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DC/DC Converters
TDR 3WI Series, 3 Watt
Features
Compact design in SMD or DIP package
Ultra wide 4:1 input voltage range
Fully regulated outputs
Low ripple and noise
No minimum load required
Temperature range –40°C to +85°C
I/O isolation 1600 VDC
Continuous short-circuit protection
Remote On/Off control
Fully RoHS compliant
3-year product warranty The TDR-3WI series is a family of compact 3 W DC/DC converters with 4:1 input
voltage ranges and tightly regulated output voltages even under no load conditions.
The product is available in SMD-package or in DIP-package. They work with high
efficiency over the full load range and come with a remote On/Off input.
The usability in temperature ranges of up to +8C, continuous short circuit protec-
tion and excellent immunity against environmental influences make these converters
very reliable.
A TDR-3WI converter is the ideal solution for space critical high end applications in
communication equipment, instrumentation and industrial electronics.
Order code
DIP models
Order code
SMD models Input voltage range Output voltage Output current
max. Efficiency typ.
TDR 3-1211WI TDR 3-1211WISM 5.0 VDC 600 mA 81 %
TDR 3-1212WI TDR 3-1212WISM 12 VDC 250 mA 82 %
TDR 3-1213WI TDR 3-1213WISM 4.5 – 18 VDC 15 VDC 200 mA 82 %
TDR 3-1222WI TDR 3-1222WISM (12 VDC nominal) ±12 VDC ±125 mA 82 %
TDR 3-1223WI TDR 3-1223WISM ±15 VDC ±100 mA 81 %
TDR 3-2411WI TDR 3-2411WISM 5.0 VDC 600 mA 80 %
TDR 3-2412WI TDR 3-2412WISM 12 VDC 250 mA 82 %
TDR 3-2413WI TDR 3-2413WISM 9 – 36 VDC 15 VDC 200 mA 82 %
TDR 3-2422WI TDR 3-2422WISM (24 VDC nominal) ±12 VDC ±125 mA 82 %
TDR 3-2423WI TDR 3-2423WISM ±15 VDC ±100 mA 81 %
TDR 3-4811WI TDR 3-4811WISM 5.0 VDC 600 mA 80 %
TDR 3-4812WI TDR 3-4812WISM 12 VDC 250 mA 83 %
TDR 3-4813WI TDR 3-4813WISM 18 – 75 VDC 15 VDC 200 mA 82 %
TDR 3-4822WI TDR 3-4822WISM (48 VDC nominal) ±12 VDC ±125 mA 82 %
TDR 3-4823WI TDR 3-4823WISM ±15 VDC ±100 mA 81 %
Models
UL 60950-1
www.tracopower.com Page 2 of 4
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
TDR 3WI Series 3 Watt
Input Specifications
Input current at no load (nominal input voltage) 12 Vin models: 40 mA typ.
24 Vin models: 20 mA typ.
48 Vin models: 13 mA typ.
Input current at full load (nominal input voltage) 12 Vin models: 330 mA typ.
24 Vin models: 165 mA typ.
48 Vin models: 80 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.
EMC emissions EN 55032 class A/B (with external components)
– Application note for filter class A/B proposal www.tracopower.com/overview/tdr3wi
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 EN 61000-4-4, ±2 kV, perf. criteria A
EN 61000-4-5, ±1 kV perf. criteria A
with external input capacitor e.g. Nippon
chemi-con KY 220 µF, 100 V, ESR 48 mOhm
Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A
Power frequency magnetic field EN 61000-4-8, 100 A/m, perf. criteria A
Reflected ripple current 12 Vin models: 80 mAp-p typ.
(measured with input filter according class A) 24 Vin models: 40 mAp-p typ.
48 Vin models: 30 mAp-p typ.
Output Specifications
Voltage set accuracy ±1 % max
Regulation – Input variation (Vin min. to Vin max.) 0.2 % max.
– Load variation (0 – 100 %) single output models: 1.0 % max.
dual output models: 1.0 % max. balanced load
– Load variation (10 – 90 %) single output models: 0.5 % max.
dual output models: 0.8 % max. balanced load
– Load cross regulation (25 / 100 %) 5.0 % max. (dual output models)
Minimum load 0 % of rated max. load
Temperature coefficient ±0.02 %/K
Ripple and noise (20 MHz bandwidth) 30 mVp-p typ.
Start up time – Power On 5 ms typ.
