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Diodes Incorporated P6SMAJ8.5ADFQ-13
- Part No.:
- P6SMAJ8.5ADFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ8.5ADFQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR D-F
- Quantity:
- Payment:
- Shipping:
Inventory:7,018
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Product details
Overview
P6SMAJ8.5ADFQ-13 from Diodes Incorporated is an AEC-Q101 qualified, 600W surface-mount transient voltage suppressor (TVS) diode in the D-FLAT package, designed for automotive power line and signal line protection. It features a reverse standoff voltage of 8.5 V, clamping voltage of 14.4 V at 41.7 A peak pulse current, and fast response time to suppress ESD and surge transients per ISO 7637-2 and IEC 61000-4-5.
For engineers reviewing the P6SMAJ8.5ADFQ-13 datasheet, P6SMAJ8.5ADFQ-13 pinout, P6SMAJ8.5ADFQ-13 application, or P6SMAJ8.5ADFQ-13 equivalent, this TVS diode is selected for robust overvoltage protection in 12 V automotive subsystems including body control modules, infotainment power rails, and LIN/CAN transceiver interfaces where low clamping voltage and AEC-Q101 compliance are mandatory.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector, conducting when reverse voltage exceeds its 9.44–10.82 V breakdown range (tested at 1.0 mA), limiting transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable leakage performance and long-term reliability under thermal cycling.
The device delivers 600 W peak pulse power handling (10/1000 µs waveform), with 1.0 W steady-state dissipation capability and thermal resistance of 57 °C/W (junction-to-terminal) on optimized 0.4" × 0.5" PCB copper pads. Its 14.4 V clamping voltage at 41.7 A enables effective protection of 12 V logic and analog ICs without over-stressing downstream components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - Sustains single 10/1000 µs surges up to 41.7 A without failure |
| Reverse Standoff Voltage | 8.5 V - Blocks normal 12 V system operation while remaining non-conductive |
| Clamping Voltage | 14.4 V @ 41.7 A - Limits transient voltage seen by protected ICs to safe levels |
| Breakdown Voltage | 9.44–10.82 V @ 1.0 mA - Ensures precise, repeatable turn-on threshold |
| Leakage Current | 10 µA @ 8.5 V - Minimizes standby power loss in always-on automotive circuits |
| Package | D-FLAT - Low-profile (1.1 mm max height), space-efficient SMT footprint for dense PCB layouts |
Pinout & Package
Package: D-FLAT (2-pin surface-mount), molded plastic case with UL 94V-0 rating, cathode band polarity indicator, and matte tin annealed copper lead-frame terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to protected circuit's positive rail; conducts during overvoltage to clamp to ground |
| 2 | Anode | Connected to system ground; completes shunt path for surge current during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with PPAP capability and IATF16949 manufacturing |
| Glass-passivated die | Ensures stable electrical parameters and long-term reliability under temperature/humidity stress |
| Low clamping ratio (VC/VBR ≈ 1.45) | Delivers tight voltage control during transients-critical for protecting 12 V tolerant ICs |
| D-FLAT low-profile package | Reduces board height to ≤1.1 mm and improves thermal transfer via exposed copper terminals |
| Halogen- and antimony-free "Green" construction | Meets automotive environmental standards (<900 ppm Br/Cl, <1000 ppm Sb) |
Applications
| Body Control Module (BCM) Power Input | Infotainment System USB Power Rail |
|---|---|
Use Scenario: Protects BCM microcontroller and CAN transceivers from load dump and jump-start transients on 12 V supply lines. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VIN and GND, clamping surges within 1 ns. Use Value: Clamps to 14.4 V at 41.7 A, preventing damage to 16 V-rated LDOs and MCU I/O pins. |
Use Scenario: Shields USB VBUS line in head unit against ESD events and cable-induced surges. IC Role / Device Role / Timing Role: Fast-response TVS connected inline with USB power path, grounded at connector shell. Use Value: 10 µA leakage preserves battery life in always-connected vehicle systems; D-FLAT footprint fits narrow USB layout. |
| LIN Transceiver Interface | Automotive Lighting Driver Supply |
Use Scenario: Safeguards LIN bus physical layer from induced transients during actuator switching in door modules. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional TVS placed on LIN+ line referenced to chassis ground. Use Value: 9.44–10.82 V breakdown aligns with LIN bus operating range (8–18 V), avoiding false triggering. |
Use Scenario: Protects LED driver IC supply input from alternator ripple and relay coil kickback in rear lighting assemblies. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V input before buck converter stage. Use Value: 600 W pulse rating handles repetitive 100 ms load-dump events per ISO 7637-2 Pulse 5a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5A-Q | Non-automotive grade; no AEC-Q101 qualification; same D-FLAT package and 8.5 V VRWM | Lacks PPAP support and IATF16949 traceability; unsuitable for Tier 1 automotive production | Select only for cost-sensitive industrial prototypes where AEC-Q101 is not mandated |
| 1.5SMC8.5A | Higher profile SMC package (2.5 mm height); 600 W rating; 14.4 V clamping identical | Requires more PCB area and has higher thermal resistance (RθJA = 125 °C/W vs. 92 °C/W) | Use only if D-FLAT footprint is unavailable or thermal pad access is restricted |
Compared with SMAJ8.5A-Q and 1.5SMC8.5A, the P6SMAJ8.5ADFQ-13 uniquely combines AEC-Q101 compliance, D-FLAT low-profile packaging, and 92 °C/W junction-to-ambient thermal resistance-enabling compact, production-ready surge protection in space-constrained automotive ECUs.
