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A1215DY-1WR1
● High efficiency with low output ripple and noise
● Low no-load power consumption and low quiescent current
- Product Description
- Parameter Introduction
- Precautions
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● Small size, high power density● High efficiency, low output ripple 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 1500 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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Product Model List
Model number
Rated Input Voltage (V)
Rated output
Typical Efficiency (%)
Maximum capacitive load
(uF)
Nominal
Scope
Voltage (V)
Current (mA)
A0505DY-1WR1
5
4.5~5.5
±5
±100
85
2200
A0509DY-1WR1
±9
±56
85
1000
A0512DY-1WR1
±12
±42
85
1000
A0515DY-1WR1
±15
±33
85
680
A0524DY-1WR1
±24
±21
85
680
A1205DY-1WR1
12
10.8~13.2
±5
±100
85
2200
A1209DY-1WR1
±9
±56
85
1000
A1212DY-1WR1
±12
±42
88
1000
A1215DY-1WR1
±15
±33
86
680
A1224DY-1WR1
±24
±21
82
680
A1505DY-1WR1
15
13.5~16.5
±5
±100
85
2200
A1512DY-1WR1
±12
±42
85
680
A1515DY-1WR1
±15
±33
87
680
A1524DY-1WR1
±24
±21
87
680
A2405DY-1WR1
24
21.6~2.64
±5
±100
85
2200
A2409DY-1WR1
±9
±56
85
1000
A2412DY-1WR1
±12
±42
87
1000
A2415DY-1WR1
±15
±33
86
680
A2424DY-1WR1
±24
±21
86
680
Note: * The capacitive load is the same for both the positive and negative outputs. 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, with the output load at 0 Ω.
A05XX
≤12
mA
Other
≤8
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
280
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 duration: 1 minute; leakage current less than 1 mA.
1500
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
2.1
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 the 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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