Data Sheet

GAPTEC-Electronic GmbH & Co. KG
[e-mail] – www.gaptec-electronic.com
Page 1 of 5
1T8A_1.5UP – Rev. 2017-1.5
Specifications subject to change without notice.
1T8A_1.5UP Series
1W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
Small footprint
Miniature SMD package style
High efficiency up to 80%
1500VDC isolation
Temperature range:
-40°C ~ +105°C
Industry standard pinout
Low temperature rise
Internal SMD construction
No external component
required
RoHS compliance
Short circuit protection (SCP)
DC-DC Converter 1 Watt
The 1T8A_1.5UP Series is specially designed for applications where a group of
polar power supplies are isolated from the input power supply in a distributed po-
wer supply system on a circuit board.
These products apply to:
1) Where the voltage of the input power supply is fixed (voltage variation ≤ ±10%)
2) Where isolation is necessary between input and output
(isolation voltage ≤1500VDC)
3) Where the regulation of the output voltage and the output ripple noise are not
demanding
Such as: digit circuit condition; normal low-frequency artificial circuit condition;
relay drive circuit condition, etc.
Common specifications
Short circuit protection*: 1T8A_0303S1.5U/1T8A_0524S1.5UP/
1T8A_24xxS1.5UP: 1s
Others: Continuous, automatic recovery
Temperature rise at full load: 25°C TYP (Ta= 25°C)
Cooling: Free air convection
Operation temperature range: -40°C~+105°C
Storage temperature range: -55°C ~+125°C
Lead temperature 300°C MAX, 1.5mm from case for 10 sec
Storage humidity range: < 95%
Package material: Epoxy Resin [UL94-V0]
MTBF (MIL-HDBK-217F@25°C): >3,500,000 hours
Weight: 1.6g
*Supply voltage must be discontinued at the end of short circuit duration for mo-
dels 1T8A_03xxS1.5UP, 1T8A_0524S1.5UP and 1T8A_24xxS1.5UP.
Isolation specifications
Item Test condition Min Typ Max Units
Isolation voltage Tested for 1 minute and
1mA max
1500 VDC
Isolation resistance Test at 500VDC 1000 MΩ
Isolation
capacitance
Input/Output 100KHz/1V 20 pF
Input specifications
Item Test condition Min Typ Max Units
Input current
(full load / no load)
• 3.3VDC input
• 5VDC input
• 12VDC input
• 15VDC input
• 24VDC input
404/25
250/20
104/15
82/10
52/7
-/70
-/60
-/50
-/35
-/30
VDC
VDC
VDC
VDC
VDC
Reflected ripple
current
15 mA
Input surge voltage
(1 sec. max.)
• 3.3VDC input
• 5VDC input
• 12VDC input
• 15VDC input
• 24VDC input
-0.7
-0.7
-0.7
-0.7
-0.7
5
9
18
21
30
VDC
VDC
VDC
VDC
VDC
Input filter Filter capacitor
Hot plug Unavailable
Model selection:
WCTP**_xxyyN##O
W= Watt; C= Case; T= Type; P= Pinning; **= Voltage Variation
(omitted ± 10%); xx= Vin; yy= Vout; N= Numbers of Output;
##= Isolation (kVDC); O= output regulation
Example:
1T8A_0505S1.5UP
1=1Watt; T8= SMT8; A=Pinning; 5Vin; 5Vout; S=Single output;
1.5=1.5kVDC; U=Unregulated output; P= Short circuit protection
UL-60950-1 Certified
E347551
Output specifications
Item Test condition Min Typ Max Units
Output voltage
accuracy
See tolerance envelope graph
Line regulation For Vin change of 1%
• 3.3V output
• Others
±1.5
±1.2
%
%
Load regulation 10% to 100% load
• 3.3V output
• 5V output
• 6V output
• 9V output
• 12V output
• 15V output
• 24V output
18
12
10
8
7
6
5
%
%
%
%
%
%
%
Temperature drift 100% full load ±0.03 %/°C
Ripple & Noise* 20MHz Bandwidth 60 150 mVp-p
Switching frequency Full load, nominal input 100 KHz
Reflow Soldering
Temperature
Peak temp.≤245°C, maximum duration time
≤60s at 217°C. For actual application, please
refer to IPC/JEDEC J-STD-020D.1.
* Ripple and noise tested with “parallel cable” method. See detailed operation
instructions at DC-DC Application Notes.
EMC specifications
EMI CE CISPR22/EN55022
CLASS B (External Circuit Refer to
EMC recommended circuit)
EMI RE CISPR22/EN55022
CLASS B (External Circuit Refer to
EMC recommended circuit)
EMS ESD IEC/EN61000-4-2 Contact ±8KV
perf. Criteria B