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Diodes Incorporated PD3Z284C5V1-7
- Part No.:
- PD3Z284C5V1-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C5V1-7.pdf
- Description:
- DIODE ZENER 5.1V 500MW PWRDI323
- Quantity:
- Payment:
- Shipping:
Inventory:40,734
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Product details
Overview
PD3Z284C5V1-7 from Diodes Incorporated is a 0.5W surface-mount Zener diode with nominal 5.1V breakdown voltage (4.8–5.4V range at 5mA), 60Ω maximum Zener impedance, and AEC-Q101 qualification for automotive-grade reliability. It uses PowerDI™323 ultra-small plastic package, features matte tin-plated copper leadframe, and serves as precision voltage reference or overvoltage clamp in power supply feedback loops.
For engineers reviewing the PD3Z284C5V1-7 datasheet, PD3Z284C5V1-7 pinout, PD3Z284C5V1-7 application, or PD3Z284C5V1-7 equivalent, key selection criteria include Zener voltage tolerance (±5.9%), low dynamic impedance (60Ω @ 5mA), thermal resistance (250°C/W), and compliance with automotive reliability standards.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to regulate or clamp voltage at 5.1V with ±5.9% initial tolerance and -2.7mV/°C temperature coefficient. Its planar die construction ensures stable performance under transient conditions and supports pulse operation up to 500mW at 25°C ambient.
The device exhibits low leakage (<2µA @ 2V reverse bias) and controlled capacitance (~50pF typical at 1MHz), making it suitable for DC voltage reference and low-frequency protection circuits where stability and minimal parasitic loading are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1V nominal, 4.8–5.4V range at 5mA test current - defines precise clamping threshold for feedback or protection |
| Power Dissipation (PD) | 500mW at 25°C ambient - sets maximum continuous power handling before thermal derating |
| Zener Impedance (ZZT) | 60Ω max @ 5mA - determines regulation accuracy under load variation |
| Reverse Leakage (IR) | 2µA max @ 2V - ensures minimal standby current in high-impedance bias networks |
| Temp. Coefficient (TC) | -2.7mV/°C - quantifies voltage drift across operating temperature range (-65°C to +150°C) |
| Package Thermal Resistance (RθJA) | 250°C/W - defines junction-to-ambient temperature rise per watt dissipated |
| Qualification Standard | AEC-Q101 qualified - confirms suitability for automotive electronics applications requiring high reliability |
Pinout & Package
Package: PowerDI™323 - ultra-small surface-mount plastic case (2.5 × 1.9 × 0.13 mm), UL 94V-0 rated, moisture sensitivity level 1, cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse bias reference node | Connected to lower potential side in Zener regulation; forms reference point for voltage sensing |
| Cathode | Breakdown voltage output terminal / Clamping node | Provides regulated 5.1V output when reverse biased; connects to feedback node or protected line |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and long-term parametric stability under thermal cycling |
| Ultra-small PowerDI™323 package | Reduces PCB footprint by >40% vs. SOD-123 while maintaining 0.5W rating and thermal performance |
| AEC-Q101 qualification | Validates robustness for automotive under-hood and infotainment systems with extended temperature and life testing |
| Lead-free, green compound | Meets RoHS Directive 2011/65/EU and eliminates bromine/antimony - supports environmental compliance without performance trade-off |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Voltage reference for microcontroller ADC reference divider in BCM power management circuitry. IC Role / Device Role / Timing Role: Provides stable 5.1V reference point for precision analog-to-digital conversion of sensor signals. Use Value: Maintains <±1% reference accuracy over -40°C to +125°C due to AEC-Q101 validation and low TC (-2.7mV/°C). | Use Scenario: Overvoltage clamp on 0–10V analog input channel of programmable logic controller. IC Role / Device Role / Timing Role: Limits input voltage to safe levels during ESD transients or wiring faults. Use Value: Responds within nanoseconds to clamp spikes above 5.4V while drawing <2µA leakage at normal operating voltage. |
| Consumer Smart Meter Power Supply Feedback | Medical Diagnostic Equipment Reference Divider |
