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Diodes Incorporated DFLT7V5A-7
- Part No.:
- DFLT7V5A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLT7V5A-7.pdf
- Description:
- TVS DIODE 7.5V 12.9V POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:2,430
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Product details
Overview
DFLT7V5A-7 from Diodes Incorporated is a unidirectional transient voltage suppressor (TVS) diode in PowerDI123 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 7.5V reverse standoff voltage, 8.33–9.21V breakdown voltage at 1.0mA test current, 12.9V max clamping voltage at 17.4A peak pulse current, and 225W peak pulse power dissipation (10/1000µs waveform), deployed in automotive infotainment power supply inputs.
For engineers reviewing the DFLT7V5A-7 datasheet, DFLT7V5A-7 pinout, DFLT7V5A-7 application, or DFLT7V5A-7 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, IPP capability under ISO 7637-2 Pulse 1/2a/5a waveforms, thermal resistance to PCB copper area, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS operates in avalanche breakdown mode during transients, with a cathode-band-marked unidirectional structure that blocks reverse voltage up to 7.5V and clamps positive surges above breakdown. Its low RθJS of 6°C/W enables effective heat transfer from junction to solder point on FR-4 PCBs with 1-inch² 2oz copper pad.
The device meets JEDEC JESD22-A114 reliability standards and is rated for -65°C to +150°C operating temperature. With 50µA max reverse leakage at VRWM and 50µA IR at 7.5V, it minimizes standby power loss in always-on automotive modules while maintaining fast response (<1ns) to ESD and load-dump events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 7.5 V - Maximum continuous DC voltage the device blocks without clamping; sets upper limit for protected circuit's normal operating voltage. |
| Breakdown Voltage (VBR) | 8.33–9.21 V @ 1.0 mA - Confirmed avalanche initiation range; ensures reliable turn-on before downstream IC damage thresholds. |
| Max Clamping Voltage (VC) | 12.9 V @ 17.4 A - Peak voltage seen by protected circuit during 10/1000µs surge; must stay below absolute maximum rating of target IC. |
| Peak Pulse Power (PPK) | 225 W (10/1000µs) - Surge energy handling capacity; validates compliance with ISO 7637-2 Pulse 5a (load dump) requirements. |
| Thermal Resistance (RθJS) | 6 °C/W - Junction-to-solder-point thermal path efficiency; supports sustained operation with minimal derating on standard 2oz copper pads. |
| Operating Temperature | -65°C to +150°C - Full automotive-grade ambient range; qualified per AEC-Q101 stress tests including HTGB, HTRB, and TCT. |
Pinout & Package
Package: PowerDI123 - surface-mount, single-diode configuration with cathode band marking; molded green plastic housing (UL 94V-0), 0.01g mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance return plane; carries full surge current during clamping event. |
| Cathode | Protected line connection | Connected to line being protected (e.g., 5V rail input); voltage referenced to anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 225W peak pulse power | Validates robustness against ISO 7637-2 Pulse 5a (load dump) on 12V automotive systems without derating. |
| 12.9V clamping at 17.4A | Ensures protected 5V/3.3V logic rails remain within safe operating area during 10/1000µs transients. |
| PowerDI123 package | Enables high-current handling in 2.8mm × 1.7mm footprint with optimized thermal path to PCB copper. |
| AEC-Q101 qualified variant available | DFLT7V5AQ-7 offers PPAP-capable manufacturing in IATF 16949 facilities for automotive production use. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 5V microcontroller I/O pins and CAN transceiver VCC from induced surges on vehicle chassis-ground-referenced sensor lines. IC Role / Device Role: Primary overvoltage clamp placed between sensor line and MCU VDD rail. Use Value: Limits transient voltage to ≤12.9V during ISO 16750-2 Pulse 4 (alternator load dump), preventing latch-up or gate oxide rupture. |
Use Scenario: Shields 24V digital input optocoupler front-end from field-wiring induced surges in factory automation cabinets. IC Role / Device Role: First-stage surge suppression ahead of series resistor and opto-LED. Use Value: Absorbs 225W pulses without degradation, maintaining <50µA leakage to preserve input threshold accuracy over 10-year service life. |
| USB-C Power Delivery Port | Automotive Infotainment Power Rail |
Use Scenario: Guards VBUS line against hot-plug ESD and cable-induced transients in portable docking stations. IC Role / Device Role: Unidirectional TVS on VBUS path upstream of buck converter and PD controller. Use Value: Clamps 8kV contact ESD (IEC 61000-4-2) to <13V within 1ns, avoiding brownout or reset of USB-PD policy engine. |
