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Diodes Incorporated PD3Z284C30-7
- Part No.:
- PD3Z284C30-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C30-7.pdf
- Description:
- DIODE ZENER 30V 500MW POWERDI323
- Quantity:
- Payment:
- Shipping:
Inventory:2,066
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Product details
Overview
PD3Z284C30-7 from Diodes Incorporated is a 30 V, 0.5 W surface-mount Zener diode in PowerDI™323 package, rated for ±2% zener voltage tolerance (28.0–32.0 V at 2 mA), with 40 Ω maximum zener impedance and 0.1 µA maximum reverse leakage at 21.0 V, used for precision voltage regulation and overvoltage protection in automotive power supplies.
For engineers reviewing the PD3Z284C30-7 datasheet, PD3Z284C30-7 pinout, PD3Z284C30-7 application, or PD3Z284C30-7 equivalent, key selection factors include its AEC-Q101 qualification, ultra-small footprint, thermal resistance of 250 °C/W, and compatibility with lead-free reflow processes per J-STD-020D Level 1.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics, while the "green" molding compound and matte tin-plated copper leadframe support RoHS compliance and solderability per MIL-STD-202.
The device exhibits a negative temperature coefficient of –3.5 mV/°C below 6 V and transitions toward zero near 30 V, enabling predictable drift compensation in bias networks. Its 0.005 g mass and PowerDI323 footprint (2.5 × 1.9 mm) support high-density PCB layouts in space-constrained automotive and industrial modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 30 V nominal, 28.0–32.0 V range at IZT = 2 mA - defines regulated output voltage under standard test conditions |
| Power Dissipation (PD) | 500 mW at TA = 25 °C - sets maximum continuous power handling on standard PCB layout |
| Zener Impedance (ZZT) | 40 Ω max at f = 1 kHz - determines AC regulation stability and ripple rejection capability |
| Reverse Leakage (IR) | 0.1 µA max at VR = 21.0 V - ensures minimal quiescent current in standby voltage-sense circuits |
| Thermal Resistance (RθJA) | 250 °C/W - quantifies junction-to-ambient heat transfer efficiency on recommended polyimide PCB pad layout |
| Operating Temperature | –65 to +150 °C - supports deployment in under-hood automotive environments and industrial control enclosures |
| Moisture Sensitivity | Level 1 per J-STD-020D - allows unlimited floor life without dry-pack requirements before reflow |
Pinout & Package
Package: PowerDI™323 - ultra-small surface-mount plastic package (2.50 × 1.90 × 0.13 mm), UL 94V-0 rated, with cathode band marking and matte tin-plated copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to ground or lower-potential rail in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input supply via current-limiting resistor; provides stable 30 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ distribution and repeatable breakdown behavior across production lots |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units and body electronics |
| Lead-free & halogen-free | Meets RoHS Directive 2011/65/EU and JEDEC JS709B "green" compound requirements |
| Ultra-small footprint | 2.5 × 1.9 mm outline enables placement in compact DC-DC feedback loops and sensor bias networks |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: Stabilizing reference voltage for microcontroller ADC reference and sensor excitation circuits in harsh under-hood environments. IC Role / Device Role: Shunt voltage regulator providing precise 30 V bias to op-amps and analog front-ends. Use Value: Maintains <±2% regulation over –40 to +125 °C ambient, supporting accurate 12-bit ADC conversion despite battery voltage fluctuations. | Use Scenario: Clamping and regulating auxiliary supply rails feeding isolated signal conditioners in modular I/O bases. IC Role / Device Role: Overvoltage protection and voltage reference element in 24 V DC-powered analog input stages. Use Value: Limits transient-induced errors with 0.1 µA leakage at 21 V, preserving measurement integrity during ESD events per IEC 61000-4-2. |
| Medical Infusion Pump Power Management | Telecom Remote Radio Unit (RRU) Bias Supply |
Use Scenario: Providing stable bias for motor driver gate-control logic and current-sense amplifiers in battery-backed portable devices. IC Role / Device Role: Low-power Zener reference in dual-supply sequencing circuitry with tight thermal budget. Use Value: Delivers 30 V reference with 250 °C/W RθJA, enabling operation up to +85 °C ambient without derating in sealed enclosures. | Use Scenario: Regulating bias voltage for GaN FET drivers and RF front-end ICs in outdoor base station equipment. IC Role / Device Role: Precision shunt regulator in distributed DC-DC converter feedback paths. Use Value: Achieves 40 Ω ZZT at 1 kHz, minimizing switching noise coupling into sensitive RF signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| D3Z30BF-7 | Same 30 V rating, 500 mW, but in SOD-323 package; lower RθJA (220 °C/W); tighter VZ tolerance (±1%) | Higher power density and improved thermal performance; requires different PCB land pattern | Select when higher reliability margin or tighter regulation is required and board layout permits SOD-323 footprint |
| BZX384-C30,115 | 30 V, 300 mW, SOD-323; ±5% VZ tolerance; RθJA = 300 °C/W; not AEC-Q101 qualified | Limited power handling and wider voltage spread; suitable only for non-automotive consumer-grade designs | Choose for cost-sensitive, non-automotive applications where 300 mW dissipation suffices and AEC-Q101 is not mandated |
Compared with D3Z30BF-7 and BZX384-C30,115, PD3Z284C30-7 offers AEC-Q101 qualification and PowerDI323 mechanical robustness at mid-tier tolerance and thermal performance-ideal for automotive Tier-2 suppliers needing proven reliability without premium pricing.
Availability
PD3Z284C30-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and medical infusion pump power management systems requiring stable component supply and long-term lifecycle support.
Supply support for PD3Z284C30-7 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, headquartered in Plano, Texas, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The PD3ZxxC series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, designed specifically for voltage regulation and transient suppression in automotive power systems and industrial control modules.
FAQ
What is the maximum allowable zener current for continuous operation at 85°C ambient?
At 85°C ambient, the derated power dissipation is 350 mW (per Fig. 1 derating curve), so maximum continuous zener current is 11.7 mA (350 mW ÷ 30 V). This assumes use of the recommended polyimide PCB pad layout per AP02001.
Is PD3Z284C30-7 compatible with lead-free reflow profiles?
Yes - it is qualified for lead-free reflow per J-STD-020D Level 1, with a peak temperature rating of 260°C and no moisture sensitivity concerns, eliminating bake requirements prior to assembly.
Does this Zener diode have a specified capacitance value?
No capacitance specification is provided in DS32239 Rev. 10–3 for PD3Z284C30-7. Figure 4 shows total capacitance trends for other voltages (e.g., ~15 pF at 24 V), but no discrete value is given for 30 V; design margins should assume ≤20 pF.
Why is PD3Z284C30-7 marked as "Not Recommended for New Designs"?
Diodes Incorporated recommends migrating to the newer D3ZxxBF series due to enhanced thermal performance, tighter tolerances, and updated process controls - though PD3Z284C30-7 remains fully supported for legacy production and repair programs.
PD3Z284C30-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±6.67%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 21 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 323
PD3Z284C30-7 FAQ
1.How can I place an order for PD3Z284C30-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C30-7 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 PD3Z284C30-7 reliable?
The price and inventory of PD3Z284C30-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C30-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C30-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C30-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C30-7?
PD3Z284C30-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C30-7 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 PD3Z284C30-7?
For technical support, including PD3Z284C30-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C30-7 requirements.
6.How does Aetrix verify that PD3Z284C30-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C30-7 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 PD3Z284C30-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C30-7?
All PD3Z284C30-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C30-7, 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 PD3Z284C30-7 part is unused and in its original packaging.
Return procedure for PD3Z284C30-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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