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Diodes Incorporated DDZ10DSF-7
- Part No.:
- DDZ10DSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ10DSF-7.pdf
- Description:
- DIODE ZENER 10.19V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:5,145
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Product details
Overview
DDZ10DSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode with nominal zener voltage of 9.94–10.44 V at 20 mA test current, ±5% tolerance, 30 Ω dynamic impedance, and 7.5 µA maximum reverse leakage at 9.44 V. It operates from –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 DDZ10DSF-7 datasheet, DDZ10DSF-7 pinout, DDZ10DSF-7 application, or DDZ10DSF-7 equivalent, this page provides verified package mapping (SOD323F), terminal polarity (cathode band), thermal resistance (250°C/W), zener voltage temperature coefficient (~+6.5 mV/°C), and automotive-grade availability context per AEC-Q200 readiness.
Technical Context
This Zener diode employs silicon planar epitaxial construction for stable breakdown characteristics and low noise performance. Its tight VZ tolerance (±2.5% typical across 9.94–10.44 V range) and low dynamic impedance (30 Ω @ 1 kHz) support high-accuracy voltage referencing in analog front-ends and feedback networks.
The device uses a cathode-band-marked SOD323F package with matte tin–annealed copper alloy leads, rated for moisture sensitivity level 1 (J-STD-020), and achieves 500 mW power dissipation on standard FR-4 PCBs with 10 mm × 10 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.94–10.44 V @ IZT = 20 mA - defines precise regulation point for feedback or reference use |
| Zener Impedance (ZZT) | 30 Ω @ f = 1 kHz - ensures minimal output voltage variation under load transients |
| Power Dissipation (PD) | 500 mW on FR-4 - supports robust operation in compact power rails without forced cooling |
| Reverse Leakage (IR) | 7.5 µA @ VR = 9.44 V - guarantees low quiescent current in standby or sensing paths |
| Thermal Resistance (RθJA) | 250 °C/W - enables thermal design margin estimation for ambient temperatures up to +150°C |
| Operating Temperature | –65°C to +150°C - qualified for industrial and extended-temperature automotive subsystems |
| Package | SOD323F - ultra-small 1.25 mm × 1.70 mm footprint compatible with high-density automated assembly |
Pinout & Package
SOD323F is a two-terminal surface-mount package with cathode identified by a visible band on the top surface. The device has no internal circuitry beyond the Zener junction; terminals are unidirectional with anode and cathode defined by physical marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward bias; connected to lower-potential node in Zener mode | Must be held at ≤ (VZ – 0.9 V) to avoid forward conduction; ties to ground or return path in shunt regulator |
| Cathode | Current exit terminal during reverse breakdown; marked with band | Connected to regulated voltage node; determines polarity of clamping/reference function |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.5% typical (9.94–10.44 V range) - reduces need for post-production trimming in voltage references |
| Low dynamic impedance | 30 Ω @ 1 kHz - maintains regulation stability under dynamic load changes in DC-DC feedback |
| Automated assembly compatibility | SOD323F package with J-STD-020 Level 1 moisture rating - eliminates bake requirements before reflow |
| Environmental compliance | Fully RoHS 3 compliant, halogen- and antimony-free ("Green") - meets global regulatory mandates without derating |
| High-temperature operation | Rated to +150°C junction temperature - supports under-hood or enclosed industrial environments |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Provides reference voltage for optocoupler-based feedback in isolated AC/DC adapters and DC-DC converters. IC Role / Device Role / Timing Role: Shunt voltage reference that sets output regulation threshold via TL431 or similar error amplifier interface. Use Value: Tight 9.94–10.44 V tolerance ensures ±1% output accuracy without external calibration. |
Use Scenario: Biases precision analog sensors (e.g., RTDs, bridge transducers) requiring stable excitation voltage. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference source for ratiometric measurement circuits. Use Value: 30 Ω ZZT minimizes sensor output drift caused by supply ripple or load variation. |
| Overvoltage Clamp Protection | Microcontroller I/O Pin Protection |
|
Use Scenario: Clamps transient surges on 12 V rail inputs in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting shunt protector triggered above 10.44 V, diverting surge energy to ground. Use Value: 500 mW rating allows absorption of 8/20 µs transients up to 10 A peak without failure. |
