My Inquiry
My Account
Diodes Incorporated P6SMAJ20ADFQ-13
- Part No.:
- P6SMAJ20ADFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ20ADFQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR D-F
- Quantity:
- Payment:
- Shipping:
Inventory:8,956
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMAJ20ADFQ-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 20V reverse standoff voltage, 22.2–25.5V breakdown range at 1mA, 32.4V max clamping voltage at 18.5A peak pulse current, and is optimized for ESD/surge immunity in 12V/24V vehicle subsystems including infotainment power rails and body control modules.
For engineers reviewing the P6SMAJ20ADFQ-13 datasheet, P6SMAJ20ADFQ-13 pinout, P6SMAJ20ADFQ-13 application, or P6SMAJ20ADFQ-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, peak pulse power derating above +25°C, thermal resistance to terminal (57°C/W on 0.4"×0.5" PCB pad), 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-type overvoltage protector, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage (<1µA at 20V) and fast response (<1ns) to transients such as ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events.
The device uses a low-inductance D-FLAT package with cathode band polarity marking and matte tin–annealed copper lead-frame for robust solderability. Thermal performance is defined for two PCB mounting conditions: RθJA = 92°C/W (0.4"×0.5" pad) and 115°C/W (1"×1" pad), enabling accurate junction temperature estimation under repetitive surge duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (10×1000µs waveform; defines maximum transient energy absorption capability) |
| Reverse Standoff Voltage | 20V (maximum continuous DC or RMS voltage before significant leakage) |
| Breakdown Voltage | 22.2–25.5V @ 1mA (guaranteed conduction onset window for design margining) |
| Clamping Voltage | 32.4V @ 18.5A IPP (voltage seen by protected circuit during worst-case surge) |
| Leakage Current | ≤1.0µA @ 20V (ensures minimal standby power loss in always-on automotive modules) |
| Package | D-FLAT (2-pin, 2.25–2.95mm width × 3.95–4.60mm length; enables <1.5mm board height) |
| AEC-Q101 Qualified | Yes (validates reliability for automotive underhood/infotainment applications per stress test requirements) |
Pinout & Package
Package: D-FLAT - low-profile, surface-mount, molded plastic case (UL 94V-0), cathode-banded polarity, 0.035g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink node | Connected to protected line; conducts surge current to ground when voltage exceeds VBR |
| 2 (Anode) | Reference/ground return path | Typically tied to system ground plane; completes shunt path for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable electrical parameters and long-term reliability under thermal cycling and humidity exposure |
| 600W peak pulse rating | Supports compliance with ISO 7637-2 Pulse 5a (load dump) in 12V systems without external series impedance |
| Low clamping ratio (VC/VRWM ≈ 1.62) | Minimizes overvoltage stress on downstream 24V-rated components during surge events |
| AEC-Q101 qualification & IATF16949 manufacturing | Validates production consistency and failure rate limits required for Tier-1 automotive supply chains |
| D-FLAT footprint | Reduces board area by >40% vs. SMA while maintaining comparable thermal performance on compact pads |
Applications
| Automotive Infotainment Power Rail Protection | Body Control Module (BCM) CAN Transceiver Supply |
|---|---|
Use Scenario: Protecting 5V/3.3V DC-DC converter outputs feeding head unit processors and display drivers from load dump coupling and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS placed between VOUT and GND, clamping transients within 1ns to prevent latch-up or gate oxide damage. Use Value: 32.4V clamping ensures safe margin below 36V absolute maximum rating of typical buck controller ICs. | Use Scenario: Safeguarding 12V supply input to isolated CAN FD transceivers in door modules exposed to ISO 7637-2 Pulse 1 (inductive switch-off). IC Role / Device Role / Timing Role: Unidirectional TVS connected across transceiver VCC–GND pins to clamp negative-going spikes before they reach internal LDOs. Use Value: ≤1µA leakage at 20V prevents measurable quiescent current increase in always-on wake-up circuits. |
