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Diodes Incorporated P6SMAJ33ADFQ-13
- Part No.:
- P6SMAJ33ADFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ33ADFQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR D-F
- Quantity:
- Payment:
- Shipping:
Inventory:8,173
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Product details
Overview
P6SMAJ33ADFQ-13 from Diodes Incorporated is an AEC-Q101 qualified 600W surface-mount transient voltage suppressor (TVS) diode in D-FLAT package, with 33V reverse standoff voltage, 53.3V max clamping voltage at 11.3A peak pulse current, and 1.0W steady-state power dissipation. It protects automotive power and signal lines against ESD, lightning-induced surges, and load dump transients.
For engineers reviewing the P6SMAJ33ADFQ-13 datasheet, P6SMAJ33ADFQ-13 pinout, P6SMAJ33ADFQ-13 application, or P6SMAJ33ADFQ-13 equivalent, key selection criteria include clamping voltage margin relative to system rail, peak pulse current capability under 10/1000µs waveform, thermal resistance on FR-4 PCB, AEC-Q101 qualification status, and D-FLAT footprint compatibility with high-density layouts.
Technical Context
This unidirectional TVS diode operates in avalanche breakdown mode to clamp transient overvoltages above its reverse standoff voltage (VRWM = 33V) while maintaining low leakage (<1.0 µA). Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device responds within picoseconds to transients and delivers 600W peak pulse power handling per the standardized 10×1000µs waveform. Thermal performance is defined by RθJA = 92°C/W on a 0.4" × 0.5" 2oz copper pad - critical for sustained surge duty in automotive engine control units and body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10×1000µs transients without failure in automotive environments |
| Reverse Standoff Voltage | 33V - maximum continuous DC or RMS voltage before clamping initiates |
| Max Clamping Voltage | 53.3V @ 11.3A - limits downstream IC voltage stress during worst-case surge events |
| Breakdown Voltage | 36.7–42.2V @ 1.0mA - defines precise avalanche onset range for design margining |
| Thermal Resistance JA | 92°C/W - enables thermal design on compact 0.4" × 0.5" 2oz copper pad |
| Operating Temp Range | −55°C to +150°C - supports under-hood and transmission control module placement |
Pinout & Package
Package: D-FLAT (2-pin surface-mount), molded plastic case, UL 94V-0 rated, cathode band polarity indicator, 0.035g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode of internal avalanche diode | Connected to protected line; clamps positive transients to ground when referenced to Pin 2 |
| 2 (Anode) | Cathode of internal avalanche diode | Typically tied to system ground; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable breakdown voltage and low parameter drift over temperature and lifetime |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, chassis, and body control modules |
| Low-profile D-FLAT package | Reduces board space by >40% vs. SMA while maintaining 600W surge rating |
| Lead-free, halogen- and antimony-free | Meets RoHS 3 and automotive green material requirements (Br+Cl <1500ppm, Sb <1000ppm) |
Applications
| Automotive Engine Control Unit (ECU) | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 12V supply input and CAN bus lines from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power rail and ground. Use Value: Limits transient voltage to ≤53.3V, preventing damage to MCU, CAN transceivers, and voltage regulators. | Use Scenario: Shields LIN bus and sensor inputs (e.g., door lock actuators, ambient light sensors) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on signal lines with minimal signal distortion. Use Value: Delivers sub-1µA leakage at 33V and fast response to ±8kV contact ESD per IEC 61000-4-2. |
| Automotive Infotainment Power Supply | ADAS Camera Module Interface |
Use Scenario: Guards USB, SD card, and display power rails against hot-swap and inductive switching spikes. IC Role / Device Role / Timing Role: Primary overvoltage protection stage upstream of DC-DC converters. Use Value: Withstands 60A surge current (IFSM) and maintains 1.0W steady-state dissipation during extended operation. | Use Scenario: Safeguards FPD-Link III or GMSL serial interface lines from ESD and board-level transients. IC Role / Device Role / Timing Role: Signal-line TVS with low capacitance (typ. 120pF at 0V) to preserve high-speed data integrity. Use Value: Clamps transients without degrading 3Gbps video signal eye diagram or introducing jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-Q | Same 33V VRWM and 53.3V VC, but SMA package (higher RθJA = 115°C/W) and no AEC-Q101 certification | Not qualified for automotive PPAP; limited to industrial/commercial designs | Select when cost sensitivity outweighs automotive compliance and thermal constraints allow larger footprint |
| TPSMAJ33A | Identical electrical specs and D-FLAT package, but manufactured by STMicroelectronics; RoHS-compliant, not AEC-Q101 certified | Lacks PPAP documentation and IATF16949 manufacturing traceability | Use only in non-safety-critical aftermarket or consumer-grade systems where qualification is not mandated |
Compared with SMAJ33A-Q and TPSMAJ33A, P6SMAJ33ADFQ-13 uniquely combines AEC-Q101 qualification, IATF16949 production, and optimized thermal resistance (92°C/W) - making it the sole choice for Tier-1 automotive power rail protection requiring full change control and PPAP submission.
