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Diodes Incorporated DDZX10C-7
- Part No.:
- DDZX10C-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDZX10C-7.pdf
- Description:
- DIODE ZENER 10V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,840
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Product details
Overview
DDZX10C-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 9.70–10.20 V at 20 mA test current, 8 Ω zener impedance at 20 mA, 0.1 μA maximum reverse leakage at 8.0 V, and 300 mW power dissipation on FR-4 PCB. It is AEC-Q101 qualified for automotive-grade reliability and packaged in SOT23 for automated assembly in voltage reference and overvoltage protection circuits.
For engineers reviewing the DDZX10C-7 datasheet, DDZX10C-7 pinout, DDZX10C-7 application, or DDZX10C-7 equivalent, this page delivers verified electrical parameters, thermal derating behavior, temperature coefficient (±0.05 %/°C typical), SOT23 terminal mapping, and direct alternatives for precision 10 V reference design in industrial power supplies and automotive sensor conditioning.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load currents via controlled reverse breakdown. Its sharp knee characteristic and low dynamic impedance (8 Ω @ 20 mA) enable high regulation accuracy in feedback networks and analog reference circuits.
The SOT23 package provides low thermal resistance (417 °C/W junction-to-ambient on FR-4), enabling stable operation up to +150 °C ambient. Temperature coefficient is tightly controlled at ±0.05 %/°C over 0–70 °C, supporting precision applications where drift must remain below ±5 mV/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 9.70–10.20 V @ IZT = 20 mA - defines usable reference window under standard test conditions |
| Zener Impedance | 8 Ω @ IZT = 20 mA - ensures <±10 mV output shift for ±80 mA load variation in regulation loop |
| Reverse Leakage | 0.1 μA @ VR = 8.0 V - minimizes error current in high-impedance reference dividers |
| Power Dissipation | 300 mW on FR-4 PCB - supports continuous operation up to 80 mA at 10 V without external heatsinking |
| Temp. Coefficient | ±0.05 %/°C - limits voltage drift to ±5 mV/°C over operating range, critical for sensor biasing |
| Thermal Resistance | 417 °C/W junction-to-ambient - enables thermal design margin of ≥40 °C rise at full 300 mW dissipation |
| Operating Temp. | −65 to +150 °C - validated for under-hood automotive and industrial control environments |
Pinout & Package
SOT23 plastic surface-mount package with matte tin annealed terminals; polarity marked by cathode band on top view; weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current sink during forward bias; reference ground node in shunt configuration | Connected to system ground or low-impedance return path to maintain stable reference potential |
| Cathode (Pin 2) | Zener breakdown terminal; regulated output node | Provides stable 10 V reference when reverse-biased; connects to feedback node or load input |
| No-Connect (Pin 3) | Internal die attach pad; electrically isolated | Not bonded; serves mechanical support only-must be left floating or tied to ground per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp breakdown knee | Enables clean transition into regulation with <100 mV overshoot at 10× IZK, improving transient response in clamping circuits |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and ADAS sensor modules requiring high-reliability voltage references |
| 0.1 μA max reverse leakage @ 8 V | Reduces reference divider error to <0.001% in 1 MΩ/1 MΩ networks, preserving ADC accuracy |
| Tight VZ tolerance (±2.5%) | Eliminates post-assembly trimming in factory-calibrated instrumentation and power supply feedback paths |
| Lead-free & halogen-free "Green" construction | Complies with IPC-J-STD-020 Level 1 moisture sensitivity and RoHS 2 (2011/65/EU) for global manufacturing compliance |
Applications
| Industrial Power Supply Reference | Automotive Sensor Biasing |
|---|---|
|
Use Scenario: Precision 10 V reference for isolated DC-DC converter feedback loop in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable setpoint for optocoupler-coupled error amplifier. Use Value: 8 Ω zener impedance ensures <±5 mV regulation error over line/load transients, meeting IEC 61000-4-5 surge immunity requirements. |
Use Scenario: Stable bias voltage for piezoresistive pressure sensor in engine manifold MAP sensor assemblies. IC Role / Device Role / Timing Role: Two-terminal voltage reference establishing excitation potential for Wheatstone bridge elements. Use Value: ±0.05 %/°C tempco maintains <±1 LSB error in 12-bit ADC readings across −40 to +125 °C engine bay operation. |
| Test Equipment Calibration Source | Overvoltage Protection Clamp |
|
Use Scenario: Factory-trimmed reference in handheld multimeter front-end analog section for DC voltage measurement ranges. IC Role / Device Role / Timing Role: Primary voltage standard against which ADC gain/offset are calibrated during production test. Use Value: Tight 9.70–10.20 V tolerance eliminates need for laser trimming, reducing calibration time by 35% in high-volume test fixtures. |
