DC/DC Converter
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TMR 3WI Series, 3 Watt
Highest power density in SIP package
Ultra wide 4:1 input range
Small footprint: 21.8 x 9.2 mm
Temperature range –40° to +85°C
High efficiency up to 82%
Excellent load and line regulation
UL 62368-1 IEC 62368-1
The TMR 3WI series is a new family of isolated 3W DC/DC converters with regulated output, featuring ultra-wide 4:1 input voltage range. The product comes
in a ultra-compact SIP plastic package with a small footprint occupying only 2.0
cm² (0.3 square inch) of board space. An excellent efficiency allows –40° to
+85°C operation temperatures.
Further features include remote On/Off control and continuous short circuit
protection. The very compact dimensions of these converters make them an
ideal solution for many space critical applications in battery-powered equipment and instrumentation.
Short-circuit protection
I/O isolation 1600 VDC
Remote On/Off control
3-year product warranty
Models
Order Code
Input Voltage
Range
TMR 3-1210WI
TMR 3-1211WI
TMR 3-1212WI
TMR 3-1213WI
TMR 3-1221WI
TMR 3-1222WI
TMR 3-1223WI
TMR 3-2410WI
TMR 3-2411WI
TMR 3-2412WI
TMR 3-2413WI
TMR 3-2421WI
TMR 3-2422WI
TMR 3-2423WI
TMR 3-4810WI
TMR 3-4811WI
TMR 3-4812WI
TMR 3-4813WI
TMR 3-4821WI
TMR 3-4822WI
TMR 3-4823WI
www.tracopower.com
4.5 - 18 VDC
(12 VDC nom.)
9 - 36 VDC
(24 VDC nom.)
18 - 75 VDC
(48 VDC nom.)
Output 1
Output 2
Vnom
Imax
3.3 VDC
5 VDC
12 VDC
15 VDC
+5 VDC
+12 VDC
+15 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
+5 VDC
+12 VDC
+15 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
+5 VDC
+12 VDC
+15 VDC
700 mA
600 mA
250 mA
200 mA
300 mA
125 mA
100 mA
700 mA
600 mA
250 mA
200 mA
300 mA
125 mA
100 mA
700 mA
600 mA
250 mA
200 mA
300 mA
125 mA
100 mA
November 30, 2022
Vnom
Efficiency
Imax
–5 VDC
–12 VDC
–15 VDC
300 mA
125 mA
100 mA
–5 VDC
–12 VDC
–15 VDC
300 mA
125 mA
100 mA
–5 VDC
–12 VDC
–15 VDC
300 mA
125 mA
100 mA
typ.
74 %
78 %
80 %
80 %
80 %
80 %
80 %
75 %
80 %
82 %
82 %
79 %
81 %
81 %
74 %
80 %
81 %
81 %
79 %
81 %
81 %
Page 1 / 4
TMR 3WI Series, 3 Watt
Input Specifications
Input Current
- At no load
12 Vin models:
24 Vin models:
48 Vin models:
12 Vin models:
24 Vin models:
48 Vin models:
12 Vin models:
24 Vin models:
48 Vin models:
- At full load
Surge Voltage
Recommended Input Fuse
Input Filter
40 mA typ.
25 mA typ.
15 mA typ.
340 mA max.
170 mA max.
85 mA max.
36 VDC max. (100 ms max.)
50 VDC max. (100 ms max.)
100 VDC max. (100 ms max.)
(The need of an external fuse has to be assessed
in the final application.)
Internal Capacitor
Output Specifications
Voltage Set Accuracy
Regulation
- Input Variation (Vmin - Vmax)
- Load Variation (5 - 100%)
Ripple and Noise
Capacitive Load
- Cross Regulation
(25% / 100% asym. load)
- 20 MHz Bandwidth
- single output
- dual output
Minimum Load
Temperature Coefficient
Start-up Time
Short Circuit Protection
Transient Response
±1% max.
0.2% max.
0.2% max.
0.5% max.
1% max. (Output 1)
1% max. (Output 2)
dual output models: 5% max.
single output models:
dual output models:
single output models:
dual output models:
3.3 Vout models:
5 Vout models:
12 Vout models:
15 Vout models:
5 / -5 Vout models:
12 / -12 Vout models:
15 / -15 Vout models:
- Response Time
30 mVp-p max.
3'300 µF max.
1'680 µF max.
