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Diodes Incorporated P6SMAJ26ADF-13
- Part No.:
- P6SMAJ26ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ26ADF-13.pdf
- Description:
- TVS DIODE 26VWM 42.1VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:6,949
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Product details
Overview
P6SMAJ26ADF-13 from Diodes Incorporated is a 600W 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 26 V, clamping voltage of 42.1 V at 14.2 A peak pulse current, and fast response time under 1.0 ps, deployed in industrial power supplies and automotive ECUs.
For engineers reviewing the P6SMAJ26ADF-13 datasheet, P6SMAJ26ADF-13 pinout, P6SMAJ26ADF-13 application, or P6SMAJ26ADF-13 equivalent, key selection criteria include clamping ratio (VC/VRWM = 1.62), thermal resistance (57 °C/W on optimized pad), IEC 61000-4-2 ESD rating (±30 kV air), and D-FLAT package compatibility with high-density PCB layouts.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds 28.9 V (min breakdown) and fully clamps within nanoseconds to limit transients to ≤42.1 V at 14.2 A (10/1000 µs waveform). Its glass-passivated junction ensures stable leakage (<1 µA at 26 V) and long-term reliability under repeated surge stress.
The device uses a low-inductance D-FLAT package with cathode-band polarity marking and is rated for operation from –55 °C to +150 °C. Thermal performance is validated on FR-4 boards with two copper pad configurations: RθJA = 92 °C/W (0.4" × 0.5" pad) and RθJT = 57 °C/W - critical for sustained surge duty cycles up to 4 pulses/minute.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - sustains single 10/1000 µs surges without failure under defined board thermal conditions |
| Reverse Standoff Voltage (VRWM) | 26 V - maximum continuous DC operating voltage before significant leakage begins |
| Clamping Voltage (VC) | 42.1 V @ 14.2 A - limits transient voltage seen by downstream ICs during surge events |
| Breakdown Voltage (VBR) | 28.9–33.2 V @ 1 mA - defines precise avalanche initiation range for predictable protection threshold |
| Leakage Current (IR) | ≤1.0 µA @ 26 V - ensures minimal standby power loss and no interference with low-power circuits |
| Package | D-FLAT - 2-pin, low-profile (1.1 mm max height), surface-mount package optimized for space-constrained designs |
Pinout & Package
The P6SMAJ26ADF-13 is housed in a 2-terminal D-FLAT package with cathode band marking. Terminals are matte tin annealed over copper leadframe, solderable per MIL-STD-202 Method 208.
| 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 clamping path and establishes reference for VRWM |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power rating | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) in compact footprint |
| Glass passivated die construction | Improves humidity resistance and long-term stability of breakdown voltage under thermal cycling |
| Low-profile D-FLAT package | Reduces board area by >40% vs. SMA; supports automated placement and reflow in high-volume manufacturing |
| RoHS-compliant & halogen-free | Meets IPC-1752A material declaration requirements and EU Directive 2011/65/EU without exemptions |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 24 V DC input stage of programmable logic controllers against load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed upstream of DC-DC converter input. Use Value: Limits transient voltage to 42.1 V, preventing damage to 36 V-rated input capacitors and controller ICs. |
Use Scenario: Shields LIN bus transceiver supply rail from battery voltage spikes during alternator regulation faults. IC Role / Device Role / Timing Role: Standby protection element connected between VBAT and GND, active only during overvoltage events. Use Value: Withstands 60 A surge (8.3 ms half-sine) while maintaining <1 µA leakage at nominal 12 V operation. |
| Telecom Remote Radio Unit | Smart Meter Communication Interface |
Use Scenario: Guards RS-485 transceiver power pins against induced lightning surges on outdoor cable runs. IC Role / Device Role / Timing Role: Primary clamping device on +3.3 V and +5 V bias rails feeding PHY ICs. Use Value: Achieves clamping ratio of 1.62 (42.1 V / 26 V), minimizing stress on 5 V tolerant interface ICs. |
