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Diodes Incorporated P6SMAJ22ADFQ-13
- Part No.:
- P6SMAJ22ADFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ22ADFQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR D-F
- Quantity:
- Payment:
- Shipping:
Inventory:9,777
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Product details
Overview
P6SMAJ22ADFQ-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 22V reverse standoff voltage, 24.4–28.0V breakdown range at 1mA, 35.5V clamping voltage at 16.9A peak pulse current, and is rated for -55°C to +150°C operation.
For engineers reviewing the P6SMAJ22ADFQ-13 datasheet, P6SMAJ22ADFQ-13 pinout, P6SMAJ22ADFQ-13 application, or P6SMAJ22ADFQ-13 equivalent, key selection criteria include clamping performance under 10/1000µs transients, thermal resistance (RθJA = 92°C/W on 0.4"×0.5" PCB), AEC-Q101 qualification status, and D-FLAT footprint compatibility with high-density automotive PCB layouts.
Technical Context
This unidirectional TVS diode operates as a fast-acting shunt protector, clamping transient overvoltages above its breakdown threshold while maintaining low leakage (<1µA at 22V) and low forward voltage (3.5V @ 35A). Its glass-passivated junction ensures stable VBR and robust surge handling across temperature extremes.
The device is optimized for single-pulse 10×1000µs waveforms per IEC 61000-4-5, delivering 600W peak pulse power with <1ns response time. Its D-FLAT package enables low-inductance mounting and efficient heat dissipation via copper pad thermal coupling-critical for CAN, LIN, and sensor supply rail protection in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Sustains single 10×1000µs surges without failure in automotive load-dump or ISO 7637-2 scenarios. |
| Reverse Standoff Voltage | 22V - Maximum continuous DC operating voltage before significant leakage; sets system operating margin. |
| Breakdown Voltage | 24.4–28.0V @ 1mA - Confirmed conduction onset range; ensures reliable triggering above nominal rail. |
| Clamping Voltage | 35.5V @ 16.9A - Maximum voltage seen by protected circuit during specified transient; defines downstream IC survivability. |
| Thermal Resistance (J-A) | 92°C/W - Measured on 0.4"×0.5", 2oz FR-4 pad; enables accurate junction temperature prediction in compact ECU designs. |
| Operating Temperature | -55°C to +150°C - Validated for under-hood and transmission control module environments. |
| AEC-Q101 Qualified | Yes - Certified for automotive use with PPAP capability and IATF16949 manufacturing. |
Pinout & Package
Package: D-FLAT (low-profile surface-mount, 2-terminal, cathode-banded). Dimensions: 4.65mm × 2.80mm × 1.10mm max (L × W × H), with 0.2" × 0.25" recommended copper pad for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode Band) | Anode connection point for reverse-biased TVS operation | Connected to protected line (e.g., 24V supply rail); clamps positive transients to ground when voltage exceeds VBR. |
| 2 | Cathode connection point | Typically tied to system ground or low-impedance return path; completes shunt path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures long-term VBR stability and low parameter drift under thermal cycling and humidity stress. |
| Low-profile D-FLAT package | Reduces board space by >40% vs. SMA; supports automated placement and high-density routing in ADAS modules. |
| 600W peak pulse rating | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12V/24V automotive systems without derating. |
| AEC-Q101 qualification & IATF16949 manufacturing | Validates reliability for safety-critical applications including body control modules and battery management interfaces. |
| Halogen- and antimony-free "Green" construction | Complies with EU RoHS 3 and automotive ELV directives; contains <900ppm Br, <900ppm Cl, <1000ppm Sb. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Sensor Supply Protection |
|---|---|
Use Scenario: Protects 12V/24V power inputs in BCMs against load dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between input rail and chassis ground. Use Value: Limits clamped voltage to 35.5V, ensuring downstream PMICs and microcontrollers remain within absolute maximum ratings during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguards 5V/3.3V sensor supply lines (e.g., MAP, O2, crankshaft position sensors) from coupled ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance (≈15pF at 0V) unidirectional TVS placed at sensor connector interface. Use Value: Sub-1ns response prevents latch-up in analog front-end ICs while maintaining signal integrity on high-frequency sensor outputs. |
| CAN FD Transceiver Interface | Electric Power Steering (EPS) Motor Driver Stage |
Use Scenario: Shields CAN_H/CAN_L lines in automotive gateway modules from ESD (IEC 61000-4-2 ±25kV air) and fast transients. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; this unidirectional part used on power-supply side of transceiver (VCC line). Use Value: 1µA max leakage at 22V avoids loading CAN bias networks; 35.5V clamping protects transceiver VCC pins during battery line disturbances. |
