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Diodes Incorporated P6SMAJ16ADF
- Part No.:
- P6SMAJ16ADF
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ16ADF.pdf
- Description:
- TVS DIODE 16VWM 26VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:7,370
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Product details
Overview
P6SMAJ16ADF from Diodes Incorporated is a 600W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power lines and signal interfaces. It features a 16V reverse standoff voltage, 17.8–20.5V breakdown range at 1mA, 26.0V clamping voltage at 23.1A peak pulse current, and D-FLAT package for space-constrained PCB layouts - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the P6SMAJ16ADF datasheet, P6SMAJ16ADF pinout, P6SMAJ16ADF application, or P6SMAJ16ADF equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, thermal resistance under board-layout constraints, IPP derating above +25°C, and compliance with IEC 61000-4-5 Level 4 surge immunity requirements.
Technical Context
This unidirectional TVS operates as a silicon avalanche diode with glass-passivated junction, activated when reverse voltage exceeds VRWM = 16V. Its fast response time (<1 ps) ensures suppression before downstream ICs experience overstress during ESD or lightning-induced transients.
Thermal performance depends on PCB copper pad area: RθJA is 115°C/W on 1"×1" 2oz FR-4 (0.06"×0.09" pad) and 92°C/W on 0.4"×0.5" pad. Peak pulse power is rated at 600W per 10/1000µs waveform, with steady-state dissipation limited to 1.5W at TL = +75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10/1000µs surges up to this level without failure |
| Reverse Standoff Voltage (VRWM) | 16V - maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 17.8–20.5V @ 1mA - defines onset of avalanche conduction under transient stress |
| Clamping Voltage (VC) | 26.0V @ 23.1A - maximum voltage seen by protected circuit during specified surge |
| Peak Pulse Current (IPP) | 23.1A - peak current the device passes while clamping at 26.0V |
| Reverse Leakage (IR) | ≤1.0µA @ 16V - ensures minimal standby power loss in always-on systems |
| Package | D-FLAT - 2-pin low-profile surface-mount package (4.65 × 2.80 mm) with cathode band polarity marking |
Pinout & Package
Package: D-FLAT, molded plastic case (UL 94V-0), matte tin–annealed copper leadframe, cathode band marking. Dimensions: 4.65 mm × 2.80 mm × 1.10 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side reference terminal | Connected to protected line; conducts avalanche current toward ground during overvoltage |
| 2 (Anode) | Ground reference terminal | Connected to system ground plane; completes current path during transient clamp event |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables robust protection against IEC 61000-4-5 4kV surge (Level 4) on 12V/24V rails |
| Glass-passivated die construction | Improves long-term reliability and moisture resistance vs. epoxy-passivated alternatives |
| Low-profile D-FLAT package | Reduces PCB footprint by >40% vs. SMA packages while maintaining thermal performance |
| RoHS-compliant & halogen-free | Meets IPC-1752A material declaration requirements for automotive and industrial OEMs |
| Fast response time | Sub-nanosecond turn-on ensures clamping before sensitive logic or analog circuits are damaged |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24V digital input channels from load dump and inductive switching transients in programmable logic controllers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between field input and optocoupler input stage. Use Value: Clamps transients to ≤26.0V, keeping optocoupler LED forward voltage within safe operating range and preventing false triggering. |
Use Scenario: Safeguarding LIN bus transceiver power pins against battery line disturbances during cold-cranking or jump-start events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VCC rail upstream of transceiver IC. Use Value: Limits voltage excursion to 26.0V during 100ms load-dump pulses, avoiding transceiver latch-up or permanent damage. |
| DC Power Supply Input Stage | Smart Meter Communication Interface |
Use Scenario: Secondary surge protection on 12V auxiliary supply input after primary MOV-based front-end filtering. IC Role / Device Role / Timing Role: Fast-response secondary clamp absorbing residual energy missed by bulk MOV. Use Value: Provides precise 26.0V clamping with <1µA leakage, eliminating standby current penalty in energy-metering applications. |
Use Scenario: Protecting RS-485 transceiver VCC and data lines from ESD events during field installation or maintenance. IC Role / Device Role / Timing Role: Point-of-entry TVS on power rail feeding isolated RS-485 interface IC. Use Value: Delivers 600W surge handling with 23.1A IPP while fitting compact meter PCB layout constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Same electrical specs but SMA package (4.5 × 2.7 mm); RθJA = 125°C/W on standard pad | Higher thermal resistance limits usable surge repetition rate in high-ambient environments | Select when legacy SMA footprint compatibility is required and board space allows larger outline |
| 1.5SMC16A | 600W rating, same VRWM/VC, but SMC package (7.1 × 6.2 mm); higher IFSM = 100A | Greater surge endurance but 3× larger footprint and incompatible with D-FLAT land pattern | Choose for high-repetition surge environments where PCB area permits larger package |
Compared with SMAJ16A and 1.5SMC16A, P6SMAJ16ADF delivers identical electrical protection performance in a 35% smaller footprint and lower thermal resistance than SMA, making it optimal for space- and thermally constrained industrial and automotive PCBs where D-FLAT mounting is supported.
