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Diodes Incorporated DDZ10C-7
- Part No.:
- DDZ10C-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ10C-7.pdf
- Description:
- DIODE ZENER 10V 470MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,158
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Product details
Overview
DDZ10C-7 from Diodes Incorporated is a surface-mount precision Zener diode designed for voltage regulation and reference applications in low-power analog circuits. It delivers a tightly controlled zener voltage of 9.70–10.20 V at 20 mA test current, with maximum zener impedance of 8 Ω at IZT, reverse current ≤0.1 µA at 8.0 V, and operates across –65°C to +150°C. Used in power supply feedback loops, ADC reference buffers, and overvoltage protection circuits.
For engineers reviewing the DDZ10C-7 datasheet, DDZ10C-7 pinout, DDZ10C-7 application, or DDZ10C-7 equivalent, this page provides verified package dimensions, thermal derating curves, zener impedance vs. voltage data, temperature coefficient behavior (±0.04%/°C typical), and SOD123 terminal layout guidance - all critical for stable reference design and PCB layout validation.
Technical Context
This device functions as a two-terminal shunt voltage regulator, maintaining stable output voltage by conducting reverse current above its specified breakdown threshold. Its low dynamic impedance (8 Ω @ 20 mA) ensures minimal voltage deviation under load transients, while its tight VZ tolerance (±2.5% at 10 V nominal) supports high-accuracy analog signal conditioning.
The SOD123 package enables automated placement and reflow compatibility, with thermal resistance RθJA rated at 425 °C/W on minimal pad layout and 266 °C/W on 1-in² copper. Its cathode band marking and matte tin–annealed Alloy 42 terminals ensure reliable solderability per MIL-STD-202, Method 208.
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 networks |
| Zener Impedance (ZZT) | 8 Ω max @ 20 mA - ensures <±20 mV shift under ±16 mA load change |
| Reverse Current (IR) | ≤0.1 µA @ VR = 8.0 V - guarantees minimal leakage in high-impedance reference nodes |
| Power Dissipation (PD) | 294 mW @ TA = 25°C (min pad), 470 mW @ TL = 75°C - sets safe operating envelope for continuous bias |
| Temp. Coefficient (TCVZ) | ±0.04%/°C typical (Fig. 16–17) - enables <±0.5% drift over –40°C to +85°C ambient |
| Package | SOD123 - 2.65 mm × 1.55 mm footprint, 0.30 mm lead length, RoHS-compliant green molding compound |
| Operating Temp. | –65°C to +150°C - supports industrial and automotive under-hood environments |
Pinout & Package
DDZ10C-7 uses the SOD123 surface-mount package: a 2-pin, cathode-band-marked, single-ended diode configuration. The cathode terminal is identified by a visible band on the molded body; the anode is the unmarked end. No polarity reversal or dual-anode variants exist in this series.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to circuit node requiring stable reference; sinks current to maintain VZ |
| Anode (unmarked end) | Reference ground return | Typically tied to system ground or feedback divider low-side; completes shunt path |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.5% at 10 V nominal - eliminates need for post-layout trimming in 12-bit ADC references |
| Low dynamic impedance | 8 Ω max - maintains regulation stability under fast load steps in LDO error amplifiers |
| Ultra-low leakage current | 0.1 µA @ 8 V - preserves accuracy in high-resistance voltage dividers (>1 MΩ) |
| Automated assembly compatibility | SOD123 footprint with J-STD-020 Level 1 moisture sensitivity - zero bake requirement before reflow |
| Halogen- and antimony-free "Green" construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - meets IPC-1752a Class 3 material declarations |
Applications
| Power Supply Feedback Reference | ADC Voltage Reference Buffer |
|---|---|
|
Use Scenario: Stabilizing output voltage in isolated flyback or buck converter feedback loop via optocoupler-coupled TL431 replacement. IC Role / Device Role / Timing Role: Shunt reference providing precise 10 V threshold to drive optocoupler LED current. Use Value: Enables ±1% output regulation without external trimming; low TCVZ minimizes thermal drift across 0–70°C operating range. |
Use Scenario: Generating stable 10 V reference for 12-bit SAR ADC input scaling in data acquisition modules. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source driving ADC reference pin through RC filter. Use Value: 8 Ω ZZT prevents reference droop during ADC sampling transients; 0.1 µA leakage avoids gain error in 10 MΩ input dividers. |
| Overvoltage Clamp Protection | Temperature-Stable Bias Generator |
|
Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 10 V in industrial sensor interfaces. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess energy to ground when VIN > VZ. Use Value: 294 mW dissipation rating handles 100 ms surge events up to 294 mA; SOD123 thermal mass limits peak junction rise. |
