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Taiwan Semiconductor Corporation SMDJ16A
- Part No.:
- SMDJ16A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ16A.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,283
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Product details
Overview
SMDJ16A from Taiwan Semiconductor is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 16V working stand-off voltage (VWM), 17.8–19.7V breakdown voltage (VBR), and 26.0V clamping voltage (VC) at 115.4A peak pulse current. It protects power rails and I/O lines in industrial motor drives against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMDJ16A datasheet, SMDJ16A pinout, SMDJ16A application, or SMDJ16A equivalent, key selection criteria include clamping performance under 10/1000μs surge, junction temperature derating above 25°C, unidirectional polarity marking, and compatibility with automated SMT placement per J-STD-020 Level 1 moisture sensitivity.
Technical Context
The SMDJ16A uses a glass-passivated silicon junction to achieve sub-1.0ps response time and stable clamping across repetitive transients. Its single-die construction supports unidirectional conduction only, with cathode band polarity marking and 3.5V forward voltage at 100A.
Thermal design relies on RθJA = 75°C/W and RθJL = 15°C/W, enabling operation up to +175°C junction temperature. It meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements for high-reliability PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR @ IT=1mA | 17.8–19.7 V - Verified breakdown threshold ensuring reliable turn-on during ESD or load-switching events |
| VC @ IPPM=115.4A | 26.0 V - Clamped voltage limiting downstream IC stress during 10/1000μs surges |
| PPK | 3000 W - Peak pulse power handling capability per single non-repetitive 1ms event |
| TJ max | +175 °C - Maximum junction temperature supporting operation in enclosed industrial enclosures |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 7.11 × 6.22 mm footprint and matte tin leads |
Pinout & Package
DO-214AB (SMC) package with cathode band marking on one end; two-terminal device with anode and cathode terminals only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to ground or low-side return path in unidirectional TVS configuration |
| Cathode | Current exit point in forward bias; marked with band | Connected to protected line (e.g., 12V rail or RS-485 bus) to clamp positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Clamping voltage stability | 26.0 V at 115.4 A ensures predictable overvoltage protection without overshoot beyond system tolerance |
| Glass passivation | Enables consistent VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| ISO 7637-2 compliance | Validated for automotive-grade load-dump and inductive switching immunity (Pulse 1/2a/2b/3a/3b) |
| J-STD-020 Level 1 | Zero bake requirement prior to reflow, supporting standard lead-free solder profiles without moisture-related popcorning |
Applications
| Industrial Motor Drive Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Suppressing inductive kickback from 24V solenoid drivers and relay coils in PLC output modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between coil supply and ground to clamp reverse EMF spikes. Use Value: Limits voltage excursion to ≤26.0 V, preventing damage to driving MOSFETs rated for 30V drain-source breakdown. | Use Scenario: Protecting LIN bus transceivers from battery line transients during ignition and load dump. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBAT-supplied LIN node input to absorb ISO 7637-2 Pulse 2a/3b energy. Use Value: Maintains signal integrity by clamping within 1.0 ps, avoiding data corruption during 100V/50ms pulses. |
| Telecom Power Input Stage | Industrial Ethernet PHY Interface |
Use Scenario: Guarding 48V DC input of PoE-powered switches against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input rail upstream of DC-DC converter. Use Value: Absorbs 3000W peak pulse without failure, preserving downstream regulator and controller ICs. | Use Scenario: Shielding RJ45 magnetics secondary side from ESD and fast transients coupled via Ethernet cable. IC Role / Device Role / Timing Role: Secondary-side TVS on PHY differential pair lines (TX+/TX−, RX+/RX−). Use Value: Delivers <1.0ps response and <26.0V clamping to meet IEC 61000-4-2 Level 4 (15kV air) immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC16 | Same 16V VWM and DO-214AB package; lower PPK (1500W) and higher VC (30.0V) | Limited to lower-energy transients; not suitable for ISO 7637-2 Pulse 1 or 2b | Select when cost sensitivity outweighs peak surge margin and clamping tightness |
| SMCJ16A | Identical electrical specs and DO-214AB package; manufactured by Vishay with same VBR/VC/PPK ratings | No functional difference; qualified for identical automotive and industrial use cases | Drop-in alternative where dual-sourcing or extended lifecycle support is required |
Compared with SAC16, the SMDJ16A delivers 100% higher peak power handling and 4V tighter clamping-critical for protecting 24V systems with narrow voltage margins. Against SMCJ16A, it offers identical protection performance but differs in manufacturer qualification and traceability documentation scope.
Availability
SMDJ16A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power inputs, and industrial Ethernet PHY interfaces requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMDJ16A 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1979.
The SMDJ series was developed specifically for high-power, surface-mount transient suppression in harsh environments-emphasizing robust clamping, automated assembly compatibility, and AEC-Q200 readiness for automotive subsystems.
FAQ
What is the maximum clamping voltage of the SMDJ16A under specified test conditions?
The SMDJ16A has a maximum clamping voltage (VC) of 26.0 V when subjected to a 10/1000 μs waveform with a peak pulse current (IPPM) of 115.4 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events. The SMDJ16A maintains this clamping performance consistently due to its glass-passivated junction and optimized die geometry.
Is the SMDJ16A suitable for bidirectional transient suppression?
No, the SMDJ16A is unidirectional only. Its marking code "PEP" and cathode band indicate polarity-sensitive operation. For bidirectional protection at 16V standoff, the SMDJ16CA variant must be used. Using the SMDJ16A in reverse-biased configurations risks permanent breakdown, as it lacks symmetrical avalanche characteristics. Always verify polarity alignment during PCB layout for the SMDJ16A.
What is the moisture sensitivity level (MSL) rating for the SMDJ16A?
The SMDJ16A is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions (<30°C / 60% RH) without baking prior to reflow soldering. This eliminates pre-conditioning steps in standard SMT lines and supports immediate placement after tape-and-reel unpacking-critical for high-throughput manufacturing of the SMDJ16A.
Does the SMDJ16A meet automotive transient immunity standards?
Yes, the SMDJ16A meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load removal), Pulse 2b (supply line interruption), Pulse 3a (capacitive coupling), and Pulse 3b (ground noise). Its 3000W peak power rating and sub-1.0ps response ensure robust immunity in 12V/24V automotive subsystems, including BCMs and body electronics where the SMDJ16A is commonly deployed.
What is the thermal resistance from junction to ambient (RθJA) for the SMDJ16A?
The SMDJ16A has a typical junction-to-ambient thermal resistance (RθJA) of 75°C/W under standard JEDEC test conditions (single device on 1-inch² copper pad). This value guides heatsinking decisions: at 3000W peak power, even brief surges cause rapid junction heating, so board-level copper area and airflow must be designed to avoid exceeding the +175°C maximum junction temperature. Derating curves in the SMDJ16A datasheet define safe operating limits above 25°C ambient.
SMDJ16A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMDJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ16A FAQ
1.How can I place an order for SMDJ16A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ16A 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 SMDJ16A reliable?
The price and inventory of SMDJ16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ16A is usually 5 days.
3.What payment methods are accepted for SMDJ16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ16A?
SMDJ16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ16A 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 SMDJ16A?
For technical support, including SMDJ16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ16A requirements.
6.How does Aetrix verify that SMDJ16A is sourced from the original manufacturer or authorized distributors?
All SMDJ16A 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 SMDJ16A meets industry standards.
7.What is the process for return or replacement of SMDJ16A?
All SMDJ16A units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ16A, 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 SMDJ16A part is unused and in its original packaging.
Return procedure for SMDJ16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDJ16A Tags
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