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Diodes Incorporated DDZ5V6B-7
- Part No.:
- DDZ5V6B-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ5V6B-7.pdf
- Description:
- DIODE ZENER 5.6V 470MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:83,210
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Product details
Overview
DDZ5V6B-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 5.6 V (min 5.45 V, max 5.73 V), 20 mA test current, 11 Ω zener impedance at 1 kHz, and 0.5 µA reverse leakage at 2.5 V. It operates in SOD123 package and serves as a stable voltage reference in low-power analog circuits, power supply feedback loops, and overvoltage protection clamping.
For engineers reviewing the DDZ5V6B-7 datasheet, DDZ5V6B-7 pinout, DDZ5V6B-7 application, or DDZ5V6B-7 equivalent, key selection criteria include tight VZ tolerance (±2.3%), low dynamic impedance, thermal stability across -65°C to +150°C, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This Zener diode uses silicon planar construction with controlled doping to achieve precise breakdown characteristics. Its 5.6 V nominal voltage places it in the low-noise, low-temperature-coefficient region of the Zener curve (TC ≈ +0.02%/°C), minimizing drift in reference applications.
The device is rated for 470 mW power dissipation at 25°C ambient on standard FR-4 board layout and exhibits 266°C/W junction-to-ambient thermal resistance under defined copper pad conditions - critical for thermal design in compact power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.45–5.73 V @ IZT = 20 mA - ensures ±2.3% regulation accuracy for precision references |
| Zener Impedance (ZZT) | 11 Ω @ f = 1 kHz - maintains low output impedance under dynamic load changes |
| Reverse Leakage (IR) | 0.5 µA @ VR = 2.5 V - minimizes error current in high-impedance bias networks |
| Power Dissipation (PD) | 470 mW @ TA = +25°C - supports continuous operation in space-constrained PCB layouts |
| Thermal Resistance (RθJA) | 266 °C/W - defines temperature rise per watt on standard 1-in² copper pad |
| Operating Temperature | -65°C to +150°C - enables use in automotive under-hood and industrial control environments |
| Package | SOD123 - 2-pin surface-mount outline compatible with IPC-7351B footprint standards |
Pinout & Package
Package: SOD123 - molded plastic case with cathode band marking; dimensions: 1.55 mm × 2.65 mm × 1.05 mm (L × W × H); weight ≈ 0.01 g; RoHS-compliant matte tin finish on Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; forms reference return path |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 5.6 V reference when reverse-biased; marked by band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Tight VZ tolerance | ±2.3% (5.45–5.73 V) - reduces calibration overhead in factory-trimmed analog systems |
| Low dynamic impedance | 11 Ω at 20 mA - suppresses ripple and noise in feedback paths of DC-DC converters |
| Automated assembly compatibility | SOD123 footprint with J-STD-020 Level 1 moisture sensitivity - eliminates bake requirements pre-reflow |
| Green material compliance | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) - meets automotive ELV and RoHS 3 mandates |
| High-reliability qualification | AEC-Q101 qualified variant available (DDZ5V6BQ-7) - supports automotive powertrain and body electronics |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck-boost converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Provides stable 5.6 V reference for TL431-like comparator input or shunt regulator node. Use Value: Tight VZ tolerance and low ZZT ensure ±1% output regulation without trimming resistors. |
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient overvoltage events (e.g., ESD, inductive kick). IC Role / Device Role / Timing Role: Acts as bidirectional clamp: forward conducts at ~0.9 V, reverse breaks down at 5.6 V. Use Value: Low leakage (0.5 µA) avoids loading sensitive sensor nodes; fast response limits voltage overshoot to <6.0 V. |
| Temperature-Stable Voltage Reference | Low-Power Sensor Biasing |
|
Use Scenario: Generating fixed bias for op-amp input stages or RTD bridge excitation in industrial temperature transmitters. IC Role / Device Role / Timing Role: Supplies precision reference voltage to analog front-end circuitry operating across -40°C to +125°C. Use Value: Near-zero TC (~+0.02%/°C) minimizes drift-induced offset errors in 16-bit measurement systems. |