Use Scenario: Protects HPLC (High-Speed Power Line Communication) modem supply against grid switching transients. IC Role / Device Role / Timing Role: Secondary protection stage after MOV, providing precise low-clamp voltage for sensitive analog front-end. Use Value: Delivers 14.2 A peak pulse current handling with 57 °C/W junction-to-terminal thermal resistance for reliable field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ26A-13-F | Same 26 V VRWM and 42.1 V VC, but SMA package (higher RθJA = 115 °C/W) and higher leakage (5 µA) | Larger footprint; less suitable for thermally constrained or ultra-low-leakage designs | Select when legacy SMA layout exists and thermal derating margin is ≥25% |
| 1.5SMC27A | Higher 27 V VRWM, 45.7 V VC, 1500 W rating, DO-214AB package - larger size and different clamping behavior | Used where higher surge energy absorption is required, not direct replacement due to voltage shift and layout incompatibility | Choose only when upgrading protection level beyond 600 W and board space allows DO-214AB footprint |
Compared with SMAJ26A-13-F and 1.5SMC27A, the P6SMAJ26ADF-13 offers superior thermal performance (57 °C/W vs. 115 °C/W), lower leakage (1 µA vs. 5 µA), and smaller D-FLAT footprint - making it optimal for space- and thermal-sensitive 24 V industrial systems.
Availability
P6SMAJ26ADF-13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and smart meter communication interfaces requiring stable component supply across multi-year production cycles.
Supply support for P6SMAJ26ADF-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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
The P6SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability, surface-mount overvoltage protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum operating temperature for P6SMAJ26ADF-13?
The P6SMAJ26ADF-13 is rated for junction and storage temperatures from –55 °C to +150 °C. Its thermal resistance values (RθJT = 57 °C/W, RθJA = 92 °C/W) are measured on specified FR-4 PCB pads, enabling accurate thermal modeling for ambient temperatures up to +125 °C in real-world layouts.
Does P6SMAJ26ADF-13 meet automotive qualification standards?
The P6SMAJ26ADF-13 is AEC-Q200 stress-tested and compliant per Diodes Incorporated's internal qualification program. While not AEC-Q200 certified out-of-box, it meets all electrical and mechanical requirements for automotive body electronics including ISO 7637-2 Pulse 5a and IEC 61000-4-5 surge immunity when applied per datasheet layout guidelines.
How does the D-FLAT package affect PCB layout compared to SMA?
The D-FLAT package measures 4.60 mm × 2.80 mm × 1.10 mm - 35% smaller footprint and 50% lower profile than SMA. Its symmetrical 2-pin structure requires no orientation marking beyond the cathode band, and its optimized thermal pad (0.2" × 0.25") enables better heat dissipation than standard SMA land patterns.
Can P6SMAJ26ADF-13 be used for bidirectional protection?
No - P6SMAJ26ADF-13 is a unidirectional TVS diode intended for DC line protection with defined polarity. For bidirectional AC or data-line protection, Diodes Incorporated recommends the complementary P6SMAJ26CA-13 (center-tapped, bidirectional variant) or SMAJ26CA series with identical voltage ratings and clamping performance.
P6SMAJ26ADF-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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 14.2A
- 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
P6SMAJ26ADF-13 FAQ
1.How can I place an order for P6SMAJ26ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ26ADF-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 P6SMAJ26ADF-13 reliable?
The price and inventory of P6SMAJ26ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ26ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ26ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ26ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ26ADF-13?
P6SMAJ26ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ26ADF-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 P6SMAJ26ADF-13?
For technical support, including P6SMAJ26ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ26ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ26ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ26ADF-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 P6SMAJ26ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ26ADF-13?
All P6SMAJ26ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ26ADF-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 P6SMAJ26ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ26ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ26ADF-13 Tags
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