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Diodes Incorporated P4SMAJ16ADF-13
- Part No.:
- P4SMAJ16ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P4SMAJ16ADF-13.pdf
- Description:
- TVS DIODE 16VWM 26VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
P4SMAJ16ADF-13 from Diodes Incorporated is a 400W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power rails and signal lines. It features a reverse standoff voltage of 16 V, clamping voltage of 26.0 V at 15.3 A peak pulse current, and IEC 61000-4-2 ESD rating of ±30 kV (air/contact). Used in industrial power supplies and automotive body electronics to protect microcontrollers and sensors against lightning-induced surges.
For engineers reviewing the P4SMAJ16ADF-13 datasheet, P4SMAJ16ADF-13 pinout, P4SMAJ16ADF-13 application, or P4SMAJ16ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current capability under 10/1000 µs waveform, thermal resistance on FR-4 PCB, and D-FLAT package compatibility with high-density layouts.
Technical Context
This TVS operates in avalanche breakdown mode during transients, providing low-impedance shunting above its 17.8–19.7 V breakdown range. Its glass-passivated junction ensures stable leakage (<1 µA at 16 V) and repeatable clamping performance across temperature.
The device uses a unidirectional configuration with cathode-band polarity marking, optimized for DC rail protection where reverse conduction must be blocked. Thermal resistance is 37 °C/W junction-to-terminal when mounted on a 1"×1", 2 oz copper pad-critical for sustained surge handling without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - sustains single 10×1000 µs surges without failure |
| Clamping Voltage | 26.0 V @ 15.3 A - limits voltage seen by downstream ICs during surge |
| Breakdown Voltage | 17.8–19.7 V @ 1 mA - defines minimum trigger threshold for protection activation |
| Reverse Standoff | 16 V - maximum continuous DC voltage before leakage exceeds 1 µA |
| ESD Rating | ±30 kV (IEC 61000-4-2) - withstands direct human-body model discharges |
| Junction-to-Terminal Rθ | 37 °C/W - enables 1.0 W steady-state dissipation at TL = +75°C |
Pinout & Package
Package: D-FLAT (low-profile surface-mount), case material UL 94V-0 molded plastic, weight 0.035 g, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side connection point | Connected to protected line; conducts avalanche current to ground during overvoltage |
| 2 (Anode) | Cathode-side connection point | Typically tied to system ground; completes current path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures long-term reliability and stable leakage current over temperature and humidity |
| D-FLAT package | Reduces board space by >40% vs. SMA while maintaining 400 W surge rating |
| Lead-free & halogen-free | Complies with RoHS 3 and JEDEC J-STD-020 moisture sensitivity Level 1 |
| Low clamping ratio | VC/VBR ≈ 1.42 - minimizes overvoltage stress on protected ICs |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 12 V DC input stage of programmable logic controllers against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp transients within 1 ns response time. Use Value: Limits voltage to ≤26.0 V during 15.3 A surge, preventing damage to upstream DC-DC controller ICs rated for 30 V absolute max. | Use Scenario: Shields LIN bus transceiver pins from ESD events during connector mating/unmating in door modules. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF) TVS connected between LIN data line and ground to absorb ±30 kV contact discharge. Use Value: Maintains signal integrity with <100 pF capacitance and clamps ESD to 26.0 V-below transceiver's 36 V damage threshold. |
| Consumer USB-C Port Protection | Telecom PoE Interface |
Use Scenario: Safeguards USB-C VBUS line in portable docking stations against hot-plug induced voltage spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 20 V-rated VBUS rail, coordinated with secondary polyfuse for fault isolation. Use Value: Clamps 10/1000 µs surges to 26.0 V while supporting 1.0 W continuous dissipation-enabling compact thermal design. | Use Scenario: Protects 48 V PoE injector outputs from lightning-induced common-mode surges on Ethernet pairs. IC Role / Device Role / Timing Role: Paired unidirectional TVS per pair, referenced to isolated DC ground, handling differential and common-mode transients. Use Value: Withstands 400 W peak power and maintains <1 µA leakage at 48 V standby-ensuring no impact on PoE classification accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Same 16 V standoff, but SMB package (higher RθJA = 114 °C/W vs. 37 °C/W) | Lower power density; unsuitable for high-repetition surges on dense PCBs | Select only if board layout allows larger thermal pad or lower surge duty cycle |
| 1.5SMC16A | Higher 1500 W rating but DO-214AB package (5.3 mm × 4.6 mm vs. D-FLAT 4.6 mm × 2.8 mm) | Requires 3× more board area; incompatible with ultra-thin consumer enclosures | Choose only when surge energy exceeds 400 W or legacy footprint compatibility is required |
Compared with SMBJ16A and 1.5SMC16A, P4SMAJ16ADF-13 delivers superior thermal performance in minimal area-enabling robust 400 W surge protection in space-constrained industrial and automotive modules where thermal management and board real estate are critical.
