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DC/DC Converters
THL 25 Series, 25 Watt
Features
◆ Highest power density 25W converter!
Ultra compact design: 1.0” x 1.0” x 0.4”
◆ Shielded metal case with isolated
baseplate
◆ Wide 2:1 input voltage ranges
◆ Very high efficiency up to 90%
◆ Output voltage adjustable
◆ Remote On/Off control
◆ Operating temp. range –40°C to +80°C
and up to +85°C with heat-sink
◆ I/O isolation voltage 1500 VDC
◆ 3-year product warranty
The THL 25 series is the latest generation of dc-dc converter modules with highest
power density. The product achieves 25 Watt output power and comes in a metal
case with small dimensions of only 1.0”x 1.0”x 0.4”.
All models have a wide 2:1 input voltage range and precisely regulated output volt-
ages. High efficiency of up to 90% makes this product very reliable and applicable
in temperature ranges of up to +80°C or up to +85°C with optional mounted heat
sink. Typical applications are in mobile equipments, instrumentation, distributed
power architectures in communication and industrial electronics and everywhere
where space on the PCB is critical.
Order code Input voltage range Output voltage Output current max. Efficiency typ.
THL 25-1210 3.3 VDC 6000 mA 87 %
THL 25-1211 5.0 VDC 5000 mA 89 %
THL 25-1212 12 VDC 2090 mA 89 %
THL 25-1213 9 – 18 VDC 15 VDC 1670 mA 89 %
THL 25-1222 (12 VDC nominal) ±12 VDC ±1040 mA 89 %
THL 25-1223 ±15 VDC ±840 mA 89 %
THL 25-2410 3.3 VDC 6000 mA 88 %
THL 25-2411 5.0 VDC 5000 mA 90 %
THL 25-2412 12 VDC 2090 mA 90 %
THL 25-2413 18 – 36 VDC 15 VDC 1670 mA 90 %
THL 25-2422 (24 VDC nominal) ±12 VDC ±1040 mA 89 %
THL 25-2423 ±15 VDC ±840 mA 89 %
THL 25-4810 3.3 VDC 6000 mA 88 %
THL 25-4811 5.0 VDC 5000 mA 90 %
THL 25-4812 12 VDC 2090 mA 90 %
THL 25-4813 36 – 75 VDC 15 VDC 1670 mA 90 %
THL 25-4822 (48 VDC nominal) ±12 VDC ±1040 mA 89 %
THL 25-4823 ±15 VDC ±840 mA 89 %
Models
C
B
Scheme
IEC 60950-1
226037
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DC/DC Converters
THL 25 Series 25 Watt
Input Specifications
Input current at no load (at nominal input voltage) 12 Vin models: 80 mA typ.
24 Vin models: 55 mA typ.
48 Vin models: 40 mA typ.
Recommended input fuse (slow blow) 12 Vin models: 5000 mA
24 Vin models: 2500 mA
48 Vin models: 1250 mA
Start-up voltage 12 Vin models: 9 VDC (or lower)
24 Vin models: 18 VDC (or lower)
48 Vin models: 36 VDC (or lower)
Surge voltage (0.1 sec. max.) 12 Vin models: 25 V max.
24 Vin models: 50 V max.
48 Vin models: 100 V max.
Reflected input ripple current 12 Vin models: 80 mAp-p typ.
24 Vin models: 50 mAp-p typ.
48 Vin models: 30 mAp-p typ.
Conducted noise (input) EN 55022 class A with external L/C
EN 55022 class B with external filter
ESD
(electrostatic discharge)
EN 61000-4-2, air ±8 kV, contact ±6 kV,
perf. criteria A
Radiated immunity EN 61000-4-3, 10 V/m, perf. criteria A
Fast transient / surge (with external input capacitor) EN 61000-4-4, ±2 kV, perf. criteria A
EN 61000-4-5, ±1 kV perf. criteria A
external input capacitor:
Nippon chemi-con KY 220 µF, 100 V, ESR 48 mOhm
Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A
Output Specifications
Voltage set accuracy ±1 %
Output voltage adj. range ±10 % for single output models only.
Trim up via resistor between Trim and -Vout
Trim down via resistor between Trim and +Vout
resistor values see application note
Regulation – Input variation (Vmin – Vmax) 0.2 % max.
– Load variation single output models: 0.2 % max. (0 – 100 % load)
dual output models: 1.0 % max. (0 – 100 % balanced load)
–Cross regulation dual output models: 5.0 % max. (25 – 100 % asymmetrical load)
Minimum load not required
Ripple and noise (20 MHz bandwidth) 3.3 & 5.0 VDC models: 100 mVp-p typ.
