LF1/4LCTTA2051F [KOA]
Fixed Resistor, Metal Film, 0.25W, 2050ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, 3010, RADIAL LEADED, ROHS COMPLIANT;
| 型号： | LF1/4LCTTA2051F |
| 厂家： | 
KOA SPEER ELECTRONICS, INC. |
| 描述： | Fixed Resistor, Metal Film, 0.25W, 2050ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, 3010, RADIAL LEADED, ROHS COMPLIANT 电阻器 |
| 文件： | 总2页 (文件大小：131K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
,
,
LF LFF RK26
radial metal film leaded resistors
EU
features
• Lead frame construction
• High density assembly and excellent self-standing strength
• Marking: Blue body color with color dot marking
for resistance and tolerance values
• Products with lead-free terminations meet EU RoHS
requirements. Pb located in glass material, electrode
and resistor element is exempt per Annex 1, exemption
5 of EU directive 2005/95/EC
dimensions and construction
Dimensions inches (mm)
L
D
Trimming Line
Ceramic Core
Type
LF1/8
L (max.) D (max.)
P
H
h (max.)
t
.197
(5.0)
.100 .008 .236 .039
(2.54 0.2) (6.0 1.0)
.200
(5.08)
.010
(0.25)
.118 .020
h
LF1/4
(3.0 0.5)
.295
.098
.200 .008
(7.5)
(2.5)
(5.08 0.2)
LF1/4L
LF1/2
.217 .020
(5.5 0.5)
Marking
Resistive
Film
End
Cap
.413
(9.6)
.300 .012
(7.62 0.3)
.217
(5.5)
.012
(0.3)
H
Insulation
Coating
Lead
Frame
.02 .004
(0.5 0.1)
t
LFF1/4
RK26B2E
.285
(7.25)
.100
(2.54)
.200 .012 .197 .039
(5.08 0.3) (5.0 1.0)
P
ordering information - LF, LFF
New Part #
LF
1/4
C
T
T
A
1000
D
Power
Rating
T.C.R.
(ppm/°C)
Termination
Material
Nominal
Resistance
Type
Taping
Packaging
Tolerance
LF
LFF
1/8: 0.125W
1/4: 0.25W
1/4L: 0.25W
1/2: 0.5W
C: 50
D: 100
L: 200
T: Sn
T: Taping
(1/8W,
1/4W only)
Ammo
(1/8, 1/4
only)
2%, 5%: 2 significant
figures + 1 multiplier
“R” indicates decimal
on value <10Ω
0.5%, 1%: 3 significant
figures + 1 multiplier
“R” indicates decimal
on value <100Ω
D: 0.5%
F: 1%
G: 2%
J: 5%
Blank: Bulk
ordering information - RK26
New Part #
RK26
B
2E
T
T
A
1003
F
T.C.R.
(ppm/°C)
Power
Rating
Termination
Material
Nominal
Resistance
Type
Taping
Packaging
Tolerance
RK26
B: 350
2E: 0.25W
T: Sn
T: Taping
Blank: Bulk
Ammo
2%, 5%: 2 significant
figures + 1 multiplier
“R” indicates decimal
on value <10Ω
F: 1%
G: 2%
J: 5%
0.5%, 1%: 3 significant
figures + 1 multiplier
“R” indicates decimal
on value <100Ω
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/17/08
113
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
,
,
LF LFF RK26
radial metal film leaded resistors
applications and ratings
Absolute
Maximum
Working
Voltage
Absolute
Maximum
Overload
Voltage
T.C.R.
(ppm/°C)
Max.
Resistance Range (Ω)
Rated
Ambient
Temperature
Operating
Temperature
Range
Part
Designation
Power
Rating
D 0.5%
E-96
F 1%
G 2%
E-24
J 5%
E-24
E-24,E-96
C: 50
LF1/8
0.125W
0.25W
0.5W
D: 100
L: 200
C: 50
45.3 - 562k 4.7 - 1M
1 - 1M
1 - 1M
1 - 1M
1 - 1M
1 - 1M
200V
250V
350V
400V
500V
700V
-55°C
to
+150°C
LF1/4
LF1/4L
D: 100
L: 200
C: 50
10 - 1M
10 - 1M
10 - 1M
10 - 1M
+70°C
LF1/2
D: 100
L: 200
C: 50
1 - 1M
—
-55°C
to
+155°C
LFF1/4
0.25W
0.25W
—
—
10 - 100k 10 - 100k
250V
500V
500V
700V
D: 100
B: 350
RK26B2E
100K - 22M 100K - 33M 100K - 33M
environmental applications
Derating Curve
100
80
60
LFF, RK26
40
LF
20
0
-60 -40 -20
-55
0
20 40 60 80 100 120 140 160
70
Ambient Temperature
(°C)
150155
Performance Characteristics
Parameter
Requirement
Test Method
Resistance
Within specified tolerance
Within specified T.C.R.
25°C
Room temperature +100°C
Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is less
T.C.R.
Overload (Short Time)
Resistance to Solder Heat
LF, LFF: 0.5%, RK26: 1%
LF: 0.25%, LFF: 0.5%, RK26: 1% 260°C 5°C, 10 seconds 1 second or 350°C 10°C, 3.5 seconds 0.5 second
LF: -55°C (30 minutes)/+25°C (10 minutes), +150°C (30 minutes)/+25°C
(10 minutes), 5 cycles; LFF, RK26: -55°C (30 minutes)/+25°C (10 minutes),
+155°C (30 minutes)/+25°C (10 minutes), 5 cycles
LF, LFF: 0.5%
RK26: 1%
Rapid Change of Temperature
Moisture Resistance
Endurance @ 70°C
LF: 1%, LFF: 2%, RK26: 5%
LF: 1%, LFF: 2%, RK26: 5%
40°C 2°C, 90-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C 3°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/29/08
114
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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