Use Scenario: Protects gate driver IC supply rails in EPS motor inverters exposed to high dV/dt noise from 3-phase PWM switching. IC Role / Device Role / Timing Role: Primary rail clamp on 12V auxiliary supply feeding isolated gate drivers and current sense amplifiers. Use Value: 600W rating handles repetitive transients from MOSFET commutation; RθJA = 92°C/W enables thermal design without heatsinks in sealed EPS housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-Q | Same electrical specs but non-automotive grade; lacks AEC-Q101 qualification and PPAP support. | Approved only for industrial/commercial use; not permitted in OEM automotive BOMs. | Select only for cost-sensitive non-automotive designs where qualification is not required. |
| TPSMAJ22A | Identical 22V standoff and 35.5V clamping, but uses SMA package (higher RθJA ≈ 115°C/W) and lacks IATF16949 traceability. | Less effective thermal performance in high-power density modules; no automotive change control documentation. | Acceptable for lower-duty-cycle applications or legacy designs where D-FLAT footprint isn't mandatory. |
Compared with SMAJ22A-Q and TPSMAJ22A, P6SMAJ22ADFQ-13 delivers verified automotive-grade reliability through AEC-Q101 testing, tighter thermal management via D-FLAT, and full PPAP documentation-making it the sole choice for new ECU and ADAS platform designs requiring OEM compliance.
Availability
P6SMAJ22ADFQ-13 is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, electric power steering systems, and infotainment head units requiring stable component supply with full automotive qualification traceability.
Supply support for P6SMAJ22ADFQ-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' automotive-qualified TVS portfolio, engineered specifically to meet stringent ISO 7637-2 and AEC-Q101 requirements for next-generation vehicle electronics.
FAQ
What is the maximum clamping voltage for P6SMAJ22ADFQ-13 under standard test conditions?
The maximum clamping voltage is 35.5V, measured at 16.9A peak pulse current using the 10×1000µs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range (-55°C to +150°C) and defines the upper voltage limit imposed on protected circuits during surge events.
Is P6SMAJ22ADFQ-13 suitable for bidirectional transient suppression?
No. P6SMAJ22ADFQ-13 is a unidirectional TVS diode, intended for DC power line protection where polarity is fixed. It conducts only during positive transients on the anode relative to cathode. For AC or data-line applications requiring symmetrical clamping, a bidirectional variant such as P6SMBJ22ADFQ-13 must be selected.
What is the recommended PCB pad layout for optimal thermal performance?
Diodes Incorporated specifies a 0.2" × 0.25" (5.08mm × 6.35mm) copper pad on FR-4 substrate for thermal resistance of 92°C/W. The pad must be solid (no thermal relief), connected directly to internal ground planes via ≥4 vias (0.3mm diameter), and conform to IPC-7351B D-FLAT land pattern DFP1006N.
Does P6SMAJ22ADFQ-13 require derating at elevated ambient temperatures?
Yes. Peak pulse power must be linearly derated above +25°C ambient: at +85°C, maximum PPK drops to 420W (70% of 600W). Derating follows the curve in Figure 3 of DS42231 Rev. 2–2, based on junction-to-ambient thermal resistance and actual board thermal design.
P6SMAJ22ADFQ-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- 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
P6SMAJ22ADFQ-13 FAQ
1.How can I place an order for P6SMAJ22ADFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ22ADFQ-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 P6SMAJ22ADFQ-13 reliable?
The price and inventory of P6SMAJ22ADFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ22ADFQ-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ22ADFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ22ADFQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ22ADFQ-13?
P6SMAJ22ADFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ22ADFQ-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 P6SMAJ22ADFQ-13?
For technical support, including P6SMAJ22ADFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ22ADFQ-13 requirements.
6.How does Aetrix verify that P6SMAJ22ADFQ-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ22ADFQ-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 P6SMAJ22ADFQ-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ22ADFQ-13?
All P6SMAJ22ADFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ22ADFQ-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 P6SMAJ22ADFQ-13 part is unused and in its original packaging.
Return procedure for P6SMAJ22ADFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ22ADFQ-13 Tags
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