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Diodes Incorporated DDZ9692-7
- Part No.:
- DDZ9692-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9692-7.pdf
- Description:
- DIODE ZENER 6.8V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:31,086
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Product details
Overview
DDZ9692-7 from Diodes Incorporated is a surface-mount low-current Zener diode with a nominal zener voltage of 6.8 V (min 6.46 V, max 7.14 V), rated for 500 mW power dissipation on FR-4 PCB at TL = +75°C, and specified at low test current (50 µA) - ideal for precision voltage reference and low-bias battery-powered circuits in portable instrumentation and sensor signal conditioning.
For engineers reviewing the DDZ9692-7 datasheet, DDZ9692-7 pinout, DDZ9692-7 application, or DDZ9692-7 equivalent, this part serves as a stable, low-leakage (0.1 µA @ VR = 5.1 V) voltage clamp in power supply feedback paths, analog front-end protection, and microcontroller reset supervision where thermal stability and SOD123 footprint compatibility are critical.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across its cathode–anode terminals. Its 6.8 V nominal zener voltage exhibits a temperature coefficient of approximately +0.03 %/°C (per Fig. 17), enabling predictable drift behavior over –65°C to +150°C operating range.
Designed for low-current biasing, it delivers tight voltage tolerance (±5%) at IZT = 50 µA and maintains low dynamic impedance (~150 Ω at IZ = 1 mA per Fig. 11), supporting accurate regulation in high-impedance sensing nodes and low-power supervisory circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.8 V (6.46–7.14 V range); provides stable reference for 5 V–6 V system rails with ±5% tolerance at 50 µA test current. |
| Power Dissipation | 500 mW on FR-4 PCB at TL = +75°C; supports continuous operation in compact layouts without forced cooling. |
| Reverse Leakage Current | 0.1 µA @ VR = 5.1 V; ensures minimal quiescent current draw in battery-critical applications. |
| Zener Test Current | 50 µA; enables reliable regulation in ultra-low-power bias networks and micropower comparators. |
| Thermal Resistance (Junction-to-Lead) | 150 °C/W; allows effective heat transfer to PCB copper, supporting thermal reliability in dense layouts. |
| Operating Temperature Range | –65°C to +150°C; suitable for industrial and automotive under-hood environments with wide ambient swings. |
Pinout & Package
Package: SOD123 - surface-mount plastic case (UL 94V-0), 0.01 g weight, cathode indicated by band marking. Dimensions: L = 0.25–0.40 mm, D = 1.40–1.70 mm, E = 2.55–2.85 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse breakdown reference node | Connected to lower-potential side of circuit; forms reference ground return path in shunt regulator topology. |
| Cathode | Reverse breakdown voltage output / Zener voltage source | Marked with band; supplies regulated 6.8 V to load when reverse biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | 50 µA zener test current enables use in sub-100 µA bias networks without compromising regulation accuracy. |
| Automated assembly compatibility | SOD123 package meets IPC-7351B standards and supports high-yield pick-and-place with standard reflow profiles. |
| Halogen- and antimony-free "Green" construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb; complies with environmental mandates for consumer and industrial end equipment. |
| Lead-free & RoHS 3 compliant | Fully EU Directive 2015/863/EU compliant; matte tin annealed finish ensures solderability per MIL-STD-202, Method 208. |
Applications
| Portable Sensor Reference | Microcontroller Reset Supervision |
|---|---|
Use Scenario: Precision analog sensor (e.g., thermistor bridge or RTD interface) requires stable 6.8 V reference for ADC excitation in battery-powered IoT node. IC Role / Device Role / Timing Role: Shunt voltage reference providing low-drift excitation voltage independent of supply variation. Use Value: 0.1 µA leakage and ±5% voltage tolerance ensure >12-bit effective resolution and multi-year battery life. |
Use Scenario: Microcontroller-based smart meter needs reliable reset assertion during brown-out conditions below 4.5 V supply. IC Role / Device Role / Timing Role: Zener-clamped voltage divider feeding RC network to reset IC input. Use Value: Tight 6.46–7.14 V range and low TC enable consistent reset threshold across –40°C to +85°C operating range. |
| Low-Power Power Supply Feedback | ESD-Sensitive Analog Input Protection |
Use Scenario: Isolated flyback converter uses optocoupler feedback with secondary-side shunt regulator for tight output regulation. IC Role / Device Role / Timing Role: Zener reference in TL431-like discrete shunt regulator configuration. Use Value: 500 mW rating and 150 °C/W RθJL allow direct PCB copper heatsinking without thermal vias in space-constrained designs. |
