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Diodes Incorporated DDZX7V5C-13
- Part No.:
- DDZX7V5C-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDZX7V5C-13.pdf
- Description:
- DIODE ZENER 7.5V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,982
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Product details
Overview
DDZX7V5C-13 from Diodes Incorporated is a surface-mount precision Zener diode in SOT23 package, rated for 300 mW power dissipation on FR-4 PCB, with nominal zener voltage of 7.5 V (min 7.29 V, max 7.67 V at IZT = 20 mA), zener impedance of 6 Ω at IZT, and reverse leakage current ≤0.5 μA at VR = 6.0 V. It serves as a stable voltage reference in low-power analog circuits and power supply feedback paths.
For engineers reviewing the DDZX7V5C-13 datasheet, DDZX7V5C-13 pinout, DDZX7V5C-13 application, or DDZX7V5C-13 equivalent, this part is selected for high-precision voltage regulation where tight VZ tolerance (±1.8%), low dynamic impedance, AEC-Q101 qualification, and green RoHS compliance are required in automotive and industrial designs.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its sharp breakdown characteristics and low leakage (<0.5 μA at 6.0 V) enable accurate regulation in low-current bias networks and sensing circuits.
The device exhibits a temperature coefficient of approximately +0.04 %/°C near 7.5 V (per Fig. 16), and its thermal resistance (RθJA) is 417 °C/W when mounted on FR-4 with recommended pad layout - critical for derating above +25°C ambient per Fig. 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.29–7.67 V at IZT = 20 mA - ensures ±1.8% initial accuracy for stable reference generation |
| Zener Impedance (ZZT) | 6 Ω at IZT = 20 mA - minimizes output voltage variation under dynamic load changes |
| Power Dissipation (PD) | 300 mW on FR-4 PCB - defines maximum continuous power handling without forced cooling |
| Reverse Leakage (IR) | ≤0.5 μA at VR = 6.0 V - preserves low quiescent current in battery-powered reference circuits |
| Thermal Resistance (RθJA) | 417 °C/W - determines junction-to-ambient temperature rise per watt, guiding PCB thermal design |
| Operating Temperature | −65 to +150 °C - supports extended-range operation in under-hood automotive and industrial environments |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin annealed terminals, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground node | Connected to circuit ground or lower-potential node in shunt regulator configuration |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 7.5 V reference relative to anode; connects to feedback input or load |
| No-Connect (Pin 3) | Internal die attach flag / mechanical support | Not electrically connected; must remain unconnected in PCB layout to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp breakdown characteristics | Enables precise regulation onset with minimal knee voltage spread - critical for low-voltage margining |
| Tight VZ tolerance (±1.8%) | Reduces need for post-production trimming in voltage reference circuits, lowering test cost |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Lead-free, halogen- and antimony-free "Green" construction | Meets global environmental compliance (RoHS 2, JEDEC J-STD-020 Level 1) without performance trade-offs |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Provides stable 7.5 V reference for ADC biasing and op-amp offset calibration in ECU analog front-ends. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining accuracy across −40°C to +125°C ambient. Use Value: Enables <±0.5% total system reference error over temperature, meeting ASIL-B functional safety requirements. |
Use Scenario: Sets precision bias point for bridge sensor amplifiers in pressure and temperature transmitters. IC Role / Device Role / Timing Role: Low-leakage Zener reference ensuring <1 μA loading on high-impedance sensor outputs. Use Value: Maintains signal integrity with <0.01% gain drift contribution, supporting 16-bit measurement resolution. |
| Low-Power IoT Node Voltage Regulation | Medical Diagnostic Equipment Power Sequencing |
Use Scenario: Regulates auxiliary 7.5 V rail for MCU peripherals and RF transceivers in battery-operated edge nodes. IC Role / Device Role / Timing Role: Low-quiescent shunt regulator enabling sleep-mode current <2 μA. Use Value: Extends coin-cell battery life beyond 5 years by minimizing standby power loss. |
Use Scenario: Generates controlled startup reference for sequencing logic in portable ultrasound and ECG signal chains. IC Role / Device Role / Timing Role: Stable, low-noise voltage source for reset and enable timing thresholds. Use Value: Prevents false resets during brown-out events with <10 ppm/°C long-term stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | Wider VZ tolerance (±5%), higher ZZT (15 Ω), non-AEC-Q101 rated | Suitable for consumer-grade power supplies but not automotive or high-reliability systems | Select only if cost sensitivity outweighs precision and qualification requirements |
| MMSZ5235B | VZ = 7.5 V ±5%, PD = 350 mW, no AEC-Q101 qualification, different SOD-123 footprint | Requires PCB redesign; lacks automotive reliability validation and tight tolerance | Choose only when board space allows SOD-123 and qualification is not mandated |
Compared with BZX84-C7V5 and MMSZ5235B, DDZX7V5C-13 delivers superior voltage accuracy, lower dynamic impedance, and automotive-grade reliability in the same SOT23 footprint - making it the preferred choice for safety-critical and precision analog designs.
