DC/DC Converter
THN 20WI Series, 20 Watt
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Ultra compact size: 1.0" x 1.0" x 0.4"
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Ultrawide 4:1 input voltage ranges
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I/O isolation voltage 1600 VDC
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3-year product warranty
Shielded metal casing with isolated
baseplate
Very high efficiency up to 90%
Output voltage adjustable
UL 62368-1 IEC 62368-1
Remote On/Off control
The THN 20WI series models are high performance DC/DC converters. They
Operating temp. range –40°C to +75°C achieve 20 W output power and come in a small size metal casing (1.0" x 1.0"
x 0.4"). The models feature an ultra-wide 4:1 input voltage range while the outand up to 85 °C with heat-sink
Input filter meets EN 55032 class A
without external components
put voltages are precisely regulated even under no load conditions. Highest efficiency of up to 90% makes this product very reliable and applicable in temperature ranges of up to 85°C. The low no-load input current characteristics
and the remote On/Off control make these converters an ideal solution for battery operated systems. Typical applications are in mobile equipment, instrumentation, distributed power architectures in communication and industrial
electronics and everywhere where space on the PCB is critical.
Models
Order Code
Input Voltage
Range
THN 20-2410WI
THN 20-2411WI
THN 20-2411WI-A1
THN 20-2412WI
THN 20-2413WI
THN 20-2415WI
THN 20-2422WI
THN 20-2423WI
THN 20-2425WI
THN 20-4810WI
THN 20-4811WI
THN 20-4811WI-A1
THN 20-4812WI
THN 20-4813WI
THN 20-4815WI
THN 20-4822WI
THN 20-4823WI
THN 20-4825WI
9 - 36 VDC
(24 VDC nom.)
18 - 75 VDC
(48 VDC nom.)
Output 1
Output 2
Vnom
Imax
3.3 VDC
5 VDC
5 VDC
12 VDC
15 VDC
24 VDC
+12 VDC
+15 VDC
+24 VDC
3.3 VDC
5 VDC
5 VDC
12 VDC
15 VDC
24 VDC
+12 VDC
+15 VDC
+24 VDC
4'500 mA
4'000 mA
4'000 mA
1'670 mA
1'330 mA
833 mA
833 mA
667 mA
417 mA
4'500 mA
4'000 mA
4'000 mA
1'670 mA
1'330 mA
833 mA
833 mA
667 mA
417 mA
Vnom
Efficiency
Imax
–12 VDC
–15 VDC
–24 VDC
833 mA
667 mA
417 mA
–12 VDC
–15 VDC
–24 VDC
833 mA
667 mA
417 mA
typ.
89 %
89 %
88 %
89 %
89 %
91 %
89 %
90 %
91 %
90 %
90 %
89 %
89 %
90 %
91 %
89 %
90 %
91 %
Options
THN-HS1
Note
- Optional Heat Sink: www.tracopower.com/products/thn-hs1.pdf
- Suffix -A1: Adjustable output up to 6 VDC, suitable for low ripple & noise applications in conjunction with an LDO regulator.
- ±24 Vout models: The output can also be used in serial circuit for single 48 VDC operation.
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November 30, 2022
Page 1 / 4
THN 20WI Series, 20 Watt
Input Specifications
Input Current
- At no load
24 Vin models:
48 Vin models:
24 Vin models:
48 Vin models:
24 Vin models:
48 Vin models:
Surge Voltage
Under Voltage Lockout
Reflected Ripple Current
Recommended Input Fuse
8 mA typ.
7 mA typ.
50 VDC max. (1 s max.)
100 VDC max. (1 s max.)
7.5 VDC min. / 8 VDC typ. / 8.8 VDC max.
15.5 VDC min. / 16 VDC typ. / 17.5 VDC max.
30 mAp-p typ.
24 Vin models: 4'000 mA (slow blow)
48 Vin models: 2'000 mA (slow blow)
(The need of an external fuse has to be assessed
in the final application.)