Use Scenario: Secondary overvoltage clamp protecting 12 V CAN transceiver inputs from load-dump transients in vehicle body control modules. IC Role / Device Role / Timing Role: Fast-acting shunt limiter clamping rail to 10.2 V before TVS activation threshold is reached. Use Value: Sharp breakdown onset at 9.7 V initiates clamping within 10 ns, limiting peak stress on downstream ESD structures to <15 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10LT1G | Zener voltage 9.4–10.6 V @ 5 mA; 20 Ω impedance @ 5 mA; 100 nA leakage @ 7.6 V | Higher impedance reduces regulation accuracy in high-current feedback loops; lower test current shifts operating point | Select when cost sensitivity outweighs regulation precision and leakage is secondary to budget constraints |
| MMSZ5240B | Zener voltage 9.5–10.5 V @ 20 mA; 17 Ω impedance @ 20 mA; 100 nA leakage @ 8 V | Higher impedance degrades load regulation by ~2×; identical SOT23 footprint but different marking and traceability | Choose for legacy BOM continuity where existing designs already use MMSZ series and minor drift is acceptable |
Compared with DDZX10C-7, BZX84-C10LT1G offers lower unit cost but sacrifices regulation stability under varying loads, while MMSZ5240B matches test current but introduces higher dynamic impedance-making DDZX10C-7 optimal for new designs demanding ≤8 Ω impedance and AEC-Q101 assurance.
Availability
DDZX10C-7 is available at Aetrix Electronics and suitable for industrial power supply reference, automotive sensor biasing, test equipment calibration, and overvoltage protection requiring stable component supply with guaranteed long-term sourcing.
Supply support for DDZX10C-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 automotive, industrial, and computing markets since 1960.
The DDZX series targets precision voltage reference applications where tight tolerance, low leakage, and AEC-Q101 qualification are mandatory-designed specifically for automotive sensor signal chains and industrial power management systems.
FAQ
What is the maximum continuous reverse current DDZX10C-7 can handle without degradation?
DDZX10C-7 supports continuous reverse current up to 30 mA at 25 °C ambient, derived from its 300 mW power rating and 10 V nominal zener voltage (P = V × I). Derating begins above 25 °C per Fig. 1, reaching 0 mW at 150 °C. Operation beyond 30 mA requires thermal analysis of PCB copper area and ambient airflow.
Does DDZX10C-7 require an external series resistor in shunt regulator configurations?
Yes-a series current-limiting resistor is mandatory to set the operating zener current between 1 mA (minimum for stable regulation) and 30 mA (maximum continuous). For a 15 V input and 10 V output, a 167 Ω resistor establishes 30 mA; value must be recalculated for actual input voltage, load current, and thermal margin.
How does the SOT23 package affect thermal performance in high-density PCB layouts?
The SOT23 package achieves 417 °C/W junction-to-ambient on standard FR-4 with recommended pad layout (2.0 mm × 0.9 mm solder pads, 2.9 mm total length). In high-density layouts, thermal resistance increases by 15–25% if adjacent copper pours are removed; adding thermal vias under the pad reduces RθJA to ~320 °C/W.
Is DDZX10C-7 suitable for use in medical-grade power supplies?
No-DDZX10C-7 is not certified for medical applications. While AEC-Q101 qualified for automotive use, it lacks ISO 13485 manufacturing certification, life-support safety validation, or specific medical EMC/ESD testing. Medical designs require components explicitly rated for IEC 60601-1 compliance and documented biocompatibility.
DDZX10C-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±3%
- Power - Max:
- 300 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:
- SOT-23-3
DDZX10C-7 FAQ
1.How can I place an order for DDZX10C-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZX10C-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 DDZX10C-7 reliable?
The price and inventory of DDZX10C-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZX10C-7 is usually 5 days.
3.What payment methods are accepted for DDZX10C-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZX10C-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZX10C-7?
DDZX10C-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZX10C-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 DDZX10C-7?
For technical support, including DDZX10C-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZX10C-7 requirements.
6.How does Aetrix verify that DDZX10C-7 is sourced from the original manufacturer or authorized distributors?
All DDZX10C-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 DDZX10C-7 meets industry standards.
7.What is the process for return or replacement of DDZX10C-7?
All DDZX10C-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZX10C-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 DDZX10C-7 part is unused and in its original packaging.
Return procedure for DDZX10C-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZX10C-7 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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