Availability
P6SMAJ8.5ADFQ-13 is available at Aetrix Electronics and suitable for automotive body electronics, infotainment power management, and LIN/CAN interface protection requiring stable component supply across multi-year vehicle production cycles.
Supply support for P6SMAJ8.5ADFQ-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 components for automotive, industrial, and consumer markets with ISO/TS 16949 and IATF16949 certified facilities.
The P6SMAJ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for automotive power line and data line surge immunity-meeting stringent requirements for load dump, ESD, and ISO 7637-2 transient suppression.
FAQ
What is the maximum peak pulse current the P6SMAJ8.5ADFQ-13 can handle?
The P6SMAJ8.5ADFQ-13 supports a maximum peak pulse current (IPP) of 41.7 A under the standard 10/1000 µs double-exponential waveform. This value is derived directly from its 14.4 V clamping voltage and 600 W peak pulse power rating (PPK = VC × IPP). It is validated per JEDEC test conditions with ≤4 pulses per minute.
Is the P6SMAJ8.5ADFQ-13 bidirectional or unidirectional?
The P6SMAJ8.5ADFQ-13 is a unidirectional TVS diode, indicated by its single cathode band marking and specified reverse standoff/clamping behavior. Its schematic shows anode and cathode terminals with conduction only in reverse bias-making it suitable for DC power line protection but not AC or differential signal lines without external configuration.
How does the D-FLAT package improve thermal performance compared to SMA?
The D-FLAT package uses a flat, exposed copper lead-frame that provides lower thermal resistance (RθJT = 57 °C/W) than standard SMA packages (typically >70 °C/W). Its 0.2" × 0.25" recommended pad layout maximizes copper area for heat spreading, enabling higher sustained power dissipation in confined automotive PCB spaces.
Does this part meet ISO 7637-2 Pulse 5a requirements?
Yes-the P6SMAJ8.5ADFQ-13's 600 W peak pulse rating, 14.4 V clamping voltage, and AEC-Q101 qualification confirm suitability for ISO 7637-2 Pulse 5a (load dump) suppression in 12 V systems. Its 41.7 A IPP exceeds the 30–40 A typical requirement for Pulse 5a waveforms with 100 ms duration and 12 V baseline.
P6SMAJ8.5ADFQ-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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-Flat
P6SMAJ8.5ADFQ-13 FAQ
1.How can I place an order for P6SMAJ8.5ADFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ8.5ADFQ-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 P6SMAJ8.5ADFQ-13 reliable?
The price and inventory of P6SMAJ8.5ADFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ8.5ADFQ-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ8.5ADFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ8.5ADFQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ8.5ADFQ-13?
P6SMAJ8.5ADFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ8.5ADFQ-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 P6SMAJ8.5ADFQ-13?
For technical support, including P6SMAJ8.5ADFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ8.5ADFQ-13 requirements.
6.How does Aetrix verify that P6SMAJ8.5ADFQ-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ8.5ADFQ-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 P6SMAJ8.5ADFQ-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ8.5ADFQ-13?
All P6SMAJ8.5ADFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ8.5ADFQ-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 P6SMAJ8.5ADFQ-13 part is unused and in its original packaging.
Return procedure for P6SMAJ8.5ADFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ8.5ADFQ-13 Tags
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