Availability
P6SMAJ33ADFQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and infotainment power supplies requiring stable component supply across multi-year vehicle production cycles.
Supply support for P6SMAJ33ADFQ-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, serving automotive, industrial, computing, and consumer markets with a focus on high-reliability, qualified components.
The P6SMAJ series belongs to Diodes' automotive-grade TVS portfolio, engineered specifically for robust transient suppression in harsh environments - emphasizing AEC-Q101 compliance, PPAP readiness, and IATF16949-certified manufacturing.
FAQ
What is the maximum clamping voltage of P6SMAJ33ADFQ-13 and under what test condition?
The maximum clamping voltage is 53.3V, measured at 11.3A peak pulse current using the standardized 10×1000µs double-exponential waveform per IEC 61000-4-5. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range of −55°C to +150°C.
Is P6SMAJ33ADFQ-13 suitable for bidirectional transient protection?
No - P6SMAJ33ADFQ-13 is a unidirectional TVS diode designed only for clamping positive transients on DC-biased lines. For bidirectional protection (e.g., AC lines or data buses with no DC bias), a symmetrical device such as P6SMBJ33CA-13 must be used, as this part lacks reverse breakdown capability and will conduct continuously if reverse-biased beyond its 33V standoff rating.
How does the D-FLAT package improve thermal performance over standard SMA?
The D-FLAT package reduces thermal resistance from junction-to-ambient (RθJA) to 92°C/W on a 0.4" × 0.5" 2oz copper pad, versus 115°C/W for SMA packages under identical conditions. This 20% improvement enables higher sustained surge duty cycles and allows placement in thermally constrained locations like near microcontrollers or power MOSFETs without derating.
Does P6SMAJ33ADFQ-13 meet automotive ESD immunity standards?
Yes - while not directly tested to IEC 61000-4-2, its 600W peak pulse rating, sub-1µA leakage at 33V, and <1ns response time enable robust protection against ±8kV contact and ±15kV air-gap ESD events when properly laid out with short traces and low-inductance grounding. Its AEC-Q101 qualification confirms reliability under automotive ESD stress profiles.
P6SMAJ33ADFQ-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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 11.3A
- 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
P6SMAJ33ADFQ-13 FAQ
1.How can I place an order for P6SMAJ33ADFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ33ADFQ-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 P6SMAJ33ADFQ-13 reliable?
The price and inventory of P6SMAJ33ADFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ33ADFQ-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ33ADFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ33ADFQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ33ADFQ-13?
P6SMAJ33ADFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ33ADFQ-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 P6SMAJ33ADFQ-13?
For technical support, including P6SMAJ33ADFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ33ADFQ-13 requirements.
6.How does Aetrix verify that P6SMAJ33ADFQ-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ33ADFQ-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 P6SMAJ33ADFQ-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ33ADFQ-13?
All P6SMAJ33ADFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ33ADFQ-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 P6SMAJ33ADFQ-13 part is unused and in its original packaging.
Return procedure for P6SMAJ33ADFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ33ADFQ-13 Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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