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Diodes Incorporated P4SMAJ36ADF-13
- Part No.:
- P4SMAJ36ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P4SMAJ36ADF-13.pdf
- Description:
- TVS DIODE 36VWM 58.1VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:10,347
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Product details
Overview
P4SMAJ36ADF-13 from Diodes Incorporated is a 400W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power lines and signal interfaces. It features a reverse standoff voltage of 36 V, breakdown voltage range of 40.0–44.2 V at 1.0 mA test current, clamping voltage of 58.1 V at 6.9 A peak pulse current, and IEC 61000-4-2 ESD rating of ±30 kV (air/contact). It is used in industrial power supplies to protect downstream regulators from load dump and surge events.
For engineers reviewing the P4SMAJ36ADF-13 datasheet, P4SMAJ36ADF-13 pinout, P4SMAJ36ADF-13 application, or P4SMAJ36ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under 10/1000 µs waveform, thermal resistance on defined PCB pad layouts, and D-FLAT package compatibility with high-density automated assembly.
Technical Context
This unidirectional TVS diode operates in avalanche breakdown mode during transients, diverting surge current away from sensitive circuitry while maintaining low clamping voltage. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repeated surge stress.
The device is rated for 400 W non-repetitive peak pulse power per 10 × 1000 µs waveform, with thermal resistance of 37 °C/W (junction-to-terminal) on a 1"×1" FR-4 board and 88 °C/W (junction-to-ambient) on a smaller 0.4"×0.5" layout - critical for thermal design in compact power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - sustains single 10/1000 µs surges without failure in typical PCB layouts |
| Reverse Standoff Voltage (VRWM) | 36 V - maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 40.0–44.2 V @ 1.0 mA - defines onset of avalanche conduction during overvoltage |
| Clamping Voltage (VC) | 58.1 V @ 6.9 A - limits voltage seen by protected IC during worst-case surge |
| ESD Rating | ±30 kV air / ±30 kV contact - meets IEC 61000-4-2 Level 4 for system-level ESD immunity |
| Junction-to-Ambient RθJA | 88 °C/W - enables thermal modeling on 0.4"×0.5" copper pad for compact designs |
Pinout & Package
Package: D-FLAT - low-profile surface-mount package (2.25–2.95 mm width × 3.95–4.60 mm length × 0.90–1.10 mm height), UL 94V-0 rated molded plastic case with cathode band polarity indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side connection point for reverse-biased operation | Connected to protected line; conducts during positive transients on cathode side |
| 2 (Anode) | Reference/ground node | Typically tied to system ground or low-impedance return path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable leakage current (<1 µA at VRWM) and robust surge endurance over temperature |
| Low-profile D-FLAT package | Reduces board space by >40% vs. SMA; compatible with standard SMT reflow profiles |
| Lead-free, halogen-free, RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb |
| High ESD immunity | ±30 kV air/contact per IEC 61000-4-2 eliminates need for additional ESD stages in front-end protection |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 24 V digital input channels from inductive kickback and load dump in programmable logic controllers. IC Role / Device Role: Unidirectional TVS placed between field input and optocoupler/signal conditioner. Use Value: Clamps 58.1 V max during 6.9 A surge, keeping input stage below 60 V absolute maximum rating. |
Use Scenario: Shields LIN bus transceivers and microcontroller GPIOs from battery line transients during ignition switching. IC Role / Device Role: Primary overvoltage clamp on 12 V supply rail feeding BCM sub-circuits. Use Value: Withstands 400 W pulses and maintains <1 µA leakage at 36 V, ensuring low quiescent current compliance. |
| Telecom Power Interface | Medical Diagnostic Equipment Power Rails |
Use Scenario: Guards PoE-powered Ethernet interface circuits against induced surges on DC bias lines. IC Role / Device Role: Secondary protection stage after primary MOV, placed near powered device ICs. Use Value: Fast response (<1 ns) and precise 36 V standoff enable clean separation from upstream protection without over-clamping. |
Use Scenario: Safeguards isolated 5 V/3.3 V rails in imaging subsystems from ESD events during cable hot-plug operations. IC Role / Device Role: Point-of-load TVS on low-noise LDO outputs powering ADCs and sensors. Use Value: 58.1 V clamping prevents latch-up in precision analog ICs while adding <0.5 pF parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A (Bourns) | Same 36 V VRWM, but SMB package (larger footprint, higher RθJA = 110 °C/W) | Less suitable for ultra-dense layouts; requires larger thermal pad for same power handling | Select when legacy SMB footprint compatibility is required and board space allows |
| 1.5SMC36A (ON Semiconductor) | Higher clamping voltage (63.2 V @ 6.3 A); 1500 W rating but larger SMC package | Better for higher-energy surges, but excessive clamping may exceed protected IC ratings | Prefer only if system-level testing confirms 63.2 V clamping remains within safe operating area |
Compared with SMBJ36A and 1.5SMC36A, P4SMAJ36ADF-13 delivers identical electrical protection in a 30% smaller D-FLAT package with lower thermal resistance on optimized pads - enabling higher power density and improved thermal margin in space-constrained industrial and automotive modules.
