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Alpha & Omega Semiconductor Inc. SMDJ160CA
- Part No.:
- SMDJ160CA
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ160CA.pdf
- Description:
- 1CH 160V BIDIRECTIONAL 3000W SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,321
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Product details
Overview
SMDJ160CA from Alpha & Omega Semiconductor is a bi-directional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 160 V reverse standoff voltage (VRWM), 178–197 V breakdown voltage (VBR), 259 V maximum clamping voltage at peak pulse current, and 3000 W peak pulse power dissipation on 10/1000 µs waveform - deployed in industrial motor drives to protect IGBT gate drivers from inductive switching transients.
For engineers reviewing the SMDJ160CA datasheet, pinout, applications, or equivalent options, key selection criteria include bidirectional clamping capability, DO-214AB package thermal performance (RθJA = 75 °C/W), low leakage (<2 µA @ VRWM), fast sub-1 ps response time, and compliance with J-STD-020 MSL Level 1 reflow requirements.
Technical Context
The SMDJ160CA operates as a silicon avalanche diode with glass-passivated junction, enabling symmetrical clamping in both polarities without external biasing. Its bi-directional architecture eliminates need for polarity-aware layout, and its 0.01% duty cycle rating supports infrequent but high-magnitude surges such as lightning-induced transients or ESD events.
Thermal design relies on DO-214AB mounting on 8.0 mm × 8.0 mm copper pads per terminal, delivering RθJL = 15 °C/W and enabling sustained operation up to TJ = 150 °C. The device's low-profile, strain-relieved leadframe ensures mechanical robustness during board flexure and thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 160 V - Maximum continuous reverse operating voltage before clamping initiates; defines system DC bus voltage margin. |
| VBR (min/max) | 178–197 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on above nominal bus voltage. |
| Vc @ IPPM | 259 V - Clamped voltage at 3000 W peak pulse; determines protected circuit's maximum transient overvoltage exposure. |
| PPPM | 3000 W - Peak pulse power on 10/1000 µs waveform; qualifies for IEC 61000-4-5 Level 4 surge immunity testing. |
| IR @ VRWM | <2 µA - Reverse leakage at rated standoff; negligible power loss and minimal impact on high-impedance sensing nodes. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive or enclosed industrial enclosures. |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on standard PCB; informs heatsinking requirements for repeated surge events. |
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 applies only to unidirectional variants; SMDJ160CA is bi-directional and has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bi-directional avalanche terminals | Interchangeable terminals - clamps symmetrically for positive or negative transients; no orientation required during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and improved humidity resistance versus epoxy-passivated alternatives. |
| Built-in strain relief | Reduces mechanical stress at lead-to-body interface during thermal expansion or board flexure, improving long-term reliability. |
| MSL Level 1 (260 °C peak) | Supports single-reflow assembly without moisture sensitivity concerns - no baking required prior to SMT placement. |
| UL 94V-0 flammability rating | Plastic housing meets stringent fire-safety standards for industrial and transportation equipment enclosures. |
| Fast response time <1.0 ps | Clamps before transient energy couples into downstream ICs - critical for protecting sensitive gate drivers and microcontrollers. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of IGBT gate driver circuits against voltage spikes caused by rapid current commutation in 3-phase inverters. IC Role / Device Role / Timing Role: Bi-directional TVS clamping element placed across gate-emitter terminals to limit transient overvoltage to safe levels. Use Value: Prevents gate oxide rupture and latch-up in SiC/GaN drivers by limiting VGE excursion to ≤259 V during 3000 W surges. | Use Scenario: Surge suppression on -48 V DC telecom power distribution lines exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary line-level TVS device mounted at power entry point to shunt surge current before reaching DC/DC converters. Use Value: Maintains uninterrupted operation during IEC 61000-4-5 2 kV/12 Ω surge tests due to 160 V VRWM and 259 V clamping. |
| Renewable Energy Inverters | Automotive Body Control Modules |
Use Scenario: DC-link overvoltage protection in solar string inverters subjected to grid-switching transients and capacitor discharge events. IC Role / Device Role / Timing Role: High-power TVS connected between PV+ and PV− inputs to clamp differential-mode surges up to 3000 W. Use Value: Enables compliance with UL 1741 SA rapid shutdown requirements by limiting fault voltage rise during arc-fault conditions. | Use Scenario: CAN bus and LIN bus line protection in BCMs exposed to load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bi-directional TVS placed across data pair to suppress ±100 V/50 ms load-dump coupling onto communication lines. Use Value: Preserves signal integrity and prevents transceiver latch-up with <2 µA leakage and symmetrical clamping down to −259 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC160CA (Littelfuse) | Same VRWM (160 V), identical DO-214AB package, but lower PPPM (2500 W) and higher Vc (275 V). | Limited to lower-energy surge environments; not qualified for IEC 61000-4-5 Level 4 testing. | Select when cost sensitivity outweighs peak power margin and clamping voltage tightness. |
| 1.5KE160CA (ON Semiconductor) | Higher RθJA (100 °C/W), axial-leaded DO-15 package, same electrical specs but incompatible with automated SMT assembly. | Requires manual insertion or wave soldering; unsuitable for high-density PCBs or reflow-only production. | Choose only for legacy through-hole designs where board real estate and assembly process allow. |
Compared with SAC160CA and 1.5KE160CA, the SMDJ160CA delivers superior thermal performance (RθJA = 75 °C/W), full SMT compatibility, and tighter clamping (259 V vs. 275 V), making it optimal for space-constrained, high-reliability industrial power systems requiring repeatable 3000 W surge handling.
