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Diodes Incorporated DDZ9716-7
- Part No.:
- DDZ9716-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9716-7.pdf
- Description:
- DIODE ZENER 39V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,920
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Product details
Overview
DDZ9716-7 from Diodes Incorporated is a surface-mount low-current Zener diode with a nominal zener voltage of 39 V (min 37.05 V, max 40.95 V), rated for 500 mW power dissipation on FR-4 PCB at TL = +75°C, specified at 50 µA test current, and housed in an SOD123 package. It serves as a precision voltage reference or overvoltage clamp in low-power, battery-operated circuits such as portable sensor nodes and wearables.
For engineers reviewing the DDZ9716-7 datasheet, DDZ9716-7 pinout, DDZ9716-7 application, or DDZ9716-7 equivalent, key selection criteria include its 39 V zener tolerance (±5%), ultra-low reverse leakage (≤0.05 µA @ 29.6 V), temperature coefficient (~+0.08 %/°C), and SOD123 footprint compatibility with automated assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation under low bias conditions. Its 50 µA test current enables accurate characterization in micro-power systems where traditional 5–20 mA zener test currents are impractical.
The device exhibits a positive temperature coefficient of approximately +0.08 %/°C near 39 V, indicating voltage increases with junction temperature - a critical factor when designing thermal-stable references across -65°C to +150°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 39 V - precise clamping/reference point for 3.3 V or 5 V rail monitoring circuits |
| Zener Voltage Range | 37.05 V to 40.95 V - ±5% tolerance ensures predictable trip points in protection designs |
| Test Current (IZT) | 50 µA - enables use in nanoamp-bias circuits without loading sensitive sources |
| Max Reverse Leakage (IR) | 0.05 µA @ 29.6 V - negligible current draw preserves battery life in always-on applications |
| Power Dissipation | 500 mW @ TL = +75°C - supports moderate transient energy absorption on standard FR-4 layouts |
| Junction-to-Lead RθJL | 150 °C/W - allows direct thermal coupling to PCB copper for improved reliability in compact designs |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking; dimensions: 1.55 mm width × 2.65 mm length × 1.05 mm height; RoHS-compliant matte tin finish over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in clamp configuration | Connected to ground or lower-potential node during reverse-bias operation |
| Cathode | Zener breakdown terminal / high-side connection in clamp configuration | Marked with band; connects to protected node or reference input requiring stable voltage |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - eliminates need for high-current bias networks in ultra-low-power systems |
| Automated assembly compatibility | SOD123 footprint with J-STD-020 Level 1 moisture sensitivity - supports high-yield reflow without baking |
| Thermal stability | +0.08 %/°C tempco near 39 V - enables predictable drift compensation in temperature-critical references |
| Green compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets automotive and industrial environmental mandates |
Applications
| Battery Voltage Monitor | Low-Power Sensor Reference |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in wearable health trackers with 3.3 V MCU and coin-cell supply. IC Role / Device Role / Timing Role: Zener provides stable 39 V reference for resistive divider scaling cell voltage into ADC input range. Use Value: 50 µA test current avoids draining µA-level sleep current; ±5% tolerance ensures accurate SOC estimation within 2% error. |
Use Scenario: Supplying reference voltage to analog front-end of environmental sensor (e.g., CO₂ or humidity IC) in IoT edge node. IC Role / Device Role / Timing Role: Acts as precision shunt reference for op-amp-based signal conditioning circuitry. Use Value: Low 0.05 µA leakage prevents reference error accumulation; SOD123 size fits 2-layer PCB space constraints. |
| ESD Protection Clamp | Microcontroller Reset Circuit |
Use Scenario: Protecting USB-C CC line from ESD transients in portable docking station. IC Role / Device Role / Timing Role: Shunt clamp activated above 39 V to divert IEC 61000-4-2 ±8 kV contact discharge energy. Use Value: 500 mW rating handles short-duration pulses; fast response avoids damage to downstream PHY ICs. |
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU during brown-out events. IC Role / Device Role / Timing Role: Zener-based comparator threshold set to trigger reset when 5 V rail drops below 4.2 V. Use Value: Tight 37.05–40.95 V range ensures consistent trip point across temperature; cathode-band polarity simplifies layout verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C39LT1G | Same 39 V nominal, but rated at 300 mW and tested at 5 mA - higher leakage (1 µA @ 30.4 V) and wider tolerance (±5% vs ±5%, but tighter min/max spread) | Less suitable for sub-µA bias circuits; better for higher-current regulator feedback paths | Select when board space allows SO-23 and thermal design accommodates lower power rating |
| MMSZ5241B-7-F | 39 V nominal, 500 mW rating, but specified at 20 mA test current and higher leakage (1 µA @ 29.6 V); SOD-123 same footprint | Higher bias requirement limits use in nanoamp systems; slightly inferior tempco stability | Prefer when legacy BOM alignment with Microchip portfolio is required and leakage budget permits |
Compared with BZX84-C39LT1G and MMSZ5241B-7-F, DDZ9716-7 uniquely delivers 50 µA test current capability and 0.05 µA leakage - making it the only option among the three viable for true ultra-low-power voltage supervision and battery monitoring.
Availability
DDZ9716-7 is available at Aetrix Electronics and suitable for battery-powered wearables, industrial sensor nodes, and automotive body electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DDZ9716-7 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 DDZ9678–DDZ9717 series belongs to Diodes' precision low-current Zener portfolio, engineered specifically for voltage reference, overvoltage protection, and biasing in space-constrained, energy-sensitive applications.
FAQ
What is the maximum reverse voltage before breakdown for DDZ9716-7?
The DDZ9716-7 begins controlled zener breakdown at its nominal voltage of 39 V, with guaranteed operation between 37.05 V (minimum) and 40.95 V (maximum) at 50 µA test current. It is not rated for continuous operation above 40.95 V in reverse bias without exceeding power or thermal limits.
Can DDZ9716-7 be used in automotive applications?
Yes - the automotive-grade variant DDZ9716Q-7 is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. The standard DDZ9716-7 is not automotive-qualified and should not be deployed in safety-critical vehicle systems.
How does the 50 µA test current affect circuit design?
The 50 µA test current means the diode achieves its specified zener voltage with minimal bias - enabling direct use in high-impedance divider networks or with nanoamp-level current sources. This eliminates the need for additional bias resistors that would otherwise load sensitive analog nodes or drain battery capacity.
Is the SOD123 package compatible with standard reflow profiles?
Yes - the SOD123 package has J-STD-020 moisture sensitivity level 1, meaning it can be stored indefinitely at ambient conditions and processed using standard Pb-free reflow profiles (peak 260°C) without pre-baking, supporting high-throughput automated assembly.
DDZ9716-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 29.6 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
DDZ9716-7 FAQ
1.How can I place an order for DDZ9716-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9716-7 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 DDZ9716-7 reliable?
The price and inventory of DDZ9716-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9716-7 is usually 5 days.
3.What payment methods are accepted for DDZ9716-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9716-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9716-7?
DDZ9716-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9716-7 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 DDZ9716-7?
For technical support, including DDZ9716-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9716-7 requirements.
6.How does Aetrix verify that DDZ9716-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9716-7 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 DDZ9716-7 meets industry standards.
7.What is the process for return or replacement of DDZ9716-7?
All DDZ9716-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9716-7, 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 DDZ9716-7 part is unused and in its original packaging.
Return procedure for DDZ9716-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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