Use Scenario: Providing regulated excitation current to MEMS pressure sensors or thermistors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Functions as constant-current source when combined with series resistor (e.g., 10 kΩ for ~560 µA). Use Value: 470 mW rating allows sustained operation at 20 mA while maintaining <100 mW dissipation in typical bias configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 | ±5% VZ tolerance (5.32–5.88 V); higher ZZT = 40 Ω; SOT-23 package | Lower cost but reduced accuracy; less suitable for closed-loop regulation requiring tight setpoint control | Select when budget constraints outweigh precision needs and board space permits SOT-23 footprint |
| MMSZ5232BS | ±5% VZ; ZZT = 17 Ω; 500 mW rating; SOD-123 same package | Higher power rating but looser tolerance; no AEC-Q101 automotive variant available | Prefer for non-automotive designs needing marginally higher dissipation without changing layout |
Compared with BZX84-C5V6 and MMSZ5232BS, DDZ5V6B-7 delivers superior voltage accuracy and lower dynamic impedance in identical SOD123 packaging - making it optimal for high-fidelity feedback and reference applications where regulation stability is critical.
Availability
DDZ5V6B-7 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and precision voltage reference applications requiring stable component supply across industrial automation, automotive subsystems, and medical instrumentation programs.
Supply support for DDZ5V6B-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 DDZ series targets high-accuracy, low-drift Zener references for automotive, industrial, and communications systems - emphasizing tight tolerance, low impedance, and robust qualification for mission-critical environments.
FAQ
What is the maximum reverse voltage before breakdown for DDZ5V6B-7?
The DDZ5V6B-7 has a nominal zener voltage of 5.6 V, with guaranteed breakdown occurring between 5.45 V and 5.73 V at 20 mA test current. Below 2.5 V reverse bias, leakage remains ≤0.5 µA - confirming no significant conduction occurs prior to the specified zener knee.
Can DDZ5V6B-7 be used in place of a 5.1 V Zener diode?
No - DDZ5V6B-7 is specifically characterized for 5.6 V operation and is not interchangeable with 5.1 V devices like DDZ5V1B. Substituting alters feedback setpoints, reference levels, and protection thresholds, potentially causing regulation failure or insufficient clamping margin.
Does DDZ5V6B-7 require derating above 25°C ambient?
Yes - its power dissipation must be linearly derated above 25°C at 3.77 mW/°C (based on RθJA = 266°C/W). At 75°C ambient, maximum allowable power drops to 300 mW, and at 125°C, it falls to 113 mW to maintain safe junction temperature.
Is there an automotive-grade version of DDZ5V6B-7?
Yes - the DDZ5V6BQ-7 is the AEC-Q101 qualified variant, manufactured in IATF16949-certified facilities, PPAP-capable, and designed for automotive applications including body control modules, infotainment power rails, and ADAS sensor interfaces.
DDZ5V6B-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±3%
- Power - Max:
- 470 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 2.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
DDZ5V6B-7 FAQ
1.How can I place an order for DDZ5V6B-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ5V6B-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 DDZ5V6B-7 reliable?
The price and inventory of DDZ5V6B-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ5V6B-7 is usually 5 days.
3.What payment methods are accepted for DDZ5V6B-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ5V6B-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ5V6B-7?
DDZ5V6B-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ5V6B-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 DDZ5V6B-7?
For technical support, including DDZ5V6B-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ5V6B-7 requirements.
6.How does Aetrix verify that DDZ5V6B-7 is sourced from the original manufacturer or authorized distributors?
All DDZ5V6B-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 DDZ5V6B-7 meets industry standards.
7.What is the process for return or replacement of DDZ5V6B-7?
All DDZ5V6B-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ5V6B-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 DDZ5V6B-7 part is unused and in its original packaging.
Return procedure for DDZ5V6B-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ5V6B-7 Tags
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