Description:The MKZI20 series features multiple functions, including undervoltage, overcurrent, overvoltage, short-circuit protection, remote on/off, and output voltage adjustment, and it has obtained the A-level certification for conducted EMI per EN 55032/11. Additionally, the MKZI20 series has passed vibration and shock/bump tests EN 61373, cooling, dry, and damp heat tests IEC/EN 60068-2-1,2,30, complies with the railway EMC standard EN 50121-3-2, and has obtained railway certification EN 50155(IEC 60571) as well a
OVER LOAD, OVER VOLTAGE, SHORT CIRCUIT, UNDER VOLTAGE
Ripple Voltage (Main Out):
0.017675 Vrms
Screening Level:
EN 50155, EN 45545-2, IEC/EN/UL 62368-1
Seated Height-Max:
11.75 mm
Surface Mount:
NO
Technology:
HYBRID
Terminal Finish:
Tin (Sn)
Terminal Form:
PIN/PEG
Terminal Position:
DUAL
Total Power Output-Max:
20 W
Trim/Adjustable Output:
YES
Warm-up Time:
0.03 s
Width:
25.4 mm
MKZI20-24S05 Frequently Asked Questions (FAQs)
The recommended PCB layout involves keeping the input and output traces separate, using a solid ground plane, and placing the input capacitors close to the device. For thermal management, ensure good airflow, use a heat sink if necessary, and follow the recommended thermal pad layout.
To ensure EMC and EMI compliance, follow proper PCB design and layout guidelines, use shielding and filtering components, and consider using a metal enclosure. Additionally, perform EMC and EMI testing to validate compliance with relevant standards.
The recommended input capacitors are low-ESR ceramic capacitors with a minimum capacitance of 10uF and a voltage rating of 50V. For output capacitors, use low-ESR ceramic or electrolytic capacitors with a minimum capacitance of 10uF and a voltage rating of 24V.
Implement overvoltage protection (OVP) and undervoltage protection (UVP) circuits to prevent damage from voltage fluctuations. Use a fuse or a current limiting resistor to protect against overcurrent conditions. Additionally, consider using a supervisory IC to monitor the output voltage and provide a reset signal if necessary.
The typical efficiency of the MKZI20-24S05 is around 85-90% depending on the input voltage and output load. The power loss can be estimated using the datasheet's efficiency curves and the device's thermal characteristics.
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MKZI20-24S05 Overview
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