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Diodes Incorporated DFLZ5V6-7
- Part No.:
- DFLZ5V6-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLZ5V6-7.pdf
- Description:
- DIODE ZENER 5.6V 1W POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:8,757
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Product details
Overview
DFLZ5V6-7 from Diodes Incorporated is a 1.0W surface-mount power Zener diode in PowerDI123 package, rated for 5.6V nominal zener voltage at 100mA test current, with 1Ω typical zener impedance and ±0.04%/°C temperature coefficient. It provides precision voltage regulation in compact automotive and industrial power supply rails.
For engineers reviewing the DFLZ5V6-7 datasheet, DFLZ5V6-7 pinout, DFLZ5V6-7 application, or DFLZ5V6-7 equivalent, this device serves as a high-reliability, RoHS-compliant, halogen-free voltage reference for overvoltage protection, voltage clamping, and low-power biasing circuits requiring stable 5.6V regulation under transient conditions.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode–anode terminals. Its 1.0W power dissipation rating is validated on FR-4 PCB with 2 oz. copper and 1"×1" pad layout, and thermal resistance junction-to-soldering-point is 9°C/W - enabling reliable operation up to +150°C junction temperature.
The device features a cathode band marking, matte tin–annealed copper leadframe, and JEDEC-qualified reliability per AEC-Q standards. With 10µA maximum reverse leakage at VR = 2.5V and 100µA at VR = 5.2V (min VZ), it supports low-quiescent-current regulation without compromising stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6V nominal at IZT = 100mA; min 5.2V / max 6.0V - ensures tight tolerance for 5V rail clamping and reference generation |
| Zener Impedance (ZZT) | 1Ω typical at IZT = 100mA - delivers low dynamic resistance for minimal output voltage variation under load transients |
| Power Dissipation (PD) | 1.0W on FR-4 PCB - supports continuous regulation in space-constrained DC/DC feedback paths and LDO supervision |
| Temp Coefficient (TC) | −0.04%/°C to +0.04%/°C - enables stable reference performance across −55°C to +150°C operating range |
| Reverse Leakage (IR) | 10µA max at VR = 2.5V; 100µA max at VR = 5.2V - guarantees low standby current in always-on monitoring circuits |
| Thermal Resistance (RθJS) | 9°C/W junction-to-soldering-point - allows direct thermal coupling to PCB ground plane for efficient heat extraction |
| Package | PowerDI123 - 3-pin SMD outline (1.78mm × 3.70mm) with exposed cathode tab for enhanced thermal and electrical performance |
Pinout & Package
Package: PowerDI123 - molded green plastic housing (UL 94V-0), 0.01g weight, moisture sensitivity level 1, cathode band marking on top view. Terminals are matte tin–annealed copper; solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry terminal in forward bias; connected to ground or low-side reference node in Zener configuration | Provides low-resistance path for reverse-bias current flow during regulation; requires PCB thermal relief for soldering integrity |
| Cathode (Pin 2) | Current exit terminal in reverse breakdown; connected to regulated voltage node | Exposed metal tab functions as primary thermal conduction path and electrical connection - must be soldered to large copper pour |
| Case / Tab (Pin 3) | Integrated cathode connection - electrically and thermally tied to Pin 2 | Not isolated; serves as both current return and heat sink interface - eliminates need for separate thermal pad vias |
Key Features
| Feature | Design Value |
|---|---|
| 1.0W power rating on standard FR-4 | Enables use in cost-sensitive industrial power supplies without heatsinks or specialized board stack-ups |
| JEDEC-qualified reliability (AEC-Q) | Validated for automotive-grade stress testing - suitable for under-hood ECUs and ADAS sensor modules |
| Halogen- and antimony-free "Green" compound | Meets <900ppm Br, <900ppm Cl, <1000ppm Sb - compliant with IPC-1752A and EU environmental directives |
| Cathode-band polarity marking | Unambiguous orientation identification during automated optical inspection (AOI) and reflow assembly |
| Low RθJS = 9°C/W | Reduces thermal derating impact - maintains full 1.0W capability up to +105°C ambient on standard 2-layer boards |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Clamp CAN transceiver supply rail against load-dump transients up to 35V. IC Role / Device Role / Timing Role: Zener shunt regulator providing overvoltage protection for 5V microcontroller I/O and transceiver bias rails. Use Value: Limits peak voltage to ≤6.0V using 5.6V nominal VZ and 1Ω ZZT - prevents latch-up in 5V-tolerant interfaces without adding series resistance. |
Use Scenario: Protect 4–20mA current-loop receiver inputs from ESD and field-wiring faults. IC Role / Device Role / Timing Role: Precision voltage clamp placed across input op-amp rails to absorb ±2kV HBM ESD events. Use Value: 10µA IR at 2.5V ensures negligible loading on high-impedance current-sense amplifiers while clamping fast transients within 10ns. |
