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Diodes Incorporated P6SMAJ17ADF-13
- Part No.:
- P6SMAJ17ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ17ADF-13.pdf
- Description:
- TVS DIODE 17VWM 27.6VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:5,400
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Product details
Overview
P6SMAJ17ADF-13 from Diodes Incorporated is a 600W surface-mount transient voltage suppressor (TVS) diode in the D-FLAT package, designed for unidirectional overvoltage protection of DC power lines and signal interfaces. It features a 17V reverse standoff voltage (VRWM), 18.9–21.7V breakdown voltage (VBR), 27.6V clamping voltage (VC) at 21.7A peak pulse current (IPP), and fast response time for ESD and surge suppression in industrial control and automotive electronics.
For engineers reviewing the P6SMAJ17ADF-13 datasheet, P6SMAJ17ADF-13 pinout, P6SMAJ17ADF-13 application, or P6SMAJ17ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, thermal resistance (RθJA = 92°C/W on 0.4"×0.5" PCB), peak pulse power rating (600W), and RoHS-compliant green packaging with matte tin annealed terminals.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device that remains high-impedance below VRWM (17V) and rapidly transitions to low-impedance conduction above VBR (min 18.9V) to limit transient voltages. Its glass-passivated die construction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device uses a single-junction PN structure with cathode-band polarity marking and is optimized for 10/1000µs waveform compliance per REA standards. Thermal performance is defined for two PCB mounting conditions: RθJT = 57°C/W and RθJA = 92°C/W on a 0.4"×0.5", 2oz copper pad - critical for sustained surge duty cycle design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10×1000µs transients without failure under specified thermal conditions |
| Reverse Standoff Voltage (VRWM) | 17V - maximum continuous DC or RMS voltage before significant leakage; sets upper limit for protected line voltage |
| Breakdown Voltage (VBR) | 18.9–21.7V @ 1mA - defines onset of clamping; tight tolerance enables predictable protection threshold |
| Clamping Voltage (VC) | 27.6V @ IPP = 21.7A - maximum voltage seen by downstream circuit during worst-case surge |
| Peak Pulse Current (IPP) | 21.7A - peak current the device safely diverts during 10×1000µs transient |
| Thermal Resistance (RθJA) | 92°C/W - junction-to-ambient value on 0.4"×0.5" 2oz FR-4; determines temperature rise under steady-state power dissipation |
| Package | D-FLAT - ultra-low-profile surface-mount package (2.25–2.95mm width, 3.95–4.60mm length) minimizing board space |
Pinout & Package
Package: D-FLAT - molded plastic case (UL 94V-0), cathode band polarity indicator, matte tin annealed copper leadframe, 0.035g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode of internal PN junction | Connected to protected line; conducts surge current toward ground when voltage exceeds VBR |
| 2 (Anode) | Cathode of internal PN junction | Typically tied to system ground; completes shunt path for transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Ensures stable VBR over temperature and lifetime; eliminates surface contamination effects on breakdown consistency |
| 600W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4kV/2Ω) surge immunity when properly mounted on recommended PCB layout |
| Low profile D-FLAT package | Reduces board footprint by >40% vs. SMA; enables high-density routing in space-constrained industrial modules |
| RoHS & halogen-free compliance | Meets EU RoHS 2 (2011/65/EU) and green requirements (<900ppm Br, <900ppm Cl, <1000ppm Sb) |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24V DC input channels of programmable logic controllers against induced lightning surges and inductive switching transients. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between field input and controller front-end, responding within nanoseconds to clamp voltage below 30V. Use Value: Prevents damage to optocouplers and level-shifting ICs by limiting transient voltage to 27.6V while handling up to 21.7A peak current. | Use Scenario: Safeguarding LIN bus transceivers and microcontroller GPIOs in door module ECUs exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Unidirectional surge suppressor connected between LIN line and chassis ground, activated only during positive transients. Use Value: Maintains signal integrity during 10/1000µs pulses up to 600W without latch-up or parametric shift due to glass-passivated junction. |
| Medical Equipment Power Input | Smart Meter Communication Interface |