Internal Pi-Type
Input Filter
Output Specifications
Output Voltage Adjustment
See application note:
Voltage Set Accuracy
Regulation
- Input Variation (Vmin - Vmax)
- Load Variation (0 - 100%)
Ripple and Noise
(20 MHz Bandwidth)
- Cross Regulation
(25% / 100% asym. load)
- single output
- dual output
Capacitive Load
- single output
- dual output
single output models:
dual output models:
single output models:
dual output models:
dual output models:
3.3 Vout models:
5 Vout models:
12 Vout models:
15 Vout models:
24 Vout models:
12 / -12 Vout models:
15 / -15 Vout models:
24 / -24 Vout models:
3.3 Vout models:
5 Vout models:
12 Vout models:
15 Vout models:
24 Vout models:
12 / -12 Vout models:
15 / -15 Vout models:
24 / -24 Vout models:
Minimum Load
Temperature Coefficient
Start-up Time
Short Circuit Protection
Output Current Limitation
Overvoltage Protection
Transient Response
- Response Time
–10% to +20% (A1 & 24 Vout models)
±10% (other single models)
(By external trim resistor)
www.tracopower.com/overview/thn20wi
Output power must not exceed rated power!
±1% max.
0.2% max.
0.5% max.
0.2% max.
1% max. (Output 1)
1% max. (Output 2)
5% max.
75 mVp-p typ. (w/ 1µF X7R // 10µF TC)
75 mVp-p typ. (w/ 1µF X7R // 10µF TC)
75 mVp-p typ. (w/ 1µF X7R // 10µF TC)
75 mVp-p typ. (w/ 1µF X7R // 10µF TC)
75 mVp-p typ. (w/ 6.8µF X7R)
100 / 100 mVp-p typ. (w/ 1µF X7R // 10µF TC)
100 / 100 mVp-p typ. (w/ 1µF X7R // 10µF TC)
100 / 100 mVp-p typ. (w/ 4.7µF X7R)
7'000 µF max.
5'000 µF max.
850 µF max.
700 µF max.
220 µF max.
500 / 500 µF max.
350 / 350 µF max.
100 / 100 µF max.
Not required
±0.02 %/K max.
30 ms max.
Continuous, Automatic recovery
125 - 190% of Iout max.
150% typ. of Iout max.
112 - 164% of Vout nom.
250 µs typ. (25% Load Step)
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
www.tracopower.com
November 30, 2022
Page 2 / 4
THN 20WI Series, 20 Watt
Safety Specifications
Safety Standards
EN 60950-1
EN 62368-1
IEC 60950-1
IEC 62368-1
UL 60950-1
UL 62368-1
www.tracopower.com/overview/thn20wi
PD 2
OVC I
- IT / Multimedia Equipment
- Certification Documents
Pollution Degree
Over Voltage Category
EMC Specifications
EMI Emissions
- Conducted Emissions
- Radiated Emissions
EMS Immunity
External filter proposal:
Air:
Contact:
- Electrostatic Discharge
- RF Electromagnetic Field
- EFT (Burst) / Surge
Ext. input component:
- Conducted RF Disturbances
- PF Magnetic Field
Continuous:
1 s:
EN 55032 class A (internal filter)
EN 55032 class B (with external filter)
EN 55032 class A (internal filter)
EN 55032 class B (with external filter)
www.tracopower.com/overview/thn20wi
EN 61000-4-2, ±8 kV, perf. criteria A
EN 61000-4-2, ±6 kV, perf. criteria A
EN 61000-4-3, 10 V/m, perf. criteria A
EN 61000-4-4, ±2 kV, perf. criteria A
EN 61000-4-5, ±2 kV, perf. criteria A
220 µF, 100 V
EN 61000-4-6, 10 Vrms, perf. criteria A
EN 61000-4-8, 100 A/m, perf. criteria A
EN 61000-4-8, 1000 A/m, perf. criteria A
General Specifications
Relative Humidity
Temperature Ranges
Power Derating
Cooling System
Remote Control
Altitude During Operation
Switching Frequency
Insulation System
Isolation Test Voltage
Isolation Resistance
Isolation Capacitance
Reliability
Washing Process
Environment
95% max. (non condensing)
–40°C to +75°C
–40°C to +85°C (with Heat Sink)
+105°C max.
