Data Sheet

GAPTEC-Electronic GmbH & Co. KG
[e-mail] – www.gaptec-electronic.com
Page 3 of 5
3ACM_S3 – Rev. 2015-1.1
Specifications subject to change without notice.
3W- Single Output AC-DC Converter - Universal Input - Isolated & Regulated
3ACM_S3 Series
Typical application circuit
EMC recommended circuit
Model Fuse
(required)
C1 (required) L2 C2 (required) L1 (required) C3 (required) C4 CY0 TVS
3ACM_03S3 1A/250V 10μF/400V 4.7mH 330μF/25V 2.2μH 120μF/25V 0.1μF/50V 1nF/400VAC SMBJ7.0A
3ACM_05S3 1A/250V 10μF/400V 4.7mH 330μF/25V 2.2μH 68μF/35V 0.1μF/50V 1nF/400VAC SMBJ7.0A
3ACM_09S3 1A/250V 10μF/400V 4.7mH 330μF/25V 2.2μH 68μF/35V 0.1μF/50V 1nF/400VAC SMBJ12A
3ACM_12S3 1A/250V 10μF/400V 4.7mH 150μF/35V 2.2μH 68μF/35V 0.1μF/50V 1nF/400VAC SMBJ20A
3ACM_15S3 1A/250V 10μF/400V 4.7mH 150μF/35V 2.2μH 68μF/35V 0.1μF/50V 1nF/400VAC SMBJ20A
3ACM_24S3 1A/250V 10μF/400V 4.7mH 100μF/35V 2.2μH 68μF/35V 0.1μF/50V 1nF/400VAC SMBJ30A
Note:
C1:AC input, C1is input filer capacitor (which is required);
DC input, is a filtering capacitor in EMC Filter, the value of C1 is 10μF/400V(when
input voltage is above 370VDC, and the value of C1 is 10μF/450V).
C2 and C3 are output filer capacitors (which is required), C2,C3 and L1 form a pi-
type filter circuit, they are recommended to be high frequency and low impedance
electrolytic capacitors. Capacitance and rated ripple current of capacitors refer to the
datasheets provided by the manufactures. Voltage derating of capacitors should be
80% or above. C4 is a ceramic capacitor, which is used to filter high frequency noise.
Current of L1 and L2 refer to the datasheets provided by the manufactures, current
derating should be 80% or above. TVS is a recommended component to protect post-
circuits (if converter fails). External input NTC model is recommended to use 13D-5.
External input MOV model is recommended to use S14K320.
3ACM_024S3
3ACM_12S3
3ACM_05S3
3ACM_12S3 - DC input
3ACM_S3 - DC input