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Diodes Incorporated DFLT10A-7
- Part No.:
- DFLT10A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLT10A-7.pdf
- Description:
- TVS DIODE 10VWM 17VC POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:5,098
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Product details
Overview
DFLT10A-7 from Diodes Incorporated is a unidirectional transient voltage suppressor (TVS) diode in PowerDI123 package, designed for primary overvoltage protection on DC power rails and signal lines. It features 10 V reverse standoff voltage, 17.0 V max clamping voltage at 13.2 A peak pulse current, and 225 W peak pulse power dissipation (10/1000 µs waveform), suitable for automotive infotainment power input protection.
For engineers reviewing the DFLT10A-7 datasheet, DFLT10A-7 pinout, DFLT10A-7 application, or DFLT10A-7 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, IPP capability under ISO 7637-2 Pulse 1/2a/5a waveforms, thermal resistance (RθJS = 6 °C/W), and AEC-Q101 qualification status.
Technical Context
This TVS operates as a silicon avalanche diode with sharp reverse breakdown at 11.1–12.3 V (VBR @ 1.0 mA), providing fast response (<1 ns) to transients while maintaining low leakage (<2.5 µA @ 10 V). Its unidirectional configuration enables use on positive-rail-only protection paths without polarity reversal concerns.
The device leverages a planar junction structure optimized for high surge robustness and stable clamping across temperature (–65 °C to +150 °C). Its RθJS of 6 °C/W ensures efficient heat transfer to the PCB cathode pad, supporting sustained operation under repetitive surges when mounted per recommended 1-inch² 2 oz copper pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 10 V - Maximum continuous DC operating voltage before significant leakage begins. |
| Breakdown Voltage (VBR) | 11.1–12.3 V @ 1.0 mA - Confirmed avalanche onset range ensuring reliable triggering during transients. |
| Max Clamping Voltage (VC) | 17.0 V @ IPP = 13.2 A - Limits voltage seen by downstream circuitry during worst-case 10/1000 µs surge. |
| Peak Pulse Power (PPK) | 225 W (10/1000 µs) - Sustains automotive load-dump and ISO 7637-2 Pulse 5a energy without failure. |
| Thermal Resistance (RθJS) | 6 °C/W - Enables direct die-to-PCB thermal path for high-reliability mounting on industrial control boards. |
| Operating Temperature | –65 °C to +150 °C - Validated for under-hood automotive and industrial environments. |
Pinout & Package
Package: PowerDI123 - surface-mount, single-cathode-band marking, 3-pin outline with integrated cathode tab for thermal conduction. Dimensions: 1.78 mm × 3.70 mm × 0.98 mm (L × W × H), weight ≈ 0.01 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink input | Connected to protected line (e.g., 12 V rail); conducts surge current into cathode during overvoltage event. |
| Cathode | Reference/return path | Internally bonded to exposed metal tab; must be soldered to large copper pour for thermal and current return integrity. |
| Case / Tab | Thermal & electrical common | Electrically tied to cathode; provides primary heat dissipation path and low-inductance ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| 225 W peak pulse rating (10/1000 µs) | Meets ISO 7637-2 Pulse 5a (load dump) energy requirements for 12 V automotive systems. |
| Low clamping ratio (VC/VRWM = 1.7) | Provides tight voltage margin above 10 V rail, protecting 12 V-tolerant ICs without overdesigning downstream TVS stages. |
| PowerDI123 package with RθJS = 6 °C/W | Enables compact layout while delivering thermal performance comparable to larger SMA packages. |
| AEC-Q101 qualified variant available (DFLT10AQ) | Supports automotive production programs requiring PPAP documentation and IATF 16949 manufacturing traceability. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 12 V supply input of BCM microcontroller against battery load dump and alternator ripple. IC Role / Device Role: Primary overvoltage clamp on main power rail upstream of DC-DC converter. Use Value: Limits transient voltage to ≤17.0 V, preventing latch-up or damage to 16 V-rated LDOs and MCU IOs. |
Use Scenario: Shields 24 V digital input channel of PLC I/O module from field-wiring induced surges. IC Role / Device Role: First-line transient suppression before optocoupler or Schmitt-trigger input stage. Use Value: Withstands repeated 1 kV/500 A surges per IEC 61000-4-5 Level 4, extending field reliability beyond 10 years. |
| Automotive Infotainment Power Rail | Telecom Power Supply Interface |
Use Scenario: Guards USB-C PD controller VBUS line against hot-plug transients and ESD coupling. IC Role / Device Role: Secondary clamping device after primary fuse and common-mode choke. Use Value: Low 17.0 V clamping ensures safe operation of 20 V-rated USB PD controllers during 100 V/10 A surges. |
