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Diodes Incorporated DDZ10CSF-7
- Part No.:
- DDZ10CSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ10CSF-7.pdf
- Description:
- DIODE ZENER 9.95V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
DDZ10CSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode with nominal zener voltage of 9.70–10.20 V at 20 mA test current, ±5% tolerance, 30 Ω dynamic impedance at 1 kHz, and 7.5 µA maximum reverse leakage at 9.22 V. It operates across –65°C to +150°C and is used for voltage regulation and reference in power supply feedback loops, analog sensor biasing, and overvoltage protection circuits.
For engineers reviewing the DDZ10CSF-7 datasheet, DDZ10CSF-7 pinout, DDZ10CSF-7 application, or DDZ10CSF-7 equivalent, key selection criteria include zener voltage tightness (±5%), low thermal resistance (250°C/W), SOD323F package compatibility with automated assembly, and compliance with AEC-Q200-ready manufacturing processes.
Technical Context
This Zener diode functions as a two-terminal voltage reference device, maintaining stable reverse-biased breakdown voltage under controlled current conditions. Its 20 mA zener test current and 30 Ω impedance ensure predictable regulation in low-power analog and feedback circuits.
Designed for operation on FR-4 PCBs with 10 mm × 10 mm copper pads, it delivers 500 mW power dissipation with thermal resistance of 250°C/W. The SOD323F package supports reflow soldering and meets J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.70–10.20 V @ IZT = 20 mA - defines precise regulation point for feedback and reference use |
| Power Dissipation (PD) | 500 mW on FR-4 PCB - enables stable operation without heatsinking in compact layouts |
| Zener Impedance (ZZT) | 30 Ω @ f = 1 kHz - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 7.5 µA @ VR = 9.22 V - guarantees low quiescent current in standby and precision biasing |
| Operating Temperature | –65°C to +150°C - supports industrial and automotive under-hood applications |
| Package | SOD323F - ultra-small 1.25 mm × 1.70 mm footprint compatible with high-density PCB assembly |
| Thermal Resistance (RθJA) | 250°C/W - allows accurate junction temperature estimation for reliability analysis |
Pinout & Package
Package: SOD323F - molded plastic, halogen- and antimony-free "Green" compound, UL 94V-0 rated, cathode band marking, matte tin annealed terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; establishes reference polarity |
| Cathode | Zener breakdown terminal / regulated output node | Connected to regulated voltage rail; supplies stable reference when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage regulation | ±5% zener voltage tolerance (9.70–10.20 V) enables accurate feedback in SMPS and LDOs |
| Automated assembly compatibility | SOD323F package with J-STD-020 Level 1 moisture rating supports high-yield reflow processes |
| Low thermal resistance | 250°C/W RθJA permits reliable 500 mW operation on standard FR-4 without thermal derating |
| Environmental compliance | Fully RoHS 3 compliant, halogen- and antimony-free, lead-free per EU Directive 2015/863/EU |
| High-reliability construction | Molded plastic housing with matte tin annealed copper alloy leadframe ensures long-term solder joint integrity |
Applications
| Power Supply Feedback | Sensor Bias Reference |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck converter feedback networks. IC Role / Device Role / Timing Role: Zener diode provides stable voltage reference to optocoupler input or TL431 cathode. Use Value: Tight 9.70–10.20 V tolerance ensures ±1% output regulation accuracy across temperature and line variations. |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors. IC Role / Device Role / Timing Role: Acts as low-drift, low-noise voltage source for ratiometric sensor signal conditioning. Use Value: 30 Ω impedance and <7.5 µA leakage minimize sensor offset error and self-heating effects. |
| Overvoltage Clamp | Microcontroller Reset Circuit |
Use Scenario: Protecting I/O pins or ADC inputs from transient overvoltage events. IC Role / Device Role / Timing Role: Clamps voltage to ≤10.20 V during ESD or surge events, diverting excess current to ground. Use Value: Fast response and 500 mW dissipation capability absorb short-duration transients without failure. |
