TLRH
metal plate chip type low resistance resistors
EU
features
current
sense
• SMD Type of small size, low resistance
resistor for current detection
• Carrier metal plate inside, resistor of high radiation
of heat structure (3AW, 3AP)
• High reliability and performance with low T.C.R.
• Automatic mounting machines are applicable
• Suitable for reflow soldering
(2A: Not suitable for wave soldering)
• Products with lead-free terminations meet
EU RoHS requirements
• AEC-Q200 Tested
dimensions and construction
Resistance
Size
(Ω)
Code (Inch)
2A
L
TLRH 2A
(0805)
W
Sn Plating
Inner
Electrode
d
Resistive Ni Plating
Element
Protective
Coating
.014±.008
(0.35±0.20)
.030±.008
(0.75±0.20)
.010±.008
(0.25±0.20)
.020±.008
(0.50±0.20)
.071±.008
.248±.008 .126±.008 (1.8±0.20) .020±.008
(6.30±0.20) (3.20±0.20) .051±.008 (0.50±0.20)
40m~120m
(1.3±0.20)
6m~39m
100
L
80
W
Sn Plating
Inner
Electrode
t
Ni Plating
Protective Resistive
Coating
Element
TLRH 3AP
(2512)
.049±.008
(1.25±0.20)
.126±.008
(3.20±0.20)
t
Derating Curve
3AW
d
12m~100m .079±.008
(2.00±0.20)
TLRH 3AW 10m~270m .248±.008
(6.30±0.20)
(2512)
% Rated Power
t
Dimensions inches (mm)
W
d
L
3AW/3AP (40~120mΩ)
60
2A
40
3AP (6~39mΩ)
20
0
-80
Carrier
Metal Plate
Insulation
-60 -40 -20
-65
20 40 60 80 100 120 140 160 180
155 170
85 105
Terminal Part Temperature
(°C)
0
For resistors operated at a terminal part temperature of described for each size
or above, a power rating shall be derated in accordance with the derating curve.
Please refer to “Introduction of the derating curve based on the terminal part
temperature” in the beginning of our catalog before use.
ordering information
TLRH
Type
3AW
T
Power
Rating
2A (12~27mΩ): 0.5W
(33~50mΩ): 0.33W
(56~100mΩ): 0.25W
3AW: 2.0W
3AP: (6~39mΩ): 5.0W
(40~120mΩ): 4.0W
Terminal
Surface Material
T: Sn
TE
Packaging
2A: TD: 7" 4mm pitch
punched paper
3AW, 3AP: TE:
7" punched plastic
33L0
Nominal
Resistance
±1%: 4 digits
All values less than
0.1Ω (100m) are
expressed in mW
with “L” as decimal
Ex: 2mΩ = 2L00
2A: No marking
F
Tolerance
F: ±1%
For further information on packaging, please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
1/27/21
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
105
TLRH
metal plate chip type low resistance resistors
applications and ratings
Power
Rating
TLRH 2A
0.33W
current
sense
Part
Designation
T.C.R.
(x10-6/K)
Resistance
Range (Ω)
F: ±1% (E12)
±75
33m ~ 50m
-65°C~+155°C
12m ~ 27m
0.50W
4.0W
5.0W
+105°C
10m~22m
±75
2.0W
TLRH 3AP
Operating
Temperature
Range
56m~100m
0.25W
TLRH 3AW
Rated
Terminal Part
Temperature
Tolerance
±50
24m~270m
±50
40m, 47m, 50m~120m
±50
18m, 20m, 22m, 25m~39m
±75
6m, 7m, 8m, 9m, 10m, 12m
F: ±1%
-65°C~+170°C
85°C
environmental applications
One-Pulse Limiting Electric Power
TLRH3AW/TLRH3AP
10,000
1,000
100
10
1
.001
.01
.1
1
Pulse Duration
(ms)
10
100
One-Pulse Limiting Electric Power (W)
One-Pulse Limiting Electric Power (W)
TLRH2A
100,000
100,000
10,000
1,000
100
3AW
The maximum applicable voltage is equal to the
max. overload voltage.
Please ask us about the resistance characteristic
of continuous applied pulse.
The pulse endurance values are not assured
values, so be sure to check the products on
actual equipment when you use them.
10
3AP
1
.001
.01
1
.1
Pulse Duration
(ms)
10
100
Thermal Resistance
2A
TLRH
Resistance (Ω)
27m
50m
Rth (°C/W)
123
195
100m
280
5.2
3AW
3AP
10m
270m
18m
120m
TH + T=Hs
Terminal Part Temperature
TH :High
TM :Medium =ts
TL :Low
TM + T=Hs
Temperature
Size
Type
7.4
7.4
4.1
Rth=(Hs-ts)/Power
Regarding the temperature rise, the value of the temperature varies
per conditions and board for use since the temperature is measured
under our measuring conditions. Please refer to us before use.
T
T
TL + T=Hs
T
TH
TM
TL
Low
The temperature of the resistor will
increase the same ⊿T from the
standard terminal part temperature
regardlless of the ambient temperature
when the same power is applied. This
is because there is hardly any heat
dissipation from the resistor surface
to the ambient air.
High
Terminal Part Temperature
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Soldering Heat
Rapid Change
of Temperature
Moisture Resistance
Endurance at 105°C and Less
of Terminal Part Temperature
Low Temperature Exposure
High Temperature Exposure
Requirement ∆ R%
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
2A: ±0.05%
±0.5%
3AW,3AP: ±0.2%
±0.5%
±0.1%
2A:
±0.2%
±0.5%
3AW,3AP: ±0.1%
±0.1%
±0.5%
2A: ±0.45%
±1%
3AW,3AP: ±0.3%
±0.5%
±1%
±2%
2A: ±0.05%
3AW,3AP: ±0.02%
2A: ±0.5%
3AW,3AP: ±0.2%
3AP: ±0.2%
Test Method
25°C
+25°C/+100°C
2A, 3AW: Rated power x 2.5 for 5 seconds
3AP: Rated power x 8W for 5 seconds
260°C ±5°C, 10 seconds ~ 12 seconds
-55°C (15min.)/+150°C (15min.) 1000 cycles
85°C ±2°C, 85% RH, 1000 hours, 10% Bias
2A, 3AW, 3AP (40~120mΩ): 105°C, ±2°C; 3AP (6~39mΩ): 85°C ±2°C
1000 hours, 1.5 hours ON/0.5 hour OFF cycle
-65°C, 96 hours
2A, 3AP: +155°C, 1000 hours (6~12mΩ)
3AW, 3AP: +170°C±3°C, 1000 hours (18~120mΩ)
3AP: +170°C±3°C, 1000 hours (6~12mΩ)
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
106
1/27/21
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com