Diodes Incorporated P6SMAJ30ADFQ-13
- Part No.:
- P6SMAJ30ADFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ30ADFQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR D-F
- Quantity:
- Payment:

- Shipping:

Inventory:7,085
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Product details
Overview
P6SMAJ30ADFQ-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 and signal line surge protection. It features a 30V reverse standoff voltage, 33.3–38.3V breakdown range at 1mA, 48.4V clamping voltage at 12.4A peak pulse current, and is rated for -55°C to +150°C operation.
For engineers reviewing the P6SMAJ30ADFQ-13 datasheet, P6SMAJ30ADFQ-13 pinout, P6SMAJ30ADFQ-13 application, or P6SMAJ30ADFQ-13 equivalent, this TVS diode supports robust ESD and lightning surge immunity in automotive ECUs, infotainment power rails, and CAN/LIN bus interfaces where low-profile packaging and IATF16949-compliant manufacturing are required.
Technical Context
This unidirectional TVS diode operates as a clamping device that remains high-impedance below 30V reverse standoff voltage and rapidly transitions to low-impedance conduction above its 33.3V minimum breakdown threshold. Its glass-passivated junction ensures stable leakage (<1µA at VRWM) and repeatable clamping performance under repetitive transients.
The device delivers 600W non-repetitive peak pulse power handling per 10/1000µs waveform, with thermal resistance of 57°C/W (junction-to-terminal) on a 0.4" × 0.5" FR-4 pad - enabling effective heat dissipation in space-constrained automotive PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10/1000µs surges up to 600W without failure, meeting ISO 7637-2 Pulse 1/2a/3a requirements. |
| Reverse Standoff Voltage | 30V - maximum continuous DC or RMS operating voltage before significant leakage; sets system overvoltage trip margin. |
| Breakdown Voltage | 33.3–38.3V @ 1mA - defines precise conduction onset; tight 15% tolerance enables accurate protection window design. |
| Clamping Voltage | 48.4V @ 12.4A - limits downstream circuit voltage during surge; critical for safeguarding 48V-compatible ICs and transceivers. |
| Leakage Current | <1µA @ 30V - negligible standby power loss and no interference with high-impedance sensor or communication lines. |
| Operating Temperature | -55°C to +150°C - supports under-hood and transmission-control module placement without derating. |
| Package | D-FLAT - 2.25–2.95mm width, 3.95–4.60mm length, 0.90–1.10mm height; enables ultra-low profile mounting on dense automotive PCBs. |
Pinout & Package
Package: D-FLAT surface-mount package with cathode band marking; molded plastic case (UL 94V-0), matte tin annealed copper lead-frame, polarity indicated by cathode band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Surge current sink node | Connected to protected line; conducts transient energy to ground when clamped; must be routed with low-inductance path. |
| 2 (Anode) | Reference / ground return | Typically tied to chassis or power ground; forms clamping loop; requires low-impedance grounding for effective suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing - eliminates requalification effort for Tier 1 designs. |
| Glass passivated die | Ensures long-term stability of breakdown voltage and leakage across humidity and thermal stress - critical for 15-year vehicle lifetimes. |
| Low-profile D-FLAT package | Height ≤1.10mm - enables placement beneath connectors or near edge-mount components in compact ADAS control units. |
| 64°C/W RθJA (1"×1" pad) | Allows >1W steady-state dissipation on standard FR-4 - supports hybrid use cases combining surge protection and modest power regulation. |
| Halogen- and antimony-free | Meets automotive "Green" standards (<900ppm Br, <900ppm Cl, <1000ppm Sb) - satisfies OEM material declarations and end-of-life recycling mandates. |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Infotainment USB Power Rail |
|---|---|
Use Scenario: Protects 12V supply input of engine control modules against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Unidirectional clamping TVS placed between battery rail and DC-DC input filter. Use Value: Limits transient voltage to ≤48.4V, preventing damage to 40V-rated buck controllers and microcontrollers. |
Use Scenario: Shields USB VBUS line in head unit against ESD (IEC 61000-4-2 ±15kV contact) and hot-swap surges. IC Role / Device Role: Primary front-end surge clamp ahead of USB power switch and protection IC. Use Value: Sub-1µA leakage avoids phantom drain; fast response preserves data integrity during plug/unplug events. |
| CAN FD Transceiver Interface | Body Control Module LIN Bus Line |
Use Scenario: Safeguards CAN_H/CAN_L differential pair in high-speed automotive networks exposed to cable discharge and inductive switching noise. IC Role / Device Role: Bidirectional protection implemented using two P6SMAJ30ADFQ-13 devices (anode-to-anode configuration). Use Value: 48.4V clamping prevents latch-up in 5V CAN FD transceivers while maintaining signal integrity up to 5Mbps. |