Availability
DDZX7V5C-13 is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor signal conditioning, and low-power IoT node voltage regulation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DDZX7V5C-13 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, energy-efficient components for automotive, industrial, and computing markets.
DDZX7V5C-13 belongs to the DDZX series of precision Zener diodes, designed specifically for applications demanding tight voltage tolerance, low leakage, and AEC-Q101 qualification in compact SOT23 packaging.
FAQ
What is the maximum continuous Zener current for DDZX7V5C-13 at +25°C?
The device is rated for 20 mA test current (IZT) and can sustain up to ~40 mA continuously at +25°C ambient when mounted on FR-4 with recommended pad layout - derived from PD = 300 mW and VZ ≈ 7.5 V. Derating is required above +25°C per Fig. 1's 3.6 mW/°C slope.
Is DDZX7V5C-13 suitable for use in automotive under-hood applications?
Yes - it is AEC-Q101 qualified and specified for operation from −65°C to +150°C. Its tight VZ tolerance, low leakage, and stable temperature coefficient make it appropriate for engine control, transmission, and ADAS subsystems where reliability is critical.
Does DDZX7V5C-13 require external current-limiting resistance in shunt regulator configurations?
Yes - like all Zener diodes, it requires a series resistor to limit current to safe levels based on input voltage, load current, and PD rating. For example, with 12 V input and 5 mA load, a 470 Ω resistor limits worst-case Zener current to ~35 mA, staying within thermal limits at +25°C.
How does the SOT23 package affect thermal performance compared to larger packages?
The SOT23 package has RθJA = 417 °C/W on FR-4, meaning a 300 mW dissipation causes ~125°C junction rise above ambient. This necessitates careful PCB copper area allocation and limits use in high-temperature or high-power applications unless derated - unlike TO-236 or SOD-123 variants with lower RθJA.
DDZX7V5C-13 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):
- 7.5 V
- Tolerance:
- ±3%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 6 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
DDZX7V5C-13 FAQ
1.How can I place an order for DDZX7V5C-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZX7V5C-13 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 DDZX7V5C-13 reliable?
The price and inventory of DDZX7V5C-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZX7V5C-13 is usually 5 days.
3.What payment methods are accepted for DDZX7V5C-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZX7V5C-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZX7V5C-13?
DDZX7V5C-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZX7V5C-13 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 DDZX7V5C-13?
For technical support, including DDZX7V5C-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZX7V5C-13 requirements.
6.How does Aetrix verify that DDZX7V5C-13 is sourced from the original manufacturer or authorized distributors?
All DDZX7V5C-13 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 DDZX7V5C-13 meets industry standards.
7.What is the process for return or replacement of DDZX7V5C-13?
All DDZX7V5C-13 units undergo pre-shipment inspection (PSI). If there is an issue with DDZX7V5C-13, 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 DDZX7V5C-13 part is unused and in its original packaging.
Return procedure for DDZX7V5C-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZX7V5C-13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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