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Diodes Incorporated P6SMAJ40ADF-13
- Part No.:
- P6SMAJ40ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ40ADF-13.pdf
- Description:
- TVS DIODE 40VWM 64.5VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:9,249
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Product details
Overview
P6SMAJ40ADF-13 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 reverse standoff voltage of 40.0 V, clamping voltage of 64.5 V at 9.3 A peak pulse current, and fast response time under 1.0 ps. Used in industrial power supplies and automotive body control modules to protect downstream ICs from ESD and lightning-induced surges.
For engineers reviewing the P6SMAJ40ADF-13 datasheet, P6SMAJ40ADF-13 pinout, P6SMAJ40ADF-13 application, or P6SMAJ40ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, thermal resistance under PCB layout constraints, IPP derating above +25°C ambient, and D-FLAT package solderability per MIL-STD-202.
Technical Context
This TVS operates as a unidirectional avalanche diode with cathode-anode polarity indicated by a band. Its glass-passivated die ensures stable breakdown characteristics and low leakage (<1.0 µA at VRWM). The device responds to 10/1000 µs transients per REA standard, delivering precise clamping without follow-on conduction.
Thermal performance depends on PCB copper pad area: RθJA is 92 °C/W on a 0.4" × 0.5" 2 oz copper pad and 115 °C/W on a 1" × 1" pad. Junction-to-terminal resistance is 57 °C/W (small pad) or 64 °C/W (large pad), directly impacting power dissipation capability during repetitive surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - Sustains single 10/1000 µs surge without failure under defined thermal conditions |
| Reverse Standoff Voltage | 40.0 V - Maximum continuous DC or RMS voltage before significant leakage begins |
| Clamping Voltage | 64.5 V @ 9.3 A - Maximum voltage seen by protected circuit during specified transient |
| Breakdown Voltage | 44.4–51.1 V @ 1.0 mA - Confirmed avalanche initiation range, ensuring reliable turn-on margin |
| Leakage Current | ≤1.0 µA @ 40.0 V - Negligible standby power loss and minimal impact on high-impedance sensing nodes |
| Package | D-FLAT - Low-profile (1.10 mm max height), surface-mountable, UL 94V-0 rated plastic case |
Pinout & Package
The D-FLAT package is a 2-terminal surface-mount device with cathode identified by a band. Terminals are matte tin annealed over copper leadframe, solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded) | Cathode | Connected to system ground or lower-potential rail; carries surge current into ground path |
| 2 | Anode | Connected to protected line (e.g., 36–40 V supply rail); voltage referenced to cathode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Ensures long-term stability of VBR and low parameter drift across temperature and lifetime |
| Low-profile D-FLAT package | Reduces board space by >40% vs. SMA; enables routing under adjacent components in dense layouts |
| 600 W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4 kV line-earth) surge immunity with margin |
| RoHS & halogen-free compliance | Meets EU RoHS 2 and green manufacturing requirements (Br+Cl <1500 ppm, Sb <1000 ppm) |
Applications
| Industrial Power Input Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 48 V DC input stage of programmable logic controller exposed to 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 before they reach DC-DC converter ICs. Use Value: Clamps 10/1000 µs surges to ≤64.5 V, keeping downstream 65 V-rated MOSFETs and controllers within safe operating area. | Use Scenario: LIN bus line protection in door module where ESD from human contact must not disrupt microcontroller communication. IC Role / Device Role / Timing Role: TVS shunts ESD energy away from LIN transceiver's TX/RX pins during ±8 kV contact discharge. Use Value: Sub-1 ns response limits voltage overshoot to <65 V, preventing latch-up or damage to 5 V tolerant transceiver inputs. |
| Telecom Remote Radio Unit | Renewable Energy Charge Controller |
Use Scenario: DC power feed (36–44 V) to outdoor RRUs subject to induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main DC input, coordinated with upstream fuse and downstream LC filter. Use Value: 600 W rating handles multiple 10/1000 µs surges without degradation; D-FLAT footprint allows placement near connector entry point. | Use Scenario: Battery-side input of solar charge controller connected to 48 V nominal battery bank with possible reverse polarity connection events. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional TVS guards against positive transients only, reducing cost and capacitance. Use Value: 40 V VRWM matches battery float voltage; 64.5 V VC ensures MPPT controller ICs (rated to 65 V) remain undamaged during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40A-13-F | Same 40 V VRWM, but SMB package (higher RθJA = 110 °C/W), 600 W rating, slightly higher VC (65.5 V) | Larger footprint; less suitable for ultra-dense layouts where D-FLAT height <1.1 mm is critical | Select when existing SMB land pattern is fixed and thermal margin permits higher junction temperature rise |