Use Scenario: Secondary-side voltage regulation in isolated flyback converter powering meter MCU and display. IC Role / Device Role / Timing Role: Sets feedback threshold for optocoupler-driven regulation loop. Use Value: Enables tight output regulation (±5.9% VZ tolerance) with 60Ω dynamic impedance minimizing load-induced error. | Use Scenario: Precision voltage divider element in calibration circuit for ECG front-end amplifier gain setting. IC Role / Device Role / Timing Role: Supplies stable bias point for resistor network defining signal path gain. Use Value: Delivers <0.5% long-term drift due to planar die construction and green molding compound's low outgassing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| D3Z5V1BF-7 | Same 5.1V rating, 0.5W, PowerDI™323, but newer generation with tighter 5% tolerance (4.85–5.36V) and lower ZZT (40Ω) | Preferred for new designs requiring improved regulation accuracy and lower impedance | Select D3Z5V1BF-7 if upgrading from legacy design or targeting higher precision feedback |
| BZX384-B5V1,115 | SOD-323 package, same 5.1V/0.3W rating, 90Ω ZZT, no AEC-Q101 qualification | Limited to commercial-grade applications; unsuitable for automotive or industrial environments | Choose only for cost-sensitive consumer products with non-automotive temperature requirements |
Compared with PD3Z284C5V1-7, D3Z5V1BF-7 offers tighter voltage tolerance and lower impedance for enhanced regulation, while BZX384-B5V1,115 provides SOD-323 compatibility at reduced power and reliability - making the original part optimal for AEC-Q101-compliant legacy systems needing proven field performance.
Availability
PD3Z284C5V1-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog input protection, and smart meter power supply feedback requiring stable component supply and long-lifecycle support.
Supply support for PD3Z284C5V1-7 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, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The PD3ZxxC series belongs to Diodes' automotive-qualified Zener diode product line, designed specifically for voltage regulation and transient protection in harsh-environment applications including engine control units and ADAS subsystems.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The PD3Z284C5V1-7 has a nominal Zener voltage of 5.1V with a guaranteed range of 4.8V to 5.4V at 5mA test current. Its absolute maximum reverse voltage is defined by its breakdown characteristic - it begins regulating at ~4.8V and maintains stable clamping up to its 500mW power limit. Exceeding 5.4V continuously risks thermal runaway unless current is strictly limited by external series resistance.
Is this device suitable for use in automotive applications?
Yes - PD3Z284C5V1-7 is explicitly qualified to AEC-Q101 standards, confirming its reliability for automotive applications including under-hood and cabin electronics. It operates across -65°C to +150°C, features matte tin-plated terminals for solderability, and meets J-STD-020D moisture sensitivity Level 1, supporting reflow assembly in automotive production lines.
How does the PowerDI™323 package compare to SOD-123 in thermal performance?
Despite its smaller footprint (2.5 × 1.9 mm vs. SOD-123's 3.7 × 1.6 mm), the PowerDI™323 achieves comparable thermal resistance (250°C/W) due to optimized copper leadframe design and direct thermal path from die to PCB pads. Its lower profile also improves mechanical robustness in vibration-prone automotive environments.
Why is this part marked "NOT RECOMMENDED FOR NEW DESIGNS"?
Diodes Incorporated issued this notice because the newer D3ZxxBF series offers tighter voltage tolerance (±5% vs. ±5.9%), lower Zener impedance (40Ω vs. 60Ω), and identical PowerDI™323 packaging - providing improved performance without layout changes. PD3Z284C5V1-7 remains fully supported for existing designs and legacy production, with no obsolescence timeline announced.
PD3Z284C5V1-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 323
PD3Z284C5V1-7 FAQ
1.How can I place an order for PD3Z284C5V1-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C5V1-7 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 PD3Z284C5V1-7 reliable?
The price and inventory of PD3Z284C5V1-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C5V1-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C5V1-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C5V1-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C5V1-7?
PD3Z284C5V1-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C5V1-7 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 PD3Z284C5V1-7?
For technical support, including PD3Z284C5V1-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C5V1-7 requirements.
6.How does Aetrix verify that PD3Z284C5V1-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C5V1-7 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 PD3Z284C5V1-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C5V1-7?
All PD3Z284C5V1-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C5V1-7, 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 PD3Z284C5V1-7 part is unused and in its original packaging.
Return procedure for PD3Z284C5V1-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PD3Z284C5V1-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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