http://www.tracopower.com
Page 1 of 3
DC/DC Converters
THD 15 Series, 15 Watt
Features
Smallest encapsulated 15W Converter
Ultra compact Size: 25.4x25.4x10.2mm
Single- and Dual Output Models
I/O- Isolation Voltage 1500VDC
High Efficiency up to 87%
Operating Temp. Range: -25C to 71C
Remote On/Off
Industry Standard Pinout
Lead free Design, RoHS compliant
3 Year Product Warranty
The THD-15 series is the latest generation of high performance 15W dc-dc converter
modules setting new standards concerning power density. This product comes in a
encapsulated package with dimensions of only 25.4 x 25.4 x 10mm and therefore
occupies 50%(!) less board space than existing 15W converters.
All models have wide 2:1 input voltage range and precisely regulated, isolated
output voltages. Built-in filters for both input and output minimizes the need for
external filtering. Further features include remote On/Off and short circuit pro-
tection. Typical applications for these converters are battery operated equipment,
instrumentation, distributed power architectures in communication and industrial
electronics and everywhere where space is limited on the PCB.
Order code
Input voltage range
Output voltage
Output current max.
Efficiency typ.
THD 15-2410
3.3 VDC
3`500 mA
84 %
THD 15-2411
5.1 VDC
3`000 mA
85 %
THD 15-2412
18 36 VDC
12 VDC
1`250 mA
86 %
THD 15-2413
15 VDC
1'000 mA
86 %
THD 15-2422
12 VDC
600 mA
85 %
THD 10-2423
15 VDC
500 mA
85 %
THD 15-4810
3.3 VDC
3`500 mA
84 %
THD 15-2411
5.1 VDC
3`000 mA
86 %
THD 15-4812
36 75 VDC
12 VDC
1`250 mA
87 %
THD 15-4813
15 VDC
1'000 mA
87 %
THD 15-2422
12 VDC
600 mA
85 %
THD 15-4823
15 VDC
500 mA
85 %
Models
pending
RoHS
compliant
http://www.tracopower.com
Page 2 of 3
All specifications valid at nominal input voltage, full load and +25C after warm-up time unless otherwise stated.
DC/DC Converters
THD 15 Series
15 Watt
Input Specifications
Input current (no load)
24 Vin models: 50 mA typ..
48 Vin models: 30 mA typ.
Input current (full load)
24 Vin; 3.3 Vout models: 570 mA typ.
24 Vin; other output models: 730 mA typ.
48 Vin; 3.3 Vout models: 280 mA typ.
48 Vin; other output models: 360 mA typ.
Start-up voltage /
24 Vin models: 17 VDC /16.5 VDC
under voltage shut down
48 Vin models: 34.0 VDC /32.5 VDC
Surge voltage
24 Vin models: 50 V max..
(100 msec. max.)
48 Vin models: 100 V max.
Conducted noise (input)
EN 55022 level A, FCC part 15, level A
(with external input capacitor, see Note 1)
Output Specifications
Voltage set accuracy
1 %
Regulation
Input variation Vin min. to Vin max
0.5% max.
Load variation 10 100 %
single output models: 0.5 % max.
dual output models balanced: 2.0 % max.
dual output models unbalanced: 5.0 % max.
Ripple and noise
100 mVpk-pk max.
(20 MHz Bandwidth)
(with external output capacitor, see Note 1)
Temperature coefficient
0.02 % /K
Output current limitation
>105% of Iout max., foldback
Short circuit protection
indefinite (automatic recovery)
Start-up time
30ms max.
Max. capacitive load
1200F
General Specifications
Temperature ranges
Operating
25 C ... +71C
Derating
2.5%/K above 50
Case temperature
+100 C max.
Storage
40 C ... +110 C
Humidity (non condensing)
85 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217 F)
> 190'000h @ +25C
Isolation voltage
Input/Output
1'500 VDC
Isolation capacity
Input/Output
235 pF typ.
Isolation resistance
Input/Output (500 VDC)
>100 M Ohm
Switching frequency (fixed)
330 kHz typ. (Pulse width modulation PWM)
Safety standards
UL 60950, EN 60950, IEC 60950
compliance up to 60 VDC input voltage (SELV limit)
Safety approvals
UL/cUL pending
Remote On/Off
ON:
open circuit on pin RC
OFF:
short circuit between pin RC and pin Vin
Page 3 of 3
Specifications can be changed without notice
DC/DC Converters
THD 15 Series
15 Watt
Physical Specifications
Case material
plastic PBT (UL94V-0 rated)
Baseplate
non conductive FR4
Potting material
silicon (UL94V-0 rated)
Weight
12 g (0.41 oz)
Soldering temperature
max. 260 C / 10sec.
Outline Dimensions mm
Pin diameter 0.8 0.05 (0.02 0.002)
Tolerances 0.35 (0.014)
Pin
Single
Dual
1
+Vin (Vcc)
+Vin (Vcc)
2
Vin (GND)
Vin (GND)
3
+Vout
+Vout
4
No pin
Common
5
Vout
Vout
6
Remote On/Off Remote On/Off
Pin-Out
Note 1
Recommended circuit to reduce conducted noise and output ripple & noise:
C1: 33F low ESR electrolytic capacitor
C2: 10F low ESR electrolytic capacitor
C3: 1 film capacitor
For dual output models use capacitors for each output
+Vin
- Vin
+Vout
-Vout
C1
C2
C3
Load
25.4
25.4
Bottom view
20.32
7.62
3.5
(0.3)
(0.14)
(0.8)
(1.0)
(1.0)
5.08
(0.2)
10
(0.39)
1
2
3
6
5
*27.9
*(1.1)
*3.8
*(0.15)
2.5
(0.1
)
4
10.16
(0.4)
2.5
(0.1)
10.16
(0.4)
*Dual Output Models
() = Inch
Rev. 07/05
PDF 
ZIP