Use Scenario: Protects -48 V telecom power interface from lightning-induced longitudinal surges on tip/ring lines. IC Role / Device Role: Unidirectional clamp on negative rail with cathode grounded to system earth. Use Value: Stable 10 V standoff and 17.0 V clamping enable precise coordination with upstream gas discharge tubes (GDTs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A (onsemi) | Same 10 V VRWM, but higher VC = 17.5 V @ 12.3 A; SMA package with RθJA = 150 °C/W (no dedicated thermal tab). | Lacks PowerDI123's low RθJS; less suitable for high-duty-cycle industrial surges where board-level thermal management is constrained. | Select if legacy SMA footprint compatibility is required and thermal derating is acceptable. |
| P6SMB10A (Littelfuse) | Identical VRWM and VC specs, but DO-214AA package; 100 W PPK rating (10/1000 µs), lower surge robustness. | Not rated for automotive load dump; insufficient for ISO 7637-2 Pulse 5a compliance without parallel staging. | Choose only for cost-sensitive consumer applications with <100 W surge exposure. |
Compared with SMAJ10A and P6SMB10A, DFLT10A-7 delivers superior thermal performance (RθJS = 6 °C/W vs. >100 °C/W), higher surge rating (225 W vs. 100–150 W), and automotive-ready packaging-making it optimal for space-constrained, thermally demanding 12 V systems.
Availability
DFLT10A-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and telecom power interfaces requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for DFLT10A-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.
The DFLT series targets high-reliability transient suppression in automotive and industrial environments, emphasizing AEC-Q101 qualification, low clamping ratios, and thermally enhanced PowerDI packaging for robust surge handling.
FAQ
What is the maximum peak pulse current (IPP) for DFLT10A-7 under standard test conditions?
DFLT10A-7 supports a maximum peak pulse current of 13.2 A under the 10/1000 µs waveform at TA = +25°C. This value is measured at its specified clamping voltage of 17.0 V and reflects its 225 W peak pulse power rating. Derating applies above +25°C ambient per Figure 1 in DS30581 Rev. 12-2.
Is DFLT10A-7 qualified to AEC-Q101 for automotive use?
No-DFLT10A-7 is the commercial-grade version. The automotive-qualified variant is DFLT10AQ, which undergoes full AEC-Q101 stress testing, is manufactured in IATF 16949-certified facilities, and supports PPAP documentation. DFLT10A-7 shares identical electrical specs but lacks formal automotive qualification evidence.
How does the PowerDI123 package improve thermal performance versus SMA or SMC packages?
The PowerDI123 uses an exposed cathode metal tab directly bonded to the die, achieving RθJS = 6 °C/W-over 20× better than SMA's RθJA ≈ 150 °C/W. This allows >80% of surge energy to dissipate through the PCB copper, reducing junction temperature rise and enabling higher surge repetition rates in confined layouts.
Can DFLT10A-7 be used in bidirectional protection configurations?
No-it is a unidirectional TVS diode, intended only for protection on positive-rail circuits with cathode grounded. For bidirectional protection (e.g., data lines), a dual-diode array like DFLS10A or a dedicated bidirectional TVS such as SMBJ10CA is required. Using DFLT10A-7 in reverse-biased mode risks permanent breakdown due to lack of symmetric avalanche design.
DFLT10A-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 13.2A
- 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
DFLT10A-7 FAQ
1.How can I place an order for DFLT10A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLT10A-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 DFLT10A-7 reliable?
The price and inventory of DFLT10A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLT10A-7 is usually 5 days.
3.What payment methods are accepted for DFLT10A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLT10A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLT10A-7?
DFLT10A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLT10A-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 DFLT10A-7?
For technical support, including DFLT10A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLT10A-7 requirements.
6.How does Aetrix verify that DFLT10A-7 is sourced from the original manufacturer or authorized distributors?
All DFLT10A-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 DFLT10A-7 meets industry standards.
7.What is the process for return or replacement of DFLT10A-7?
All DFLT10A-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLT10A-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 DFLT10A-7 part is unused and in its original packaging.
Return procedure for DFLT10A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFLT10A-7 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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