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Diodes Incorporated DDZ9697T-7
- Part No.:
- DDZ9697T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9697T-7.pdf
- Description:
- DIODE ZENER 10V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,614
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Product details
Overview
DDZ9697T-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 10 V (9.50–10.50 V range), 150 mW power dissipation, and ultra-low reverse leakage current of 0.1 µA at 7.6 V. Packaged in SOD523, it delivers sharp breakdown characteristics and is used for precision voltage reference and overvoltage protection in space-constrained DC-DC feedback loops and sensor biasing circuits.
For engineers reviewing the DDZ9697T-7 datasheet, DDZ9697T-7 pinout, DDZ9697T-7 application, or DDZ9697T-7 equivalent, key selection criteria include zener voltage tolerance (±5%), thermal resistance (833 °C/W), cathode-band polarity marking, low leakage performance at VR = 7.6 V, and compatibility with automated SMT assembly on FR-4 boards.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its 10 V nominal rating targets mid-range voltage regulation where temperature coefficient is minimized - Fig. 16 shows TCZ ≈ +0.02 %/°C near 10 V, enabling stable performance across –65°C to +150°C.
The device uses an alloy-42 leadframe with matte tin annealed finish, rated for solderability per MIL-STD-202 Method 208. Its SOD523 package (0.85 mm × 1.25 mm × 0.65 mm) supports high-density layouts while maintaining 833 °C/W junction-to-ambient thermal resistance on standard FR-4 PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 10 V - precise mid-range reference for feedback networks and analog sensing |
| Zener Voltage Range | 9.50–10.50 V - ±5% tolerance ensures predictable clamping in 3.3 V/5 V/12 V systems |
| Power Dissipation | 150 mW - limits maximum continuous zener current to ~15 mA at 10 V |
| Reverse Leakage Current | 0.1 µA @ 7.6 V - enables low-power biasing without loading sensitive nodes |
| Thermal Resistance | 833 °C/W - requires careful layout for >50 mW operation in ambient >70°C |
| Operating Temperature | –65°C to +150°C - suitable for automotive under-hood and industrial control environments |
| Package | SOD523 - 0.85 mm × 1.25 mm footprint fits 0402-class board real estate |
Pinout & Package
DDZ9697T-7 is housed in a two-terminal SOD523 plastic package with cathode identified by a band on the top surface. The device has no internal leads beyond the anode and cathode terminals formed by the alloy-42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail in shunt regulator configurations |
| Cathode | Reverse breakdown terminal / Zener output node | Marked with band; connects to regulated voltage node or feedback point in switching regulators |
Key Features
| Feature | Design Value |
|---|---|
| Sharp Zener Breakdown | Enables clean voltage clamping with minimal knee voltage spread (<0.2 V variation over 1–10 mA IZ) |
| Low Leakage Current | 0.1 µA max at 7.6 V allows use in microamp-level bias networks without error injection |
| SOD523 Package | 0.002 g weight and 0.85 mm × 1.25 mm footprint support ultra-compact portable and wearable designs |
| Lead-Free & Halogen-Free | Meets RoHS 2 and JEDEC J-STD-020D Level 1 moisture sensitivity for reliable reflow processing |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Feedback |
|---|---|
Use Scenario: Stabilizing reference voltage for 16-bit ADC front-end in temperature/humidity transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference providing 10 V基准 to op-amp gain stage and ADC reference input. Use Value: ±5% zener tolerance and <0.1 µA leakage prevent offset drift and maintain ENOB >14 bits over –40°C to +85°C. | Use Scenario: Setting precise 10 V threshold in USB-C PD sink controller overvoltage protection circuit. IC Role / Device Role / Timing Role: Clamping element in comparator-based fault detection path upstream of the PD controller. Use Value: Sharp 10 V breakdown ensures fast response to 12 V bus transients while minimizing false triggers during normal 9–10 V negotiation. |
| Automotive Cabin Control MCU Reset Circuit | Medical Wearable Battery Monitor Reference |