Use Scenario: Guarding isolated 12V auxiliary power rails in diagnostic imaging systems against ESD and conducted surges from external connectors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC output, coordinated with upstream fusing and filtering. Use Value: Provides certified 600W surge handling per IEC 61000-4-2/4-5 while meeting medical-grade creepage/clearance requirements via compact D-FLAT footprint. | Use Scenario: Protecting RS-485 transceivers in utility smart meters connected to long outdoor data cables susceptible to induced surges. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pair, placed adjacent to connector to minimize inductance in clamping path. Use Value: Limits clamping voltage to 27.6V at 21.7A, ensuring transceiver survival during 4kV contact discharge events without compromising common-mode rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17A-Q | Same VRWM (17V), higher VC (29.1V), lower IPP (20.6A); JEDEC-standard SMA package (larger footprint) | Less effective clamping margin for 3.3V/5V logic rails; requires larger PCB area | Select when legacy SMA footprint compatibility is required and 1.5V higher clamping is acceptable |
| 1.5SMC17A | Same VRWM (17V), identical VC (27.6V), but rated for 600W in larger SMC package; RθJA = 15°C/W (superior thermal performance) | Better suited for high-duty-cycle or repeated surge environments due to lower thermal resistance | Choose for designs requiring >100 surges/hour or operation above +85°C ambient |
Compared with SMAJ17A-Q and 1.5SMC17A, P6SMAJ17ADF-13 delivers identical clamping performance in a 40% smaller footprint than SMA and with tighter VBR tolerance than SMC, making it optimal for space-constrained industrial and automotive modules where thermal management is handled via board-level copper pours.
Availability
P6SMAJ17ADF-13 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, medical equipment power inputs, and smart meter communication interfaces requiring stable component supply across extended production lifecycles.
Supply support for P6SMAJ17ADF-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 computing markets.
The P6SMAJ series belongs to Diodes' transient voltage suppressor product line, engineered specifically for high-power, low-profile surge protection in harsh electromagnetic environments where board space and thermal efficiency are critical constraints.
FAQ
What is the polarity configuration of P6SMAJ17ADF-13?
P6SMAJ17ADF-13 is a unidirectional TVS diode with cathode-band marking on terminal 1. It conducts only during positive transients relative to ground, making it suitable for DC power line and single-ended signal protection where reverse voltage is not expected. The schematic shows terminal 1 as cathode and terminal 2 as anode.
How does the D-FLAT package affect thermal performance compared to SMA?
The D-FLAT package achieves RθJA = 92°C/W on a 0.4"×0.5" PCB - 23°C/W higher than typical SMA packages - due to reduced copper pad area and thinner mold compound. This requires careful thermal pad design: minimum 0.2"×0.25" copper, 2oz weight, and thermal vias to inner ground planes for sustained surge duty cycles.
Can P6SMAJ17ADF-13 be used for bidirectional protection?
No. P6SMAJ17ADF-13 is strictly unidirectional and lacks symmetrical breakdown behavior. For AC or bidirectional signal lines, Diodes recommends the complementary P6SMAJ17CA-13 (bidirectional variant) or discrete back-to-back configuration using two unidirectional devices - neither of which is electrically interchangeable with this part.
What is the maximum operating temperature range for continuous use?
P6SMAJ17ADF-13 is rated for continuous operation from –55°C to +150°C junction temperature. At maximum ambient temperature (+125°C), power dissipation must be limited to ≤0.45W based on RθJA = 92°C/W to maintain TJ ≤ 150°C - verified using the derating curve in Figure 1 of DS38930 Rev. 2-2.
P6SMAJ17ADF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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
P6SMAJ17ADF-13 FAQ
1.How can I place an order for P6SMAJ17ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ17ADF-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 P6SMAJ17ADF-13 reliable?
The price and inventory of P6SMAJ17ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ17ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ17ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ17ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ17ADF-13?
P6SMAJ17ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ17ADF-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 P6SMAJ17ADF-13?
For technical support, including P6SMAJ17ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ17ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ17ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ17ADF-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 P6SMAJ17ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ17ADF-13?
All P6SMAJ17ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ17ADF-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 P6SMAJ17ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ17ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ17ADF-13 Tags
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