DC/DC Converter
THD 12 Series, 12 Watt
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Wide 2:1 input range
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Continuous short-circuit protection
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3-year product warranty
Very high efficiency up to 88%
I/O isolation 1500V
Input filter meets EN 55032, class A
Remote On/Off
Under voltage lock-out circuit
Shielded metal case with insulated
Baseplate
Operating temp. range –40°C to +85°C
(with derating)
UL 62368-1 IEC 62368-1
The THD 12 series is a range of high performance, isolated 12W DC/DC converters. They come in a low profile, DIP-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
Models
Order Code
Input Voltage
Range
THD 12-1209
THD 12-1210
THD 12-1211
THD 12-1212
THD 12-1222
THD 12-1223
THD 12-2409
THD 12-2410
THD 12-2411
THD 12-2412
THD 12-2422
THD 12-2423
THD 12-4809
THD 12-4810
THD 12-4811
THD 12-4812
THD 12-4822
THD 12-4823
www.tracopower.com
9 - 18 VDC
(12 VDC nom.)
18 - 36 VDC
(24 VDC nom.)
36 - 75 VDC
(48 VDC nom.)
Output 1
Output 2
Vnom
Imax
2.5 VDC
3.3 VDC
5.1 VDC
12 VDC
+12 VDC
+15 VDC
2.5 VDC
3.3 VDC
5.1 VDC
12 VDC
+12 VDC
+15 VDC
2.5 VDC
3.3 VDC
5.1 VDC
12 VDC
+12 VDC
+15 VDC
3'500 mA
3'500 mA
2'400 mA
1'000 mA
500 mA
400 mA
3'500 mA
3'500 mA
2'400 mA
1'000 mA
500 mA
400 mA
3'500 mA
3'500 mA
2'400 mA
1'000 mA
500 mA
400 mA
September 20, 2023
Vnom
Efficiency
Imax
–12 VDC
–15 VDC
500 mA
400 mA
–12 VDC
–15 VDC
500 mA
400 mA
–12 VDC
–15 VDC
500 mA
400 mA
typ.
82 %
84 %
86 %
86 %
87 %
87 %
83 %
85 %
87 %
87 %
88 %
88 %
83 %
85 %
87 %
87 %
88 %
88 %
Page 1 / 5
THD 12 Series, 12 Watt
Input Specifications
Input Current
- At no load
- At full load
Surge Voltage
Under Voltage Lockout
Reflected Ripple Current
Recommended Input Fuse
Input Filter
12 Vin models: 55 mA typ. (2.5 Vout model)
55 mA typ. (3.3 Vout model)
55 mA typ. (5.1 Vout model)
20 mA typ. (12 Vout model)
20 mA typ. (12 / -12 Vout model)
20 mA typ. (15 / -15 Vout model)
24 Vin models: 35 mA typ. (2.5 Vout model)
35 mA typ. (3.3 Vout model)
35 mA typ. (5.1 Vout model)
15 mA typ. (12 Vout model)
15 mA typ. (12 / -12 Vout model)
15 mA typ. (15 / -15 Vout model)
48 Vin models: 20 mA typ. (2.5 Vout model)
20 mA typ. (3.3 Vout model)
20 mA typ. (5.1 Vout model)
6 mA typ. (12 Vout model)
6 mA typ. (12 / -12 Vout model)
6 mA typ. (15 / -15 Vout model)
12 Vin models: 935 mA typ. (2.5 Vout model)
1'250 mA typ. (3.3 Vout model)
1'250 mA typ. (5.1 Vout model)
1'250 mA typ. (12 Vout model)
1'250 mA typ. (12 / -12 Vout model)
1'250 mA typ. (15 / -15 Vout model)
24 Vin models: 460 mA typ. (2.5 Vout model)
600 mA typ. (3.3 Vout model)
600 mA typ. (5.1 Vout model)
600 mA typ. (12 Vout model)
600 mA typ. (12 / -12 Vout model)
600 mA typ. (15 / -15 Vout model)
48 Vin models: 230 mA typ. (2.5 Vout model)
300 mA typ. (3.3 Vout model)
300 mA typ. (5.1 Vout model)
300 mA typ. (12 Vout model)
300 mA typ. (12 / -12 Vout model)
300 mA typ. (15 / -15 Vout model)
12 Vin models: 36 VDC max. (100 ms max.)
24 Vin models: 50 VDC max. (100 ms max.)
48 Vin models: 100 VDC max. (100 ms max.)
12 Vin models: 7 VDC min. / 8 VDC typ. / 8.8 VDC max.
24 Vin models: 15 VDC min. / 16 VDC typ. / 17.5 VDC max.
48 Vin models: 32 VDC min. / 33.5 VDC typ. / 35 VDC max.
20 mAp-p typ.
12 Vin models: 2'500 mA (slow blow)
24 Vin models: 1'250 mA (slow blow)
48 Vin models: 800 mA (slow blow)
(The need of an external fuse has to be assessed
in the final application.)
Internal Pi-Type
Output Specifications
Voltage Set Accuracy
±1.2% max.
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
www.tracopower.com
September 20, 2023
Page 2 / 5
THD 12 Series, 12 Watt
Regulation
- Input Variation (Vmin - Vmax)
- Load Variation (0 - 100%)
Ripple and Noise
Capacitive Load
- Cross Regulation
(25% / 100% asym. load)
- 20 MHz Bandwidth
- single output
- dual output
single output models: 0.2% max.
dual output models: 0.5% max.
single output models: 1% max. (2.5 Vout models)
0.5% max. (other models)
dual output models: 1% max. (Output 1)
1% max. (Output 2)
dual output models: 5% max.