| ADAS Camera Module Power Input | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Guarding 12V input to image sensor SoCs and MIPI CSI-2 serializers against ESD (IEC 61000-4-2 ±15kV contact) and conducted surges. IC Role / Device Role / Timing Role: First-line defense placed upstream of input filter capacitors; absorbs >90% of transient energy before reaching filtering stage. Use Value: D-FLAT package capacitance (~30pF at 0V) avoids signal integrity degradation on high-speed video lines. | Use Scenario: Protecting analog sensor supply (5V) and LIN bus lines in EPS torque sensors subjected to battery reversal and jump-start conditions. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P6SMAJ20ADFQ-13 used on positive rail only due to known polarity of fault events. Use Value: AEC-Q101 qualification confirms survivability through 1000 thermal cycles (−40°C to +125°C), matching EPS under-hood lifetime requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A-Q | Same 20V VRWM, but SMA package (higher RθJA = 150°C/W); not AEC-Q101 qualified | Limited to industrial/commercial use; unsuitable for PPAP-controlled automotive programs | Select only for cost-sensitive non-automotive designs where board space allows larger footprint |
| 1.5SMC20AQ | 600W rating, same VRWM, but SMC package (3.5mm height); AEC-Q101 qualified | Higher profile increases risk of mechanical interference in slim infotainment enclosures | Prefer when thermal budget permits larger pad area and height tolerance exceeds 1.3mm |
Compared with SMAJ20A-Q and 1.5SMC20AQ, P6SMAJ20ADFQ-13 uniquely combines AEC-Q101 qualification, D-FLAT low-profile packaging, and 57°C/W thermal resistance-making it optimal for space-constrained, thermally demanding automotive modules requiring zero-defect supply chain traceability.
Availability
P6SMAJ20ADFQ-13 is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, ADAS camera power supplies, and electric power steering sensor interfaces requiring stable component supply with full AEC-Q101 documentation and IATF16949 traceability.
Supply support for P6SMAJ20ADFQ-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 protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.
The P6SMAJxxADFQ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in automotive power networks where space, thermal performance, and qualification rigor are critical.
FAQ
What is the maximum operating temperature for P6SMAJ20ADFQ-13?
The device supports continuous operation from −55°C to +150°C junction temperature. At ambient temperatures above +25°C, derating applies: peak pulse power decreases linearly to 50% at +125°C ambient (per Figure 3 in DS42231). PCB layout must maintain specified copper pad dimensions to achieve rated thermal resistance.
Does P6SMAJ20ADFQ-13 meet ISO 7637-2 Pulse 5a requirements?
Yes-its 600W peak pulse rating and 32.4V clamping voltage at 18.5A enable compliance with ISO 7637-2 Pulse 5a (load dump) in 12V systems when used with appropriate series impedance (e.g., 1Ω inline resistor). Full validation requires system-level testing per vehicle manufacturer specifications.
How does the D-FLAT package improve thermal performance versus SMA?
The D-FLAT package achieves 57°C/W RθJT on a 0.4"×0.5" pad-37% lower than typical SMA's ~90°C/W-due to shorter thermal path from die to copper pad and larger metalized bottom surface area. This allows higher sustained surge repetition rates without exceeding TJ(max) = +150°C.
Is P6SMAJ20ADFQ-13 suitable for bidirectional transient suppression?
No-it is a unidirectional TVS diode intended for DC power rail protection only. For AC or bidirectional signal lines (e.g., LIN, CAN), a bidirectional variant like P6SMBJ20CA-Q must be selected. Using this part on reversed-polarity lines risks permanent forward conduction and failure.
P6SMAJ20ADFQ-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):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 18.5A
- 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
P6SMAJ20ADFQ-13 FAQ
1.How can I place an order for P6SMAJ20ADFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ20ADFQ-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 P6SMAJ20ADFQ-13 reliable?
The price and inventory of P6SMAJ20ADFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ20ADFQ-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ20ADFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ20ADFQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ20ADFQ-13?
P6SMAJ20ADFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ20ADFQ-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 P6SMAJ20ADFQ-13?
For technical support, including P6SMAJ20ADFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ20ADFQ-13 requirements.
6.How does Aetrix verify that P6SMAJ20ADFQ-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ20ADFQ-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 P6SMAJ20ADFQ-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ20ADFQ-13?
All P6SMAJ20ADFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ20ADFQ-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 P6SMAJ20ADFQ-13 part is unused and in its original packaging.
Return procedure for P6SMAJ20ADFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ20ADFQ-13 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
