http://www.tracopower.com
DC/DC Converters
THD 12 Series, 12 Watt
Features
Highest Power Density: 12W in DIL-24
Package!
Wide 2:1 Input Range
Very high Efficiency up to 88%
I/O-Isolation 1500V
Input Filter meets EN 55022A without
ext. Components
Remote On/Off
Shielded Metal Case with insulated
Baseplate
Continuous Short-Circuit Protection
Operating Temp. Range -40C to +85C
(with Derating)
Lead free Design, RoHS compliant
3 Year Product Warranty
The THD-12 series is a range of high performance, isolated 12W dc/dc convert-
ers. They come in a low profile, DIL-24 package with standard industry pin-out.
Overload and overvoltage protection as well as remote On/Off are included as
standard. Built-in filters for both input and output minimizes the need of external
filtering. Full SMD-design with exclusive use of ceramic capacitors guarantees a
high reliability and long product lifetime. Typical applications for these converters
are industrial electronics, instrumentation, data communication systems and battery
operated equipment with limited space available on the PCB.
Order code
Input voltage range
Output voltage
Output current max.
Efficiency typ.
THD 12-1209
2.5 VDC
3`500 mA
82 %
THD 12-1210
3.3 VDC
3`500 mA
84 %
THD 12-1211
5.1 VDC
2'400 mA
86 %
THD 12-1212
9 18 VDC
12 VDC
1`000 mA
86 %
THD 12-1213
15 VDC
800 mA
86 %
THD 12-1221
5 VDC
1`200 mA
82 %
THD 12-1222
12 VDC
500 mA
87 %
THD 12-1223
15 VDC
400 mA
87 %
THD 12-2409
2.5 VDC
3`500 mA
83 %
THD 12-2410
3.3 VDC
3`500 mA
85 %
THD 12-2411
5.1 VDC
2'400 mA
87 %
THD 12-2412
18 36 VDC
12 VDC
1`000 mA
87 %
THD 12-2413
15 VDC
800 mA
87 %
THD 12-2421
5 VDC
1`200 mA
83 %
THD 12-2422
12 VDC
500 mA
88 %
THD 12-2423
15 VDC
400 mA
88 %
THD 12-2409
2.5 VDC
3`500 mA
83 %
THD 12-2410
3.3 VDC
3`500 mA
85 %
THD 12-2411
5.1 VDC
2'400 mA
87 %
THD 12-2412
36 75 VDC
12 VDC
1`000 mA
87 %
THD 12-2413
15 VDC
800 mA
87 %
THD 12-2421
5 VDC
1`200 mA
83 %
THD 12-2422
12 VDC
500 mA
88 %
THD 12-2423
15 VDC
400 mA
88 %
Models
RoHS
compliant
Page 1 of 3
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 12 Series
12 Watt
Input Specifications
Input current (no load)
12 Vin models: t.b.a.
24 Vin models: t.b.a.
48 Vin models: t.b.a.
Input current (full load)
12 Vin; 2.5/ 3.3 & 5 Vout models: 1'670 mA typ.
12 Vin; other single output models: 1'605 mA typ.
12 Vin; other dual output models: 1'630 mA typ.
24 Vin; 2.5/ 3.3 & 5 Vout models: 840 mA typ.
24 Vin; other single output models: 800 mA typ.
24 Vin; other dual output models: 810 mA typ.
48 Vin; 2.5/ 3.3 & 5 Vout models: 420 mA typ.
48 Vin; other single output models: 400 mA typ.
48 Vin; other dual output models: 405 mA typ.
Input voltage variation (dv/dt)
5 V / ms, max.
(complies ETS 300 132 part. 4.4)
Start-up voltage / under voltage lockout
12 Vin models: 9 VDC / 8 VDC typ.
24 Vin models: 18 VDC / 16 VDC typ.
48 Vin models: 36 VDC / 33 VDC typ.
Surge voltage (100 msec. max.)
