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Diodes Incorporated PD3Z284C24-7
- Part No.:
- PD3Z284C24-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C24-7.pdf
- Description:
- DIODE ZENER 24V 500MW POWERDI323
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
PD3Z284C24-7 from Diodes Incorporated is a 24 V, 0.5 W surface-mount Zener diode in PowerDI323 (Type B) package, rated for 5 mA test current with 22.8–25.6 V zener voltage range, 30 Ω max zener impedance at 5 mA, and -3.5 to +22.0 mV/°C temperature coefficient. It delivers precision voltage regulation in compact automotive and industrial power supply rails.
For engineers reviewing the PD3Z284C24-7 datasheet, PD3Z284C24-7 pinout, PD3Z284C24-7 application, or PD3Z284C24-7 equivalent, key selection criteria include its AEC-Q101 qualification, 0.005 g ultra-lightweight construction, 250 °C/W thermal resistance, and 16.8 V minimum zener voltage at 1 mA reverse current - critical for low-power biasing and overvoltage clamping in space-constrained designs.
Technical Context
This Zener diode uses planar die construction for stable breakdown characteristics and low leakage, operating across -65 to +150 °C with 0.1 µA maximum reverse current at 16.8 V. Its PowerDI323 (Type B) package enables high-density PCB layouts while maintaining 500 mW power dissipation under defined thermal conditions.
The device exhibits a negative-to-positive temperature coefficient transition near 5–6 V; at 24 V, it shows +18.4 to +22.0 mV/°C drift, making it suitable for temperature-compensated reference circuits when paired with complementary devices. Zener impedance remains ≤30 Ω up to 5 mA, ensuring tight regulation under dynamic load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage @ 5 mA | 24 V nominal, 22.8–25.6 V range - defines stable regulation point for feedback networks |
| Power Dissipation | 500 mW - supports continuous operation in thermally constrained SMT layouts |
| Zener Impedance | ≤30 Ω @ 5 mA - ensures minimal output voltage deviation during current fluctuations |
| Reverse Current | ≤0.1 µA @ 16.8 V - enables low-leakage biasing in high-impedance sensing nodes |
| Temp Coefficient | +18.4 to +22.0 mV/°C - quantifies voltage drift per degree for thermal error budgeting |
| Thermal Resistance | 250 °C/W - determines junction temperature rise above ambient on standard FR-4 PCB |
| Package | PowerDI323 (Type B) - 2.5 × 1.25 mm footprint with cathode band polarity marking |
Pinout & Package
PowerDI323 (Type B) is a 2-terminal surface-mount package with anode and cathode leads exposed on opposite ends of the molded plastic body; polarity is indicated by a cathode band on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common reference node in shunt regulator | Connected to circuit ground or lower-potential rail for voltage clamping |
| Cathode | Current exit terminal in forward bias; regulated output node in Zener mode | Connected to input rail to maintain fixed voltage drop relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling and HTRB |
| Green compound packaging | Halogen- and antimony-free molding compound meeting <900 ppm Br/Cl, <1000 ppm Sb |
| Ultra-small footprint | 2.5 × 1.25 mm outline with 0.005 g mass - ideal for wearables and dense power modules |
| Matte tin annealed terminals | Solderable per MIL-STD-202 Method 208 - ensures robust reflow joint integrity |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating reference voltage for microcontroller ADC inputs in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 24 V-derived bias for analog front-end circuitry. Use Value: Maintains ±1.2% regulation accuracy over -40 to +125 °C, enabling consistent sensor measurement across vehicle lifetime. |
Use Scenario: Clamping transient overvoltage on 24 V fieldbus lines in factory automation I/O modules. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting RS-485 transceivers from ESD and inductive spikes. Use Value: Responds within nanoseconds to >30 V surges while dissipating ≤500 mW, preventing latch-up without external TVS. |
| Medical Portable Diagnostic Device | Smart Energy Meter Power Supply |
Use Scenario: Generating precise bias for photodiode amplifier stages in handheld pulse oximeters. IC Role / Device Role / Timing Role: Low-noise voltage reference stabilizing op-amp offset in high-gain analog signal chains. Use Value: Delivers <0.1 µA leakage at 16.8 V, minimizing input bias current errors in picoamp-level current measurements. |