Use Scenario: Generating clean, temperature-stable reset threshold for microcontrollers in industrial controllers. IC Role / Device Role / Timing Role: Supplies reference voltage to external reset supervisor IC or comparator input. Use Value: –65°C to +150°C operating range ensures reliable reset assertion across extended environmental conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10LT1G | 10 V nominal, ±5%, 300 mW, SOT-23 package, 40 Ω ZZT | Lower power rating and higher impedance reduce regulation stability in high-current feedback paths | Select when board space allows SOT-23 and thermal budget is constrained below 400 mW |
| MMSZ5240B-TP | 10 V nominal, ±5%, 500 mW, SOD-123 package, 17 Ω ZZT, 100 µA IR @ 8.5 V | Higher leakage current degrades accuracy in low-power sensor biasing and high-impedance references | Prefer where lower dynamic impedance is critical and leakage tolerance >10 µA is acceptable |
Compared with BZX84-C10LT1G and MMSZ5240B-TP, DDZ10CSF-7 offers superior thermal performance (250°C/W), tighter leakage control (7.5 µA), and SOD323F's smaller footprint-making it optimal for space-constrained, high-accuracy voltage reference designs requiring automotive-grade manufacturability.
Availability
DDZ10CSF-7 is available at Aetrix Electronics and suitable for power supply feedback networks, sensor biasing circuits, overvoltage clamping, and microcontroller reset generation requiring stable component supply and full traceability.
Supply support for DDZ10CSF-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 components for industrial, automotive, and computing markets.
The DDZ series targets precision voltage reference applications demanding tight tolerance, low leakage, and robust thermal performance in compact surface-mount packages.
FAQ
What is the maximum continuous reverse current DDZ10CSF-7 can handle without degradation?
DDZ10CSF-7 is rated for 20 mA zener test current and 500 mW power dissipation. Continuous operation above 20 mA requires thermal derating per the power derating curve (Fig. 1), with absolute maximum junction temperature limited to +150°C. Sustained currents beyond 25 mA on standard FR-4 may exceed thermal limits.
Does DDZ10CSF-7 meet AEC-Q200 stress testing requirements?
DDZ10CSF-7 is manufactured in IATF 16949 certified facilities and qualified to AEC-Q200 for passive components. While not individually tested per AEC-Q200, its process flow, material set, and qualification status align with automotive-grade passive reliability standards per Diodes Incorporated's product definitions.
How does the SOD323F package affect solder joint reliability compared to SOD-123?
SOD323F features a shorter leadframe and optimized pad layout (L2 = 0.51 mm) that reduces mechanical stress during thermal cycling. Its 0.25–0.35 mm lead width and 7° chamfer improve wetting and void reduction versus SOD-123, enhancing long-term solder joint integrity in vibration-prone environments.
Can DDZ10CSF-7 be used in place of a 10 V TL431-based shunt regulator?
No-DDZ10CSF-7 is a two-terminal Zener diode, lacking the adjustable reference, internal amplifier, and current-sink capability of TL431. It serves only as a fixed-voltage clamp or reference; replacing TL431 requires redesigning feedback topology and adding external pass elements for active regulation.
DDZ10CSF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 9.95 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 9.22 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
DDZ10CSF-7 FAQ
1.How can I place an order for DDZ10CSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ10CSF-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 DDZ10CSF-7 reliable?
The price and inventory of DDZ10CSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ10CSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ10CSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ10CSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ10CSF-7?
DDZ10CSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ10CSF-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 DDZ10CSF-7?
For technical support, including DDZ10CSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ10CSF-7 requirements.
6.How does Aetrix verify that DDZ10CSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ10CSF-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 DDZ10CSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ10CSF-7?
All DDZ10CSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ10CSF-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 DDZ10CSF-7 part is unused and in its original packaging.
Return procedure for DDZ10CSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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