12 Vin models: 36 V max.
24 Vin models: 50 V max.
48 Vin models: 100 V max.
Conducted noise (input)
EN 55022 level A, FCC part 15, level A
ESD (input)
EN 61000-4-2, Perf. Criteria B
Fast Transient (input)
EN 61000-4-4, Perf. Criteria B
Surge (input)
EN 61000-4-5, Perf. Criteria B
Output Specifications
Voltage set accuracy
1.2 %
Regulation
Input variation Vin min. to Vin max.
0.5 % max.
Load variation 10 100 %
single output models: 1.0 % max. (1.5% max. for 2.5 Vout models)
dual output models balanced load: 1.2 % max.
dual output models unbalanced load: 5.0 % max.
Transient response setting time (25% load step change)
300 s
Ripple and noise (20 MHz Bandwidth)
85 mVpk-pk max.
Temperature coefficient
0.02 % /K
Output current limitation
150% typ. of Iout max., constant current
Short circuit protection
indefinite (automatic recovery)
Minimum load
10% of rated max current (operation at lower
load condition will not damage these converters, how ever, they may not meet all listed specifications)
Capacitive load
2.5 Vout & 3.3 Vout models: 2000 F max.
5 Vout / 5 Vout models: 2000 F max. / 1250 F max.
12 Vout /12 Vout models: 430 F max. / 200 F max.
15 Vout / 15 Vout models: 300 F max. / 120 F max.
General Specifications
Temperature ranges
Operating
40 C ... +85 C
Case temperature
+100 C max.
Storage
55 C ... +105 C
Derating
2.5%/K above 60C
Humidity (non condensing)
95 % rel H max.
Specifications can be changed without notice
Jenatschstrasse 1 CH-8002 Zurich Switzerland
Tel. +41 43 311 45 11 Fax +41 43 311 45 45 info@traco.ch www.tracopower.com
DC/DC Converters
THD 12 Series
12 Watt
General Specifications
Reliability, calculated MTBF
>2.75 Mio. h @ 40 C
(BELLCORE TR-MWT-000332 Case I: 50% Stress)
Thermal shock
MILSTB810D
Isolation voltage Input/Output
1`500 VDC
Isolation capacity Input/Output
1'200 pF max.
Switching frequency (fixed)
400 kHz typ. (Pulse width modulation PWM)
Safety standards (Operational Insulation)
UL 60950, EN 60950, IEC 60950
Safety approvals
UL/cUL File: E188913
Remote On/Off
ON:
3.0 ... 12 VDC or open circuit (referenced to -Vin)
OFF:
0 ... 1.2 VDC or short circuit pin 1 and pin 2/3
OFF idle current:
2.5 mA
Physical Specifications
Case material
copper, nickel plated
Baseplate material
non conductive FR4
Potting material
epoxy (UL94V-0 rated)
Weight
18 g (0.62 oz)
Soldering temperature
max. 265 C / 10 sec.
Outline Dimensions
Pin
Single
Dual
1
Remote On/Off Remote On/Off
2
Vin (GND)
Vin (GND)
3
Vin (GND)
Vin (GND)
9
No pin
Common
11
No con.
Vout
14
+Vout
+Vout
16
Vout
Common
22
+Vin (Vcc)
+Vin (Vcc)
23
+Vin (Vcc)
+Vin (Vcc)
Pin-Out
2.0
(0.08)
25.4
(1.0
)
20.3
(0.80)
2.54
(0.10)
31.8
(1.25)
10.2
15.24
(0.60)
9
11
22
23
2
3
16
14
Bottom view
15.24
(0.60)
5.0
8
2.5
3.8
Insulated Baseplate
(0.10)
(0.15)
(0.20)
(0.40)
1
Dimensions in [mm], () = Inch
Pin diameter 0.5 0.05 (0.02 0.002)
Tolerances 0.5 (0.02)
Pin pich tolerances 0.35 (0.014)
Page 3 of 3
Rev. 11/05
PDF 
ZIP