- Case Temperature
–55°C to +125°C
- Storage Temperature
Depending on model
- High Temperature
Depending on model (with Heat Sink)
See application note: www.tracopower.com/overview/thn20wi
Natural convection (20 LFM)
On: 3.0 to 15 VDC or open circuit
- Voltage Controlled Remote
Off: 0 to 1.2 VDC or short circuit
Refers to 'Remote' and '-Vin' Pin
2 mA typ.
- Off Idle Input Current
-0.5 to 1.0 mA
- Remote Pin Input Current
5'000 m max.
275 kHz typ. (PWM) (±10%, 3.3 & 5 Vout model)
330 kHz typ. (PWM) (±10%, other models)
Functional Insulation
1'600 VDC
- Input to Output, 60 s
1'000 VDC
- Input to Case, 60 s
1'000 VDC
- Output to Case, 60 s
1'000 MΩ min.
- Input to Output, 500 VDC
1'500 pF max.
- Input to Output, 100 kHz, 1 V
- Calculated MTBF
1'400'000 h (MIL-HDBK-217F, ground benign)
Allowed (hermetical product)
See Cleaning Guideline: www.tracopower.com/info/cleaning.pdf
MIL-STD-810F
- Vibration
MIL-STD-810F
- Thermal Shock
- Operating Temperature
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
www.tracopower.com
November 30, 2022
Page 3 / 4
THN 20WI Series, 20 Watt
Housing Material
Base Material
Potting Material
Pin Material
Pin Foundation Plating
Pin Surface Plating
Housing Type
Mounting Type
Connection Type
Footprint Type
Soldering Profile
Weight
Thermal Impedance
Copper, Nickel plated
Non-conductive FR4 (UL 94 V-0 rated)
Silicone (UL 94 V-0 rated)
Copper
Nickel (2 - 3 µm)
Tin (3 - 5 µm), matte
Metal Case
PCB Mount
THD (Through-Hole Device)
1" x 1"
265°C / 10 s max.
15 g
17.6 K/W typ.
14.8 K/W typ. (with Heat Sink)
www.tracopower.com/info/reach-declaration.pdf
REACH SVHC list compliant
REACH Annex XVII compliant
www.tracopower.com/info/rohs-declaration.pdf
Exemptions: 7a, 7c-I
(RoHS exemptions refer to the component
concentration only, not to the overall
concentration in the product (O5A rule).
The SCIP number is provided on request.)
- Case to Ambient
Environmental Compliance - REACH Declaration
- RoHS Declaration
Supporting Documents
Overview Link (for additional Documents)
www.tracopower.com/overview/thn20wi
Outline Dimensions
7.62
5.08
(0.3)
(0.2)
1
5.6
9.9
2.5
10.16
(0.22)
(0.39)
(0.1)
(0.4)
3
2.5
4
5
(0.1)
Bottom view
(1.0)
2
25.4
(0.8)
20.32
6
Pinout
Pin
Single
Dual
1
+Vin (Vcc)
+Vin (Vcc)
2
–Vin (GND)
–Vin (GND)
3
+Vout
+Vout
4
Trim
Common
5
–Vout
–Vout
6
Remote On/Off
Remote On/Off
10.16
(0.4)
25.4
(1.0)
Dimensions in mm (inch)
Tolerances: ±0.5 (±0.02)
Pin pitch tolerances ±0.25 (±0.01)
Pin diameter Ø 1.0 (0.04)
© Copyright 2022 Traco Electronic AG
Specifications can be changed without notice.
www.tracopower.com
Rev. November 30, 2022
Page 4 / 4