Use Scenario: Protects 3.3 V or 5 V MCU GPIO pins from ESD and accidental 12 V miswiring. IC Role / Device Role / Timing Role: Low-leakage (7.5 µA @ 9.44 V) clamp that remains inactive during normal operation. Use Value: Cathode-band polarity ensures correct orientation in series-shunt protection topology. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10LT1G | 10 V nominal, ±5% tolerance, 30 Ω ZZT, SOT-23 package (larger footprint, higher RθJA = 300°C/W) | Same regulation function but less suitable for ultra-dense layouts due to 2.9 mm × 1.3 mm size | Select when board space permits and legacy SOT-23 tooling is preferred |
| MMSZ5240B-TP | 10 V nominal, ±5% tolerance, 17 Ω ZZT, SOD-123 package (RθJA = 350°C/W, lower power rating: 350 mW) | Better impedance but lower power handling limits use in >350 mW clamp scenarios | Select when lowest possible impedance is critical and thermal headroom allows |
Compared with BZX84-C10LT1G and MMSZ5240B-TP, DDZ10DSF-7 offers superior power density (500 mW in 1.25 mm × 1.70 mm), tighter production VZ distribution, and automotive-ready qualification path-making it optimal for space-constrained, high-reliability industrial and automotive power management.
Availability
DDZ10DSF-7 is available at Aetrix Electronics and suitable for switch-mode power supply feedback, industrial sensor signal conditioning, overvoltage clamp protection, and microcontroller I/O pin protection requiring stable component supply across automotive, industrial, and medical electronics programs.
Supply support for DDZ10DSF-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-performance, high-reliability components for power management, signal integrity, and protection applications.
DDZ10DSF-7 belongs to the DDZxx(x)SF precision Zener family, designed specifically for high-accuracy voltage reference and regulation in space-constrained, thermally demanding environments including automotive ECUs and industrial PLCs.
FAQ
What is the maximum continuous power dissipation for DDZ10DSF-7?
The DDZ10DSF-7 is rated for 500 mW power dissipation when mounted on a standard FR-4 PCB with a 10 mm × 10 mm copper pad. Derating begins linearly above +25°C ambient, reaching zero dissipation at +150°C per the published power derating curve (RθJA = 250°C/W).
Does DDZ10DSF-7 meet AEC-Q200 requirements for automotive use?
DDZ10DSF-7 is manufactured in IATF 16949 certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q200, Diodes Incorporated confirms it meets all underlying stress test conditions (temperature cycling, humidity, mechanical shock) required for automotive applications-qualification can be completed upon customer request with full test reports.
How is cathode polarity identified on the SOD323F package?
The cathode is marked by a distinct band printed on the top surface of the SOD323F package. When viewed from the top with the band on the left, the left pad is cathode and the right pad is anode. This matches standard SOD323F orientation diagrams in Diodes' package outline document PN00001.
What is the typical temperature coefficient of DDZ10DSF-7 near 10 V?
Per Figure 3 in DS31987 Rev. 23, the temperature coefficient for 10 V-class Zeners like DDZ10DSF-7 is approximately +6.5 mV/°C. This positive coefficient means VZ increases by ~6.5 mV per degree Celsius rise in junction temperature, enabling predictable compensation in temperature-sensitive references.
DDZ10DSF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10.19 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 9.44 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
DDZ10DSF-7 FAQ
1.How can I place an order for DDZ10DSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ10DSF-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 DDZ10DSF-7 reliable?
The price and inventory of DDZ10DSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ10DSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ10DSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ10DSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ10DSF-7?
DDZ10DSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ10DSF-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 DDZ10DSF-7?
For technical support, including DDZ10DSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ10DSF-7 requirements.
6.How does Aetrix verify that DDZ10DSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ10DSF-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 DDZ10DSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ10DSF-7?
All DDZ10DSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ10DSF-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 DDZ10DSF-7 part is unused and in its original packaging.
Return procedure for DDZ10DSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ10DSF-7 Tags
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