Use Scenario: Protects LIN slave nodes (e.g., door modules, sensors) from battery transients and ESD during service operations. IC Role / Device Role: Single unidirectional TVS on LIN bus line referenced to battery ground. Use Value: 30V standoff aligns with LIN spec (12V nominal, 18V max); 12.4A IPP handles worst-case short-circuit surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-Q | Same 30V VRWM and 48.4V VC, but not AEC-Q101 qualified; JEDEC-standard SMA package (higher profile: 2.7mm height). | Limited to industrial or consumer applications; unsuitable for PPAP-controlled automotive programs. | Select when cost sensitivity outweighs automotive compliance and board height is not constrained. |
| TPSMAJ30A | Identical electrical specs and D-FLAT package, but manufactured by STMicroelectronics; RoHS-compliant with different halogen-free definition. | Acceptable for dual-sourcing in non-PPAP contexts; requires separate qualification for safety-critical systems. | Choose for supply chain diversification where full AEC-Q101 revalidation is feasible. |
Compared with SMAJ30A-Q and TPSMAJ30A, the P6SMAJ30ADFQ-13 uniquely combines AEC-Q101 qualification, IATF16949 manufacturing, and D-FLAT's 1.1mm max height - making it the only option qualified for volume production in space-limited, safety-compliant automotive modules without redesign.
Availability
P6SMAJ30ADFQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, infotainment power supplies, and CAN/LIN bus protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMAJ30ADFQ-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 computing markets.
The P6SMAJ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for automotive power line and data line surge immunity - emphasizing low clamping voltage, tight parametric distribution, and zero-defect manufacturing.
FAQ
What is the maximum peak pulse current the P6SMAJ30ADFQ-13 can handle?
The P6SMAJ30ADFQ-13 supports a maximum peak pulse current (IPP) of 12.4A under the standardized 10/1000µs double-exponential waveform. This value is derived directly from its 48.4V clamping voltage and 600W peak pulse power rating (PPK = VC × IPP). It is validated per JEDEC test conditions and applies at TA = +25°C with proper PCB thermal relief.
Is the P6SMAJ30ADFQ-13 bidirectional or unidirectional?
The P6SMAJ30ADFQ-13 is a unidirectional TVS diode, configured as a single PN junction with cathode and anode terminals. Its schematic symbol and datasheet electrical characteristics (e.g., forward voltage of 3.5V at 35A) confirm unidirectional operation. For bidirectional protection, two devices must be connected anode-to-anode or a dedicated bidirectional part like P6SMBJ30CA should be used.
Does this TVS diode require a heatsink in typical automotive applications?
No heatsink is required. The D-FLAT package achieves 57°C/W junction-to-terminal thermal resistance on a 0.4" × 0.5" 2oz copper pad, allowing full 600W pulse handling without external cooling. Steady-state power dissipation is limited to 1.0W at TL = +25°C, well within safe operating limits for automotive ambient conditions when mounted per recommended pad layout.
How does the P6SMAJ30ADFQ-13 differ from the older P6SMAJ30A?
The P6SMAJ30ADFQ-13 adds automotive-specific qualifications: AEC-Q101 stress testing, PPAP capability, and manufacturing in IATF16949-certified facilities. Electrically identical, it also features enhanced green compliance (halogen- and antimony-free per Diodes' specification) and updated tape-and-reel packaging (10,000 units/reel) versus legacy variants.
P6SMAJ30ADFQ-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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- 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
P6SMAJ30ADFQ-13 FAQ
1.How can I place an order for P6SMAJ30ADFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ30ADFQ-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 P6SMAJ30ADFQ-13 reliable?
The price and inventory of P6SMAJ30ADFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ30ADFQ-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ30ADFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ30ADFQ-13 transactions.
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P6SMAJ30ADFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ30ADFQ-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 P6SMAJ30ADFQ-13?
For technical support, including P6SMAJ30ADFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ30ADFQ-13 requirements.
6.How does Aetrix verify that P6SMAJ30ADFQ-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ30ADFQ-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 P6SMAJ30ADFQ-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ30ADFQ-13?
All P6SMAJ30ADFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ30ADFQ-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 P6SMAJ30ADFQ-13 part is unused and in its original packaging.
Return procedure for P6SMAJ30ADFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ30ADFQ-13 Tags

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