Use Scenario: Providing regulated auxiliary supply for metrology ICs in DIN-rail energy meters. IC Role / Device Role / Timing Role: Secondary shunt regulator trimming 24 V DC-DC output to 22.8–25.6 V tolerance band. Use Value: Achieves ±1.3% initial tolerance and <±0.02%/°C drift, reducing calibration overhead in production test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-C24,115 | Same 24 V nominal, but 300 mW rating and SOD323 package; 40 Ω Zzt vs. 30 Ω | Limited to lower-power biasing due to reduced dissipation; not AEC-Q101 qualified | Prefer for cost-sensitive consumer applications where automotive qualification is unnecessary |
| MMSZ5249B-TP | 24 V nominal, 500 mW, SOD-123 package; 35 Ω Zzt, wider 22.8–25.6 V tolerance | Higher thermal resistance (350 °C/W) limits use in high-ambient environments | Select when existing SOD-123 footprint compatibility is required and thermal margin exceeds 25 °C |
Compared with BZX384-C24,115 and MMSZ5249B-TP, PD3Z284C24-7 offers superior thermal performance (250 vs. ≥350 °C/W), AEC-Q101 compliance for automotive deployment, and tighter zener impedance - making it optimal for high-reliability, thermally demanding shunt regulation tasks.
Availability
PD3Z284C24-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, portable medical diagnostics, and smart energy metering requiring stable component supply and long-term lifecycle support.
Supply support for PD3Z284C24-7 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 components for automotive, industrial, and computing markets.
PD3Z284C24-7 belongs to the PD3Z284C series of AEC-Q101-qualified Zener diodes designed specifically for precision voltage regulation and transient suppression in harsh-environment power systems.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The PD3Z284C24-7 has a nominal zener voltage of 24 V with a guaranteed range of 22.8–25.6 V at 5 mA test current. Its absolute maximum non-destructive reverse voltage is not specified separately; operation beyond 25.6 V risks exceeding power dissipation limits unless current is strictly limited to prevent thermal runaway.
Is this device suitable for use in automotive applications?
Yes - PD3Z284C24-7 is explicitly qualified to AEC-Q101 standards, including stress tests for temperature cycling, high-temperature reverse bias, and humidity testing. Its -65 to +150 °C operating range and green RoHS-compliant construction meet automotive electronics requirements.
How does the PowerDI323 (Type B) package compare to standard SOD-323 in thermal performance?
PowerDI323 (Type B) provides 250 °C/W junction-to-ambient thermal resistance versus ~350 °C/W for SOD-323, due to its larger copper leadframe and optimized pad layout. This allows 500 mW dissipation at lower junction temperatures, improving long-term reliability in enclosed enclosures.
Can this Zener diode be used in parallel for higher power handling?
No - Zener diodes exhibit manufacturing variations in breakdown voltage that cause current imbalance when paralleled. Even small mismatches (e.g., ±0.2 V) result in one device conducting most of the current, risking thermal failure. Use a single higher-power device or active regulation instead.
PD3Z284C24-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 16.8 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
PD3Z284C24-7 FAQ
1.How can I place an order for PD3Z284C24-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C24-7 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 PD3Z284C24-7 reliable?
The price and inventory of PD3Z284C24-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C24-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C24-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C24-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C24-7?
PD3Z284C24-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C24-7 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 PD3Z284C24-7?
For technical support, including PD3Z284C24-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C24-7 requirements.
6.How does Aetrix verify that PD3Z284C24-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C24-7 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 PD3Z284C24-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C24-7?
All PD3Z284C24-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C24-7, 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 PD3Z284C24-7 part is unused and in its original packaging.
Return procedure for PD3Z284C24-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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