SRSB-40U12LG Bel Fuse Inc, SRSB-40U12LG Datasheet - Page 2

• 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

Input Specifications (continued)
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
Output Specifications
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
I
Turn On Voltage Threshold
Turn Off Voltage Threshold
Output Voltage Set Point
Line Regulation
Load Regulation
Regulation Over Temperature(-40 °C to +85 °C)
Output Current
Short Circuit Surge Transient
2
t Inrush Current Transient
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
Parameter
Parameter
Vo=1.2 V - 1.8 V
Vo=1.2 - 2.5 V
Vo=3.3 - 5.0 V
Vo=1.5 - 1.8 V
Vo=2.5 - 3.3 V
16.6 V
16.2 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=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=1.2 V
Vo=5.0 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=12 V
Vo=12 V
Vo=12 V
Vo=12 V
Vo=12 V
Min
-
-
-
-
-
0.01 A
60 mA
20 mA
17.2 V
16.8 V
1 mA
3 mA
Typ
11.750 V
1.182 V
1.478 V
1.773 V
2.463 V
3.250 V
4.925 V
Min
0 A
0 A
0 A
0 A
0 A
0 A
0 A
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
s
0.02 A
120 mA
50 mA
17.8 V
17.4 V
3 mA
7 mA
Max
±0.5 mV
±1.0 mV
±3.0 mV
±4.0 mV
±6.0 mV
±15 mV
±20 mV
0.5 A
2
±3 mV
±4 mV
±9 mV
±4 mV
±6 mV
±9 mV
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
s
12 V
Typ
-
-
-
-
-
-
-
-
Tested with simulated source impedance of
15 uH, 5 Hz to 20 MHz; use a 100 uF/100 V
electrolytic capacitor with ESR=1 ohm max
at 200 kHz at the input.
2
s
12.250 V
1.218 V
1.523 V
1.827 V
2.538 V
3.350 V
5.075 V
±15 mV
±18 mV
±14 mV
±16 mV
±30 mV
±35 mV
±3 mV
±4 mV
±8 mV
±9 mV
±5 mV
±9 mV
±9 mV
1 A
3.5 A
18 A
16 A
14 A
12 A
10 A
Max
8 A
2
s
Notes
Test conditions:
Vin=48 V; Io=50%
load
Notes