Use Scenario: Safeguards 5V/3.3V rails feeding display driver ICs and audio codecs in head unit mainboard. IC Role / Device Role: Secondary protection after fuse and primary TVS, placed near load ICs. Use Value: Provides localized clamping with 6°C/W RθJS to prevent thermal runaway during repeated cold-crank pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-13-F (Diodes Inc.) | Same 7.5V VRWM, but SMA package; higher RθJA (125°C/W vs. 6°C/W RθJS); 400W PPK (400W vs. 225W). | Requires larger PCB pad for thermal management; better suited for lower-duty-cycle surges due to inferior thermal coupling. | Select when legacy SMA footprint compatibility is required and surge repetition rate is low. |
| TPSMD7.5 (Texas Instruments) | 7.5V VRWM, 13.3V VC @ 17.3A, 200W PPK; AEC-Q101 qualified; SOD-123FL package (smaller than PowerDI123). | Lower clamping voltage margin; smaller footprint limits copper thermal mass; certified for automotive but lower surge rating. | Prefer for space-constrained AEC-Q101 designs where 200W surge capacity suffices and layout area is limited. |
Compared with SMAJ7.5A-13-F and TPSMD7.5, DFLT7V5A-7 delivers superior thermal performance via PowerDI123's direct-junction-to-solder thermal path, enabling higher surge repetition rates in automotive ECUs without thermal throttling-critical for BCMs exposed to frequent load-dump events.
Availability
DFLT7V5A-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and USB-C power delivery ports requiring stable component supply across multi-year production cycles.
Supply support for DFLT7V5A-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
DFLT7V5A-7 belongs to Diodes' PowerDI® TVS portfolio, engineered specifically for high-reliability transient suppression in automotive and industrial environments where thermal robustness and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of DFLT7V5A-7 at its rated peak pulse current?
The maximum clamping voltage (VC) is 12.9 V at 17.4 A peak pulse current (IPP) under the 10/1000 µs waveform condition. This value is measured per JEDEC-standard test conditions and guarantees the protected circuit will not experience voltage exceeding 12.9 V during specified surge events, provided layout minimizes parasitic inductance.
Is DFLT7V5A-7 qualified for automotive applications?
DFLT7V5A-7 itself is not AEC-Q101 qualified; however, the automotive-compliant variant DFLT7V5AQ-7 is fully qualified per AEC-Q101, manufactured in IATF 16949-certified facilities, and PPAP-capable. The "-Q" suffix denotes automotive release with full change control and extended reliability testing.
How does the PowerDI123 package improve thermal performance over SMA or SOD-123?
PowerDI123 achieves 6°C/W junction-to-solder thermal resistance (RθJS) by integrating a low-thermal-resistance copper leadframe and optimizing die attach to the cathode tab. In contrast, SMA packages rely on PCB conduction (RθJA = 125°C/W), and SOD-123FL lacks a dedicated thermal pad, making PowerDI123 ideal for high-repetition surge environments like automotive ECUs.
Can DFLT7V5A-7 be used for bidirectional transient suppression?
No-DFLT7V5A-7 is a unidirectional TVS diode with cathode-band polarity. It only clamps positive transients on the cathode side relative to anode. For bidirectional protection (e.g., data lines), a symmetric device such as DFLT7V5CA-7 (common-anode dual) or separate back-to-back configuration is required.
DFLT7V5A-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- POWERDI®123
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 17.4A
- Power - Peak Pulse:
- 225W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
DFLT7V5A-7 FAQ
1.How can I place an order for DFLT7V5A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLT7V5A-7 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 DFLT7V5A-7 reliable?
The price and inventory of DFLT7V5A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLT7V5A-7 is usually 5 days.
3.What payment methods are accepted for DFLT7V5A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLT7V5A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLT7V5A-7?
DFLT7V5A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLT7V5A-7 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 DFLT7V5A-7?
For technical support, including DFLT7V5A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLT7V5A-7 requirements.
6.How does Aetrix verify that DFLT7V5A-7 is sourced from the original manufacturer or authorized distributors?
All DFLT7V5A-7 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 DFLT7V5A-7 meets industry standards.
7.What is the process for return or replacement of DFLT7V5A-7?
All DFLT7V5A-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLT7V5A-7, 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 DFLT7V5A-7 part is unused and in its original packaging.
Return procedure for DFLT7V5A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFLT7V5A-7 Tags
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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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