RF25CT52A100J [KOA]
coat-insulated fusing resistor; 外套绝缘电阻熔断
| 型号： | RF25CT52A100J |
| 厂家： | 
KOA SPEER ELECTRONICS, INC. |
| 描述： | coat-insulated fusing resistor |
| 文件： | 总2页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RF
coat-insulated fusing resistor
EU
features
• Functions as a resistor in normal condition
• Quick fusing protects circuit from excessive
overload at an abnormal time
• Flame-retardant coating equivalent to UL94 V-0
• Marking: Blue body color with color code marking
• Products meet EU RoHS requirements
dimensions and construction
Dimensions inches (mm)
C Max. d(Nominal)
L
l
Type
RF16
RF25
RF50
RF1
l*
L
D
+.010
Resistive Film
Trimming Line
.125 .00ꢀ
(3.2±±.2)
.24ꢀ .020
(6.3±±.5)
.335 .020
(8.5±±.5)
.354 .039
(9.±±1.±)
.134
(3.4)
.461...
.01ꢀ
(±.45)
−0
+.25
(1.7
)
−±
ød
.2ꢀ0
(7.1)
.091 .012
(2.3±±.3)
.024
(±.6)
.374
(9.5)
.11ꢀ .012
(3.±±±.3)
1.1ꢀ .11ꢀ
(3±±3)
Ceramic Core
Marking
Electrode Lead
Cap Wire
.437
(11.1)
.13ꢀ .020
(3.5±±.5)
.031
Flame Retardant Insulating Coating
D
(±.8)
.610 .039
(15.5±1.±)
.709
(18.±)
.236 .039
(6.±±1.±)
C
RF2
* Lead length changes depending on taping and forming type.
ordering information
RF
25
C
T52
A
100
J
Power
Rating
Terminal
Surface Material
Taping &
Forming
Nominal
Resistance
Resistance
Tolerance
Product
Code
Packaging
16: 0.17W
25: 0.25W
50: 0.5W
1: 1W
C: SnCu
3 digits
J: 5ꢁ
See table below
A: Ammo
R: Reel
2: 2W
ratings
Fusing Characteristics
Fusing Power
Type
Dielectric
Withstanding
Voltage
Power
Rating
Resistance
Range
E24
T.C.R.
×10−6/K
Fusing
Time
J: 5ꢀ
3W
1Ω - 4.7Ω
2.5W
5.1Ω - 1kΩ
3.75W
1Ω - 4.7Ω
2.4kΩ - 10kΩ
7.5W
0.47Ω - 2Ω
1.1kΩ - 15kΩ
15W
60 sec
Max.
RF16C
RF25C
0.17W
0.25W
1.0 - 1k
—
—
—
—
250V
300V
10W
7.5W
6.25W
0.47 - 0.91Ω
3W
5.1Ω - 2.2kΩ
0.1 - 10k
—
—
—
0.1 - 0.1ꢀΩ 0.2 - 0.43Ω
1000:
R≤4.7Ω
12.5W
0.1 - 0.43Ω
6W
2.2Ω - 1kΩ
RF50C
0.5W
0.1 - 15k
—
—
30 sec
Max.
350:
R≥5.1Ω
30W
0.1 - 0.1ꢀΩ
25W
0.2 - 0.43Ω
12W
2.2Ω - 1kΩ
RF1C
RF2C
1W
2W
0.1 - 10k
1.0 - 3k
—
—
0.47Ω - 2Ω
1.1kΩ - 10kΩ
30W
350V
600V
36W
1Ω - 3.6Ω
24W
3.9Ω - 1kΩ
—
—
1.1kΩ - 3kΩ
Rated Ambient Temperature: +70°C
Operating Temperature Range: −40 – +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
RF
coat-insulated fusing resistor
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
∆R (ꢀ +0.05Ω)
Test Items
Limit
Test Methods
Typical
Resistance
Within specified
tolerance
—
25°C
T.C.R.
Within specified T.C.R.
—
Room temperature +100°C
Rated voltage × 2.5 for 5 seconds
350°C 10°C, 3.5s 0.5s or 260°C 5°C, 10s 1s
−40°C (30 min.)/ +ꢀ5°C (30 min.) 5 cycles
Overload (Short Time)
1ꢁ
1ꢁ
1ꢁ
5ꢁ
5ꢁ
0.5ꢁ
0.5ꢁ
0.5ꢁ
2.5ꢁ
2.5ꢁ
—
Resistance to
Soldering Heat
Rapid Change
of Temperature
Moisture Resistance
Endurance at 70°C
Resistance to Solvent
40°C 2°C, 90ꢁ - 95ꢁ RH, 1000 hours
1.5h ON/0.5h OFF cycle
70°C 2°C, 1000 hours
1.5h ON/0.5h OFF cycle
No abnormality in
The resistor shall be immersed in IPA for 30 sec.
appearance. Marking
shall be easily legible.
Flame retardant
No evidence of flaming
or self-flaming.
—
Flame test : The test flame shall be applied and removed
for each 15 sec respsctively to repeat the cycle 5 times.
Overload flame retardant: Power corresponding to 2, 4, ꢀ, 16
and 32 times the power rating shall be applied for each 1min.
until disconnection occurs.
Fusing Characteristics
RF16 10Ω
RF25 10Ω
RF50 10Ω
RF1 10Ω
RF2 10Ω
100
60
30
10
6
3
1
×5
×10 ×15 ×20
×5
×10 ×15 ×20
×5
×10 ×15 ×20
×5
×10 ×15 ×20
×5
×10 ×15 ×20
Magnification of Power Rating
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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