RF25CCT26AR30K [KOA]
Fixed Resistor - Fusible, 0.25W, 0.3ohm, 10% +/-Tol, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT;
| 型号： | RF25CCT26AR30K |
| 厂家： | 
KOA SPEER ELECTRONICS, INC. |
| 描述： | Fixed Resistor - Fusible, 0.25W, 0.3ohm, 10% +/-Tol, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT 电阻器 |
| 文件： | 总2页 (文件大小：430K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RF25CC
coat-insulated fusing resistors
(constant current fusing type)
EU
features
• Fuse within 60 seconds in case
of over-current
• Constant current fusing type
• Fuse at low magnification at 5 times or 10 times
of power rating
• Flame-retardant coating equivalent to UL94 V-0
• Marking: Blue body color, fifth color band green
for identification with color code marking
• Products meet EU RoHS requirements
dimensions and construction
Dimensions inches (mm)
L
l
Resistive Film
Type
Trimming Line
L
C Max.
D
d (Nominal)
l*
.248 .020
(6.3±±.ꢀ)
.280
(7.1)
.091 .012
(2.3±±.3)
.024
(±.6)
1.18 .118
(3±±3)
ød
RF25CC
* Lead length changes depending on taping and forming type.
Ceramic Core
Marking
Electrode Lead
Cap Wire
Flame Retardant Insulating Coating
D
C
ordering information
RF
25
C
C
T52
A
R68
K
Product
Code
Power
Rating
Terminal
Surface Material
Constant Current
Fusing Type
Taping &
Forming
Nominal
Resistance
Resistance
Tolerance
Packaging
25: 0.25W
3 digits
K: 10ꢀ
C:SnCu
T26, T52,
VTP, VTE,
L10A, M10X
A: Ammo
R: Reel
applications and ratings
Taping & Q’ty/AMMO
(pcs)
Power
Rating
Resistance
Range(Ω)
(E-24)
Resistance
Tolerance
Fusing Characteristics
Fusing Power
Dielectric
Withstanding
Voltage
Fusing Time
T26A
T52A
2.5W
0.1Ω
1.25W
0.11Ω - 0.91Ω
0.25W
0.1 - 0.91
K: 10ꢀ
60 sec Max.
250V
2,000
2,000
Rated Ambient Temperature: +70°C
Operating Temperature Range: -40°C - +155°C
Rated voltage = √Power Rating×Resistance value
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/29/11
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
154
RF25CC
coat-insulated fusing resistors
(constant current fusing type)
environmental applications
Derating Curve
100
For resistors operated at an ambient temperature of 70°C or above, a power
rating shall be derated in accordance with derating curve on the left.
80
60
40
20
0
-40 -20
0
20 40 60 80 100 120 140 160
70
155
Ambient Temperature
(°C)
Performance Characteristics
Performance Requirements
Test Items
Limit
∆R (% +0.05Ω)
Test Methods
Typical
Resistance
Within specified tolerance
—
25°C
Resistance to
Soldering Heat
Humidity
5ꢀ
5ꢀ
2.5ꢀ
2.5ꢀ
350°C 10°C, 3.5s 0.5s or 260°C 5°C, 10s 1s
40°C 2°C, 90ꢀ - 95ꢀRH, 1000h ꢁo Load
Endurance at 70°C
5ꢀ
2.5ꢀ
70°C 2°C, 1000h
1.5h Oꢁ/0.5h OFF cycle
Resistance to Solvent
ꢁo abnormality
in appearance. Marking
shall be easily legible.
—
The resistor shall be immersed in IPA for 30 sec.
Flame retardant
ꢁo evidence of flaming
or self-flaming.
—
Flame test: The test flame shall be applied and removed for
each 15 sec respectively to repeat the cycle 5 times.
Overload flame retardant:Power corresponding to 2, 4, 8, 16
and 32 times the power rating shall be applied for each 1min.
until dis-connection occurs.
Fusing Characteristics
I-R Characteristics
10
100
60
8
6
Fusing time
MAX. 3s
RF25CC
0.68ΩK
4
2
30
10
6
MAX. 60s
3
0.1
0.2
0.4
0.68
1.0
1.3
Fusing current (A)
(0.68W) (1.15W) (1.53W)
1.5
2.0
Resistance (Ω)
(2.72W)
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/30/10
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
155
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