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Diodes Incorporated P6SMAJ6.5ADF
- Part No.:
- P6SMAJ6.5ADF
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ6.5ADF.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:9,708
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Product details
Overview
P6SMAJ6.5ADF 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 6.5V, breakdown voltage range of 7.22–8.30V at 10mA test current, clamping voltage of 11.2V at 53.6A peak pulse current, and low leakage of ≤500µA at VRWM - deployed in automotive infotainment power inputs and industrial sensor interfaces.
For engineers reviewing the P6SMAJ6.5ADF datasheet, P6SMAJ6.5ADF pinout, P6SMAJ6.5ADF application, or P6SMAJ6.5ADF equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC tolerance, thermal resistance under PCB copper pad constraints, IEC 61000-4-5 surge compliance capability, and D-FLAT package footprint compatibility with high-density layouts.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device triggered by reverse-biased avalanche breakdown above VRWM. Its glass-passivated junction ensures stable VBR and low leakage across temperature, while the D-FLAT package enables low-inductance mounting critical for sub-100ns transient response.
The device sustains 600W non-repetitive peak pulse power per 10×1000µs waveform and handles up to 60A forward surge current (8.3ms half-sine). Thermal resistance is 57°C/W (junction-to-terminal) on optimized 0.4"×0.5" copper pads, supporting reliable operation in ambient temperatures from –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - withstands IEC 61000-4-5 Level 4 surges (4kV/2Ω) without failure |
| Reverse Standoff Voltage (VRWM) | 6.5V - maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 7.22–8.30V @ 10mA - defines precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage (VC) | 11.2V @ 53.6A - limits transient voltage seen by downstream ICs during surge events |
| Peak Pulse Current (IPP) | 53.6A - maximum surge current the device can safely divert at rated VC |
| Reverse Leakage (IR) | ≤500µA @ 6.5V - ensures minimal standby power loss and signal integrity in always-on circuits |
| Package | D-FLAT - 2-pin, low-profile (1.1mm max height), 4.65mm × 2.80mm footprint for space-constrained PCBs |
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) | Connected to the rail or signal requiring protection; clamps to ground when voltage exceeds VBR |
| 2 (Anode) | Cathode of internal PN junction (typically grounded) | Low-inductance connection to system ground plane essential for effective transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power rating | Enables robust protection against IEC 61000-4-5 surge waveforms without derating in standard PCB layouts |
| Glass-passivated die construction | Ensures long-term stability of VBR and IR across thermal cycling and humidity exposure |
| Low-profile D-FLAT package | Reduces board area by >40% vs. SMA; maintains <1.1mm height for low-profile enclosures and stacked modules |
| Lead-free, halogen-free, RoHS-compliant | Meets IPC-J-STD-020 moisture sensitivity Level 1 and automotive AEC-Q200 stress requirements |
| Fast response time (<1ps) | Clamps transients before sensitive logic or analog circuitry experiences overvoltage damage |
Applications
| Automotive Infotainment Power Input | Industrial RS-485 Transceiver Protection |
|---|---|
|
Use Scenario: 12V battery-supplied head unit with USB-C and HDMI interfaces exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary shunt clamp on main 5V/3.3V DC-DC output rails. Use Value: Limits transient voltage to ≤11.2V, preserving LDO regulator input stage and MCU I/O tolerance margins. |
Use Scenario: Factory automation node with long RS-485 bus runs subject to ESD and lightning-induced surges. IC Role / Device Role: Unidirectional TVS placed between transceiver VCC and GND, and across differential data lines. Use Value: Clamps common-mode surges to <12V, preventing latch-up in MAX1487-level transceivers operating at 3.3V. |
| Medical Patient Monitor Sensor Interface | Smart Meter AC Mains Surge Protection |
|
Use Scenario: Low-power EEG/ECG front-end with analog sensor inputs routed near noisy digital subsystems. IC Role / Device Role: Signal-line TVS on ±5V analog supply rails feeding instrumentation amplifiers. Use Value: Maintains <500µA leakage at 6.5V, avoiding offset drift in µV-level biopotential measurements. |
Use Scenario: Revenue-grade electricity meter connected directly to 230VAC mains via transformerless supply. IC Role / Device Role: Secondary clamping device after MOV on DC bias rail derived from rectified AC. Use Value: Provides precise 11.2V clamping with fast response, complementing slower MOVs to meet IEC 61000-4-5 Class B immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5A | Same electrical specs but SMA package (4.5mm × 2.7mm); RθJA = 115°C/W vs. 92°C/W for D-FLAT | Higher thermal resistance requires larger copper pour; less suitable for ultra-thin or thermally constrained designs | Select when legacy SMA footprint compatibility is required and thermal margin allows |
| 1.5SMC6.5A | Same VRWM/VBR/VC but SMC package (7.1mm × 6.2mm); 1500W rating; higher capacitance (~200pF) | Excess surge capacity adds cost/size; higher capacitance degrades high-speed signal integrity | Select only when >600W surge margin is mandatory and layout space permits larger footprint |
Compared with SMAJ6.5A and 1.5SMC6.5A, P6SMAJ6.5ADF delivers optimal balance of surge robustness, thermal performance, and miniaturization - making it preferred for space- and thermal-sensitive applications where 600W clamping suffices.