Availability
P6SMAJ16ADF is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and DC power supply input stages requiring stable component supply across extended product lifecycles.
Supply support for P6SMAJ16ADF 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
P6SMAJ16ADF belongs to the P6SMAJ series of 600W surface-mount TVS diodes, engineered specifically for compact, high-efficiency overvoltage protection in space-constrained power and interface circuits.
FAQ
What is the maximum clamping voltage of P6SMAJ16ADF under surge conditions?
The maximum clamping voltage (VC) is 26.0V at a peak pulse current (IPP) of 23.1A, measured per the 10 × 1000µs waveform defined in REA standards. This value is guaranteed across temperature and represents the highest voltage imposed on the protected circuit during worst-case transient events.
Can P6SMAJ16ADF be used in bidirectional configurations?
No - P6SMAJ16ADF is a unidirectional TVS diode with cathode-anode polarity. It conducts only during reverse overvoltage events. For AC or bidirectional protection, a dedicated bidirectional part such as P6SMBJ16CA must be used, as this device lacks symmetrical breakdown characteristics.
How does PCB layout affect the thermal performance of P6SMAJ16ADF?
Thermal resistance varies significantly with copper pad size: RθJA is 115°C/W on a 1"×1" 2oz FR-4 pad but improves to 92°C/W on a 0.4"×0.5" optimized pad. Larger pads reduce junction temperature rise during repeated surges, directly extending device lifetime and surge-handling capability.
Is P6SMAJ16ADF compliant with automotive AEC-Q200 stress testing?
No - P6SMAJ16ADF is not AEC-Q200 qualified. It meets industrial-grade reliability standards and RoHS/halogen-free requirements, but automotive applications requiring AEC-Q200 certification should use Diodes' automotive-qualified equivalents such as the AEC-Q200–rated D3SBxx series TVS diodes.
P6SMAJ16ADF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- SMAJ
- Packaging:
- Cut Tape (CT)
- 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):
- 23.1A
- Power - Peak Pulse:
- 600W
- 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:
- D-Flat
P6SMAJ16ADF FAQ
1.How can I place an order for P6SMAJ16ADF through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ16ADF 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 P6SMAJ16ADF reliable?
The price and inventory of P6SMAJ16ADF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ16ADF is usually 5 days.
3.What payment methods are accepted for P6SMAJ16ADF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ16ADF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ16ADF?
P6SMAJ16ADF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ16ADF 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 P6SMAJ16ADF?
For technical support, including P6SMAJ16ADF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ16ADF requirements.
6.How does Aetrix verify that P6SMAJ16ADF is sourced from the original manufacturer or authorized distributors?
All P6SMAJ16ADF 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 P6SMAJ16ADF meets industry standards.
7.What is the process for return or replacement of P6SMAJ16ADF?
All P6SMAJ16ADF units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ16ADF, 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 P6SMAJ16ADF part is unused and in its original packaging.
Return procedure for P6SMAJ16ADF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ16ADF Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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