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Diodes Incorporated P6SMAJ43ADFQ-13
- Part No.:
- P6SMAJ43ADFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ43ADFQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR D-F
- Quantity:
- Payment:
- Shipping:
Inventory:8,693
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Product details
Overview
P6SMAJ43ADFQ-13 from Diodes Incorporated is an AEC-Q101 qualified 600W surface-mount transient voltage suppressor (TVS) diode in D-FLAT package, designed for automotive power line protection. It features a 43V reverse standoff voltage, 47.8–54.9V breakdown range at 1mA, 69.4V max clamping voltage at 8.6A peak pulse current, and glass-passivated die construction for robust surge immunity.
For engineers reviewing the P6SMAJ43ADFQ-13 datasheet, P6SMAJ43ADFQ-13 pinout, P6SMAJ43ADFQ-13 application, or P6SMAJ43ADFQ-13 equivalent, key selection criteria include clamping voltage margin vs. system rail, IPP derating under thermal constraints, AEC-Q101 qualification status, and D-FLAT footprint compatibility with high-density automotive PCB layouts.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device across DC power rails to divert transient energy-such as ISO 7637-2 load dump or ESD pulses-away from sensitive downstream circuitry. Its low-profile D-FLAT package enables placement near connectors or ECUs where board space is constrained.
The device exhibits fast response time (<1 ns), 600W non-repetitive peak pulse power rating per 10/1000µs waveform, and 1.0W steady-state power dissipation. Thermal resistance is 57°C/W junction-to-terminal when mounted on a 0.4" × 0.5" 2oz copper pad, supporting reliable operation in under-hood environments up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - withstands ISO 7637-2 pulse 5a (load dump) without failure when properly heatsinked |
| Reverse Standoff Voltage | 43.0V - maximum continuous DC operating voltage before significant leakage begins |
| Breakdown Voltage Range | 47.8–54.9V @ 1mA - ensures reliable triggering above nominal 42V automotive systems |
| Max Clamping Voltage | 69.4V @ 8.6A - limits transient overvoltage to safe levels for 48V-compatible electronics |
| Peak Pulse Current | 8.6A @ 10/1000µs - defines surge-handling capacity under standardized transient waveform |
| Junction Temperature Range | −55°C to +150°C - supports operation in engine bay, battery management, and ADAS modules |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: D-FLAT (low-profile surface-mount, cathode-banded, 2-terminal SMD package; dimensions: 4.65mm × 2.80mm × 1.10mm max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side connection point for reverse-biased clamping | Connected to protected line (e.g., 42V rail); conducts during overvoltage to shunt current to ground |
| 2 (Anode) | Reference/ground return path | Must be routed to low-impedance chassis or power ground to ensure effective clamping performance |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enhances long-term stability and moisture resistance in humid under-hood environments |
| Lead-free, halogen- and antimony-free "Green" finish | Meets RoHS 3 (2015/863/EU) and automotive environmental compliance requirements |
| Low-profile D-FLAT package | Reduces PCB real estate by >40% vs. SMA packages while maintaining 600W surge capability |
| AEC-Q101 qualification & PPAP capability | Enables direct use in Tier-1 automotive designs without additional component qualification effort |
| 64°C/W junction-to-terminal thermal resistance (FR-4, 1"×1") | Supports thermal design margin for intermittent surge events in compact ECU layouts |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Body Control Module (BCM) Supply Rail |
|---|---|
Use Scenario: Protects 42V-rated microcontroller and CAN transceivers from load dump transients during alternator regulation failure. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at ECU input connector to clamp surges before LDOs and regulators. Use Value: Limits voltage to ≤69.4V during 100ms load dump event, preventing latch-up or gate oxide damage in 40V-rated ICs. | Use Scenario: Safeguards BCM power supply against jump-start induced reverse polarity and ISO 7637-2 pulse 1/2b transients. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P6SMAJ43ADFQ-13 used with series fuse for asymmetric overvoltage suppression. Use Value: Achieves <1ns response to 10/1000µs transients, ensuring clamping occurs before downstream FETs experience avalanche stress. |
| 48V Mild Hybrid Battery Management System | ADAS Camera Module Power Interface |
