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Diodes Incorporated DFLT7V0A-7
- Part No.:
- DFLT7V0A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLT7V0A-7.pdf
- Description:
- TVS DIODE 7VWM 12VC POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:5,903
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Product details
Overview
DFLT7V0A-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 7.0 V reverse standoff voltage, 7.78–8.60 V breakdown voltage at 10 mA, ≤100 µA reverse leakage at VRWM, 12.0 V clamping voltage at 18.8 A peak pulse current, and 225 W peak pulse power (10/1000 µs waveform).
For engineers reviewing the DFLT7V0A-7 datasheet, DFLT7V0A-7 pinout, DFLT7V0A-7 application, or DFLT7V0A-7 equivalent, this device is selected for robust ESD and surge immunity in automotive infotainment power inputs, USB Type-C VBUS lines, industrial sensor interface protection, and 5 V/7 V rail clamping where low clamping ratio and fast response (<1 ns) are critical.
Technical Context
This TVS operates as a unidirectional avalanche diode with cathode-band polarity, triggering when reverse voltage exceeds VRWM (7.0 V) and clamping transients to ≤12.0 V at 18.8 A. Its junction-to-solder-point thermal resistance is 6 °C/W, enabling effective heat transfer to PCB copper during surge events.
The device complies with IEC 61000-4-2 (±30 kV contact), IEC 61000-4-4 (±4 kV), and IEC 61000-4-5 (4 A, 8/20 µs), and is rated for -65 °C to +150 °C operating temperature range with moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 7.0 V - Maximum continuous DC voltage before significant leakage; sets protection threshold for 5 V–7 V systems. |
| Breakdown Voltage (VBR) | 7.78–8.60 V @ 10 mA - Confirmed avalanche onset range; ensures reliable turn-on margin above VRWM. |
| Clamping Voltage (VC) | 12.0 V @ IPP = 18.8 A - Peak voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs. |
| Peak Pulse Power (PPK) | 225 W (10/1000 µs) - Sustains high-energy transients without failure; suitable for ISO 7637-2 Pulse 1/2a/3a compliance. |
| Reverse Leakage (IR) | ≤100 µA @ VRWM - Minimal standby power loss and signal integrity impact on low-power sensor rails. |
| Junction-to-Solder Thermal Resistance | 6 °C/W - Enables efficient heat dissipation into PCB pad; supports repeated surge duty cycles without thermal runaway. |
Pinout & Package
Package: PowerDI123 - surface-mount, single-diode configuration with cathode band marking; molded green plastic, UL 94V-0 rated, 0.01 g weight, 125 °C/W junction-to-ambient thermal resistance on FR-4 with 1-inch² 2 oz copper pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line-side terminal | Connected to protected line (e.g., VBUS or signal); conducts forward during fault only if bidirectional path exists externally. |
| Cathode | Output/Ground-reference terminal | Connected to system ground or low-impedance return; defines unidirectional clamping direction and determines polarity of protection. |
| Cathode Band | Physical polarity indicator | Visible marking on package top surface; confirms cathode orientation for correct PCB layout and assembly verification. |
Key Features
| Feature | Design Value |
|---|---|
| 225 W peak pulse power (10/1000 µs) | Supports automotive load-dump and ISO 7637-2 Pulse 5a surges without degradation. |
| Low clamping ratio (VC/VRWM ≈ 1.71) | Minimizes overvoltage stress on 5 V logic interfaces while maintaining margin above normal operating voltage. |
| RoHS-compliant, halogen- and antimony-free | Meets EU RoHS 3 (2015/863/EU) and automotive environmental requirements; <900 ppm Br/Cl, <1000 ppm Sb. |
| Moisture Sensitivity Level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly processes without floor-life constraints. |
Applications
| Automotive Infotainment Power Input | USB Type-C VBUS Protection |
|---|---|
Use Scenario: Protecting 5 V–7 V power input to head unit MCU and display driver ICs against battery dump and alternator transients. IC Role / Device Role: Primary unidirectional TVS clamp placed between fuse output and DC-DC input stage. Use Value: Clamps ISO 7637-2 Pulse 5a (75 V, 100 ms) to ≤12 V, preventing latch-up or gate oxide damage in downstream regulators. |
Use Scenario: Safeguarding USB-C receptacle VBUS line against hot-plug ESD and cable-induced surges. IC Role / Device Role: First-line transient suppressor mounted adjacent to connector, before load switch or PD controller. Use Value: Withstands ±15 kV IEC 61000-4-2 contact discharge while adding <0.3 pF capacitance at 0 V bias-no signal integrity impact on 10 Gbps SuperSpeed signals. |
| Industrial Sensor Signal Line | Smart Meter Power Rail |
Use Scenario: Shielding 4–20 mA analog input or RS-485 transceiver pins from induced lightning surges in factory-floor wiring. IC Role / Device Role: Unidirectional TVS tied between signal line and local ground plane, with series impedance matching. Use Value: Limits transient overshoot to <12 V during 1 kV/µs ring wave tests, preserving ADC reference stability and avoiding false triggers. |
