My Inquiry
My Account
Diodes Incorporated DFLT11A-7
- Part No.:
- DFLT11A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLT11A-7.pdf
- Description:
- TVS DIODE 11VWM 18.2VC PWRDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DFLT11A-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 11V reverse standoff voltage, 12.2–13.5V breakdown voltage at 1mA, 18.2V max clamping voltage at 12.4A peak pulse current, and 225W peak pulse power dissipation (10/1000µs waveform), deployed in automotive infotainment power inputs.
For engineers reviewing the DFLT11A-7 datasheet, DFLT11A-7 pinout, DFLT11A-7 application, or DFLT11A-7 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, IPP capability under ISO 7637-2 Pulse 1/2a/5a, thermal resistance (RθJS = 6°C/W), and AEC-Q101 qualification status for automotive use.
Technical Context
This TVS operates as a clamping device: below VRWM (11V), leakage remains ≤2.5µA; at IT = 1mA, VBR initiates between 12.2V and 13.5V; under 12.4A 10/1000µs surge, VC stays ≤18.2V. Its low RθJS (6°C/W) enables efficient heat transfer from junction to cathode tab.
It uses silicon avalanche technology with a single PN junction, packaged in PowerDI123 with cathode band marking. The device is rated for -65°C to +150°C operation, supports 50A non-repetitive forward surge (8.3ms half-sine), and exhibits 1.0W DC power dissipation on FR-4 with 1"² 2oz copper pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 11 V - Maximum continuous DC voltage before significant leakage; sets upper limit for protected line nominal voltage. |
| Breakdown Voltage (VBR) | 12.2–13.5 V @ 1 mA - Avalanche conduction onset range; defines minimum overvoltage threshold for clamping activation. |
| Max Clamping Voltage (VC) | 18.2 V @ 12.4 A - Peak voltage seen by downstream circuit during 10/1000µs surge; determines safe margin above IC absolute maximum rating. |
| Peak Pulse Power (PPK) | 225 W (10/1000µs) - Surge energy handling capacity; validates compliance with ISO 7637-2 Pulse 5a (load dump) in 12V systems. |
| Junction-to-Solder Point RθJS | 6 °C/W - Thermal resistance from die to cathode solder interface; enables high-power pulse dissipation without PCB heatsink. |
| Operating Temperature Range | -65°C to +150°C - Full automotive-grade ambient tolerance; supports engine bay and under-hood deployment. |
Pinout & Package
Package: PowerDI123 - surface-mount, single-ended, cathode-band marked, green molded plastic (UL 94V-0), 0.01g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to protected line (e.g., 12V supply rail); conducts surge current toward cathode during overvoltage event. |
| Cathode | Ground/reference terminal | Connected to system ground or low-impedance return path; serves as thermal interface via soldered tab (RθJS = 6°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| 225W peak pulse power (10/1000µs) | Validates robustness against ISO 7637-2 load dump transients in 12V automotive systems without derating. |
| Cathode-band polarity marking | Enables unambiguous orientation during automated placement and visual inspection on production PCBs. |
| RoHS-compliant, halogen- and antimony-free | Meets automotive ELV Directive and JIG-001 requirements for hazardous substance restriction in vehicle modules. |
| Low clamping ratio (VC/VRWM = 1.65) | Minimizes overvoltage stress on downstream 16V-tolerant power management ICs while maintaining fast response. |
Applications
| Automotive Body Control Module (BCM) Power Input | USB-C Port ESD/Transient Protection |
|---|---|
Use Scenario: Protects 12V input rail of BCM against load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role: Primary clamping TVS placed upstream of DC-DC converter input. Use Value: Limits transient voltage to ≤18.2V, ensuring downstream 24V-input buck controller remains within safe operating area. |
Use Scenario: Shields USB-C VBUS line from hot-plug induced transients and ESD events per IEC 61000-4-2 Level 4. IC Role / Device Role: Unidirectional overvoltage clamp on 5V-rated power delivery path. Use Value: Delivers 12.4A peak pulse handling with 18.2V clamping, preserving USB PD controller integrity during 15kV contact discharge. |
| Industrial PLC Digital Input Protection | Automotive Infotainment Display Backlight Supply |
Use Scenario: Guards 24V digital input channel against field-wiring induced inductive kickback and lightning-induced surges. IC Role / Device Role: Front-end transient suppressor before optocoupler or Schmitt trigger input stage. Use Value: Withstands 50A 8.3ms surge (IFSM), preventing latch-up or destruction of input conditioning circuitry. |
