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Diodes Incorporated PD3Z284C16-7
- Part No.:
- PD3Z284C16-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C16-7.pdf
- Description:
- DIODE ZENER 16V 500MW POWERDI323
- Quantity:
- Payment:
- Shipping:
Inventory:18,008
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Product details
Overview
PD3Z284C16-7 from Diodes Incorporated is a 16 V, 500 mW surface-mount Zener diode in PowerDI™323 package, featuring 15.3–17.1 V zener voltage range at 5 mA test current, 20 Ω maximum zener impedance, and AEC-Q101 qualification for automotive-grade reliability. It provides precision voltage regulation in compact power management circuits.
For engineers reviewing the PD3Z284C16-7 datasheet, PD3Z284C16-7 pinout, PD3Z284C16-7 application, or PD3Z284C16-7 equivalent, key selection criteria include zener voltage tolerance (±6.25%), thermal resistance (250 °C/W), reverse leakage (≤0.1 µA at 11.2 V), and RoHS-compliant matte tin terminations.
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 PowerDI323 package enables high thermal efficiency on standard PCB layouts.
The device exhibits a negative temperature coefficient of –3.5 mV/°C below 6 V and transitions to positive above 6 V; for PD3Z284C16-7, the coefficient is +10.4 mV/°C (min) to +14.0 mV/°C (max), enabling predictable drift compensation in voltage reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V nominal, 15.3–17.1 V range at IZT = 5 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 500 mW at TA = 25°C - sets maximum continuous DC power handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | 20 Ω max at 1 kHz - determines AC regulation stiffness and ripple rejection capability |
| Reverse Leakage (IR) | ≤0.1 µA at VR = 11.2 V - ensures minimal quiescent current in low-power standby circuits |
| Thermal Resistance (RθJA) | 250 °C/W - quantifies junction-to-ambient heat transfer efficiency with recommended pad layout |
| Temperature Coefficient | +10.4 to +14.0 mV/°C - enables predictable voltage drift compensation over –65°C to +150°C operating range |
| Package | PowerDI™323 - ultra-small 2.5 × 1.9 mm outline with cathode band polarity marking |
Pinout & Package
PowerDI™323 is a two-terminal surface-mount package with cathode identified by a band on the top surface. The device has no internal leads; terminals are formed by the copper leadframe with matte tin annealed finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; forms reference return path during regulation |
| Cathode | Zener breakdown terminal / voltage regulation input | Receives unregulated input; maintains fixed voltage drop across anode when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring high-reliability discrete components |
| Green molding compound | Halogen-free (no Br, Sb) UL 94V-0 rated plastic housing - meets environmental compliance and flame-safety requirements |
| Moisture sensitivity Level 1 | No floor-life limitation before reflow - eliminates baking requirement and simplifies SMT assembly logistics |
| Planar die construction | Ensures tight VZ distribution and repeatable ZZT performance across production lots |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for microcontroller ADC biasing and CAN transceiver supply monitoring in BCMs. IC Role / Device Role / Timing Role: Zener diode providing stable 16 V reference for analog front-end calibration and overvoltage detection thresholds. Use Value: Enables accurate 12 V battery rail monitoring with ±0.5 V tolerance over temperature, supporting ISO 16750-2 load-dump immunity compliance. | Use Scenario: Precision reference for 4–20 mA loop-powered pressure sensor transmitter ICs. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed bias point for op-amp feedback networks and DAC reference dividers. Use Value: Maintains <10 ppm/°C effective reference stability via matched TC tracking with external resistors, reducing calibration drift in Class I, Div 2 hazardous locations. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Power Sequencing |
Use Scenario: Secondary-side voltage sensing in flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Zener clamping element in optocoupler feedback path to regulate 5 V/9 V/15 V output rails. Use Value: Delivers <±1% output regulation accuracy across 10–100% load with 20 Ω dynamic impedance limiting transient error propagation. | Use Scenario: Power-on reset threshold generation in portable ultrasound imaging subsystems. IC Role / Device Role / Timing Role: Voltage supervisor input reference for sequenced 3.3 V, 5 V, and 12 V rail enable logic. Use Value: Guarantees deterministic power-up timing with <1 µA leakage at 11.2 V, preventing false resets during slow-ramp medical power supplies. |
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 |
|---|---|---|---|
| D3Z16BF-7 | Same 16 V rating, 500 mW, but in SOD-323 package; lower RθJA (220 °C/W); tighter VZ tolerance (±5%) | Better thermal performance in dense layouts; preferred for new designs per Diodes Inc. recommendation | Select for higher-reliability production where long-term availability and improved thermal margin are critical |
| BZX384-C16,115 | SOD-323 package; 16 V, 300 mW; higher ZZT (40 Ω); no AEC-Q101 qualification | Limited to commercial-grade applications; unsuitable for automotive or industrial environments | Accept only for cost-sensitive consumer prototypes where qualification and power derating are not required |
Compared with PD3Z284C16-7, D3Z16BF-7 offers superior thermal performance and tighter voltage tolerance in the same footprint, while BZX384-C16,115 sacrifices reliability and power rating for lower unit cost-making it viable only in non-critical, low-volume applications.
Availability
PD3Z284C16-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor transmitters, and medical diagnostic equipment requiring stable component supply and legacy design support.
Supply support for PD3Z284C16-7 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, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The PD3ZxxC series targets cost-effective, AEC-Q101-qualified Zener regulation in space-constrained applications, emphasizing robustness, green packaging, and compatibility with automated SMT assembly.
FAQ
What is the maximum allowable continuous reverse voltage for PD3Z284C16-7?
The absolute maximum reverse voltage is defined by its zener breakdown characteristic: operation above 17.1 V (VZ max) causes uncontrolled current rise. For reliable regulation, applied reverse voltage must stay within 15.3–17.1 V at IZT = 5 mA, with derating to 350 mW above 70°C ambient per Figure 1.
Does PD3Z284C16-7 support reflow soldering per JEDEC J-STD-020?
Yes - it is rated Moisture Sensitivity Level 1, meaning it may be stored indefinitely at ≤30°C/85% RH and subjected to standard Pb-free reflow profiles (peak 260°C) without preconditioning or baking, per J-STD-020D requirements.
How does the temperature coefficient affect regulation accuracy over –40°C to +125°C?
With a specified +10.4 to +14.0 mV/°C coefficient, VZ increases ~1.25 V across this 165°C span. For applications needing <1% total drift, external compensation (e.g., NTC resistor network) or tighter-tolerance alternatives like D3Z16BF-7 should be considered.
Is PD3Z284C16-7 suitable for use in life support systems?
No - Diodes Incorporated explicitly prohibits use in life support devices or systems without prior written approval from its CEO, as stated in the datasheet's "LIFE SUPPORT" notice. This part lacks the formal certification required for such safety-critical applications.
PD3Z284C16-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11.2 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
PD3Z284C16-7 FAQ
1.How can I place an order for PD3Z284C16-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C16-7 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 PD3Z284C16-7 reliable?
The price and inventory of PD3Z284C16-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C16-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C16-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C16-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C16-7?
PD3Z284C16-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C16-7 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 PD3Z284C16-7?
For technical support, including PD3Z284C16-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C16-7 requirements.
6.How does Aetrix verify that PD3Z284C16-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C16-7 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 PD3Z284C16-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C16-7?
All PD3Z284C16-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C16-7, 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 PD3Z284C16-7 part is unused and in its original packaging.
Return procedure for PD3Z284C16-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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