| Medical Patient Monitor Power Supervision | Consumer Smart Meter Reference Stabilization |
Use Scenario: Stabilize 5V reference for ADCs measuring vital-sign analog signals (ECG, SpO₂). IC Role / Device Role / Timing Role: Low-drift voltage reference source for SAR ADC biasing and internal LDO feedback. Use Value: ±0.04%/°C TC and 1Ω impedance ensure <±1.5mV drift over 0–70°C - meets IEC 60601-1 accuracy requirements. |
Use Scenario: Regulate auxiliary 5.6V rail powering metrology IC real-time clock and EEPROM. IC Role / Device Role / Timing Role: Standby-mode voltage reference maintaining RTC accuracy during main power brownouts. Use Value: 100µA IR at 5.2V allows >10-year battery backup life when paired with 100mAh coin cell - verified per IEC 62053-21. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 | 0.3W SOT-23 package; 5.6V ±5%; ZZT = 40Ω typical; RθJA = 300°C/W | Limited to low-power signal-level clamping; unsuitable for >50mA continuous regulation | Select for space-constrained logic-level protection where thermal budget is not critical |
| MMSZ5232BS | 0.5W SOD-123; 5.6V ±5%; ZZT = 10Ω typical; RθJA = 200°C/W; AEC-Q200 qualified | Higher thermal resistance limits sustained power handling; lacks 1.0W FR-4 rating | Prefer for cost-sensitive consumer designs needing automotive qualification but lower power density |
Compared with BZX84-C5V6 and MMSZ5232BS, DFLZ5V6-7 delivers 2× higher power density, 10× lower zener impedance, and 30× better thermal resistance - making it uniquely suited for industrial and automotive power-rail stabilization where long-term reliability under thermal stress is mandatory.
Availability
DFLZ5V6-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog input stages, medical patient monitor power supervision, and smart meter reference stabilization requiring stable component supply and full lifecycle traceability.
Supply support for DFLZ5V6-7 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 in automotive, industrial, and medical systems where thermal robustness, environmental compliance, and JEDEC-qualified longevity are required.
FAQ
What is the maximum continuous reverse current the DFLZ5V6-7 can handle at 25°C ambient?
At TA = +25°C, the DFLZ5V6-7 can sustain 178.6mA continuous reverse current (calculated as PD / VZ = 1.0W / 5.6V), assuming ideal heat sinking. Derating begins above 25°C per Figure 1's 110°C/W RθJA curve - at 70°C ambient, max continuous current drops to ~115mA.
Does the PowerDI123 package require thermal vias under the cathode tab?
No thermal vias are required for basic operation, as the 9°C/W RθJS is measured to the solder joint itself. However, for sustained 1.0W dissipation above 60°C ambient, at least four 0.3mm-diameter thermal vias spaced evenly under the 2.8mm × 1.78mm tab are recommended to reduce effective RθJA below 60°C/W.
Is DFLZ5V6-7 suitable for use in a 5V USB-powered circuit as an overvoltage protector?
Yes - when placed between VBUS and ground with a series current-limiting resistor (e.g., 10Ω), it clamps transients above 6.0V while drawing <100mA during fault. Its 10µA IR at 2.5V ensures no measurable loading on healthy 5V lines, and the 1.0W rating absorbs short-duration surges without failure.
How does the −0.04%/°C temperature coefficient affect regulation accuracy over temperature?
Over a −40°C to +85°C range (125°C ΔT), the worst-case VZ shift is ±5.0mV (5.6V × |−0.04| × 125), resulting in total span of 5.595V to 5.605V. This ±0.09% variation meets Class 1 accuracy for industrial voltage references and exceeds requirements for most non-precision analog sensing applications.
DFLZ5V6-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±7%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 2 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
DFLZ5V6-7 FAQ
1.How can I place an order for DFLZ5V6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLZ5V6-7 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 DFLZ5V6-7 reliable?
The price and inventory of DFLZ5V6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLZ5V6-7 is usually 5 days.
3.What payment methods are accepted for DFLZ5V6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLZ5V6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLZ5V6-7?
DFLZ5V6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLZ5V6-7 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 DFLZ5V6-7?
For technical support, including DFLZ5V6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLZ5V6-7 requirements.
6.How does Aetrix verify that DFLZ5V6-7 is sourced from the original manufacturer or authorized distributors?
All DFLZ5V6-7 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 DFLZ5V6-7 meets industry standards.
7.What is the process for return or replacement of DFLZ5V6-7?
All DFLZ5V6-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLZ5V6-7, 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 DFLZ5V6-7 part is unused and in its original packaging.
Return procedure for DFLZ5V6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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