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DC/DC Converter TDN 1WISM Series, 1 Watt
Models
• Compact SMD package
13,2 9,1 10,2 mm
• Fully regulated outputs
• I/O-isolation 1‘600 VDC
• Operating temperature range
–40°C to +90°C without derating
• Short circuit protection
• Remote On/Off
• 3-year product warranty
• Designed to meet UL 62368-1
(UL 60950-1)
The TDN 1WISM Series comprises 1 Watt fully regulated, high performance DC/
DC converters. They come in a compact cubical package of only 1.23 cm3. Full
load operation is reliable up tp 90°C environment temperature. With 1’600 VDC
I/O-isolation voltage, external On/Off, and short current protection they cover a
wide range of application when space is limited. The input of the converters is
designed for a wide voltage range (4:1) and minimum load is not required. The
functional I/O-isolation system is designed to meet IEC/EN 62368-1 with a test
voltage (60 s) of 1500 VDC.
Order code Input voltage Output voltage Output current max. Efficiency typ.
TDN 1-1210WISM 3.3 VDC 300 mA 77 %
TDN 1-1211WISM 5.0 VDC 200 mA 79 %
TDN 1-1219WISM 9.0 VDC 112 mA 79 %
TDN 1-1212WISM 12 VDC 90 mA 81 %
TDN 1-1213WISM 4.5 – 18 VDC 15 VDC 70 mA 81 %
TDN 1-1215WISM (12 VDC nominal) 24 VDC 45 mA 80 %
TDN 1-1221WISM ± 5.0 VDC ±100 mA 77 %
TDN 1-1222WISM ±12 VDC ±45 mA 80 %
TDN 1-1223WISM ±15 VDC ±35 mA 81 %
TDN 1-2410WISM 3.3 VDC 300 mA 76 %
TDN 1-2411WISM 5.0 VDC 200 mA 78 %
TDN 1-2419WISM 9.0 VDC 112 mA 79 %
TDN 1-2412WISM 12 VDC 90 mA 81 %
TDN 1-2413WISM 9 – 36 VDC 15 VDC 70 mA 81 %
TDN 1-2415WISM (24 VDC nominal) 24 VDC 45 mA 80 %
TDN 1-2421WISM ± 5.0 VDC ±100 mA 77 %
TDN 1-2422WISM ±12 VDC ±45 mA 80 %
TDN 1-2423WISM ±15 VDC ±35 mA 81 %
TDN 1-4810WISM 3.3 VDC 300 mA 75 %
TDN 1-4811WISM 5.0 VDC 200 mA 78 %
TDN 1-4819WISM 9.0 VDC 112 mA 79 %
TDN 1-4812WISM 12 VDC 90 mA 81 %
TDN 1-4813WISM 18 – 75 VDC 15 VDC 70 mA 81 %
TDN 1-4815WISM (48 VDC nominal) 24 VDC 45 mA 80 %
TDN 1-4821WISM ± 5.0 VDC ±100 mA 77 %
TDN 1-4822WISM ±12 VDC ±45 mA 80 %
TDN 1-4823WISM ±15 VDC ±35 mA 81 %
Models
Also see:
TDN 1WI, DIP version
www.tracopower.com/products/tdn1wi.pdf
TDN 1WISM Series, 1 Watt
www.tracopower.com Page 2 of 3
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Input Specifications
Input current no load 12 Vin models: 20 mA typ
24 Vin models: 10 mA typ.
48 Vin models: 5 mA typ.
Surge voltage (1 s max.) 12 Vin models: 25 V max.
24 Vin models: 50 V max.
48 Vin models: 100 V max.
Reflected ripple current 12 Vin models: 15 mAp-p typ.,
24 Vin models: 10 mAp-p typ.
48 Vin models: 5 mAp-p typ.
Conducted noise EN 55032 class A or B (
with external components)
– Filter proposal for complying to class A/B www.tracopower.com/overview/tdn1wism
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 all models: Nippon chemi-con KY 220µF/100V
Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A
Magnetic field immunity EN 61000-4-8,
100 A/m continuous, perf. criteria A
1000 A/m 1 second, perf criteria A
Output Specifications
Voltage set accuracy ±1 % max.
Regulation – Input variation 0.2 % max.
– Load variation 0 – 100 % 1 % max.
– Cross regulation - dual output: 5 % max. (asymmetrical load 25 % / 100 %)
Temperature coefficient ±0.02 %/K typ.
Ripple and noise (20 MHz Bandwidth) 30 mVp-p typ.
Start up time – Power ON 10 ms max.
(constant resistive load) – Remote ON 10 ms max.
Transient response (25% load step change) 500 μs typ.
Short circuit protection continuous, automatic recovery
Capacitive load – Single output 3.3 VDC models: 1680 µF max.
5.0 VDC models: 820 µF max.
9.0 VDC models: 630 µF max.
12 VDC models: 470 µF max.
15 VDC models: 330 µF max.
24 VDC models: 160 µF max.
– Dual output ±5.0 VDC models: 470 µF max. (each output)
±12 VDC models: 330 µF max. (each output)
+15 VDC models: 220 µF max. (each output)
General Specifications
Temperature ranges – Operating (natural convection: 20 LFM, 0.1m/s) –40°C to +90°C (without derating)
– Case temperature +105°C max.
– Storage temperature –55°C to +125°C
Derating 6.7%/K above 90°C
Humidity (non condensing) 5 – 95 % rel H max.
Isolation voltage – I/O isolation voltage (60 s) 1’600 VDC
Isolation capacitance 50 pF max.
Isolation resistance (@ 500 VDC) >1 GOhm
TDN 1WISM Series, 1 Watt
www.tracopower.com
© Copyright 2018 Traco Electronic AG Specifications can be changed without notice!
Page 3 of 3
Rev. May 28, 2018
General Specifications
Reliability, calculated MTBF (MIL-HDBK-217F at +25°C, ground benign) 8‘400‘000 h
Switching frequency 100 kHz min. (pulse frequency modulation)
Thermal shock & vibration MIL-STD-810F
Remote On/Off – On: open circuit or high impedance
– Off: 2 – 4 mA current applied via 1kOhm resistor
– Off idle current: 2.5 mA max.
Safety standards – Designed to meet (no certification) IEC/EN/UL 62368-1, UL 60950-1
Environmental compliance – Reach www.tracopower.com/products/reach-declaration.pdf
– RoHS RoHS directive 2011/65/EU
Moisture sensitivity level (MSL) IPC J-STD-033C Level 2
Physical Specifications
Casing material non-conducting plastic
Potting material silicone (UL 94V-0 rated)
Package weight 2.7 g (0 .10 oz)
Lead-free reflow solder process IPC J-STD-020E
Outline Dimensions
Pin Single Dual
1+Vin (Vcc) +Vin (Vcc)
2–Vin (GND) –Vin (GND)
4On/Off On/Off
5no con. –Vout
6–Vout Common
7+Vout +Vout
Pin-Out
Dimensions in [mm], () = Inch
Tolerances: x.x ±0.5 (±0.02)
Pin pitch tolerances ±0.25 (±0.01)
Pin dimension tolerance ±0.1 (±0.004)
Supporting Documents: www.tracopower.com/overview/tdn1wism
9.9
(0.39)
10.2
(0.40)
0.6
(0.024)
13.2
(0.52)
4.8
(0.19)
9.1
(0.36)
3 x 2.0
(3 x 0.08)
bottom view
14.2
(0.56)
1
2
4
5
6
7
0.25
(0.010)
