2S7B_3UP Series
2W - Single/Dual Output DC-DC Converter - Fixed Input - Isolated & Unregulated
DC-DC Converter
2 Watt
The 2S7B_3UP series are specially designed for applications where a group of polar
power supplies are isolated from the input power supply in a distributed power
supply system on a circuit board.
High Efficiency up to 89%
3000VDC Isolation
Temperature Range:
-40°C to +105°C
SIP Package
No external component
required
Internal SMD construction
No Heat sink Required
High power density
These products apply to:
Industry Standard Pinout
RoHS Compliance
1) Where the voltage of the input power supply is stable
(voltage variation ≤ 10ꢀ)ꢁ
2) Where isolation is necessary between input and output
(isolation voltage ≤ 3000VDC)ꢁ
3) Where the output voltage regulation and the ripple & noise of the output
voltage is not strictly required.
Such as: digit circuit conditionꢁ normal low-frequency artificial circuit conditionꢁ
relay drive circuit and data switching circuit.
UL-60950-1 (E347551)
Common specifications
Output specifications
Short circuit protection*:
2S7B_0524S3U/2S7B_0524D3U/
2S7B_24xxS3U/2S7B_24xxD3U: 1s
Others: Continuous, automatic
recovery
Item
Test condition
Min
Typ
Max
Units
Output voltage
accuracy
See tolerance envelope graph
Line regulation
For Vin change of 1ꢀ
• 3.3VDC output
• others
Temperature rise at full load:
Cooling:
25°C MAX, 15°C TYP
Free air convection
-40°C – +105°C
1.5
1.2
ꢀ
ꢀ
Operation temperature range:
Storage temperature range:
Pin welding resistance temperature:
Storage humidity range:
Case material:
Load regulation
10ꢀ to 100ꢀ load
• 3.3VDC output
• 5V output
18
12
9
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
-55°C – +125°C
• 9V output
300°C MAX, 1.5mm from case for 10 sec
< 95ꢀ
• 12V output
• 15V output
• 24V output
8
7
6
Plastic [UL94-V0]
>3,500,000 hours
2.4g
Temperature
coefficient
100ꢀ full load
0.03
200
ꢀ/°C
MTBF:
Weight:
Ripple & Noise*
20MHz Bandwidth
75
mVp-
p
* Supply voltage must be discontinued at the end of short circuit duration for 2S7
B_0524S3U/2S7B_0524D3U/2S7B_24xxS3U/2S7B_24xxD3U models.
Switching fre-
quency
Full load, nominal
input
100
KHz
Input specifications
*Test ripple and noise by “parallel cable” method. See detailed instructions.
Item
Test condition
Min
Typ
Max
Units
Input current
• 5VDC input
• 12VDC input
• 15VDC input
• 24VDC input
506/35 -/60
208/20 -/50
mA
mA
mA
mA
EMC specifications
(full load / no load)
EMI
EMI
EMS
CE
CISPR22/EN55022
CLASS B (External Circuit Refer to
EMI recommended circuit)
159/15
104/10
-/35
-/30
Reflected ripple
current
15
mA
RE
CISPR22/EN55022
CLASS B (External Circuit Refer to
EMI recommended circuit)
Input surge voltage
(1sec. max.)
• 5VDC input
• 12VDC input
• 15VDC input
• 24VDC input
-0.7
-0.7
-0.7
-0.7
9
VDC
VDC
VDC
VDC
18
21
30
ESD
• 2S7B_S
• 2S7B_D
• IEC/EN61000-4-2 Contact 8KV
perf. Criteria B
• IEC/EN61000-4-2 Contact 6KV
perf. Criteria B
Input filter
Hot plug
Capacitance
Unavailable
Isolation specifications
Item
Example:
2S7B_0505D3UP
2 = 2Watt; S7 = SIP7; B= Pinning; 5Vin; 5Vout; D =Dual Output;
3 = 3kVDC; U = Unregulated Output; P = Short circuit protection
Test condition
Min
Typ
Max
Units
VDC
Isolation voltage
Tested for 1 minute
and 1mA max
3000
Isolation resistance
Test at 500VDC
1000
MΩ
Isolation capacitance Input/Output,
100KHz/0.1V
• 2S7B_2415D3UP,
2S7B_2424S3UP
50
20
pF
pF
• Others
Page 1 of 5
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
2S7B_3UP – Rev. 2020-1.9
Specifications subject to change without notice.