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Diodes Incorporated DFLZ16-13
- Part No.:
- DFLZ16-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLZ16-13.pdf
- Description:
- DIODE ZENER 16V 1W POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:2,572
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Product details
Overview
DFLZ16-13 from Diodes Incorporated is a 16V, 1W surface-mount power Zener diode in PowerDI123 package, rated for 25mA test current with 15Ω maximum zener impedance and ±0.06%/°C temperature coefficient. It provides precise voltage regulation in low-power supply rails and overvoltage protection circuits operating from −55°C to +150°C.
For engineers reviewing the DFLZ16-13 datasheet, DFLZ16-13 pinout, DFLZ16-13 application, or DFLZ16-13 equivalent, this part serves as a high-reliability, automotive-qualified (Q-grade variant available) voltage reference and clamp device requiring stable thermal resistance (9°C/W junction-to-solder point) and low reverse leakage (<1µA at 12V).
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled nominal zener voltage (16V ±3.1%) at IZT = 25mA. Its 1W power dissipation rating is validated on FR-4 PCB with 1"x1" copper pad, and thermal performance relies on direct cathode-tab soldering to minimize RθJS.
The device features a matte tin–annealed copper leadframe, UL 94V-0 molded plastic body, and JEDEC-qualified reliability per AEC-Q standards. Reverse current remains below 1µA at 12V, enabling low-quiescent monitoring in battery-backed systems and precision bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16V nominal, 15.3–17.1V range at 25mA - ensures stable reference within ±3.1% tolerance under standard test conditions |
| Power Dissipation (PD) | 1.0W on FR-4 PCB - supports continuous regulation in compact power management stages without forced cooling |
| Zener Impedance (ZZT) | ≤15Ω max at 25mA - minimizes output voltage variation under dynamic load changes |
| Reverse Leakage (IR) | <1µA at VR = 12V - enables ultra-low standby current in always-on sensing and backup circuits |
| Temp. Coefficient (αVZ) | +0.06%/°C max - allows predictable drift compensation in industrial temperature ranges (−55°C to +150°C) |
| Thermal Resistance (RθJS) | 9°C/W - enables efficient heat transfer from die to PCB solder joint, critical for sustained 1W operation |
| Package | PowerDI123 - surface-mount, single-cathode-band marking, 0.01g weight, RoHS-compliant "Green" compound |
Pinout & Package
Package: PowerDI123 - molded plastic case with exposed cathode tab; dimensions: 1.78mm (D) × 3.70mm (E) × 0.98mm (A); moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or lower-potential node; forms regulated output reference when cathode is biased above anode |
| Cathode | Zener breakdown terminal / voltage clamping node | Marked by band; connected to input rail or protected node; conducts when voltage exceeds 16V, shunting excess current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 1W power rating on standard FR-4 | Validated with 1"x1" 2oz copper pad - eliminates need for thermal vias or heatsinks in space-constrained designs |
| JEDEC-qualified high reliability | Complies with AEC-Q stress testing - suitable for automotive subsystems where field failure risk must be minimized |
| Low zener impedance (≤15Ω) | Reduces output voltage ripple under transient load steps - improves stability in feedback loops and reference buffers |
| Halogen- and antimony-free "Green" construction | <900ppm Br/Cl, <1000ppm Sb - meets global environmental compliance mandates without sacrificing electrical performance |
| Cathode-band polarity marking | Unambiguous visual identification on top surface - prevents assembly errors during automated placement and manual rework |
Applications
| Industrial Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 16V bias to analog front-end op-amps in temperature/pressure transmitters operating across −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Precision voltage reference and current-limiting shunt regulator. Use Value: Maintains <±0.5% reference accuracy over temperature via low αVZ and stable ZZT, reducing calibration drift in field-deployed instruments. |
Use Scenario: Clamping induced surges on USB VBUS line during hot-plug events or ESD discharge in portable docking stations. IC Role / Device Role / Timing Role: Fast-acting overvoltage protection device placed between VBUS and GND. Use Value: Limits peak voltage to ≤17.1V before breakdown, protecting downstream USB controllers rated for 20V absolute max, with sub-100ns response. |
| Automotive Lighting Control | Programmable Logic Supply Clamp |
Use Scenario: Regulating gate drive voltage for high-side MOSFETs in LED headlamp dimming modules subjected to load-dump transients up to 40V. IC Role / Device Role / Timing Role: Zener-clamped voltage limiter for logic-level translation circuitry. Use Value: Absorbs 1W surge energy without degradation, maintaining 16V logic compatibility while surviving ISO 7637-2 Pulse 5a events. |
