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Diodes Incorporated PD3Z284C5V1Q-7
- Part No.:
- PD3Z284C5V1Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C5V1Q-7.pdf
- Description:
- DIODE ZENER 5.1V 500MW PWRDI323
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
PD3Z284C5V1Q-7 from Diodes Incorporated is a 0.5W surface-mount Zener diode in PowerDI323 (Type B) package, rated for 5.1V nominal zener voltage at 5mA test current, with ±0.3V tolerance (4.8–5.4V), 60Ω maximum zener impedance at 5mA, and AEC-Q101 qualification for automotive power rail regulation and ESD protection circuits.
For engineers reviewing the PD3Z284C5V1Q-7 datasheet, PD3Z284C5V1Q-7 pinout, PD3Z284C5V1Q-7 application, or PD3Z284C5V1Q-7 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (250°C/W), low leakage (<2µA @ 2V), temperature coefficient (−2.7 to +1.2 mV/°C), and IATF 16949-certified manufacturing traceability.
Technical Context
This Zener diode uses planar die construction for stable voltage reference performance under transient load conditions. It operates across −65°C to +150°C, with 500mW power dissipation derated linearly above +25°C ambient per Fig. 1 - delivering ~300mW at +85°C.
The device exhibits low capacitance (~100pF at VR = 1V, f = 1MHz) and reverse leakage ≤2µA at 2V, enabling use in precision biasing and noise-sensitive analog monitoring nodes where low parasitic capacitance and tight voltage regulation are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V nominal at IZT = 5 mA; min/max 4.8–5.4 V ensures stable 5V rail clamping in automotive microcontroller supply monitoring. |
| Zener Impedance (ZZT) | 60 Ω max at 5 mA; low dynamic resistance maintains regulation accuracy during fast load transients. |
| Power Dissipation (PD) | 500 mW at TA = 25°C; derates to zero at ~150°C, supporting compact PCB layouts without forced cooling. |
| Thermal Resistance (RθJA) | 250 °C/W on standard polyimide board; defines junction-to-ambient rise per watt, critical for thermal margin in sealed enclosures. |
| Reverse Leakage (IR) | ≤2 µA at VR = 2 V; enables low-power standby mode integrity in battery-backed systems. |
| Temp. Coefficient (TCVZ) | −2.7 to +1.2 mV/°C; negative coefficient dominates near 5.1V, allowing predictable drift compensation in sensor bias networks. |
Pinout & Package
Package: PowerDI323 (Type B) - ultra-small surface-mount plastic package (2.50 × 1.25 × 0.30 mm), matte tin-plated copper leadframe, cathode band polarity marking, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or low-impedance return path; establishes reference node for regulated voltage output. |
| Cathode | Zener breakdown terminal / Voltage clamp input | Connected to protected node (e.g., MCU VDD line); conducts when voltage exceeds 5.1V, shunting excess current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables repeatable zener voltage distribution and long-term stability under thermal cycling (−65°C to +150°C). |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics applications requiring PPAP documentation and change control. |
| PowerDI323 (Type B) footprint | 0.005 g weight and 2.5 × 1.25 mm outline allow high-density placement in space-constrained ADAS camera modules and infotainment ECUs. |
| Halogen- and antimony-free "Green" compound | UL 94V-0 rated molding material with <900 ppm Br/Cl and <1000 ppm Sb meets global environmental compliance mandates. |
Applications
| Automotive Engine Control Unit (ECU) Power Monitoring | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Clamping 5V reference rail against load dump spikes in 12V automotive systems. IC Role / Device Role / Timing Role: Zener voltage clamp protecting ADC reference inputs and microcontroller VDD pins. Use Value: Maintains 5.1V regulation with ≤60Ω impedance, limiting overvoltage to <5.4V even under 100mA surge currents. | Use Scenario: Safeguarding 4–20mA loop receiver circuitry from field-wiring induced transients. IC Role / Device Role / Timing Role: Reverse-biased shunt regulator absorbing >2kV ESD events per IEC 61000-4-2 Level 4. Use Value: Low 2µA leakage at 2V preserves signal integrity in high-impedance current-sense paths. |
| Consumer IoT Sensor Bias Network | Medical Wearable Battery Voltage Supervisor |
Use Scenario: Providing stable 5.1V bias for MEMS accelerometer and temperature sensor front-ends. IC Role / Device Role / Timing Role: Precision voltage reference source with −2.7 mV/°C tempco enabling on-chip calibration compensation. Use Value: Tight 4.8–5.4V tolerance ensures ADC full-scale accuracy remains within ±0.5% over temperature. | Use Scenario: Monitoring Li-ion cell voltage during charging cycles in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-power zener reference in comparator-based undervoltage lockout (UVLO) circuit. Use Value: 500mW rating supports brief 100mA fault-current handling while 0.005g mass minimizes mechanical stress on flexible PCBs. |