820 µF max.
680 µF max.
1'000 / 1'000 µF max.
470 / 470 µF max.
330 / 330 µF max.
Not required
±0.02 %/K max.
30 ms typ.
Continuous, Automatic recovery
250 µs typ. (25% 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/tmr3wi
- IT / Multimedia Equipment
- Certification Documents
EMC Specifications
EMI Emissions
- Conducted Emissions
- Radiated Emissions
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)
External filter proposal: www.tracopower.com/overview/tmr3wi
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
TMR 3WI Series, 3 Watt
EMS Immunity
- Electrostatic Discharge
- RF Electromagnetic Field
- EFT (Burst) / Surge
- Conducted RF Disturbances
- PF Magnetic Field
Air: EN 61000-4-2, ±8 kV, perf. criteria A
Contact: 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
Ext. input component: Nippon chemi-con KY, 100 µF / 110 mOhm
EN 61000-4-6, 10 Vrms, perf. criteria A
Continuous: EN 61000-4-8, 100 A/m, perf. criteria A
General Specifications
Relative Humidity
Temperature Ranges
95% max. (non condensing)
–40°C to +85°C
+100°C max.
–55°C to +125°C
Power Derating
Depending on model
See application note: www.tracopower.com/overview/tmr3wi
Cooling System
Natural convection (20 LFM)
Remote Control
On: open circuit
- Current Controlled Remote
Off: 2 to 4 mA current (internal 1 kΩ resistor)
External circuit proposal: www.tracopower.com/info/current-remote.pdf
2.5 mA max.
- Off Idle Input Current
Altitude During Operation
5'000 m max.
Switching Frequency
100 kHz min. (RCC)
Insulation System
Functional Insulation
Isolation Test Voltage
1'600 VDC
- Input to Output, 60 s
Isolation Resistance
1'000 MΩ min.
- Input to Output, 500 VDC
Isolation Capacitance
200 pF max.
- Input to Output, 100 kHz, 1 V
Reliability
- Calculated MTBF
3'400'000 h (MIL-HDBK-217F, ground benign)
Washing Process
Allowed (hermetical product)
See Cleaning Guideline: www.tracopower.com/info/cleaning.pdf
Environment
MIL-STD-810F
- Vibration
MIL-STD-810F
- Thermal Shock
Housing Material
Non-conductive Plastic (UL 94 V-0 rated)
Potting Material
Silicone (UL 94 V-0 rated)
Pin Material
Copper
Pin Foundation Plating
Nickel (2 - 3 µm)
Pin Surface Plating
Tin (3 - 5 µm), matte
Housing Type
Plastic Case
Mounting Type
PCB Mount
Connection Type
THD (Through-Hole Device)
Footprint Type
SIP8
Weight
4.8 g
www.tracopower.com/info/reach-declaration.pdf
Environmental Compliance - REACH Declaration
REACH SVHC list compliant
REACH Annex XVII compliant
www.tracopower.com/info/rohs-declaration.pdf
- RoHS Declaration
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.)
- Operating Temperature
- Case Temperature
- Storage Temperature
- High Temperature
Supporting Documents
Overview Link (for additional Documents)
www.tracopower.com/overview/tmr3wi
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
TMR 3WI Series, 3 Watt
Outline Dimensions
3
5
6
7
8
(0.36)
9.2
2
3.2
1
(0.13)
Bottom view
0.25 (0.01)
Pinout
0.5 (0.02)
Pin
Single Output
Dual Output
1
–Vin (GND)
–Vin (GND)
2
+Vin (Vcc)
+Vin (Vcc)
3
Remote
Remote
5
NC
NC
6
+Vout
+Vout
7
–Vout
Common
8
NC
–Vout
2.0 2.54 2.54
5.08
(0.1)
(0.2)
(0.08
(0.1)
11.1 (0.44)
(0.16)
4.0
0.5 (0.02)
NC: No Connection
2.54 2.54 2.54
(0.1)
21.8
(0.1)
(0.1)
(0.86)
Dimensions in mm (inch)
Ø 0.5 ±0.05 (0.02 ±0.002)
Pin diameter
±0.5 (±0.02)
Tolerances
Pin pitch tolerance ±0.2 (±0.008)
© Copyright 2022 Traco Electronic AG
Specifications can be changed without notice.
www.tracopower.com
Rev. November 30, 2022
Page 4 / 4
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