12 & 15 VDC models: 150 mVp-p typ.
Temperature coefficient ±0.02 %/K
Output current limitation at 150 % of Iout max., hiccup
Short circuit protection indefinite, automatic recovery
Over voltage protection shutdown at +20% of nominal output
Transient response setting time 250 µs typ. (25% load step change)
Max. capacitive load 3.3 VDC models: 10’300 µF
5 VDC models: 6’800 µF
12 VDC models: 1’200 µF
15 VDC models: 750 µF
±12 VDC models: 680 µF (each output)
±15 VDC models: 380 µF (each output)
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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
THL 25 Series 25 Watt
General Specifications
Temperature ranges – Operating (natural convection 20 LFM) –40°C to +80°C (with derating)
– Operating with heat sink (natural convection 20 LFM) –40°C to +85°C (with derating)
– Case temperature +105°C max.
– Storage –50°C to +125°C
Load derating – without heat sink 2.0 %/K above +55°C
– with heat sink 2.5 %/K above +65°C
Thermal impedance – Natural convection 17.6°C/W
– Natural convection with heat sink 14.8°C/W
Humidity (non condensing) 95 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >313’300 h
Isolation voltage (60sec.) – Input/Output 1500 VDC
Isolation capacitance – Input/Output 2000 pF max.
Isolation resistance – Input/Output (500 VDC) >1000 MOhm
Remote On/Off – On: 3.5 ... 15 VDC or open circuit
– Off: 0 ... 1.2 VDC or short circuit pin 6 and pin 2
– Off idle current: 3 mA typ.
Switching frequency (fixed) 285 kHz typ. (pulse width modulation PWM)
Safety standards CAN/CSA-C22.2 No 60950-1-07, 2nd ed; A1:2011
ANSI/UL No. 60950-1, 2nd ed.; A1:2011
IEC 60950-1:2005 (2nd edition); Am 1:2009
EN 60950-1:2006/A11:2009/A1:2010/A12:2011
– Certification documents www.tracopower.com/overview/thl25
Environmental compliance – Reach www.tracopower.com/info/reach-declaration.pdf
– RoHS RoHS directive 2011/65/EU
Physical Specifications
Casing material metal
Baseplate non conductive FR4
Potting material epoxy (UL 94V-0 rated)
Weight 16.5 g (0.58 oz)
Soldering temperature max. 260°C / 10sec.
Supporting documents : www.tracopower.com/overview/thl25
Page 4 of 4
Specifications can be changed without notice! Make sure you are using the latest documentation, downloadable at www.tracopower.com
www.tracopower.com
DC/DC Converters
THL 25 Series 25 Watt
Outline Dimensions
Dimensions in [mm], () = Inch
Pin diameter ø 1.0 (0.04)
Pin pitch tolerances: ±0.25 (±0.01)
Tolerances: ±0.5 (±0.02)
Rev. July 12, 2018
Pin Single Dual
1+Vin (Vcc) +Vin (Vcc)
2–Vin (GND) –Vin (GND)
3+Vout +Vout
4Trim Common
5–Vout –Vout
6Remote On/Off
Pin-Out
Note:
The product label on converter has to be re-
moved before mounting the heat-sink.
For volume orders converters will be sup-
plied with mounted heat-sink. Please contact
factory for quotation.
Separate heat-sinks are only available for
prototypes and small quantity orders.
Order code: THL-HS1
(cont.: heat-sink, thermal pad, 2 clamps)
Material: Aluminum
Finish: Anodic treatment (black)
Weight: 4 g ( 0.14 oz) without converter
Thermal impedance after assembling: 15.8 K/W
31.0 (1.22) max.
16.3 (0.64)
17.5 (0.69)
max.
Converter
Heat-sink
Thermal pad
Clamp
25.4
25.4
Bottom view
20.32
7.62
6.0
(0.3)
(0.24)
(0.8)
(1.0)
(1.0)
5.08
(0.2)
10.2
(0.4)
1
2
3
6
5
2.5
(0.1)
4
10.16
(0.4)
2.5
(0.1)
10.16
(0.4)
Heat-Sink (Option)
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
TRACO Power:
THL 25-4822 THL 25-2422 THL 25-2413 THL 25-4823 THL 25-1212 THL 25-4811 THL 25-1223 THL 25-2411
THL 25-1222 THL 25-4810 THL 25-1211 THL 25-4813 THL 25-2410 THL 25-2412 THL 25-4812 THL 25-1213
THL 25-2423 THL 25-1210