Availability
SMDJ160CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and renewable energy inverters requiring stable component supply, RoHS-compliant green packaging, and traceable sourcing for long-lifecycle programs.
Supply support for SMDJ160CA 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 modules for industrial, computing, and consumer applications.
The SMDJ series is engineered specifically for high-power, surface-mount transient suppression in harsh environments - emphasizing low clamping voltage, robust thermal design, and MSL Level 1 manufacturability.
FAQ
What is the clamping voltage of the SMDJ160CA at its rated peak pulse current?
The SMDJ160CA exhibits a maximum clamping voltage (Vc) of 259 V when subjected to its peak pulse current (IPPM) on a 10/1000 µs waveform. This value is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads per terminal and defines the upper voltage limit imposed on protected circuitry during a 3000 W transient event. The SMDJ160CA maintains this clamping performance consistently across its operational temperature range.
Is the SMDJ160CA suitable for bidirectional surge protection without polarity considerations?
Yes, the SMDJ160CA is explicitly designed as a bi-directional TVS diode, indicated by the "CA" suffix. Its symmetrical avalanche structure allows it to clamp transients of either polarity identically - eliminating the need for orientation during PCB placement. Unlike unidirectional variants (e.g., SMDJ160A), the SMDJ160CA has no cathode band and functions equivalently across both terminals, making it ideal for AC-coupled or floating signal lines.
What is the maximum junction temperature rating for the SMDJ160CA, and how does it affect thermal design?
The SMDJ160CA has a maximum junction temperature (TJ max) of +150 °C, enabling reliable operation in high-ambient environments such as enclosed motor drive cabinets or under-hood automotive locations. Its thermal resistance values - RθJA = 75 °C/W and RθJL = 15 °C/W - require adherence to JEDEC-standard 8.0 mm × 8.0 mm copper pad layouts to achieve rated power dissipation. Exceeding TJ max risks parametric shift and accelerated wear-out.
Does the SMDJ160CA meet industry-standard moisture sensitivity and reflow requirements?
Yes, the SMDJ160CA is rated MSL Level 1 per J-STD-020, with a maximum reflow peak temperature of 260 °C. Its matte tin lead-free plating and moisture-resistant molding compound eliminate the need for pre-baking, supporting standard Pb-free reflow profiles in high-volume SMT lines. This qualification ensures consistent solder joint integrity and avoids popcorning or delamination during assembly.
How does the SMDJ160CA compare to older through-hole TVS diodes like 1.5KE160CA in terms of PCB integration?
The SMDJ160CA uses the DO-214AB (SMC) surface-mount package, enabling automated pick-and-place, higher board density, and improved thermal coupling to PCB copper compared to axial-leaded 1.5KE160CA in DO-15. Its J-bend leads provide mechanical strain relief absent in radial leads, and its lower RθJA (75 vs. 100 °C/W) supports higher surge repetition rates. The SMDJ160CA thus offers superior manufacturability and thermal performance for modern compact power systems.
SMDJ160CA 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):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 11.6A
- 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
SMDJ160CA FAQ
1.How can I place an order for SMDJ160CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ160CA 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 SMDJ160CA reliable?
The price and inventory of SMDJ160CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ160CA is usually 5 days.
3.What payment methods are accepted for SMDJ160CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ160CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ160CA?
SMDJ160CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ160CA 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 SMDJ160CA?
For technical support, including SMDJ160CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ160CA requirements.
6.How does Aetrix verify that SMDJ160CA is sourced from the original manufacturer or authorized distributors?
All SMDJ160CA 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 SMDJ160CA meets industry standards.
7.What is the process for return or replacement of SMDJ160CA?
All SMDJ160CA units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ160CA, 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 SMDJ160CA part is unused and in its original packaging.
Return procedure for SMDJ160CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDJ160CA Tags
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