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 |
|---|---|---|---|
| BZX384-B5V1,115 | Same 5.1V nominal, but SOD-323 package (RθJA = 350°C/W), higher ZZT (90Ω), non-AEC-Q101. | Limited to commercial-grade consumer products; unsuitable for automotive thermal or reliability requirements. | Select when cost is primary and AEC-Q101/PPAP not required. |
| MMSZ5222BS-7-F | 5.1V nominal, SOD-123 package, RθJA = 300°C/W, ZZT = 60Ω, AEC-Q101 qualified but no IATF 16949 facility certification stated. | Acceptable for industrial control, but lacks documented PPAP capability and automotive change control process. | Select when AEC-Q101 suffices but full automotive production traceability is not mandated. |
Compared with BZX384-B5V1,115 and MMSZ5222BS-7-F, PD3Z284C5V1Q-7 delivers superior thermal performance (250°C/W), guaranteed PPAP support, and IATF 16949 manufacturing - making it the only choice for safety-critical automotive ECU voltage supervision where supply chain continuity and audit readiness are mandatory.
Availability
PD3Z284C5V1Q-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and medical wearable battery management systems requiring stable component supply, AEC-Q101 compliance, and traceable sourcing.
Supply support for PD3Z284C5V1Q-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 PD3Z284 series belongs to Diodes' AEC-Q101-qualified Zener diode product line, engineered specifically for automotive power rail stabilization, ESD protection, and precision voltage reference in harsh-environment electronic control modules.
FAQ
What is the maximum reverse leakage current for PD3Z284C5V1Q-7 at 2V?
The maximum reverse leakage current is 2 µA at VR = 2 V and TA = +25°C, as specified in the Electrical Characteristics table. This value remains ≤5 µA up to +125°C per thermal derating curves, ensuring reliable operation in battery-powered sensor nodes where standby current must stay below 10 µA.
Is PD3Z284C5V1Q-7 compatible with lead-free reflow soldering profiles?
Yes - the device uses matte tin annealed terminals over copper leadframe and is rated for peak reflow temperatures up to 260°C per JEDEC J-STD-020, with moisture sensitivity level 1 (unlimited floor life at ≤30°C/60% RH), fully compliant with IPC-J-STD-020D and RoHS 3 (2015/863/EU).
Does PD3Z284C5V1Q-7 have a specified total capacitance value?
Yes - total capacitance is 100 pF typical at VR = 1 V and f = 1 MHz, as shown in Figure 4 of DS43436. This low capacitance supports use in high-frequency analog sensing circuits without introducing phase shift or signal attenuation in 100kHz–1MHz bandwidth applications.
Can PD3Z284C5V1Q-7 be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging when paralleled. The datasheet does not recommend parallel operation; instead, select a single higher-power Zener (e.g., PD3Z284C5V1Q-13 with 1W rating) or use an active shunt regulator for >500mW requirements.
PD3Z284C5V1Q-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):
- 5.1 V
- Tolerance:
- ±5.88%
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 323
PD3Z284C5V1Q-7 FAQ
1.How can I place an order for PD3Z284C5V1Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C5V1Q-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 PD3Z284C5V1Q-7 reliable?
The price and inventory of PD3Z284C5V1Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C5V1Q-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C5V1Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C5V1Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C5V1Q-7?
PD3Z284C5V1Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C5V1Q-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 PD3Z284C5V1Q-7?
For technical support, including PD3Z284C5V1Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C5V1Q-7 requirements.
6.How does Aetrix verify that PD3Z284C5V1Q-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C5V1Q-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 PD3Z284C5V1Q-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C5V1Q-7?
All PD3Z284C5V1Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C5V1Q-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 PD3Z284C5V1Q-7 part is unused and in its original packaging.
Return procedure for PD3Z284C5V1Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PD3Z284C5V1Q-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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MMSZ5231B-7-F
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