Use Scenario: High-impedance op-amp input stage in medical-grade biosignal amplifier requires robust overvoltage clamping. IC Role / Device Role / Timing Role: Low-capacitance (<2 pF at 1 V, per Fig. 10) shunt clamp protecting input against ESD transients. Use Value: Sub-1 µA leakage preserves DC accuracy while clamping fast transients up to ±8 kV (IEC 61000-4-2 Level 4). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V8 (ON Semiconductor) | Same SOD-123 package, 6.8 V nominal, but rated at 300 mW and higher IR (0.5 µA @ VR = 5.1 V). | Higher leakage limits use in nanoampere-bias circuits; lower power rating restricts use in sustained 500 mW thermal environments. | Select when cost sensitivity outweighs leakage and thermal performance requirements. |
| MMSZ4687 (Vishay) | 6.8 V nominal, 500 mW rating, but specified at IZT = 5 mA (not 50 µA); higher dynamic impedance (~200 Ω at 1 mA). | Less suitable for low-current references; better suited for higher-current clamp or transient suppression roles. | Prefer only if design already uses 5 mA bias and requires legacy second-source availability. |
Compared with BZX84-C6V8 and MMSZ4687, DDZ9692-7 uniquely balances ultra-low leakage (0.1 µA), low-current regulation (50 µA IZT), and full 500 mW thermal capability - making it optimal for precision, low-power, and thermally constrained Zener reference implementations.
Availability
DDZ9692-7 is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and industrial microcontroller reset circuits requiring stable component supply with guaranteed long-term continuity.
Supply support for DDZ9692-7 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, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.
The DDZ96xx series belongs to Diodes' precision low-current Zener portfolio, engineered specifically for voltage reference and biasing in ultra-low-power, space-constrained, and thermally demanding applications.
FAQ
What is the maximum reverse voltage (VR) at which DDZ9692-7 guarantees ≤0.1 µA leakage?
DDZ9692-7 guarantees ≤0.1 µA reverse leakage current at VR = 5.1 V, as specified in the Electrical Characteristics table. This value is measured at TA = +25°C and defines the upper limit of applied reverse voltage before significant conduction begins - critical for setting safe operating margins in reference and clamp circuits.
Can DDZ9692-7 be used in place of a 5.1 V Zener diode in a reset circuit?
No - DDZ9692-7 has a nominal zener voltage of 6.8 V (6.46–7.14 V range), not 5.1 V. Using it in a 5.1 V reset circuit would cause incorrect threshold detection and potential system malfunction. For 5.1 V applications, DDZ9690-7 (5.6 V) or DDZ9689-7 (5.1 V) from the same series are appropriate alternatives.
Is DDZ9692-7 qualified for automotive applications?
No - DDZ9692-7 is the standard industrial version. The automotive-qualified variant is DDZ9692Q-7, which carries AEC-Q101 qualification, PPAP capability, and is manufactured in IATF 16949 certified facilities. Only the "Q" suffix denotes automotive compliance.
What is the typical zener impedance (ZZT) of DDZ9692-7 at 1 mA test current?
Per Figure 11 in the datasheet, DDZ9692-7 exhibits typical zener impedance of ~150 Ω at IZ = 1 mA and TJ = +25°C. This value reflects dynamic resistance in breakdown and directly impacts regulation accuracy under varying load or line conditions.
DDZ9692-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
DDZ9692-7 FAQ
1.How can I place an order for DDZ9692-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9692-7 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 DDZ9692-7 reliable?
The price and inventory of DDZ9692-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9692-7 is usually 5 days.
3.What payment methods are accepted for DDZ9692-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9692-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9692-7?
DDZ9692-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9692-7 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 DDZ9692-7?
For technical support, including DDZ9692-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9692-7 requirements.
6.How does Aetrix verify that DDZ9692-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9692-7 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 DDZ9692-7 meets industry standards.
7.What is the process for return or replacement of DDZ9692-7?
All DDZ9692-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9692-7, 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 DDZ9692-7 part is unused and in its original packaging.
Return procedure for DDZ9692-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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