @ IT=1 mA | 17.80–19.70 V - Confirmed avalanche breakdown threshold ensuring predictable turn-on |
| VC @ IPPM=115.4 A | 26.0 V - Clamping voltage limiting protected circuit stress during 3000 W transient |
| PPPM (10/1000 µs) | 3000 W - Peak surge energy handling capacity per single non-repetitive event |
| TJ max | +150 °C - Maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance supporting reliable heat transfer to PCB copper |
| Polarity | Bi-directional - Symmetric clamping behavior eliminates polarity installation concerns |
Pinout & Package
DO-214AB (SMC J-Bend) surface-mount package with molded plastic case and matte tin lead-free plating. Cathode identification via color band on bi-directional variant is not applicable; device has no polarity marking as clamping is identical in both directions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically - no directional bias required for bi-directional clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| MSL Level 1 (J-STD-020) | Enables standard reflow assembly without moisture sensitivity concerns or baking requirements |
| UL 94V-0 flammability rating | Meets safety standards for enclosure-integrated power protection in certified end equipment |
| Strain relief structure | Reduces mechanical stress on solder joints during thermal cycling and board flexure |
| Low-profile SMC package | Minimizes board space while maintaining 3000 W surge capability - critical for compact power modules |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and bus voltage sensing circuits against IGBT switching transients and load dump events. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across DC-link or auxiliary supply rails to limit voltage excursions. Use Value: 26.0 V clamping at 115.4 A prevents damage to 3.3 V/5 V logic interfaces and isolated gate drivers during 3000 W surges. | Use Scenario: Input-stage surge suppression on -48 V DC distribution boards in central office and remote radio units. IC Role / Device Role / Timing Role: Primary overvoltage protection element absorbing lightning-induced common-mode transients on power input lines. Use Value: Bi-directional symmetry ensures consistent clamping regardless of transient polarity - essential for negative-rail telecom systems. |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: CAN bus line protection and microcontroller I/O rail stabilization in 12 V vehicle subsystems subject to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary-level TVS on low-voltage control signals downstream of primary fusing and filtering. Use Value: 150 °C junction rating supports under-hood placement near ECUs without derating, while 2.0 µA leakage preserves battery drain budgets. | Use Scenario: DC-side surge protection in solar string combiner boxes exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Parallel-connected TVS array across PV input terminals to shunt multi-kW transients into ground plane. Use Value: 3000 W PPPM rating enables single-device handling of Class III (IEC 61643-31) surge events without parallel stacking complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC16 | Unidirectional only; 16 V VRWM, 26.5 V VC @ 113 A; same DO-214AB package | Lacks bi-directional symmetry - requires correct orientation during placement and cannot protect AC-coupled or floating nodes | Select SAC16 only when polarity is fixed and cost sensitivity outweighs design flexibility |
| SMCJ16CA | Same electrical specs and bi-directionality; identical VRWM/VBR/VC ratings but lower PPPM (1500 W vs. 3000 W) | Insufficient for high-energy transients requiring full 3000 W rating - limited to lower-tier surge immunity classes | Choose SMCJ16CA only if system-level testing confirms 1500 W clamping meets IEC 61000-4-5 requirements |
Compared with SAC16 and SMCJ16CA, the SMDJ16CA delivers double the peak pulse power (3000 W), maintains true bi-directional clamping without orientation dependency, and sustains higher surge repetition resilience - making it the preferred choice for mission-critical industrial and telecom power protection where margin and layout simplicity are prioritized.
Availability
SMDJ16CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and renewable energy inverters requiring stable component supply across extended production lifecycles.
Supply support for SMDJ16CA 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 industrial, computing, and automotive markets.
The SMDJ series was engineered specifically for high-power transient suppression in harsh-environment applications - emphasizing rugged packaging, repeatable clamping, and compatibility with automated SMT assembly processes.
FAQ
What is the clamping voltage of SMDJ16CA at its rated peak pulse current?
The SMDJ16CA exhibits a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 115.4 A on a 10/1000 µs waveform. This value is measured under standardized test conditions per JEDEC and ensures predictable voltage limiting during surge events. The SMDJ16CA's 26.0 V clamping level protects downstream 3.3 V, 5 V, and 12 V circuitry when used with appropriate series impedance.
Is SMDJ16CA compatible with lead-free reflow soldering processes?
Yes, the SMDJ16CA is fully compatible with lead-free reflow soldering. It meets J-STD-020 Moisture Sensitivity Level 1 and withstands a maximum peak temperature of 260 °C. Its matte tin lead-free plating and DO-214AB package are qualified for standard Pb-free reflow profiles without popcorn cracking or delamination. The SMDJ16CA requires no pre-baking prior to assembly.
How does the bi-directional configuration of SMDJ16CA affect PCB layout?
The bi-directional configuration of SMDJ16CA eliminates polarity constraints during placement - either terminal may connect to any side of the protected node. This simplifies layout, avoids orientation errors, and enables symmetric placement across differential lines or floating grounds. Unlike unidirectional TVS diodes, the SMDJ16CA requires no cathode marking verification, reducing assembly risk and inspection overhead.
What is the maximum reverse leakage current for SMDJ16CA at its VRWM?
The SMDJ16CA specifies a maximum reverse leakage current (IR) of 2.0 µA at its 16.0 V reverse stand-off voltage (VRWM) and 25 °C ambient temperature. This low leakage preserves power budget integrity in always-on systems such as battery-backed controllers and remote sensors. The SMDJ16CA maintains this specification across its full operating temperature range (-55 °C to +150 °C), with minimal drift.
Can SMDJ16CA be used in parallel to increase surge current handling?
No, SMDJ16CA is not recommended for parallel connection to increase surge current handling. Due to minor VBR tolerances (17.80–19.70 V), paralleled units will share current unevenly, causing one device to absorb disproportionate energy and fail prematurely. For higher current requirements, select a higher-rated part such as SMDJ22CA or implement external current-sharing resistors - though the latter degrades clamping performance. The SMDJ16CA is optimized as a single-device solution for up to 115.4 A surges.
SMDJ16CA 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 115.4A
- 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
SMDJ16CA FAQ
1.How can I place an order for SMDJ16CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ16CA 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 SMDJ16CA reliable?
The price and inventory of SMDJ16CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ16CA is usually 5 days.
3.What payment methods are accepted for SMDJ16CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ16CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ16CA?
SMDJ16CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ16CA 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 SMDJ16CA?
For technical support, including SMDJ16CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ16CA requirements.
6.How does Aetrix verify that SMDJ16CA is sourced from the original manufacturer or authorized distributors?
All SMDJ16CA 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 SMDJ16CA meets industry standards.
7.What is the process for return or replacement of SMDJ16CA?
All SMDJ16CA units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ16CA, 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 SMDJ16CA part is unused and in its original packaging.
Return procedure for SMDJ16CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDJ16CA Tags
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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