Use Scenario: Safeguards LED driver IC supply rail against battery reversal and alternator ripple spikes in head unit displays. IC Role / Device Role: Secondary overvoltage clamp on boosted backlight supply (typically 30–40V). Use Value: Provides 11V standoff with 18.2V clamping-compatible with 20V-rated LED driver ICs while enabling compact PowerDI123 layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same 11V VRWM, but SMA package (RθJA = 100°C/W vs. 6°C/W); 200W PPK (10/1000µs); no AEC-Q101 listing. | Limited to lower-duty-cycle surges due to higher thermal resistance; unsuitable for under-hood automotive use. | Select when cost-sensitive industrial designs require footprint compatibility with legacy SMA layouts and thermal derating is acceptable. |
| DFLT11AQ-7 | AEC-Q101 qualified version; identical electrical specs; same PowerDI123 package; PPAP-capable manufacturing. | Required for production automotive ECUs where change control, traceability, and IATF 16949 compliance are mandatory. | Choose for Tier 1 automotive programs requiring full automotive qualification documentation and controlled change management. |
Compared with SMAJ11A, DFLT11A-7 delivers superior thermal performance (RθJS = 6°C/W) and automotive-ready packaging; versus DFLT11AQ-7, it lacks formal AEC-Q101 certification but shares identical electrical behavior and mechanical form-making it suitable for non-automotive or pre-qualification prototyping.
Availability
DFLT11A-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer USB-C power delivery systems requiring stable component supply across multi-year production cycles.
Supply support for DFLT11A-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.
DFLT11A-7 belongs to Diodes' PowerDI® TVS portfolio, engineered specifically for high-reliability transient suppression in automotive and industrial environments where low clamping voltage, high surge robustness, and thermally efficient packaging are critical.
FAQ
What is the maximum allowable DC voltage applied across DFLT11A-7 in normal operation?
The maximum continuous DC voltage is the reverse standoff voltage VRWM = 11V. Operating above this level increases leakage current beyond 2.5µA and risks premature breakdown. For reliable long-term operation, system nominal voltage should be ≤80% of VRWM (i.e., ≤8.8V) to accommodate tolerance and ripple.
Does DFLT11A-7 meet AEC-Q101 requirements for automotive use?
No-DFLT11A-7 is not AEC-Q101 qualified. Diodes offers the functionally identical DFLT11AQ-7 variant, which is fully AEC-Q101 qualified, manufactured in IATF 16949-certified facilities, and supported with PPAP documentation for automotive production programs.
How does the PowerDI123 package improve thermal performance compared to SMA or SOD-123?
PowerDI123 provides direct thermal conduction from the die to the cathode tab (RθJS = 6°C/W), whereas SMA packages rely on leads for heat transfer (RθJA ≈ 100°C/W). This allows DFLT11A-7 to sustain repeated 225W surges without PCB-level heatsinking-critical for space-constrained automotive modules.
Can DFLT11A-7 be used for bidirectional transient suppression?
No-it is a unidirectional TVS diode, optimized for DC rail protection with polarity-sensitive mounting. For AC or bidirectional signal line protection (e.g., RS-485), a bidirectional variant like DFLT11CA-7 or SMAJ11CA must be selected to clamp both positive and negative transients symmetrically.
DFLT11A-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- 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
DFLT11A-7 FAQ
1.How can I place an order for DFLT11A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLT11A-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 DFLT11A-7 reliable?
The price and inventory of DFLT11A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLT11A-7 is usually 5 days.
3.What payment methods are accepted for DFLT11A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLT11A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLT11A-7?
DFLT11A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLT11A-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 DFLT11A-7?
For technical support, including DFLT11A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLT11A-7 requirements.
6.How does Aetrix verify that DFLT11A-7 is sourced from the original manufacturer or authorized distributors?
All DFLT11A-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 DFLT11A-7 meets industry standards.
7.What is the process for return or replacement of DFLT11A-7?
All DFLT11A-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLT11A-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 DFLT11A-7 part is unused and in its original packaging.
Return procedure for DFLT11A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFLT11A-7 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…
