
DELTA ELECTRONICS, INC.
3, TUNG YUAN ROAD, CHUNGLI
INDUSTRIAL ZONE
TAOYUAN SHIEH, TAIWAN, R.O.C.
TEL: 886-3-4526107
FAX: 886-3-4527314
mail: powersales@delta.com.tw
DELTA PRODUCTS CORPORATION
4405 CUSHING PARKWAY
FREMONT, CA 94538, U.S.A.
TEL: 1-510-668-5100
FAX: 1-510-668-0680
DELTA ELECTRONICS(JAPAN) INC.
DELTA SHIBADAIMON BLDG.
2-1-14 SHIBADAIMON, MINATO-KU,
TOKYO, 105-0012, JAPAN
TEL: 81-3-5733-1111
FAX: 81-3-5733-1211
DELTA ELECTRONICS, EUROPE LTD.
2 YOUNG PLACE
KELVIN INDUSTRIAL ESTATE
EAST KILBROIDE, GLASGOW G75 OTD, 
U.K.
TEL: 44-1355-588888
FAX: 44-1355-588889
All specifications are subject to change without prior notice.
ELECTRICAL SPECIFICATIONS
INPUT
 Input Range
 Frequency
 Input Current
 Efficiency
 EMI/RFI
90~135Vac/ 180~265Vac
47~63Hz
<6A @ 115Vac, <3A @ 230Vac 
>70% @ 115Vac or 230Vac
CISPR 22 Class B, FCC
OUTPUT 
 Maximum Power
 Holdup Time
 Rise Time
 Leakage Current
 Overvoltage Protection: +3.3V, +5V, +12V
 Overcurrent Protection: <240VA
 Short-Circuit Protection: Latch off
 Power Good Signal: TTL compatible on delay 100mS 
to 500mS, off delay 1mS.
250 Watts
>10mS @ 115/230Vac
<20mS
<0.75mA @ 240Vac
DPS-250WB
 Series
120mV
-
0.3A
0.0A
±
10%
-12V
V5
50mV
2.5A
2.0A
0.0A
±
5%
+5Vsb
V6
120mV
-
10.0A
1.0A
±
5%
+12V2
V4
120mV
8.0A
6.0A 
1.0A
±
5%
+12V1
V3
50mV
-
19.0A
0.3A  
±
5%
+5V
V2
50mV
-
18.0A
0.5A
±
5%
+3.3V
V1
Ripple & Noise
Vp-p
Peak Load
Maximum 
Load
Minimum 
Load
Regulation
Voltage
Output
1. Total continue power output: 250W
2. The combined power on +3.3V & +5V: 105W max
3. The combined power on +3.3V, +5V & +12V1 & +12V2: 240W max
FEATURES
 80mm fan
 Comply with Intel SFX12V 2.1
 Remote On/Off
 Low acoustics noise
 High reliability
 Fan speed control
 Short circuit protection
 Over voltage protection
 Over current protection
 Passive PFC to meet EN61000-3-2
ENVIRONMENTAL
 Operating ambient temperature: 10~50 oC
 Operating relative humidity: 5~85%
 Storage ambient temperature: -40~70oC
 Storage relative humidity: 5~95%
 Altitude: 10,000~50,000 feet
 MTBF: > 100K hours @ max. load & 25oC 
ambient conditions.
150 (W) x 86 (H) x 101.6 (L) mm
CB