Use Scenario: Establishing fixed bias point for op-amp input stages in precision instrumentation amplifiers. IC Role / Device Role / Timing Role: Stable DC reference node compensating for amplifier input offset drift. Use Value: ±0.04%/°C TCVZ contributes <±0.4 mV/°C drift to 10 V node - lower than typical op-amp input offset drift. |
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 | VZ = 9.8–10.4 V (±5%), ZZT = 20 Ω @ 5 mA, PD = 300 mW | Higher impedance reduces regulation accuracy in low-current feedback paths | Acceptable where ±5% VZ tolerance and higher ZZT are acceptable; same SOT-23 footprint |
| MMSZ4689T1G | VZ = 9.7–10.3 V (±5%), ZZT = 15 Ω @ 5 mA, PD = 500 mW | Higher power rating but looser tolerance and higher impedance limit precision use | Preferred for higher-power clamping; not recommended for sub-1% reference designs |
Compared with BZX84-C10LT1G and MMSZ4689T1G, DDZ10C-7 offers tighter VZ tolerance (±2.5% vs. ±5%), lower ZZT (8 Ω vs. ≥15 Ω), and verified low-leakage performance - making it uniquely suitable for 12-bit+ reference and closed-loop regulation where drift and noise matter.
Availability
DDZ10C-7 is available at Aetrix Electronics and suitable for industrial power supplies, precision data acquisition systems, and automotive sensor interface modules requiring stable component supply, long-term lifecycle support, and traceable green-material compliance.
Supply support for DDZ10C-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 ICs, specializing in high-reliability, industry-qualified components for automotive, industrial, and computing markets.
The DDZ series targets precision voltage reference needs in space-constrained, thermally demanding applications - optimized for SOD123 assembly, low-drift operation, and AEC-Q101 readiness (Q-grade variants).
FAQ
What is the maximum continuous power dissipation for DDZ10C-7 at 75°C lead temperature?
DDZ10C-7 supports 500 mW continuous power dissipation when lead temperature (TL) is maintained at +75°C, as specified in the Absolute Maximum Ratings table. This rating assumes proper PCB copper thermal relief and applies only when the device is mounted with adequate heatsinking to the lead frame - not ambient air conditions.
Does DDZ10C-7 have AEC-Q101 qualification?
No - DDZ10C-7 is the commercial-grade variant. The automotive-qualified version is DDZ10CQ-7, which carries AEC-Q101 qualification, PPAP capability, and is manufactured in IATF16949-certified facilities. Electrical specifications are identical, but qualification documentation and lot traceability differ.
How does the temperature coefficient behave near 10 V nominal zener voltage?
Per Figure 16–17 in DS30407 Rev. 21-2, DDZ10C exhibits a typical temperature coefficient of ±0.04%/°C across –40°C to +125°C. This low, near-zero TC occurs because 10 V falls at the crossover point between positive and negative TC regions in silicon Zeners - enabling minimal drift in reference applications.
Can DDZ10C-7 be used in place of a 10 V TL431-based shunt regulator?
Yes, but only in non-feedback configurations. DDZ10C-7 is a passive two-terminal device and cannot replicate the adjustable, high-gain, current-sink behavior of TL431. It serves best as a fixed-voltage clamp or simple reference; for active regulation, a TL431 or similar IC remains necessary.
DDZ10C-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):
- 10 V
- Tolerance:
- ±2.5%
- Power - Max:
- 470 mW
- Impedance (Max) (Zzt):
- 8 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-123
DDZ10C-7 FAQ
1.How can I place an order for DDZ10C-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ10C-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 DDZ10C-7 reliable?
The price and inventory of DDZ10C-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ10C-7 is usually 5 days.
3.What payment methods are accepted for DDZ10C-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ10C-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ10C-7?
DDZ10C-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ10C-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 DDZ10C-7?
For technical support, including DDZ10C-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ10C-7 requirements.
6.How does Aetrix verify that DDZ10C-7 is sourced from the original manufacturer or authorized distributors?
All DDZ10C-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 DDZ10C-7 meets industry standards.
7.What is the process for return or replacement of DDZ10C-7?
All DDZ10C-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ10C-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 DDZ10C-7 part is unused and in its original packaging.
Return procedure for DDZ10C-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ10C-7 Tags
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