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Name: SD-25
Product catalog: DC DC Converter

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25W Single Output DC-DC Converter   SD-25 series
2:1 wide input range
Protections: Short circuit / Overload / Over voltage
1500VAC I/O isolation
Built-in EMI filter, low ripple noise
100% full load burn-in test
Fixed switching frequency at 83KHz
Low cost High reliability
2 years warranty
Model SD-25A-5  SD-25B-5  SD-25C-5 SD-25A-12   SD-25B-12 SD-25C-12 SD-25A-24  SD-25B-24  SD-25C-24
DC Voltage 5V 12V 24V
Rated Current 5A 2.1A 1.1A
Current Range 0 ~ 5A 0 ~ 2.1A 0 ~ 1.1A
Rated Power 25W 25.2W 26.4W
Ripple & Noise 100mVp-p 120mVp-p 150mVp-p
Voltage Adj. Range 4.75~5.5VDC 11-16VDC 23-30VDC
Voltage Tolerance  ±2.0% ±1.0% ±1.0%
Line Regulation  ±0.5% ±0.3% ±0.2%
Load Regulation ±0.5% ±0.3% ±0.2%
Setup, Rise, Hold Up Time 2.5s, 50ms, ------ at full load
Voltage Range A: 9.2 ~18VDC   B:19 ~ 36VDC   C:36~72VDC
Efficiency 71% 72% 74% 72% 75% 78% 75% 78% 81%
DC Current A:3.2A/12V B:1.6A/24V C:0.8A/48V
Over Load 105 ~ 150% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed
Over Voltage 5.75 ~ 6.75V/10% load 16.8 ~ 20V/10% load 31.5 ~ 37.5V/10% load
Protection type : Hiccup mode, recovers automatically after fault condition is removed
Working Temp. -10 ~ +60℃ (Refer to “Derating Curve”)
Working Humidity 20 ~ 90% RH non-condensing
Storage Temp., Humidity -20 ~ +85℃, 10 ~ 95% RH
Temp. Coefficient ±0.03%/℃ (0 ~ 50℃)
Vibration 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
Safety Standards Design refer to LVD
Withstand Voltage I/P-O/P: 1.5KVAC   I/P-FG:2.0KVAC   O/P-FG: 0.5KVAC
Isolation Resistance I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃ / 70% RH
EMC Emission Compliance to EN55022 (CISPR22) Class B
EMC Immunity Compliance to EN61000-4-2, 3, 4, 6, 8, EN55024, heavy industry level, criteria A
Dimension 99*97*36mm (L*W*H)
Weight  0.38kg
Packing 45pcs/17.8kg/0.9CUFT
1. All parameters NOT specially mentioned are measured at 12,24,48VDC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives.

If you have any enquiry about quotation or cooperation , please feel free to email us at or use the following enquiry form . Our sales representative will contact you within 24 hours. Thank you for your interest in our products.