| 1.5SMC40A | Same electrical specs but DO-214AB (SMC) package; 1.5 kW rating, larger size, RθJA ≈ 60 °C/W | Higher power handling but 3× board area; used where surge repetition rate demands superior thermal dissipation | Choose for high-duty-cycle surge environments (e.g., utility metering) where sustained 600 W pulses occur frequently |
Compared with SMBJ40A-13-F and 1.5SMC40A, P6SMAJ40ADF-13 delivers identical clamping performance in the smallest footprint, enabling compact designs where board space and profile are constrained-without sacrificing surge robustness or thermal reliability under single-event conditions.
Availability
P6SMAJ40ADF-13 is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, telecom remote radio units, and renewable energy charge controllers requiring stable component supply and consistent surge performance across production batches.
Supply support for P6SMAJ40ADF-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and communications markets.
The P6SMAJ series belongs to Diodes' transient voltage suppressor product line, engineered specifically for high-power, low-profile surface-mount surge protection in space-constrained DC power and interface applications.
FAQ
What is the maximum allowable junction temperature for P6SMAJ40ADF-13 during surge events?
The device is rated for operation from –55 °C to +150 °C. During a single 10/1000 µs pulse, junction temperature rise is calculated using RθJT = 57 °C/W (small pad) or 64 °C/W (large pad). With 600 W peak power, ΔTJ reaches ~34,200 °C/W × W - but actual thermal mass limits instantaneous rise; sustained operation requires limiting average power to maintain TJ <150 °C.
Does P6SMAJ40ADF-13 meet IEC 61000-4-2 and IEC 61000-4-5 standards?
Yes - its 600 W peak pulse rating and sub-nanosecond response enable compliance with IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and IEC 61000-4-5 Level 4 (4 kV line-earth, 2 kV line-line) when properly implemented with appropriate PCB layout and coordination with upstream fusing.
Can P6SMAJ40ADF-13 be used in bidirectional configurations?
No - it is a unidirectional TVS diode with cathode-anode polarity. For bidirectional protection, two devices must be connected in series opposing configuration, or a dedicated bidirectional part such as P6SMBJ40CA-13-F should be selected instead.
What is the typical total capacitance of P6SMAJ40ADF-13 at 0 V bias?
Capacitance is not specified in the DS38930 datasheet for this series. Diodes Incorporated does not publish CT values for the P6SMAJ family; for high-speed data line protection where capacitance matters (e.g., USB, CAN), consult the P4SMAJ or SP1003 series, which provide explicit 1 MHz capacitance ratings.
P6SMAJ40ADF-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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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
P6SMAJ40ADF-13 FAQ
1.How can I place an order for P6SMAJ40ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ40ADF-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 P6SMAJ40ADF-13 reliable?
The price and inventory of P6SMAJ40ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ40ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ40ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ40ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ40ADF-13?
P6SMAJ40ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ40ADF-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 P6SMAJ40ADF-13?
For technical support, including P6SMAJ40ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ40ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ40ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ40ADF-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 P6SMAJ40ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ40ADF-13?
All P6SMAJ40ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ40ADF-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 P6SMAJ40ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ40ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ40ADF-13 Tags
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