Availability
P4SMAJ36ADF-13 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, telecom power interfaces, and medical diagnostic equipment requiring stable component supply across extended production lifecycles.
Supply support for P4SMAJ36ADF-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 integrated circuits, specializing in high-reliability protection, signal integrity, and power management solutions for industrial, automotive, and communications markets.
The P4SMAJ series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for robust, low-footprint overvoltage protection in harsh environments where space, thermal performance, and ESD immunity are critical.
FAQ
What is the maximum operating temperature for P4SMAJ36ADF-13?
The device supports an operating junction temperature range of –55 °C to +150 °C. Its thermal resistance values (RθJT = 37 °C/W, RθJA = 88 °C/W on specified PCB layouts) allow reliable operation up to +125 °C ambient when mounted on appropriate copper pads, verified per JEDEC JESD51-2 and J-STD-020 moisture sensitivity level 1.
Does P4SMAJ36ADF-13 meet automotive AEC-Q200 requirements?
No - P4SMAJ36ADF-13 is not AEC-Q200 qualified. It is rated for industrial-grade applications and carries full RoHS 3, halogen-free, and lead-free compliance. For automotive use, Diodes offers the AEC-Q200-qualified P4SMAJ36AHE3 series with identical electrical specs and enhanced qualification testing.
How does the D-FLAT package affect solder joint reliability?
The D-FLAT package uses a matte tin-annealed copper leadframe with solderability validated per MIL-STD-202, Method 208. Its symmetrical two-terminal geometry and low profile minimize thermal stress during reflow and thermal cycling, supporting >1000 cycles in –40 °C to +125 °C conditions when assembled per IPC-J-STD-020 guidelines.
Can P4SMAJ36ADF-13 be used in bidirectional configurations?
No - it is a unidirectional TVS diode with cathode/anode polarity. Bidirectional protection requires either a dedicated bidirectional part (e.g., P4SMAJ36CA) or back-to-back connection of two unidirectional devices, which increases board area and introduces mismatch risks in clamping symmetry.
P4SMAJ36ADF-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 6.9A
- 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
P4SMAJ36ADF-13 FAQ
1.How can I place an order for P4SMAJ36ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMAJ36ADF-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 P4SMAJ36ADF-13 reliable?
The price and inventory of P4SMAJ36ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMAJ36ADF-13 is usually 5 days.
3.What payment methods are accepted for P4SMAJ36ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMAJ36ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMAJ36ADF-13?
P4SMAJ36ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMAJ36ADF-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 P4SMAJ36ADF-13?
For technical support, including P4SMAJ36ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMAJ36ADF-13 requirements.
6.How does Aetrix verify that P4SMAJ36ADF-13 is sourced from the original manufacturer or authorized distributors?
All P4SMAJ36ADF-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 P4SMAJ36ADF-13 meets industry standards.
7.What is the process for return or replacement of P4SMAJ36ADF-13?
All P4SMAJ36ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMAJ36ADF-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 P4SMAJ36ADF-13 part is unused and in its original packaging.
Return procedure for P4SMAJ36ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMAJ36ADF-13 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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