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Diodes Incorporated PD3Z284C3V3-7
- Part No.:
- PD3Z284C3V3-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C3V3-7.pdf
- Description:
- DIODE ZENER 3.3V 500MW PWRDI323
- Quantity:
- Payment:
- Shipping:
Inventory:2,875
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Product details
Overview
PD3Z284C3V3-7 from Diodes Incorporated is a 3.3 V, 500 mW surface-mount Zener diode in PowerDI™323 package, with ±0.2 V tolerance at 5 mA test current, 95 Ω maximum Zener impedance, and AEC-Q101 qualification for automotive-grade reliability. It provides precise voltage regulation in low-power biasing and reference circuits.
For engineers reviewing the PD3Z284C3V3-7 datasheet, PD3Z284C3V3-7 pinout, PD3Z284C3V3-7 application, or PD3Z284C3V3-7 equivalent, key selection criteria include nominal Zener voltage (3.3 V), power rating (500 mW), thermal resistance (250 °C/W), and compliance with AEC-Q101 for harsh-environment deployment.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its planar die construction ensures consistent breakdown characteristics and low leakage, with a temperature coefficient of –3.5 mV/°C near 3.3 V.
The device is rated for operation from –65 °C to +150 °C and exhibits 1.0 µA maximum reverse current at 1.0 V, supporting low-quiescent-current designs. Its ultra-small PowerDI323 footprint enables high-density PCB layouts while maintaining thermal performance via optimized pad layout per AP02001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V nominal, 3.1–3.5 V range at 5 mA - ensures tight regulation for 3.3 V rail referencing |
| Power Dissipation (PD) | 500 mW - supports continuous operation in compact, unheatsinked layouts |
| Zener Impedance (ZZT) | ≤95 Ω at 5 mA - minimizes output voltage variation under dynamic load changes |
| Reverse Current (IR) | ≤5 µA at 1.0 V - enables low-leakage bias networks in battery-powered systems |
| Thermal Resistance (RθJA) | 250 °C/W - defines junction-to-ambient rise per watt; requires adherence to AP02001 pad layout |
| Temperature Coefficient | –3.5 mV/°C - predicts predictable VZ drift over temperature for calibration-aware designs |
| AEC-Q101 Qualified | Yes - validated for automotive electronics requiring high-reliability discrete components |
Pinout & Package
Package: PowerDI™323 - ultra-small surface-mount plastic package (2.50 × 1.90 × 0.13 mm), UL 94V-0 rated, matte tin-plated copper leadframe, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node in shunt regulation configuration |
| Cathode | Reverse-biased Zener terminal / regulated output node | Connected to input supply through current-limiting resistor; delivers stable 3.3 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener breakdown voltage and low parameter spread across production lots |
| PowerDI™323 package | Reduces board space by >50% vs. SOD-123 while maintaining thermal capability via optimized thermal pad design |
| AEC-Q101 qualification | Validates robustness for automotive infotainment, body control, and sensor interface applications |
| Lead-free & RoHS-compliant | Meets global environmental directives without compromising solderability or long-term reliability |
Applications
| Automotive Sensor Biasing | Industrial PLC Input Protection |
|---|---|
Use Scenario: Providing stable 3.3 V reference for analog front-end amplifiers in engine coolant temperature sensors. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision bias point for op-amp input stages. Use Value: Maintains signal integrity across –40 °C to +125 °C ambient, leveraging AEC-Q101 qualification and low tempco. | Use Scenario: Clamping transient overvoltage on 24 V digital input channels of programmable logic controllers. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as low-energy crowbar to limit input voltage to safe logic levels. Use Value: Absorbs short-duration surges up to 500 mW without degradation, enabling robust field I/O protection. |
| USB-C Power Delivery Reference | Medical Wearable Battery Monitoring |
