THERMAL SENSORS / CIRCUIT PROTECTORS
TECHNOLOGY OF TOMORROW
CIRCUIT PROTECTORS
FUSING RESISTORS
RADIAL TYPE
RF 26
STRUCTURE
1
2
3
4
5
6
7
Ceramic core
Fusible resistive metal film
Steel cap (Cu, Sn plated)
Termination
Welding joint
Insulation overcoating
Marking
IDENTIFICATION
PRODUCT CODE
COATING COLOR
MARKING
Color Dot
(R-value
and
tolerance)
RF26 B 2E
Blue
Products with Pb-free terminations
meet RoHS requirements
TYPE DESIGNATION (HOW TO ORDER)
*
Old Part No.
New Part No.
(Pb-free)
RF26
RF26
PRODUCT CODE
B
B
T.C.R.
B: ± 350 ppm/K
2E
2E
T
J
T
T
TAPING
Blank: Bulk
T: Taping
1R
A
PACKAGING
Blank: Bulk
A: Ammo
1R0
NOMINAL
RESISTANCE
3 digits
J
RESISTANCE
TOLERANCE
J: ±5%
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
POWER RATING TERMINATION RESISTANCE
2E: 0.25W
TOLERANCE
SURFACE
MATERIAL
T: Sn
L: Sn/Pb
*Please see “PACKAGING”
FEATURES
■
Works as a resistor in normal operation
■
Quick fusing protects the circuit against excessive overload
■
Flame retardant type with non-flammable paint recognized
by UL94 V-0
■
Automatic insertion is applicable
■
High density mounting and excellent in self-standing strength
with L-shape lead frame (lead pitch: 5.08mm)
■
Meets or exceeds IEC 60115-1, JIS C 5201-1, EIAJ RC-2125
■
Rated ambient temperature: +70°C
■
Operating temperature range: -40°C... +155°C
DIMENSIONS (mm)
TYPE
RF26 B 2E
L Max.
7.25
D Max.
2.54
P
5.08±0.3
H
5.0±1
h Max.
5.5
EXAMPLES OF FUSING CHARACTERISTICS
THERMAL SENSORS
CIRCUIT PROTECTORS
RATING
TYPE
T.C.R.
(ppm/K)
POWER
RATING*
DIELECTRIC
WITH-
STANDING
VOLTAGE
RES. RANGE
E24
J(±5%)
0.1Ω...1kΩ
10W
0.1Ω...0.18Ω
FUSING CHARACTERISTICS
FUSING POWER
7.5W
6.25W
3.75W
1Ω...4.7Ω
FUSING TIME
3W
5.1Ω...1kΩ
RF26 B 2E
±350
0.25W
250V
0.2Ω... 0.43Ω 0.47Ω...0.91Ω
30 sec. Max.
* For resistors operated in an ambient temperature of +70°C or above, the power rating shall be derated.
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
Revision: 5. Nov. 2004