Use Scenario: Installed on 48V battery feed line to protect BMS analog front-end and cell monitoring ICs from switching noise and coupling spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of DC-DC converters; coordinated with ceramic X-cap and ferrite bead filtering. Use Value: 69.4V clamping voltage provides ≥5V margin above 48V nominal rail, enabling reliable operation without crowbar circuitry. | Use Scenario: Mounted at FAKRA connector entry point to suppress ESD (IEC 61000-4-2 ±15kV contact) and cable discharge events. IC Role / Device Role / Timing Role: First-line transient defense before power conditioning stage; selected for low capacitance (<50pF at 0V bias) to avoid signal integrity impact on 1.5Gbps GMSL links. Use Value: Typical capacitance of 35pF at 43V VRWM preserves high-speed video signal rise time and jitter performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-Q | Same electrical specs but SMA package (higher profile, 2.3mm height vs. D-FLAT's 1.1mm); no AEC-Q101 certification | Not approved for automotive production; suitable only for industrial prototypes or non-safety-critical systems | Select only if board height budget allows and AEC-Q101 is not mandated |
| TPSMAJ43A | Identical D-FLAT footprint and AEC-Q101 qualification; slightly higher clamping voltage (70.1V vs. 69.4V) and lower IPP (8.5A) | Acceptable for same 42V/48V systems but offers tighter thermal margin due to 0.7V higher VC | Prefer P6SMAJ43ADFQ-13 when minimizing clamping overshoot is critical for downstream 60V-rated MOSFETs |
Compared with SMAJ43A-Q and TPSMAJ43A, P6SMAJ43ADFQ-13 delivers the lowest clamping voltage in a qualified AEC-Q101 D-FLAT package-enabling tighter voltage margins in next-generation 48V automotive electronics without compromising board height or reliability.
Availability
P6SMAJ43ADFQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, 48V mild hybrid battery management systems, and ADAS camera power interfaces requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMAJ43ADFQ-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 integrated circuits, specializing in high-reliability components for automotive, industrial, and computing markets.
The P6SMAJxxADFQ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in 12V/42V/48V automotive power networks-including ECU, BCM, and ADAS subsystems.
FAQ
What is the maximum allowable mounting temperature for reflow soldering of P6SMAJ43ADFQ-13?
The D-FLAT package is rated for lead-free reflow per J-STD-020, with a peak temperature of 260°C for ≤30 seconds. Preheat ramp rate must not exceed 3°C/s, and time above 217°C shall be limited to 60–150 seconds. Diodes recommends using their recommended thermal profile published in Application Note AN-4001 to prevent die cracking or bond wire lift.
Does P6SMAJ43ADFQ-13 require external series impedance for optimal clamping performance?
Yes-this unidirectional TVS requires a low-inductance path to ground and benefits from a small series resistor (typically 0.1–1Ω) between the protected node and the TVS anode to limit di/dt during fast transients. Without it, parasitic inductance in the ground path may cause voltage overshoot exceeding the specified 69.4V clamping level during sub-10ns ESD events.
How does the 600W rating translate to real-world surge duration in automotive applications?
The 600W rating applies to a single 10/1000µs waveform. For longer events like ISO 7637-2 pulse 5a (100ms load dump), the device relies on thermal mass and board copper area to absorb energy. With a 0.4" × 0.5" 2oz copper pad, it can safely handle one 100ms event at 43V standoff, but repeated pulses require derating per Figure 5 in DS42231 Rev. 2-2.
Is P6SMAJ43ADFQ-13 compatible with automated optical inspection (AOI) systems?
Yes-the D-FLAT package has a flat, coplanar surface and clearly defined cathode band marking ('MT' code), enabling reliable detection by standard AOI systems. Diodes specifies a minimum contrast ratio of 3:1 between mold compound and marking ink, meeting IPC-A-610 Class 3 visual inspection requirements for automotive production lines.
P6SMAJ43ADFQ-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):
- 43V
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 69.4V
- Current - Peak Pulse (10/1000µs):
- 8.6A
- 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
P6SMAJ43ADFQ-13 FAQ
1.How can I place an order for P6SMAJ43ADFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ43ADFQ-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 P6SMAJ43ADFQ-13 reliable?
The price and inventory of P6SMAJ43ADFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ43ADFQ-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ43ADFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ43ADFQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ43ADFQ-13?
P6SMAJ43ADFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ43ADFQ-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 P6SMAJ43ADFQ-13?
For technical support, including P6SMAJ43ADFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ43ADFQ-13 requirements.
6.How does Aetrix verify that P6SMAJ43ADFQ-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ43ADFQ-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 P6SMAJ43ADFQ-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ43ADFQ-13?
All P6SMAJ43ADFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ43ADFQ-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 P6SMAJ43ADFQ-13 part is unused and in its original packaging.
Return procedure for P6SMAJ43ADFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ43ADFQ-13 Tags
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