Overview
The PDZ4.7B-QX is a low-power general purpose voltage regulator diode produced by Nexperia USA Inc. This diode is housed in a very small SOD323 (SC-76) Surface-Mounted Device (SMD) plastic package, making it ideal for space-constrained designs. It is part of Nexperia’s extensive portfolio of diodes, which are used across various industries including automotive, industrial, mobile, and consumer applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Zener Voltage (VZ) | 4.65 | V |
| Maximum Zener Voltage (VZ) | 4.75 | V |
| Minimum Zener Voltage (VZ) | 4.55 | V |
| Zener Current (IZ) | 5 | mA |
| Tolerance | ±2% | |
| Maximum Forward Current (IF) | 200 | mA |
| Total Power Dissipation (Ptot) | 400 | mW |
| Peak Surge Power (PZSM) | 40 | W |
| Maximum Junction Temperature (TJ) | 150 | °C |
| Package | SOD323 (SC-76) | |
| Automotive Qualified | Yes (AEC-Q101) |
Key Features
- Planar Die Construction: Ensures reliable performance and stability.
- Low Power Dissipation: Total power dissipation of 400 mW, suitable for low-power applications.
- Small Package Size: SOD323 (SC-76) package, ideal for surface-mounted designs and space-constrained applications.
- Wide Voltage Range: Nominal voltage range from 2.4 V to 36 V (E24 range), with a tolerance of approximately ±2%.
- Low Dynamic Impedance: Very low dynamic impedance at low currents and low leakage current.
- Automotive Qualified: Qualified according to AEC-Q101, making it suitable for automotive applications.
- Lead-Free and RoHS Compliant: Compliant with EU RoHS 2011/65/EU directive and uses green molding compound as per IEC61249 standard (halogen-free).
Applications
The PDZ4.7B-QX Zener diode is versatile and can be used in various applications across different industries:
- Automotive: Suitable for automotive applications due to its AEC-Q101 qualification.
- Industrial: Used in industrial control systems and power supplies.
- Consumer Electronics: Found in mobile devices, wearables, and other consumer electronics for voltage regulation.
- Power Supplies: Used for voltage stabilization and regulation in power supply circuits.
- Computing and Networking: Used in computing and networking equipment for voltage reference and regulation.
Q & A
- What is the primary function of the PDZ4.7B-QX Zener diode?
The primary function of the PDZ4.7B-QX Zener diode is to provide a stable voltage reference point when reverse biased, making it suitable for voltage regulation applications.
- What is the nominal Zener voltage of the PDZ4.7B-QX?
The nominal Zener voltage of the PDZ4.7B-QX is 4.65 V.
- What is the maximum power dissipation of the PDZ4.7B-QX?
The maximum power dissipation of the PDZ4.7B-QX is 400 mW.
- Is the PDZ4.7B-QX qualified for automotive applications?
Yes, the PDZ4.7B-QX is qualified according to AEC-Q101, making it suitable for automotive applications.
- What is the package type of the PDZ4.7B-QX?
The PDZ4.7B-QX is housed in a SOD323 (SC-76) Surface-Mounted Device (SMD) plastic package.
- What is the tolerance of the Zener voltage for the PDZ4.7B-QX?
The tolerance of the Zener voltage for the PDZ4.7B-QX is approximately ±2%.
- Can the PDZ4.7B-QX be used in series with other Zener diodes?
Yes, the PDZ4.7B-QX can be used in series with other Zener diodes to achieve higher stable voltage values, but ensure to consider the power rating and heat dissipation of each diode.
- Is the PDZ4.7B-QX lead-free and RoHS compliant?
Yes, the PDZ4.7B-QX is lead-free and compliant with the EU RoHS 2011/65/EU directive, using green molding compound as per IEC61249 standard (halogen-free).
- What is the maximum junction temperature of the PDZ4.7B-QX?
The maximum junction temperature of the PDZ4.7B-QX is 150°C.
- How does the PDZ4.7B-QX handle reverse voltage?
When properly connected in reverse and a sufficient reverse voltage is applied to exceed its Zener voltage, the PDZ4.7B-QX will begin to conduct and remain at a relatively constant voltage level.
