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F1209DY-1WR1
● High efficiency with low output ripple and noise
● Low no-load power consumption and low quiescent current
- Product Description
- Parameter Introduction
- Precautions
-
● Small size, high power density● High efficiency with low output ripple and noise.● Low no-load power consumption and low quiescent current.● Long-duration short-circuit protection with auto-recovery● Good thermal stability and excellent temperature characteristics.● Operating temperature range: -40°C to +85°C● Isolation voltage up to 3000 VDC● High reliability (MTTF ≥ 3.5 million hours)● International standard DIP package, saving PCB mounting space.● Environmentally friendly design, compliant with the RoHS Directive.● 100% Full-load aging
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Model number
Rated Input Voltage (V)
Rated output
Typical Efficiency (%)
Maximum capacitive load
(uF)
Nominal
Scope
Voltage (V)
Current (mA)
F0303DY-1WR1
3.3
3.0~3.6
3.3
303
80
3300
F0305DY-1WR1
5
200
83
2200
F0503DY-1WR1
5
4.5~5.5
3.3
303
80
3300
F0505DY-1WR1
5
200
83
3300
F0509DY-1WR1
9
111
86
2200
F0512DY-1WR1
12
83
81
1000
F0515DY-1WR1
15
67
85
1000
F0524DY-1WR1
24
42
88
1000
F1203DY-1WR1
12
10.8~13.2
3.3
303
80
3300
F1205DY-1WR1
5
200
84
2200
F1209DY-1WR1
9
111
86
2200
F1212DY-1WR1
12
83
86
1000
F1215DY-1WR1
15
67
85
1000
F1224DY-1WR1
24
42
88
1000
F1505DY-1WR1
15
13.5~16.5
5
200
85
3300
F1512DY-1WR1
12
83
86
1000
F1515DY-1WR1
15
67
86
1000
F1524DY-1WR1
24
42
85
1000
F2403DY-1WR1
24
21.6~26.4
3.3
303
80
3300
F2405DY-1WR1
5
200
85
3300
F2409DY-1WR1
9
111
86
1000
F2412DY-1WR1
12
83
86
1000
F2415DY-1WR1
15
67
86
1000
F2424DY-1WR1
24
42
84
1000
Output characteristics
Project
Conditions
smallest
Typical
Maximum
Unit
Output power
0.1
1
W
Line regulation of voltage
Under rated load, the input voltage varies by ±1%.
±1.2
±1.5
%
Load Regulation Rate
Under nominal input conditions, the load varies from 10% to 100%.
10
15
Quiescent current
Under the rated input, when the output load is 0
F03XX/F05XX
≤20
mA
Other
≤10
Temperature drift coefficient
Under rated load
±0.03
%/°C
Ripple & Noise
Bandwidth: 20 MHz, using the parallel‑line method.
50
100
mVp-p
Switching frequency
Rated input voltage
250
KHz
Output short-circuit protection
Long-duration short-circuit protection
Input filter
Capacitor filtering
Hot-swappable
Not supported
Output voltage accuracy
See the error envelope plot.
Insulation properties
Project
Test conditions
smallest
Typical
Maximum
Unit
Insulation resistance
500VDC
1000
MΩ
Insulation voltage
Test time between input and output: 1 minute; leakage current less than 1 mA.3000
VDC
General Characteristics
Project
Conditions
smallest
Typical
Maximum
Unit
Storage humidity
5
95
%
Operating temperature
-40
85
°C
Storage temperature
-55
125
Case temperature rise during operation
15
25
Pin soldering temperature resistance
Solder joint is 1.5 mm from the housing; apply for 10 seconds.
300
MTTF
MIL-HDBK-217F@25℃
350
Ten thousand hours
Weight
2.5
Kerl
Cooling method
Natural air cooling
Housing material
Flame-retardant, heat-resistant plastic (UL94-V0)
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Avoid operating under no-load conditions whenever possible: When the load power consumption is less than 10% of the module’s rated output power. % It is recommended to connect a dummy load at the output or to select a module with a lower rated power; the dummy load (resistor) can be set to 10% of the module’s rated power. % Calculate: resistance value R = U 2 /(10 % ×1W);Avoid excessively large output bypass capacitors: The external capacitor C2 at the output should not have an excessively large capacitance; otherwise, it may cause overcurrent during module startup or result in poor startup performance. The specific value should be selected based on the capacitor’s datasheet.This product series does not support hot-swapping on the input side or parallel operation on the output side.In applications with stringent ripple‑noise requirements, an external LC filter should be used. The resonant frequency of the LC filter must be significantly lower than the switching frequency of the DC/DC converter to prevent mutual interference that could increase output ripple or damage the module, as shown in the figure.
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