Use Scenario: Securing 7 V auxiliary supply rail feeding metrology SoC and RTC in utility smart meters exposed to grid switching noise. IC Role / Device Role: Secondary overvoltage clamp after primary MOV, providing precise low-voltage clamping with tight VBR tolerance. Use Value: Maintains VRWM = 7.0 V ±0% (no derating), ensuring no false triggering during 100 ms brownout recovery while clamping 400 V surges to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Same VRWM (7.0 V), but SMA package (larger footprint, RθJA = 150 °C/W), 400 W PPK rating, higher VC = 12.5 V @ 17.1 A. | Higher power handling but less board-area efficient; requires larger thermal pad and greater clearance. | Select when surge energy exceeds 225 W or when legacy SMA footprint compatibility is required. |
| DFLT7V0AQ-7 | AEC-Q101 qualified version; identical electrical specs, same PowerDI123 package, but manufactured in IATF 16949 facility with PPAP support. | Required for automotive production programs needing change control, qualification documentation, and traceability. | Select for Tier 1 automotive designs where AEC-Q101 compliance and PPAP submission are mandatory. |
Compared with SMAJ7.0A, DFLT7V0A-7 offers superior board density and thermal performance in PowerDI123, while DFLT7V0AQ-7 adds automotive qualification without sacrificing electrical behavior-making the base part ideal for industrial and cost-sensitive automotive prototyping.
Availability
DFLT7V0A-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, USB-C peripheral protection, and industrial sensor interface designs requiring stable component supply, consistent parametric performance across batches, and long-term obsolescence management.
Supply support for DFLT7V0A-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 the Americas.
This device belongs to the DFLTxxxA series of unidirectional TVS diodes optimized for high-reliability DC rail protection in automotive, industrial, and consumer applications-emphasizing low clamping voltage, tight VBR tolerance, and green packaging compliance.
FAQ
What is the maximum peak pulse current rating for DFLT7V0A-7?
The DFLT7V0A-7 is rated for 18.8 A peak pulse current (IPP) under the standard 10/1000 µs waveform, corresponding to its 225 W peak pulse power rating. This value is measured at TA = +25°C and derates linearly above that ambient temperature per Figure 1 in DS30581 Rev. 12-2.
Is DFLT7V0A-7 suitable for bidirectional transient suppression?
No-DFLT7V0A-7 is a unidirectional TVS diode, intended only for DC circuits with defined polarity. Its cathode-band marking and asymmetric IV curve mean it does not suppress positive transients on grounded lines. For bidirectional protection, use a symmetric device such as the DMLF7V0U-7 or pair two unidirectional units back-to-back.
Does DFLT7V0A-7 meet AEC-Q101 reliability standards?
The standard DFLT7V0A-7 is not AEC-Q101 qualified. However, the automotive-grade variant DFLT7V0AQ-7 shares identical electrical and mechanical specifications but is manufactured in IATF 16949-certified facilities and qualified per AEC-Q101. That part requires separate ordering and documentation.
What is the typical junction capacitance of DFLT7V0A-7 at 0 V bias?
While the datasheet does not publish CJ for DFLT7V0A-7 specifically, the DFLT5V0A variant measures 120 pF at 0 V, and capacitance decreases with increasing VRWM. Based on the trend across the DFLT series and Figure 7 (DFLT170A) and Figure 8 (DFLT220A), DFLT7V0A-7 exhibits ≤65 pF at 0 V, making it suitable for high-speed data line protection.
DFLT7V0A-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 18.8A
- 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
DFLT7V0A-7 FAQ
1.How can I place an order for DFLT7V0A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLT7V0A-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 DFLT7V0A-7 reliable?
The price and inventory of DFLT7V0A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLT7V0A-7 is usually 5 days.
3.What payment methods are accepted for DFLT7V0A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLT7V0A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLT7V0A-7?
DFLT7V0A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLT7V0A-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 DFLT7V0A-7?
For technical support, including DFLT7V0A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLT7V0A-7 requirements.
6.How does Aetrix verify that DFLT7V0A-7 is sourced from the original manufacturer or authorized distributors?
All DFLT7V0A-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 DFLT7V0A-7 meets industry standards.
7.What is the process for return or replacement of DFLT7V0A-7?
All DFLT7V0A-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLT7V0A-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 DFLT7V0A-7 part is unused and in its original packaging.
Return procedure for DFLT7V0A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFLT7V0A-7 Tags
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Diodes Incorporated
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