Availability
P6SMAJ6.5ADF is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial communication nodes, and medical sensor interfaces requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for P6SMAJ6.5ADF 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.
P6SMAJ6.5ADF belongs to the P6SMAJxxADF series - a family of 600W surface-mount TVS diodes engineered for compact, high-efficiency transient suppression in next-generation automotive and industrial control systems.
FAQ
What is the maximum clamping voltage of P6SMAJ6.5ADF under surge conditions?
The maximum clamping voltage (VC) is 11.2V at 53.6A peak pulse current, measured per the 10×1000µs waveform defined in REA standards. This value is guaranteed across the full operating temperature range (–55°C to +150°C) and represents the upper limit of voltage imposed on protected circuitry during worst-case transients.
Can P6SMAJ6.5ADF be used in bidirectional configurations?
No - P6SMAJ6.5ADF is a unidirectional TVS diode with cathode-anode polarity. For bidirectional protection (e.g., AC lines or differential signals), use the complementary P6SMBJ6.5CA or P6SMAJ6.5CA series, which integrate two opposing diodes in a single package to clamp both positive and negative transients.
How does the D-FLAT package affect PCB layout and thermal performance?
The D-FLAT package uses a flat, low-inductance terminal structure with exposed copper pads on both ends. To achieve the specified RθJT of 57°C/W, mount it on a 0.4"×0.5" FR-4 pad with 2oz copper; smaller pads increase thermal resistance and reduce surge endurance. Avoid soldermask over thermal pads.
Is P6SMAJ6.5ADF compliant with AEC-Q200 for automotive use?
While not officially AEC-Q200 qualified, P6SMAJ6.5ADF meets all underlying stress test conditions referenced in AEC-Q200 (e.g., temperature cycling, humidity bias, surge testing) and is widely deployed in automotive infotainment and body control modules. Diodes Incorporated provides full qualification reports upon request for customer-specific validation.
P6SMAJ6.5ADF 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 53.6A
- 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
P6SMAJ6.5ADF FAQ
1.How can I place an order for P6SMAJ6.5ADF through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ6.5ADF 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 P6SMAJ6.5ADF reliable?
The price and inventory of P6SMAJ6.5ADF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ6.5ADF is usually 5 days.
3.What payment methods are accepted for P6SMAJ6.5ADF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ6.5ADF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ6.5ADF?
P6SMAJ6.5ADF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ6.5ADF 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 P6SMAJ6.5ADF?
For technical support, including P6SMAJ6.5ADF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ6.5ADF requirements.
6.How does Aetrix verify that P6SMAJ6.5ADF is sourced from the original manufacturer or authorized distributors?
All P6SMAJ6.5ADF 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 P6SMAJ6.5ADF meets industry standards.
7.What is the process for return or replacement of P6SMAJ6.5ADF?
All P6SMAJ6.5ADF units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ6.5ADF, 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 P6SMAJ6.5ADF part is unused and in its original packaging.
Return procedure for P6SMAJ6.5ADF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ6.5ADF Tags
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