Use Scenario: Generating accurate 3.3 V reference for ADC measurement of CC line voltage in USB-C PD controllers. IC Role / Device Role / Timing Role: Precision voltage reference source for analog-to-digital conversion of bus signaling voltages. Use Value: Tight 3.1–3.5 V tolerance and low 95 Ω impedance ensure <0.5% reference error in PD negotiation algorithms. | Use Scenario: Regulating bias voltage for low-power fuel gauge ICs in rechargeable lithium-polymer wearable devices. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA @ 1 V) shunt regulator supplying stable reference to battery monitoring circuitry. Use Value: Extends standby battery life by minimizing quiescent current while maintaining 3.3 V accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| D3Z3V3BF-7 | Same 3.3 V rating, 500 mW, but in SOD-323 package; slightly higher ZZT (110 Ω) | Larger footprint; less suitable for ultra-dense automotive modules | Prefer when legacy SOD-323 layout compatibility is required over space savings |
| BZX384-C3V3,115 | 3.3 V, 300 mW, SOD-323; lower power rating and higher ZZT (150 Ω) | Not AEC-Q101 qualified; limited to commercial-grade applications | Select only for cost-sensitive non-automotive designs where 500 mW headroom is unnecessary |
Compared with D3Z3V3BF-7 and BZX384-C3V3,115, PD3Z284C3V3-7 offers superior thermal performance (250 °C/W vs. ≥300 °C/W), tighter voltage tolerance, and automotive qualification-making it optimal for space-constrained, high-reliability systems.
Availability
PD3Z284C3V3-7 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial PLC input protection, and USB-C power delivery reference circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for PD3Z284C3V3-7 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, energy-efficient components for automotive, industrial, and consumer markets.
The PD3ZxxC series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage reference and transient clamping in automotive electronics and harsh-environment industrial controls.
FAQ
What is the maximum reverse current specification for PD3Z284C3V3-7 at 1.0 V?
The maximum reverse current (IR) is 5 µA at VR = 1.0 V and TA = +25 °C, as specified in the Electrical Characteristics table on page 2 of DS32239 Rev. 10–3. This low leakage supports energy-efficient bias networks in always-on subsystems.
Is PD3Z284C3V3-7 suitable for reflow soldering per J-STD-020?
Yes - the device is qualified to Moisture Sensitivity Level 1 per J-STD-020D and features matte tin-plated terminals compatible with standard Pb-free reflow profiles. No pre-baking is required prior to assembly.
Does PD3Z284C3V3-7 have a defined temperature coefficient, and how does it affect regulation accuracy?
Yes - its temperature coefficient is –3.5 mV/°C at IZT = 5 mA. Over a –40 °C to +125 °C range, this results in approximately ±0.58 V total drift, which must be accounted for in high-accuracy reference designs using external compensation or calibration.
Why is PD3Z284C3V3-7 marked as "NOT RECOMMENDED FOR NEW DESIGNS" in the datasheet?
Diodes Incorporated recommends migrating to the newer D3ZxxBF series due to enhanced process control, tighter parametric distribution, and improved long-term stability. PD3Z284C3V3-7 remains fully supported for existing designs and legacy production, with no obsolescence timeline published.
PD3Z284C3V3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±6.06%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 323
PD3Z284C3V3-7 FAQ
1.How can I place an order for PD3Z284C3V3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C3V3-7 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 PD3Z284C3V3-7 reliable?
The price and inventory of PD3Z284C3V3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C3V3-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C3V3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C3V3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C3V3-7?
PD3Z284C3V3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C3V3-7 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 PD3Z284C3V3-7?
For technical support, including PD3Z284C3V3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C3V3-7 requirements.
6.How does Aetrix verify that PD3Z284C3V3-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C3V3-7 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 PD3Z284C3V3-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C3V3-7?
All PD3Z284C3V3-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C3V3-7, 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 PD3Z284C3V3-7 part is unused and in its original packaging.
Return procedure for PD3Z284C3V3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PD3Z284C3V3-7 Tags
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