Use Scenario: Generating clean reset threshold for 3.3 V microcontroller in HVAC control module exposed to load-dump pulses. IC Role / Device Role / Timing Role: Zener clamp in RC-based reset generator, referenced to vehicle battery rail. Use Value: 150 mW rating and –65°C to +150°C range allow direct connection to 12 V system without series resistor derating. | Use Scenario: Providing stable 10 V reference for lithium-ion cell voltage measurement in ECG patch with coin-cell power budget. IC Role / Device Role / Timing Role: Low-leakage shunt reference feeding differential amplifier input stage. Use Value: 0.1 µA leakage extends 5-year battery life by reducing quiescent current in always-on monitoring path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C10L-7-F | Same 10 V nominal, but SOD-323 package (larger footprint, 170 mW rating) | Higher power margin allows higher IZ in high-current references; less suitable for 0402-limited layouts | Select when thermal headroom >150 mW is required and board area permits 1.7 mm × 1.3 mm footprint |
| MMSZ5240B-TP | 10 V nominal, SOD-123 package (3.5 mm × 1.8 mm), 500 mW rating, ±5% tolerance | Designed for higher-power industrial supplies; incompatible with fine-pitch automated placement | Choose only for through-hole or hand-soldered prototypes where thermal robustness outweighs size constraints |
Compared with BZX584C10L-7-F and MMSZ5240B-TP, DDZ9697T-7 uniquely balances ultra-small SOD523 size, 0.1 µA leakage, and automotive-grade temperature range - making it optimal for miniaturized, low-power, high-reliability voltage referencing where board space is constrained below 1 mm².
Availability
DDZ9697T-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery feedback, and automotive cabin control MCU reset circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DDZ9697T-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 and manufacturing operations across Asia and the Americas.
The DDZ96xxT series belongs to Diodes' precision Zener diode product line, engineered specifically for compact, low-leakage voltage reference and overvoltage protection in high-density consumer, computing, and automotive electronics.
FAQ
What is the maximum zener test current (IZT) for DDZ9697T-7?
The datasheet specifies IZT = 50 µA for DDZ9697T-7. This is the standardized test current used to measure nominal zener voltage (10 V) under thermal equilibrium at 30°C. Operation above this current is permitted up to 15 mA (limited by 150 mW power dissipation), but voltage regulation accuracy degrades outside the 1–10 mA typical operating range shown in Fig. 3.
Does DDZ9697T-7 have a specified zener impedance (ZZT)?
Yes - Fig. 11 shows typical zener impedance for the 7–12 V group (including DDZ9697T-7) ranging from ~150 Ω at 1 mA to ~30 Ω at 10 mA. At IZ = 50 µA (IZT), ZZT is approximately 450 Ω. This value directly impacts regulation stability under dynamic load changes in feedback applications.
Can DDZ9697T-7 be used in place of a 1N4740A?
No - the 1N4740A is a 10 V, 1 W through-hole Zener in DO-41 package. DDZ9697T-7 is a 10 V, 150 mW surface-mount device with different thermal behavior, leakage (0.1 µA vs. 5 µA), and package geometry. Substitution requires redesign of PCB layout, power derating, and validation of transient response due to higher impedance and lower power handling.
Is the cathode band orientation consistent across all DDZ96xxT-7 devices?
Yes - all devices in the DDZ9689T–DDZ9717T family use identical SOD523 packaging with cathode identified by a single black band at one end of the rectangular body. Top-view marking "HQ" (for DDZ9697T) appears adjacent to the cathode band, confirming polarity alignment per Diodes' package outline drawing SOD523.
DDZ9697T-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 150 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-523
DDZ9697T-7 FAQ
1.How can I place an order for DDZ9697T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9697T-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 DDZ9697T-7 reliable?
The price and inventory of DDZ9697T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9697T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9697T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9697T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9697T-7?
DDZ9697T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9697T-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 DDZ9697T-7?
For technical support, including DDZ9697T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9697T-7 requirements.
6.How does Aetrix verify that DDZ9697T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9697T-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 DDZ9697T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9697T-7?
All DDZ9697T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9697T-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 DDZ9697T-7 part is unused and in its original packaging.
Return procedure for DDZ9697T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9697T-7 Tags
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