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Diodes Incorporated DDZ9699T-7
- Part No.:
- DDZ9699T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9699T-7.pdf
- Description:
- DIODE ZENER 12V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:9,719
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Product details
Overview
DDZ9699T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 12 V (min 11.4 V, max 12.6 V), 150 mW power dissipation, 50 µA test current, and 0.05 µA reverse leakage at 9.1 V. Packaged in SOD523, it delivers sharp breakdown characteristics and low leakage for precision voltage reference and overvoltage protection in space-constrained DC power rails.
For engineers reviewing the DDZ9699T-7 datasheet, DDZ9699T-7 pinout, DDZ9699T-7 application, or DDZ9699T-7 equivalent, key selection criteria include zener voltage tolerance (±5%), temperature coefficient (~0.07 %/°C per Fig. 17), thermal resistance (833 °C/W), and SOD523 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to regulate or clamp voltage at 12 V with tight tolerance and minimal drift. Its sharp knee characteristic ensures stable regulation even under low-current conditions (IZT = 50 µA) and low leakage (<0.05 µA at VR = 9.1 V).
The device uses an alloy-42 leadframe with matte tin annealed finish, rated for solderability per MIL-STD-202 Method 208, and complies with J-STD-020D Level 1 moisture sensitivity - enabling compatibility with standard reflow profiles without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 12 V - precise clamping point for 12 V rail stabilization or overvoltage threshold detection |
| Zener Voltage Range | 11.4 V to 12.6 V - ±5% tolerance ensures predictable regulation across production lots |
| Power Dissipation | 150 mW - limits continuous power handling on FR-4 board with recommended pad layout |
| Reverse Leakage Current | 0.05 µA @ 9.1 V - enables ultra-low standby current in battery-backed or energy-sensitive circuits |
| Zener Test Current | 50 µA - defines operating point for specified voltage and impedance performance |
| Thermal Resistance | 833 °C/W - indicates significant self-heating at full power; derating required above +25°C ambient |
| Package | SOD523 - 1.25 mm × 0.85 mm footprint ideal for compact consumer and portable electronics |
Pinout & Package
Package: SOD523 - ultra-small plastic surface-mount package with cathode band marking; dimensions: D = 0.75–0.85 mm, E = 1.15–1.25 mm, L = 0.10–0.30 mm, weight ≈ 0.002 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node in reverse-bias configuration; forms regulated output reference |
| Cathode | Zener breakdown terminal / voltage sensing input | Marked by band; connected to higher-potential node; determines clamping voltage relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables accurate voltage clamping at low currents (50 µA), reducing dependency on external bias networks |
| Low leakage current | 0.05 µA at 9.1 V minimizes quiescent power loss in always-on monitoring circuits |
| SOD523 package | 0.85 mm width allows placement in <1.0 mm pitch routing zones, supporting miniaturized power management modules |
| Lead-free & halogen-free | Complies with RoHS 2 and "Green" definitions (<900 ppm Br/Cl, <1000 ppm Sb), suitable for eco-sensitive end equipment |
Applications
| USB Power Delivery Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Detecting overvoltage events on 12 V USB PD auxiliary power lines in docking stations. IC Role / Device Role / Timing Role: Zener clamping element providing fast-response overvoltage protection upstream of load switches. Use Value: 12 V nominal breakdown with ±5% tolerance ensures reliable trip point alignment with USB PD spec-defined 12 V ±5% rails. |
Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Precision shunt reference supplying stable bias to op-amp gain stages. Use Value: Low 0.05 µA leakage avoids loading high-impedance sensor bridges and preserves measurement accuracy. |
| Automotive Body Control Module | IoT Edge Node Power Supervision |
|
Use Scenario: Monitoring 12 V battery-derived supply in BCM microcontroller reset circuitry. IC Role / Device Role / Timing Role: Voltage supervisor input conditioning element ensuring clean POR signal generation. Use Value: Sharp breakdown and low thermal resistance (833 °C/W) maintain stable trip voltage across -40°C to +125°C operating range. |
Use Scenario: Providing fail-safe undervoltage lockout (UVLO) for Li-ion powered BLE modules during deep discharge. IC Role / Device Role / Timing Role: Threshold detector in discrete UVLO comparator circuit with hysteresis. Use Value: Tight 11.4–12.6 V range enables accurate 12 V system-level brownout detection without trimming resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C12 | Same 12 V nominal, but SOD323 package (larger footprint); 200 mW rating; ±5% tolerance | Higher power handling supports higher surge currents, but requires 0.2 mm larger board area | Select when higher transient energy absorption is needed and SOD323 layout is available |
| MMSZ5242B | 12 V nominal, SOD123 package; 500 mW rating; ±5% tolerance; higher leakage (1 µA @ 9.1 V) | Greater thermal margin for sustained regulation, but higher leakage impacts low-power sleep modes | Select for non-battery applications where power dissipation >150 mW is expected |
Compared with BZX584-C12 and MMSZ5242B, DDZ9699T-7 offers the smallest footprint (SOD523) and lowest leakage (0.05 µA), making it optimal for ultra-compact, battery-sensitive designs where 150 mW dissipation suffices.
Availability
DDZ9699T-7 is available at Aetrix Electronics and suitable for USB PD interface protection, industrial sensor signal conditioning, and automotive body control modules requiring stable component supply with full RoHS and halogen-free compliance.
Supply support for DDZ9699T-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, industry-standard components for power management, signal integrity, and protection.
The DDZ9689T–DDZ9717T series targets space-constrained, low-power voltage reference and clamping applications, emphasizing sharp breakdown, low leakage, and green packaging for portable and eco-regulated electronics.
FAQ
What is the maximum reverse voltage before breakdown for DDZ9699T-7?
The DDZ9699T-7 exhibits sharp Zener breakdown starting at 11.4 V (minimum specified) and fully stabilizes at 12 V nominal. It is not rated for continuous operation above 12.6 V - exceeding this risks thermal runaway due to its 150 mW power limit and 833 °C/W thermal resistance.
Can DDZ9699T-7 be used in place of a 12 V linear regulator?
No - DDZ9699T-7 is a two-terminal shunt regulator, not a three-terminal series regulator. It requires a series current-limiting resistor and cannot source load current. It provides voltage reference or overvoltage clamping only, not regulated output delivery to variable loads.
Is the SOD523 package compatible with standard pick-and-place equipment?
Yes - the SOD523 package is JEDEC-compliant and widely supported by automated assembly systems. Its cathode band marking and standardized tape-and-reel packaging (3,000 units per reel, every-other-cavity dispensing) ensure reliable machine vision recognition and placement accuracy.
Does DDZ9699T-7 require derating at elevated temperatures?
Yes - the device must be derated linearly above +25°C ambient per Fig. 1: power dissipation drops to zero at +150°C. At +85°C, maximum allowable power is ~112 mW (derated by ~25%), requiring adjustment of series resistor values to maintain safe junction temperature.
DDZ9699T-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):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.1 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-523
DDZ9699T-7 FAQ
1.How can I place an order for DDZ9699T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9699T-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 DDZ9699T-7 reliable?
The price and inventory of DDZ9699T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9699T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9699T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9699T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9699T-7?
DDZ9699T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9699T-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 DDZ9699T-7?
For technical support, including DDZ9699T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9699T-7 requirements.
6.How does Aetrix verify that DDZ9699T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9699T-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 DDZ9699T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9699T-7?
All DDZ9699T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9699T-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 DDZ9699T-7 part is unused and in its original packaging.
Return procedure for DDZ9699T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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