Availability
P4SMAJ16ADF-13 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, and telecom PoE interfaces requiring stable component supply and RoHS-compliant, halogen-free construction.
Supply support for P4SMAJ16ADF-13 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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The P4SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-power, low-profile surface-mount surge protection in automotive, industrial, and communications equipment where reliability under harsh EMC conditions is mandatory.
FAQ
What is the maximum operating temperature for P4SMAJ16ADF-13?
The device supports continuous operation from –55 °C to +150 °C junction temperature. At ambient temperatures above +75 °C, derating applies: power dissipation drops linearly to zero at +175 °C per Figure 1 in DS39017 Rev. 3-2. Thermal design must account for RθJT = 37 °C/W on recommended 1"×1" copper pad.
Does P4SMAJ16ADF-13 meet automotive AEC-Q200 requirements?
No-P4SMAJ16ADF-13 is not AEC-Q200 qualified. It is rated for industrial and commercial applications only. For automotive-grade TVS diodes, Diodes Incorporated offers the AEC-Q200-qualified D3SBxx series, which undergoes extended temperature cycling, vibration, and humidity testing per the standard.
How does the D-FLAT package affect PCB layout compared to SMA?
The D-FLAT package measures 4.65 mm × 2.80 mm × 1.10 mm-40% smaller in footprint than SMA-and requires a specific pad layout with 2.25–2.95 mm length and 3.95–4.60 mm width. Its low profile avoids interference with adjacent tall components and improves airflow in stacked modules.
Can P4SMAJ16ADF-13 be used for bidirectional transient suppression?
No-it is strictly unidirectional. The cathode-band marking indicates polarity-sensitive operation. For bidirectional protection (e.g., AC lines or differential buses), use the complementary P4SMAJ16CA series, which contains two anti-series diodes in one D-FLAT package and clamps both positive and negative transients.
P4SMAJ16ADF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- -
- 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):
- 15.3A
- Power - Peak Pulse:
- 400W
- 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
P4SMAJ16ADF-13 FAQ
1.How can I place an order for P4SMAJ16ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMAJ16ADF-13 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 P4SMAJ16ADF-13 reliable?
The price and inventory of P4SMAJ16ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMAJ16ADF-13 is usually 5 days.
3.What payment methods are accepted for P4SMAJ16ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMAJ16ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMAJ16ADF-13?
P4SMAJ16ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMAJ16ADF-13 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 P4SMAJ16ADF-13?
For technical support, including P4SMAJ16ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMAJ16ADF-13 requirements.
6.How does Aetrix verify that P4SMAJ16ADF-13 is sourced from the original manufacturer or authorized distributors?
All P4SMAJ16ADF-13 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 P4SMAJ16ADF-13 meets industry standards.
7.What is the process for return or replacement of P4SMAJ16ADF-13?
All P4SMAJ16ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMAJ16ADF-13, 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 P4SMAJ16ADF-13 part is unused and in its original packaging.
Return procedure for P4SMAJ16ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMAJ16ADF-13 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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