FM-461 EMI FILTER
EMI INPUT
F
ILTERS
1.75 TO 5 AMP
RECOMMENDED
ABSOLUTE MAXIMUM RATINGS
DERATING
OPERATING CONDITIONS
Input Voltage
Input Voltage
Derate linearly from 100% at 85°C case to
the 33 VDC at 125°C case
Input Ripple Current
Derate linearly from 100% at 85°C case to
the following at 125°C case
270 mA rms FM-461
• 0 to 40 VDC continuous
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –55°C to +135°C
Input Voltage Range
• 0 to 40 VDC continuous
Case Operating Temperature (Tc)
• –55°C to +85°C full power
• –55°C to +125°C absolute
Isolation
400 mA rms FMA-461
480 mA rms FMB-461
• 100 megohm minimum at 500 V
• Any pin to case (except case pin)
DC Input and Output Current
Derate linearly from 100% at 85°C case to
the following at 125°C case
750 mA FM-461
1.7 A FMA-461
1.7 A FMB-461
Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified.
FM-461
FMA-461
TYP
28
FMB-461
TYP
28
PARAMETER
INPUT VOLTAGE
INPUT CLAMPING
VOLTAGE
CONDITION
CONTINUOUS
–55°C
MIN
0
TYP MAX
MIN
0
MAX
40
MIN
0
MAX
40
UNITS
28
43.2
47.0
49.9
—
40
VDC
38.9
42.3
44.9
—
47.5
51.7
54.8
1.75
0.67
38.9
42.3
44.9
—
43.2
47.0
49.9
—
47.5
51.7
54.8
3.8
38.9
42.3
44.9
—
43.2
47.0
49.9
—
47.5
51.7
54.8
5.0
+25°C
VDC
+125°C
INPUT CURRENT
DC
A
RIPPLE
—
—
—
—
1.0
—
—
1.2
A rms
NOISE
REJECTION
DC RESISTANCE
15 kHz - 50 MHz
STEADY STATE
—
40
—
—
40
—
—
40
—
dB
(R
)
—
0.38
—
0.42
0.07
0.10
—
0.15
0.07
0.09
—
0.10
Ω
DC
CAPACITANCE
ANY PIN TO CASE
STEADY STATE
1900
2200
3700
V
4400
6450
8000
pF
1
OUTPUT VOLTAGE
= V - I (R
)
VDC
OUT
IN IN DC
OUTPUT CURRENT
POWER
STEADY STATE
—
—
—
—
1.75
1.3
—
—
—
3.8
1.6
—
—
—
—
5.0
2.5
A
DISSIPATION
MAX. CURRENT
—
W
Note
1. Typical applications result in Vout within 2% of Vin.
469 H
2.4 H
Positive
Positive
Input
Output
1000 pF
x2
0.1 F
0.01F
0.001F
50 ⍀
Output
Common
Input
Common
4.7 F
1000 pF
500 V
150 ⍀
FM-461
47 pF
FIGURE 1: SCHEMATIC
B5-4
CRANE [ Crane Aerospace & Electronics. ]
