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Diodes Incorporated DDZ9697-7
- Part No.:
- DDZ9697-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9697-7.pdf
- Description:
- DIODE ZENER 10V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,239
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Product details
Overview
DDZ9697-7 from Diodes Incorporated is a surface-mount low-current Zener diode with nominal zener voltage 10.0 V (min 9.50 V, max 10.50 V), 500 mW power dissipation on FR-4 PCB at TL = +75°C, and 50 µA test current - optimized for low-bias, battery-powered voltage reference and regulation in portable electronics.
For engineers reviewing the DDZ9697-7 datasheet, DDZ9697-7 pinout, DDZ9697-7 application, or DDZ9697-7 equivalent, this device serves as a precision, low-leakage (0.1 µA @ 7.6 V) voltage clamp in power supply monitoring, overvoltage protection, and analog signal conditioning circuits where SOD123 footprint and thermal stability are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage tolerance (±5% at 10 V) and low dynamic impedance (typ. 180 Ω at IZ = 5 mA), enabling stable reference performance under light-load conditions. Its specified test current of 50 µA supports ultra-low-power biasing in energy-constrained systems.
Thermal resistance is characterized as RθJA = 340 °C/W (FR-4, 1-inch² pad) and RθJL = 150 °C/W, confirming suitability for compact PCB layouts with limited copper area. Temperature coefficient is +0.07 %/°C near 10 V, minimizing drift across -65°C to +150°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.0 V nominal (9.50–10.50 V range); enables precise 10 V reference or clamping without external trimming. |
| Test Current (IZT) | 50 µA; allows direct biasing from high-impedance sources (e.g., microcontroller GPIO, sensor outputs). |
| Max Reverse Leakage (IR) | 0.1 µA @ 7.6 V; ensures minimal quiescent current draw in always-on monitoring circuits. |
| Power Dissipation (PD) | 500 mW at TL = +75°C on FR-4; supports robust operation in thermally constrained consumer and industrial PCBs. |
| Package | SOD123; industry-standard 2-pin surface-mount outline (1.55 mm × 2.65 mm × 1.05 mm) compatible with automated pick-and-place. |
| Operating Temp | -65°C to +150°C; qualified for extended-temperature applications including automotive under-hood and industrial control. |
Pinout & Package
Package: SOD123 - molded plastic case (UL 94V-0), cathode band marking, matte tin annealed terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; defines polarity for reverse-biased operation. |
| Cathode | Zener breakdown terminal / voltage reference output | Marked with band; connects to regulated node or feedback path; carries full zener current during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - eliminates need for current-boosting resistors in micropower designs. |
| Tight voltage tolerance | ±5% at 10 V - reduces calibration overhead in factory-set reference circuits. |
| Automated assembly compatibility | SOD123 footprint with J-STD-020 Level 1 moisture sensitivity - zero bake requirement before reflow. |
| Green compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); meets RoHS 3 and automotive AEC-Q101 requirements. |
Applications
| Battery Voltage Monitor | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage (3.0–4.2 V per cell) or multi-cell pack voltage in wearables and IoT sensors. IC Role / Device Role / Timing Role: Zener diode provides stable threshold reference for comparator input or ADC measurement scaling. Use Value: 0.1 µA leakage at 7.6 V ensures negligible impact on battery shelf life over multi-year deployments. |
Use Scenario: Generating clean, temperature-stable reset signal for ARM Cortex-M0+ MCUs in edge nodes. IC Role / Device Role / Timing Role: Clamps reset line to 10 V reference during brown-out detection; interfaces directly with internal reset supervisor. Use Value: ±5% VZ tolerance and +0.07 %/°C TC enable deterministic reset thresholds across -40°C to +85°C ambient. |
| USB-C Port Protection | Industrial Sensor Signal Conditioning |
|
Use Scenario: Overvoltage clamping on USB-C VBUS line (5 V nominal) against ESD transients and adapter faults. IC Role / Device Role / Timing Role: Fast-acting shunt element that diverts surge current above 10 V while limiting downstream voltage excursion. Use Value: 500 mW rating sustains 100 ns/1 kV ESD pulses without degradation; SOD123 footprint fits tight board space near connector. |
