SRSB-40U12LG Bel Fuse Inc, SRSB-40U12LG Datasheet - Page 4

• Manufacturer Part Number: SRSB-40U12LG
• Description: CONV DC/DC 3.5A 12VDC SMD
• Manufacturer: Bel Fuse Inc
• Series: xRSB-40Ur
• Type: Isolated with Remote On/Off and UVLOr

Specifications of SRSB-40U12LG

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 42W
• Mounting Type: Surface Mount
• Voltage - Input: 18 ~ 75V
• Package / Case: 8-DIP SMD Module, 1/16 Brick
• 1st Output: 12 VDC @ 3.5A
• Size / Dimension: 1.30" L x 0.90" W x 0.45" H (33mm x 22.9mm x 11.34mm)
• Power (watts) - Rated: 42W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 85%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: SRSB-40U12L

General Specifications
Control Specifications
Note: All specifications are typical at 25
Efficiency
Switching Frequency
Isolation Capacitance
Over Temperature Protection
Output Voltage Trim Range
Over Voltage Protection
MTBF
Dimensions
Weight
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
ISOLATED DC/DC CONVERTERS
24 Vdc/48 Vdc Input 1.2 Vdc - 12 Vdc / 18 A - 3.5 A Outputs, 1/16 Brick
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
Millimeters (L × W × H)
Parameter
Parameter
Inches (L × W × H)
Vo=1.2 V -12 V
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=1.8 V
Vo=12 V
Active Low
Active High
-
450 kHz
500 kHz
90% Vo
78%
79%
81%
83%
85%
85%
83%
Min
-
-
-
-
°C
unless otherwise stated.
-0.3 V
-0.3 V
2.4 V
2.4 V
0 mA
33.0 x 22.9 x 11.34
33.0 x 22.9 x 11.39
Min
1.3 x 0.9 x 0.446
1.3 x 0.9 x 0.460
130% Vo
500 kHz
550 kHz
3900 pF
125 °C
87.5%
82%
84%
85%
86%
87%
85%
14 g
Typ
TBD
-
Typ
-
-
-
-
-
160% Vo
110% Vo
550 kHz
600 kHz
Max
-
-
-
-
-
-
-
-
-
0.8 V
0.8 V
1 mA
18 V
18 V
Max
Vin=48 V, full load
Test conditions: Vin=48 V, full load and
short the feedback optocoupler.
Calculated Per Bell Core SR-332 (I
Nominal; T
SRSB-40Uxxx
0RSB-40Uxxx
When Remote On/Off pin is
open, for active low option, unit
is off; for active high option, unit
is on
a
= 25 °C)
Notes
Notes
O
=