FEATURES

* High Power density, 40W in 1.5″ x 3″ footprint
* Meet Efficiency Level V
* Energy Consumption Criteria for No-Load under 100mW

EJ-0XXB-1YXXS-PW 25W/ 40W Open Frame Power Supply Description

The EJ-0XXB-1YXXS-PW 25W/ 40W Open Frame Power Supply delivers higher efficiency and improved no-load performance to meet the growing demand for green power technology. Featuring industry standard footprints, the EJ-0XXB-1YXXS-PW 25W/ 40W Open Frame Power Supply’s efficient design, compact size and rock-solid reliability make these power supplies the ideal solution for a range of consumer, industrial, and ITE applications.

DC Outputs

Model no.Output
voltage
Minimum loadMaximum load
with convection
cooling
Output wattsPeak Load with
Convection Cooling(60sec.)
O/P regulationRipple &
noise
(Vp-p)
LPS
EJ-025B-1Y05S-PW+5V0A5.00A25W7.00A(35W)5%100mV
EJ-040B-1Y12S-PW+12V0A3.34A40W4.17A(50W)3%120mVV
EJ-040B-1Y15S-PW+15V0A2.67A40W3.34A(50W)3%150mVV
EJ-040B-1Y18S-PW+18V0A2.23A40W2.78A(50W)3%180mVV
EJ-040B-1Y24S-PW+24V0A1.67A40W2.09A(50W)3%240mVV
EJ-040B-1Y36S-PW+36V0A1.12A40W1.39A(50W)2%240mVV
EJ-040B-1Y48S-PW+48V0A0.84A40W1.05A(50W)2%240mVV

Electrical specifications
• Input range : 90 – 264VAC
• Inrush current : < 40A peak @115VAC; < 80A peak @230VAC cold start @25°C • Input current (rms) : 1A @115VAC; 0.5A @230VAC max. • Efficiency : > 85% typical @full load, 115VAC (EJ-025B-1Y05S-PW: 80%)
• Maximum output power (Po) : 40 Watts convection cooling
• Hold-up time : > 6ms typical @full load, 115VAC
• Short circuit protection : Auto-recovery
• Over load protection : 180% maximum rating, Auto-recovery
• Over voltage protection : Output 110% to 130% rated output voltage

Safety standards
• UL 60950-1.
• CSA C22.2 No. 60950-1.
• Nemko EN60950-1
• CB IEC 60950-1

EMI standards
• FCC Part 15 Class B.
• CISPR22 Class B.
• EN 55022 Class B.
• EN 55024.
• CE.

Environmental
• Operating temperature : 0 to +70°C (Derate linearly 2.5% per °C from 51 to 70°C)
• Storage temperature: -40°C to +85°C
• Humidity: Non-condensing 5% to 95%
• MTBF : > 150,000 hours @full load and 25°C ambient temperature

Matching connectors
• CN1 = AC input JST P/N: B3P-VH-B (or equivalent) female housing JST P/N: VHR-3N(or equivalent).
• CN2 = DC output ST P/N: B2P-VH-B (or equivalent) female housing JST P/N: VHR-2N (or equivalent).

Description
• Dimension : L76.2 × W38.1 × H23.5 mm ( 3″ × 1.5″ × 0.93″ )
• Weight : 0.074 kgs. ( 0.164 lbs. )