(constant resistive load) – Remote On 5 ms typ.
Transient response setting time (25 % load step change) 250 µs typ.
Short circuit protection continuous, automatic recovery
Capacitive load 5 Vout models: 1680 µF max.
12 Vout models: 820 µF max.
15 Vout models: 680 µF max.
±12 Vout models: 470 µF max. (each output)
±15 Vout models: 330 µF max. (each output)
General Specifications
Temperature ranges – Operating –40°C to +85°C
– Storage –55°C to +125°C
– Case temperature –40°C to +100°C
Load derating 3.3 %/K above +70°C
www.tracopower.com Page 3 of 4
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
TDR 3WI Series 3 Watt
Supporting documents:
www.tracopower.com/overview/tdr3wi and www.tracopower.com/overview/tdr3wism
General Specifications (continued)
Humidity (non condensing) 5 – 95 % rel. H max.
Thermal shock acc. MIL-STD-810F
Vibration acc. MIL-STD-810F
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >5.7 Mio h
Isolation voltage (60 s)Input/Output 1600 VDC
Isolation capacitance Input/Output 50 pF max.
Isolation resistance Input/Output (500 VDC) >1 GOhm
Safety approvals UL/cUL 60950 -1 www.ul.com -> certifications -> File e188913
– Certification documents www.tracopower.com/overview/tdr3wi
Switching frequency 100 kHz min.
Remote On/Off On: open or high impedance
Off: 2...4 mA current applied via 1KOhm resistor
Off stand by input current 2.5 mA max.
Environmental compliance – Reach
www.tracopower.com/products/reach-declaration.pdf
– RoHS RoHS directive 2011/65/EU
Pysical Specifications
Casing material non-conductive plastic (UL94V-0 rated)
Package weight 4.5 g ( 0.16 oz)
Soldering profile (for DIP models) 26C / 10 s max. (wave soldering)
Lead-free reflow solder process (for SMD models) J-STD-020D
Moisture sensivity level (for SMD models) J-STD-033C level 2a
Packaging – Tube 10 pcs packing unit
– Tape & Reel (only SMD models, add suffix –TR) 200 pcs packing unit
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
TDR 3WI Series 3 Watt
Outline Dimensions
Pin Single Dual
1–Vin (GND) –Vin (GND)
2Remote On/Off Remote On/Off
6NC Common
7NC –Vout
8+Vout +Vout
9–Vout Common
14 +Vin (Vcc) +Vin (Vcc)
Pin-Out
Rev. April 17. 2018
Dimensions in [mm], () = Inch
Tolerances: ±0.5 (±0.02)
Pin pich tolerances: ±0.25 (±0.01)
18.9
8.7
12.8
13.55
(0.74)
(0.35)
(0.533)
(0.50)
3.8
(0.15)
0.8(0.03)
1.3(0.05)
top view
14
9
8
1
2
6
7
2.542.54 10.161.8
(0.07)
(0.1) (0.4) (0.1)
0.25 (0.01)
0-15°
2.542.54 10.161.8
18.9
8.7 12.8
17.2
(0.07)
(0.1) (0.4)
(0.74)
(0.35)
(0.68)
(0.50)
(0.1)
1.0 (0.04)
1.5 (0.06)
top view
14
9
8
1
2
6
7
7.4 (0.29)
0.25 (0.01)
0-4°
1.2
(0.05)
DIP-Models
SMD-Models
NC = not to connect
Recommended Solder Pad
Dimension:
18.1 (0.71)
2.542.54 10.161.8
(0.07) (0.1) (0.4) (0.1)
1.8 (0.07)
2.0 (0.08)
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
TRACO Power:
TDR 3-1211WISM TDR 3-2411WISM TDR 3-2412WISM TDR 3-1223WISM TDR 3-4811WISM TDR 3-1213WISM
TDR 3-2413WISM TDR 3-4812WISM TDR 3-4823WISM TDR 3-4822WISM TDR 3-1222WI TDR 3-2422WI TDR 3-
2413WI TDR 3-2411WI TDR 3-1211WI TDR 3-4822WI TDR 3-2422WISM TDR 3-1223WI TDR 3-2412WI TDR 3-
4812WI TDR 3-1212WISM TDR 3-1222WISM TDR 3-2423WISM TDR 3-4813WISM TDR 3-4811WI TDR 3-4813WI
TDR 3-2423WI TDR 3-4823WI TDR 3-1213WI TDR 3-1212WI