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Diodes Incorporated DFLZ13Q-7
- Part No.:
- DFLZ13Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLZ13Q-7.pdf
- Description:
- DIODE ZENER 13V 1W POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:1,913
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Product details
Overview
DFLZ13Q-7 from Diodes Incorporated is a 13 V, 1.0 W surface-mount Zener diode in PowerDI123 package, rated for 10 Ω zener impedance at 2 mA test current, -55°C to +150°C operating range, and qualified to AEC-Q101 for automotive reliability. It provides precise voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation.
For engineers reviewing the DFLZ13Q-7 datasheet, DFLZ13Q-7 pinout, DFLZ13Q-7 application, or DFLZ13Q-7 equivalent, key selection criteria include zener voltage tolerance (±4.6%), thermal resistance junction-to-solder point (9 °C/W), surge capability via patented interlocking clip design, and RoHS-compliant, halogen-free "Green" construction.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 13 V at 2 mA test current (IZT), exhibiting a temperature coefficient of +0.05%/°C to +0.10%/°C. Its low RθJS (9 °C/W) enables stable regulation under sustained power dissipation up to 1.0 W on FR-4 PCBs with optimized pad layout.
The device uses a large exposed cathode pad for thermal conduction and features a patented interlocking clip structure (US Patent #7,095,113) that enhances surge current handling. Terminal finish is matte tin annealed over copper leadframe, ensuring robust solderability per MIL-STD-202, Method 208.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V nominal, 12.4–14.1 V range at IZT = 2 mA - ensures tight regulation tolerance in feedback networks |
| Power Dissipation (PD) | 1.0 W on FR-4 PCB - supports continuous operation in compact power supplies without forced cooling |
| Zener Impedance (ZZT) | 10 Ω max at IZT = 2 mA - minimizes output voltage variation under load transients |
| Thermal Resistance (RθJS) | 9 °C/W - enables efficient heat transfer from die to PCB solder joint, critical for automotive under-hood use |
| Operating Temperature | -55°C to +150°C - meets extended-range requirements for engine control units and ADAS modules |
| Reverse Leakage (IR) | 2 µA max at VR = 10 V - ensures low quiescent current in battery-backed reference circuits |
Pinout & Package
Package: PowerDI123 - molded plastic case with large exposed cathode pad for thermal management; UL 94V-0 flammability rating; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; forms regulated output reference point |
| Cathode | Reverse-biased Zener terminal / Heat sink interface | Exposed metal pad serves as primary thermal path to PCB; marked with band; carries full regulated current |
Key Features
| Feature | Design Value |
|---|---|
| Patented interlocking clip structure | Enables high-surge capacity per US Patent #7,095,113 - critical for load-dump transient suppression |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Halogen- and antimony-free "Green" compound | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies strict environmental compliance for global OEMs |
| Low RθJS (9 °C/W) | Direct thermal path from die to solder joint - reduces junction temperature rise by >30% vs. standard SOD-123 |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Power Supply |
|---|---|
Use Scenario: Voltage reference for microcontroller ADC and sensor biasing in under-hood ECU modules. IC Role / Device Role / Timing Role: Zener reference diode providing stable 13 V rail for analog front-end conditioning. Use Value: Tight 12.4–14.1 V tolerance and -55°C to +150°C operation ensure accuracy across extreme ambient conditions. | Use Scenario: Overvoltage clamp protecting 24 V DC input stage of programmable logic controller power module. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as shunt regulator during transient surges. Use Value: Patented clip design withstands repetitive 10 A/8.3 ms surges per ISO 7637-2, preventing downstream IC damage. |
| Medical Infusion Pump Power Management | Telecom Base Station Bias Reference |
Use Scenario: Precision voltage reference for motor driver current sensing and battery charge monitoring. IC Role / Device Role / Timing Role: Low-leakage (2 µA @ 10 V) Zener establishing stable reference for isolated feedback loop. Use Value: Minimal IR drift ensures long-term calibration stability in safety-critical drug delivery systems. | Use Scenario: Bias voltage source for RF amplifier stages requiring low-noise, temperature-stable reference. IC Role / Device Role / Timing Role: Zener diode supplying regulated 13 V to GaN FET gate drivers. Use Value: +0.05%/°C to +0.10%/°C tempco and 10 Ω ZZT maintain amplitude accuracy across 0–70°C base station operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13-7-F | 0.3 W rating, SOT-23 package, 30 Ω Zzt at 5 mA - higher impedance, lower power handling | Suitable for low-current signal-level references only; not rated for AEC-Q101 or automotive use | Select when board space is constrained and power dissipation remains below 300 mW |
| MMSZ5243BS-7-F | 0.5 W rating, SOD-123 package, 15 Ω Zzt at 20 mA - different test current, no AEC-Q101 qualification | Limited to industrial/commercial environments; lacks surge-rated clip design and thermal performance | Choose for cost-sensitive non-automotive designs where 500 mW suffices and thermal margin is adequate |
Compared with BZX84-C13-7-F and MMSZ5243BS-7-F, DFLZ13Q-7 delivers 2× higher power rating, 40% lower zener impedance, AEC-Q101 qualification, and superior thermal resistance - making it the only viable option for automotive power regulation and high-reliability industrial clamping.
Availability
DFLZ13Q-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC power supplies, medical infusion pump power management, and telecom base station bias reference requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for DFLZ13Q-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' automotive-qualified Zener diode product line, engineered specifically for high-reliability voltage regulation and transient protection in harsh-environment applications such as powertrain, chassis, and body electronics.
FAQ
What is the maximum steady-state power dissipation for DFLZ13Q-7 on a standard FR-4 PCB?
DFLZ13Q-7 is rated for 1.0 W continuous power dissipation when mounted on a 1.5" × 1.5", 2 oz. copper FR-4 PCB with a 1" × 1" thermal pad layout. Derating begins above +25°C ambient, reaching zero power at +150°C per the published derating curve.
Does DFLZ13Q-7 have a defined forward voltage specification?
Yes - forward voltage is specified as VF = 1.2 V maximum at IF = 200 mA. This parameter is relevant for reverse-polarity protection configurations or dual-use as a rectifier in low-duty-cycle applications, though its primary function remains Zener regulation.
How is the cathode identified on the PowerDI123 package?
The cathode is marked by a visible band on the top surface of the PowerDI123 package, aligned with the cathode terminal. The large exposed metal pad on the bottom side is also electrically and thermally connected to the cathode, serving as both the electrical connection and primary heat sink interface.
Is DFLZ13Q-7 suitable for use in life support equipment?
No - Diodes Incorporated explicitly prohibits use of DFLZ13Q-7 in life support devices or systems without express written approval from its CEO. The device is not certified for implantable or critical-safety applications where failure could directly endanger human life.
DFLZ13Q-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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 10 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
DFLZ13Q-7 FAQ
1.How can I place an order for DFLZ13Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLZ13Q-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 DFLZ13Q-7 reliable?
The price and inventory of DFLZ13Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLZ13Q-7 is usually 5 days.
3.What payment methods are accepted for DFLZ13Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLZ13Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLZ13Q-7?
DFLZ13Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLZ13Q-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 DFLZ13Q-7?
For technical support, including DFLZ13Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLZ13Q-7 requirements.
6.How does Aetrix verify that DFLZ13Q-7 is sourced from the original manufacturer or authorized distributors?
All DFLZ13Q-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 DFLZ13Q-7 meets industry standards.
7.What is the process for return or replacement of DFLZ13Q-7?
All DFLZ13Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLZ13Q-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 DFLZ13Q-7 part is unused and in its original packaging.
Return procedure for DFLZ13Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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