Use Scenario: Protecting FPGA configuration I/O banks powered from adjustable DC-DC converters in industrial PLCs. IC Role / Device Role / Timing Role: Secondary voltage clamp preventing latch-up during converter overshoot. Use Value: Engages at 16V with <1µA leakage at 12V - avoids false triggering during normal 12–15V rail operation while blocking >17.1V faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16 | 0.3W rating, SOT-23 package, 40Ω ZZT max, higher RθJA (350°C/W) | Limited to low-power signal-level clamping; unsuitable for 1W continuous dissipation | Select only for space-constrained, sub-300mW applications where thermal budget permits higher junction temperature rise |
| MMSZ5245B | 0.5W rating, SOD-123 package, 17Ω ZZT max, 16V ±5% tolerance | Lower power handling and wider voltage tolerance reduce regulation precision in critical bias networks | Prefer for cost-sensitive consumer electronics where ±5% VZ and 0.5W suffice, but avoid in automotive or industrial feedback paths |
Compared with BZX84-C16 and MMSZ5245B, DFLZ16-13 delivers 2.0× and 2.0× higher power capability respectively, tighter 3.1% VZ tolerance, and 39× lower thermal resistance - making it the sole choice for thermally demanding, high-accuracy Zener regulation in automotive and industrial environments.
Availability
DFLZ16-13 is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port overvoltage clamp, and automotive lighting control requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DFLZ16-13 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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with design centers across Asia, Europe, and the U.S., serving industrial, automotive, and consumer markets.
DFLZ16-13 belongs to the PowerDI® Zener diode product line, engineered for high-reliability voltage regulation and transient suppression in harsh-environment applications where thermal robustness and JEDEC qualification are mandatory.
FAQ
What is the maximum continuous power dissipation for DFLZ16-13 on a standard PCB?
DFLZ16-13 delivers 1.0W continuous power dissipation when mounted on a 1.5" × 1.5" FR-4 board with 2 oz. copper and a 1" × 1" thermal pad layout. This rating assumes natural convection and excludes forced airflow or additional heatsinking. Derating begins linearly above +25°C ambient, reaching zero dissipation at +135°C per the published derating curve.
Does DFLZ16-13 have automotive qualification?
DFLZ16-13 itself is not automotive-qualified; however, its Q-grade counterpart DFLZ16Q-13 is fully qualified to AEC-Q200 standards and shares identical electrical specifications. The non-Q version meets JEDEC reliability requirements but lacks the extended stress-test validation required for automotive use.
How is polarity identified on the PowerDI123 package?
Polarity is marked by a distinct cathode band located on the top surface of the PowerDI123 package, adjacent to the cathode terminal. The band aligns with the shorter leadframe side in top-view orientation, and the cathode connects internally to the exposed metal tab on the bottom surface - confirmed in Diodes' package outline DS30464 Rev. 15-2, page 4.
What is the typical forward voltage at 200mA?
The typical forward voltage (VF) of DFLZ16-13 is 1.2V at IF = 200mA, as specified in the Maximum Ratings table. This value reflects the silicon PN junction's conduction behavior and is consistent across the DFLZ5V1–DFLZ39 family, verified under pulsed test conditions to limit self-heating.
DFLZ16-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5.63%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 12 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
DFLZ16-13 FAQ
1.How can I place an order for DFLZ16-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLZ16-13 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 DFLZ16-13 reliable?
The price and inventory of DFLZ16-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLZ16-13 is usually 5 days.
3.What payment methods are accepted for DFLZ16-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLZ16-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLZ16-13?
DFLZ16-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLZ16-13 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 DFLZ16-13?
For technical support, including DFLZ16-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLZ16-13 requirements.
6.How does Aetrix verify that DFLZ16-13 is sourced from the original manufacturer or authorized distributors?
All DFLZ16-13 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 DFLZ16-13 meets industry standards.
7.What is the process for return or replacement of DFLZ16-13?
All DFLZ16-13 units undergo pre-shipment inspection (PSI). If there is an issue with DFLZ16-13, 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 DFLZ16-13 part is unused and in its original packaging.
Return procedure for DFLZ16-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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