C Li XI’EIYS Powil
DC-DC
Input
Input Voltage Range 15.5-40 VDC
Input Transient 10-50 V for 10 s
600 V for 10 µs 50 Ωsource resistance per
MIL-STD-704A, 100 V for 50 ms 0.5 Ω
source resistance per MIL-STD-1275A,
±250 V for 100 µs as per MIL-STD-1275A
Output
Output Voltage Clamped <50 VDC
Output Power 50 W maximum
Inhibit Off = TTL Low or short circuit
On = TTL High or open circuit
General
Efficiency 97% typical
Resistance 0.25 Ω input to output
<0.1 Ω case to case pin at 10A
Inhibited Power 0.1 W
Dissipation
Inrush Current 25 A at 28 Vin
Fusing External fusing required
MTBF 846 kHrs to MIL-HDBK-217F
at +40 °C, GF
Specification
Filter Module
Wide Input Voltage Range 10-50 VDC
Active Surge Protection
Max Output Power 50 W
Wide Temperature Range -55 °C to 100 °C
MIL-STD-461 and DEF-STAN 59-411
MIL-STD-1275 and DEF-STAN 61-5
3 Year Warranty
MTF50
xppower.com
Environmental
Operating Temperature -40 °C to +85 °C ambient
-40 °C to +100 °C case
Extended Temperature Range: (option -LT)
-55 °C to +85 °C ambient
-55 °C to +100 °C case
Storage Temperature -55 °C to +125 °C
Operating Altitude Tested to 70000 ft (21336 m)
Operating Humidity 88% relative humidity
240h MIL-STD-810D Method 507.2
Shock 100 g MIL-STD-810D Method 516.3
Vibration 5 to 500 Hz MIL-STD-810D
Method 514.3
Bump 2000 Bumps in each axis
40 g MIL-STD-810D Method 516.3
Salt Atmosphere 48 hours MIL-STD-810E Method 509.1
EMC
Conducted Emissions EN55022 conducted level B.
MIL-STD-461E/F/G, CE101 & CE102
DEF-STAN 59-411 DCE01/DCE02
Immunity MIL-STD-704E, MIL-STD 704A &
MIL-STD-1275A-E
DEF-STAN 61-5 part 6 issue 5
Conducted MIL-STD-461E/F/G, CS101, CS114,
Susceptibility CS115 & CS116
EMC standards are met when used in conjuction with the MTC series
of DC/DC converters
m] 1. Add suffix I :9‘ mm mags
01 July 19
DC-DC
MTF50
Models & Ratings
Application Notes
Mechanical Details
1
7
8
14
0.10 (2.54)
0.212±0.008 (5.4±0.2)
0.149 (3.80)
0.149 (3.80)
1.275 (32.40)
1.023±0.012 (26.00±0.3)
0.724 (18.40)
0.137±0.008 (3.50±0.2)1.300 (33.02) 13 x 0.100 (2.54)
1.575±0.012 (40.00±0.3)
0.177 (4.50)
0.500
(12.70 )
+0.5
-0.3
+0.021
-0.012
Bottom View
Output Voltage Input Voltage Efficiency Model Number
50 VDC max 15.5-40 VDC 97% MTF50
1. Add suffix ‘-LT’ to the part number for extended temperature range version (-55 °C).
2. Add suffix ‘-ESS’ to the part number for extended environmental stress screening.
Above working
limits
Reverse polarity
protection
600
250
100
50
10
-250
10 µs 100 µs 1 ms 50 ms 100 ms
Input Voltage
Time in seconds
Normal operating area
+Vin (6) +Vout (9)
MTF50
-Vin (4)
Y-cap (3)
Case (2)
-Vout (11)
MTCxx28Sxx
+Vin (6) +Vout (14)
-Vin (4)
Case (2) -Vout (12)
Load
Safe Operating Area
EMC Connection Diagram
Conducted Emissions
MTC0528S12 without MTF50 filter
MTC0528S12 with MTF50 filter
Pin Function
1No Pin
2 Case
3 Y-cap
4-Vin
5 No Pin
6 +Vin
7 INH
8No Pin
9 +Vout
10 No Pin
11 -Vout
12 No Pin
13 No Pin
14 No Pin
Notes
1. Dimensions are in inches (mm)
2. Tolerance: ±0.02 (±0.5) except where indicated
3. Weight: 0.06 lbs (25 g)
4. Materials & Finish:
Pin - Diameter: 0.032 (0.8)
Material: Cu Zn30 2.5 µm Ni
Finish: 0.2-0.5 µm AU (HV 170-200)
Mounting Hole - Diameter: 0.102 (2.6)
Case - Material: Aluminium (Al Mg Si 0.5)
Finish: Chromated
Nameplate - Non-conductive plastic
Notes

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