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Diodes Incorporated DFLZ10-7
- Part No.:
- DFLZ10-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLZ10-7.pdf
- Description:
- DIODE ZENER 10V 1W POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:12,215
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Product details
Overview
DFLZ10-7 from Diodes Incorporated is a 10V, 1W surface-mount power Zener diode in PowerDI123 package, rated for ±5% zener voltage tolerance at 50mA test current, with 7.5Ω maximum zener impedance and 5µA maximum reverse leakage at 7.6V, used for precision voltage regulation and overvoltage protection in DC power rails.
For engineers reviewing the DFLZ10-7 datasheet, DFLZ10-7 pinout, DFLZ10-7 application, or DFLZ10-7 equivalent, key selection criteria include zener voltage stability across temperature (±0.05%/°C to +0.09%/°C), thermal resistance junction-to-soldering point (9°C/W), JEDEC-qualified reliability, and automotive-grade variant availability (DFLZ10Q-7).
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. It features a low thermal resistance (9°C/W) and is qualified to AEC-Q standards for high-reliability applications.
Its 1W power dissipation rating is specified on FR-4 PCB with 2 oz. copper and 1"x1" pad layout. The device uses a cathode band marking for polarity identification and employs matte tin annealed terminals for robust solderability per MIL-STD-202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V nominal, 9.4–10.6 V range at IZT = 50 mA - ensures tight regulation for 10V reference designs |
| Power Dissipation (PD) | 1.0 W on FR-4 PCB - supports sustained operation in compact power supply feedback paths |
| Zener Impedance (ZZT) | ≤ 7.5 Ω at IZT = 50 mA - minimizes output voltage variation under dynamic load changes |
| Reverse Leakage (IR) | ≤ 5 µA at VR = 7.6 V - preserves low quiescent current in battery-backed circuits |
| Temp. Coefficient (αVZ) | +0.05 to +0.09 %/°C - enables predictable drift compensation in temperature-sensitive references |
| Thermal Resistance (RθJS) | 9 °C/W - allows efficient heat transfer to PCB ground plane without heatsinking |
| Operating Temp. Range | −55°C to +150°C - suitable for under-hood automotive and industrial environments |
Pinout & Package
Package: PowerDI123 - surface-mount, single-diode configuration with cathode band marking; molded green plastic housing (UL 94V-0), 0.01 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener operation; forms current path during breakdown |
| Cathode | Reverse breakdown terminal | Marked with band; connected to higher-potential node; defines regulated output voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| 1W Power Rating on Standard PCB | Enables use in space-constrained power supplies without external heatsinks or derating penalties |
| AEC-Q Qualified Reliability | Validated for automotive electronics per JEDEC standards - supports long-term deployment in safety-critical systems |
| Green, Halogen-Free Construction | Meets RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb) |
| Cathode Band Polarity Marking | Ensures unambiguous orientation during automated placement and visual inspection on production lines |
| Matte Tin Annealed Terminals | Guarantees reliable solder wetting and intermetallic formation per MIL-STD-202, Method 208 |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Regulating 10V reference for microcontroller ADC and sensor biasing in BCM power domain. IC Role / Device Role / Timing Role: Precision voltage reference and transient clamp for 12V rail-derived subsystems. Use Value: Maintains ADC accuracy across −40°C to +125°C ambient while suppressing load dump spikes up to 35V. | Use Scenario: Protecting 4–20mA loop receiver inputs against ESD and field-wiring faults. IC Role / Device Role / Timing Role: Overvoltage shunt limiter placed before op-amp input stage. Use Value: Limits input voltage to ≤10.6V with <5µA leakage, preserving signal integrity and preventing op-amp saturation. |
| Telecom Power Supply Feedback | Medical Infusion Pump Voltage Monitor |
Use Scenario: Providing stable 10V reference for TL431-based isolated feedback in 48V telecom PSUs. IC Role / Device Role / Timing Role: Secondary-side Zener reference for optocoupler-driven regulation loop. Use Value: Delivers ±5% voltage accuracy and <7.5Ω dynamic impedance to minimize regulation error under line/load transients. | Use Scenario: Monitoring battery pack voltage in portable infusion pumps with low-power MCU supervision. IC Role / Device Role / Timing Role: Low-leakage voltage threshold detector feeding comparator input. Use Value: Draws only 5µA at 7.6V reverse bias, extending battery life while enabling accurate undervoltage lockout at 9.4V. |
Availability
DFLZ10-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog input stages, telecom power supply feedback networks, and medical battery-monitoring circuits requiring stable component supply and long-lifecycle support.
Supply support for DFLZ10-7 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.
The DFLZ series belongs to Diodes' Power Discrete product line, engineered specifically for high-reliability voltage regulation and transient suppression in automotive, industrial, and communications infrastructure applications.
FAQ
What is the maximum power dissipation of DFLZ10-7 under standard PCB conditions?
The DFLZ10-7 is rated for 1.0 W power dissipation when mounted on a 1.5" × 1.5" FR-4 PCB with 2 oz. copper and a 1" × 1" copper pad layout. Derating begins above +25°C ambient, following the curve in Figure 1 of DS30464 Rev. 15–2, reaching zero dissipation at +150°C.
How does the temperature coefficient affect voltage regulation accuracy over temperature?
DFLZ10-7 exhibits a positive temperature coefficient ranging from +0.05%/°C to +0.09%/°C. Over a −40°C to +125°C junction range, this results in a total zener voltage shift of approximately ±0.9V (±9%), which must be accounted for in precision reference designs using calibration or compensation techniques.
Is DFLZ10-7 suitable for automotive applications?
Yes - the DFLZ10-7 is qualified to JEDEC reliability standards referenced in AEC-Q, and an automotive-compliant version (DFLZ10Q-7) is available under a separate datasheet. Both variants share identical electrical specs but differ in qualification documentation and traceability protocols required for automotive Tier-1 supply chains.
What is the meaning of the "-7" suffix in DFLZ10-7?
The "-7" suffix denotes tape-and-reel packaging: 3,000 units per reel in PowerDI123 package. The base part number DFLZ10 defines the 10V Zener specification; "-7" and "-13" (10,000/reel) are packaging options defined in the Ordering Information section of DS30464.
DFLZ10-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 7.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
DFLZ10-7 FAQ
1.How can I place an order for DFLZ10-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLZ10-7 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 DFLZ10-7 reliable?
The price and inventory of DFLZ10-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLZ10-7 is usually 5 days.
3.What payment methods are accepted for DFLZ10-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLZ10-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLZ10-7?
DFLZ10-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLZ10-7 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 DFLZ10-7?
For technical support, including DFLZ10-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLZ10-7 requirements.
6.How does Aetrix verify that DFLZ10-7 is sourced from the original manufacturer or authorized distributors?
All DFLZ10-7 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 DFLZ10-7 meets industry standards.
7.What is the process for return or replacement of DFLZ10-7?
All DFLZ10-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLZ10-7, 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 DFLZ10-7 part is unused and in its original packaging.
Return procedure for DFLZ10-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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