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Diodes Incorporated P6SMAJ8.5ADF-13
- Part No.:
- P6SMAJ8.5ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ8.5ADF-13.pdf
- Description:
- TVS DIODE 8.5VWM 14.4VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:9,814
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Product details
Overview
P6SMAJ8.5ADF-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 8.5V, breakdown voltage range of 9.44–10.82V at 1.0mA test current, clamping voltage of 14.4V at 41.7A peak pulse current, and D-FLAT package for space-constrained PCB layouts - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the P6SMAJ8.5ADF-13 datasheet, P6SMAJ8.5ADF-13 pinout, P6SMAJ8.5ADF-13 application, or P6SMAJ8.5ADF-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, peak pulse current capability under IEC 61000-4-5 surge conditions, thermal resistance to PCB copper pad area, and RoHS/Green compliance for export-controlled designs.
Technical Context
This unidirectional TVS diode operates as a clamping device that remains high-impedance below 8.5V VRWM and rapidly transitions to low-impedance conduction above its 9.44V minimum breakdown threshold. Its glass-passivated junction ensures stable leakage (<10µA at VRWM) and repeatable clamping performance across temperature.
The 14.4V clamping voltage is measured at 41.7A peak pulse current under standardized 10/1000µs waveform conditions, with thermal resistance RθJA of 92°C/W on a 0.4" × 0.5" 2oz FR-4 pad - enabling reliable surge dissipation without thermal runaway in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10/1000µs surges up to 41.7A without failure |
| Reverse Standoff Voltage | 8.5V - maximum continuous DC operating voltage before leakage rises |
| Breakdown Voltage Range | 9.44–10.82V @ 1.0mA - defines precise turn-on threshold for overvoltage triggering |
| Clamping Voltage | 14.4V @ 41.7A - limits downstream voltage during surge to protect 12V-rated ICs |
| Max Reverse Leakage | 10µA @ 8.5V - negligible standby current impact on low-power systems |
| Package | D-FLAT - 4.65mm × 2.80mm footprint with 0.9–1.1mm height for ultra-thin assemblies |
Pinout & Package
Package: D-FLAT surface-mount package with cathode band marking; case material is UL 94V-0 molded plastic; terminals are matte tin annealed over copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Protected circuit return path | Connected to ground or low-side rail; carries full surge current during clamping |
| 2 (Anode) | Input line connection | Connected to supply or signal line; voltage referenced to cathode during transient |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures long-term stability of breakdown voltage and leakage under thermal cycling |
| Low-profile D-FLAT package | Reduces board area by >40% vs. SMA packages while maintaining 600W rating |
| Fast response time | Sub-nanosecond junction response enables protection against ESD and fast transients |
| RoHS & Halogen-free compliance | Meets EU Directive 2011/65/EU and green standards (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 12V DC input rail in programmable logic controller (PLC) power stage exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between input connector and upstream fuse. Use Value: Clamps transients to ≤14.4V, protecting 12V-rated DC-DC controllers and microcontrollers without derating margin loss. |
Use Scenario: LIN bus interface and window lift motor driver circuits subject to ISO 7637-2 Pulse 1/2a/5a surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V battery feed to BCU sub-circuits. Use Value: Withstands 60A surge per JEDEC test while maintaining <10µA leakage at nominal 12V operation. |
| USB-C Power Delivery Interface | Smart Meter Communication Port |
Use Scenario: VBUS line protection in USB-C PD sink applications where 9V–20V negotiation occurs. IC Role / Device Role / Timing Role: Secondary clamping device downstream of primary ESD array, handling higher-energy surges. Use Value: 8.5V VRWM aligns with USB PD 9V profile; 14.4V clamping prevents damage to buck converter input FETs. |
Use Scenario: RS-485 transceiver power rail in utility smart meters installed in outdoor substations. IC Role / Device Role / Timing Role: DC rail protector against lightning-induced surges coupled through long communication cables. Use Value: 600W rating handles IEC 61000-4-5 Level 4 (4kV) surges; D-FLAT package fits narrow meter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5A | Same electrical specs but non-Green, halogen-containing molding compound; RθJA = 115°C/W on larger pad | Limited to non-EU export or cost-sensitive industrial use where RoHS exemption applies | Select when legacy qualification or lower unit cost outweighs environmental compliance requirements |
| 1.5SMC8.5A | Higher 1500W rating, DO-214AB package (7.1mm × 6.2mm), 2.5× larger footprint, VF = 3.5V | Suitable for high-energy surge environments (e.g., telecom AC/DC front-end) where board space permits | Choose only if 600W is insufficient and PCB layout allows larger package; not drop-in compatible |
Compared with SMAJ8.5A, P6SMAJ8.5ADF-13 offers tighter thermal performance and green compliance; versus 1.5SMC8.5A, it trades surge capacity for 60% smaller footprint - making it optimal for space-constrained 12V embedded systems requiring certified environmental compliance.
Availability
P6SMAJ8.5ADF-13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and smart meter communication ports requiring stable component supply with full RoHS and halogen-free certification.
Supply support for P6SMAJ8.5ADF-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 P6SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability, space-efficient overvoltage protection in automotive, industrial, and consumer power systems.
FAQ
What is the polarity configuration of P6SMAJ8.5ADF-13?
P6SMAJ8.5ADF-13 is a unidirectional TVS diode with cathode (pin 1) marked by a band. It conducts only when anode-to-cathode voltage exceeds breakdown; reverse bias blocks up to −8.5V. This configuration protects positive-rail circuits without conducting during normal negative transients.
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" 2oz copper pad - 20% better than standard SMA packages - due to optimized thermal path from die to PCB via flat bottom surface and shorter internal leads, enabling higher sustained surge duty in dense layouts.
Can P6SMAJ8.5ADF-13 be used in bidirectional applications?
No - P6SMAJ8.5ADF-13 is strictly unidirectional. For bidirectional protection (e.g., AC lines or differential buses), Diodes' P6SMBJ8.5CA or SMAJ8.5CA series must be used; substituting this part would leave negative-going transients unprotected.
What is the maximum allowable mounting temperature during reflow soldering?
P6SMAJ8.5ADF-13 is rated for moisture sensitivity level 1 per J-STD-020 and supports standard Pb-free reflow profiles with peak temperature up to 260°C for ≤30 seconds. Pre-baking is not required, and the device withstands thermal shock from −55°C to +150°C operating range.
P6SMAJ8.5ADF-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):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 41.7A
- 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
P6SMAJ8.5ADF-13 FAQ
1.How can I place an order for P6SMAJ8.5ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ8.5ADF-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 P6SMAJ8.5ADF-13 reliable?
The price and inventory of P6SMAJ8.5ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ8.5ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ8.5ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ8.5ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ8.5ADF-13?
P6SMAJ8.5ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ8.5ADF-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 P6SMAJ8.5ADF-13?
For technical support, including P6SMAJ8.5ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ8.5ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ8.5ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ8.5ADF-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 P6SMAJ8.5ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ8.5ADF-13?
All P6SMAJ8.5ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ8.5ADF-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 P6SMAJ8.5ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ8.5ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ8.5ADF-13 Tags
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ESD9B5.0ST5G
onsemi
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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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