2.5 Vout models:
3.3 Vout models:
5.1 Vout models:
12 Vout models:
12 / -12 Vout models:
15 / -15 Vout models:
Minimum Load
Temperature Coefficient
Start-up Time
Short Circuit Protection
Output Current Limitation
Overvoltage Protection
Transient Response
- Response Time
85 mVp-p typ.
2'000 µF max.
2'000 µF max.
2'000 µF max.
430 µF max.
200 / 200 µF max.
120 / 120 µF max.
Not required
±0.02 %/K max.
450 ms typ. (Power On)
5 ms typ. (Remote On)
Continuous, Automatic recovery
150% typ. of Iout max.
118 - 156% of Vout nom.
(depending on model)
3.9 VDC typ. (2.5 & 3.3 Vout models)
6.2 VDC typ. (5.1 Vout models)
15 VDC typ. (12 Vout models)
18 VDC typ. (15 Vout models)
250 µs typ. (75% to 100% Load Step)
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/thd12
PD 2
Not mains connected
- IT / Multimedia Equipment
- Certification Documents
Pollution Degree
Over Voltage Category
EMC Specifications
EMI Emissions
- Conducted Emissions
- Radiated Emissions
External filter proposal:
EMS Immunity
- Electrostatic Discharge
Air:
Contact:
- RF Electromagnetic Field
- EFT (Burst) / Surge
Ext. input component:
- Conducted RF Disturbances
- PF Magnetic Field
Continuous:
1 s:
EN 55032 class A (with external filter)
EN 55032 class B (with external filter)
EN 55032 class A (with external filter)
EN 55032 class B (with external filter)
www.tracopower.com/overview/thd12
EN 55024 (IT Equipment)
EN 55035 (Multimedia)
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, ±1 kV, perf. criteria A
Nippon chemi-con KY 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
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
www.tracopower.com
September 20, 2023
Page 3 / 5
THD 12 Series, 12 Watt
General Specifications
Relative Humidity
Temperature Ranges
Power Derating
- Operating Temperature
- Case Temperature
- Storage Temperature
- High Temperature
Cooling System
Remote Control
- Voltage Controlled Remote
- Off Idle Input Current
- Remote Pin Input Current
Altitude During Operation
Switching Frequency
Insulation System
Isolation Test Voltage
Isolation Resistance
Isolation Capacitance
Reliability
Washing Process
Environment
- Input to Output, 60 s
- Input to Case, 60 s
- Output to Case, 60 s
- Input to Output, 500 VDC
- Input to Output, 100 kHz, 1 V
- Calculated MTBF
- Vibration
- Thermal Shock
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
95% max. (non condensing)
–40°C to +85°C
+100°C max.
–55°C to +125°C
Depending on model
See application note: www.tracopower.com/overview/thd12
Natural convection (20 LFM)
On: 3.0 to 12 VDC or open circuit
Off: 0 to 1.2 VDC or short circuit
Refers to 'Remote' and '-Vin' Pin
2.5 mA max.
-0.5 to 0.5 mA
4'000 m max.
360 - 440 kHz (PWM)
400 kHz typ. (PWM)
Functional Insulation
1'600 VDC
1'600 VDC
1'600 VDC
1'000 MΩ min.
1'200 pF max.
2'060'000 h (MIL-HDBK-217F, ground benign)
According to Cleaning Guideline
www.tracopower.com/info/cleaning.pdf
MIL-STD-810F
MIL-STD-810F
Copper, Nickel plated
Non-conductive FR4 (UL 94 V-0 rated)
Epoxy (UL 94 V-0 rated)
Copper
Nickel (2 - 3 µm)
Tin (3 - 5 µm), matte
Metal Case
PCB Mount
THD (Through-Hole Device)
DIP24
Lead-Free Wave Soldering
245°C / 10 s max.
18 g
Thermal Impedance
- Case to Ambient
Environmental Compliance - REACH Declaration
20 K/W typ.
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).)
adb1ecd6-a47c-48d4-9904-1399f0bad769
- RoHS Declaration
- SCIP Reference Number
Supporting Documents
Overview Link (for additional Documents)
www.tracopower.com/overview/thd12
All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated.
www.tracopower.com
September 20, 2023
Page 4 / 5
THD 12 Series, 12 Watt
(0.10)
2.54
2.0
(0.08)
Outline Dimensions
Pinout
1
2
3
Bottom view
15.24
(0.60)
16
(0.20)
5.08
(1.0)
25.4
(1.25)
31.8
23
22
9
14
11
Pin
Single
Dual
1
Remote On/Off
Remote On/Off
2
–Vin (GND)
–Vin (GND)
3
–Vin (GND)
–Vin (GND)
9
NC
Common
–Vout
11
NC
14
+Vout
+Vout
16
–Vout
Common
22
+Vin (Vcc)
+Vin (Vcc)
+Vin (Vcc)
+Vin (Vcc)
23
3.8
10.22
2.54
(0.15)
(0.40)
(0.10)
Insulated baseplate
15.24
(0.6)
NC: Not connected
20.32
(0.8)
Dimensions in mm (inch)
Tolerances: x.x ±0.5 (±0.02)
x.xx ±0.25 (±0.01)
Pin Ø 0.5 ±0.1 (0.02 ±0.004)
© Copyright 2023 Traco Electronic AG
Specifications can be changed without notice.
www.tracopower.com
Rev. September 20, 2023
Page 5 / 5