Use Scenario: Biasing and level-shifting analog outputs from MEMS pressure sensors in HVAC controllers. IC Role / Device Role / Timing Role: Provides stable 10 V excitation reference for ratiometric bridge measurements and offset compensation. Use Value: Low dynamic impedance (180 Ω) maintains reference accuracy despite varying sensor load currents up to 1 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10LT1G | Same 10 V nominal, but 350 mW PD, higher IR (0.2 µA @ 7.6 V), SOT-23 package (larger footprint, higher RθJA). | Less suitable for ultra-low-power or space-constrained designs; requires larger PCB area and dissipates more heat at same current. | Select when legacy SOT-23 tooling exists and 150 mW lower power margin is acceptable. |
| MMSZ4689T1G | 10 V nominal, 500 mW rating, but wider VZ tolerance (±5% min/max not guaranteed), higher typical ZZT (300 Ω). | Higher unit-to-unit variation impacts precision reference accuracy; less predictable clamping behavior in safety-critical sensing. | Prefer only for non-critical voltage limiting where cost is primary driver and calibration is performed post-assembly. |
Compared with BZX84-C10LT1G and MMSZ4689T1G, DDZ9697-7 delivers tighter VZ distribution, lower leakage, and superior thermal performance in the smaller SOD123 package - making it optimal for battery longevity, miniaturized layouts, and production-calibrated analog subsystems.
Availability
DDZ9697-7 is available at Aetrix Electronics and suitable for battery management systems, microcontroller reset circuits, USB-C port protection, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle continuity.
Supply support for DDZ9697-7 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, low-power, and automotive-qualified components with ISO/TS 16949 and IATF 16949 certified facilities.
DDZ9697-7 belongs to the DDZ9678–DDZ9717 series - a family of low-current Zener diodes engineered specifically for portable, battery-powered, and space-constrained applications demanding precision voltage reference with minimal quiescent consumption.
FAQ
What is the maximum continuous reverse voltage (VRWM) for DDZ9697-7?
The DDZ9697-7 has no defined VRWM; it is a Zener diode designed for controlled reverse breakdown. Its rated zener voltage is 10.0 V (9.50–10.50 V), and it begins regulating at ~9.5 V with increasing current. For transient suppression, peak pulse power must stay within safe operating area limits per Figure 1 derating curve.
Is DDZ9697-7 suitable for automotive applications?
Yes - the automotive-grade variant DDZ9697Q-7 is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. The standard DDZ9697-7 is not automotive-qualified but shares identical electrical and thermal specifications; use DDZ9697Q-7 for production automotive systems.
How does the 50 µA test current affect circuit design?
The 50 µA IZT means the diode achieves its specified VZ at just 50 µA - enabling direct biasing from high-impedance sources like op-amp outputs or MCU pins without additional current-setting resistors. This simplifies topology and reduces standby power in always-on monitoring stages.
Can DDZ9697-7 be used in forward conduction mode?
Yes - its forward voltage is 0.9 V at 10 mA (per DS30410 Rev. 17), making it usable as a low-drop rectifier or ESD protection diode in series configuration. However, its primary design intent and characterization are for reverse-biased zener operation; forward characteristics are secondary and not optimized for switching.
DDZ9697-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 100 nA @ 7.6 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
DDZ9697-7 FAQ
1.How can I place an order for DDZ9697-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9697-7 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 DDZ9697-7 reliable?
The price and inventory of DDZ9697-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9697-7 is usually 5 days.
3.What payment methods are accepted for DDZ9697-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9697-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9697-7?
DDZ9697-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9697-7 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 DDZ9697-7?
For technical support, including DDZ9697-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9697-7 requirements.
6.How does Aetrix verify that DDZ9697-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9697-7 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 DDZ9697-7 meets industry standards.
7.What is the process for return or replacement of DDZ9697-7?
All DDZ9697-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9697-7, 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 DDZ9697-7 part is unused and in its original packaging.
Return procedure for DDZ9697-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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