TOKEN
RMCA, RMCB Ceramic Resistors
Ceramic Composition
Resistors
Enhanced Performance for High Voltage Applications
- Ignition Non-Inductive (RMCA, RMCB)
Preview
The RMCA, RMCB Series MELF type of fixed ceramic
resistors from Token Electronics offers automotive
designers a compact solution for applications involving
high voltages, surges, high peak power, or high-energy
pulses. They offer enhanced performance in R-C snubber
circuits, high voltage power supplies, and inrush limiters.
Token’s RMCA, RMCB series now offers the industry a
direct replacement carbon composition resistor based on
a bulk resistive element comprising carbon in a ceramic
filler. Due to the need for higher peak voltages,
the RMCA, RMCB range is perfect for vehicle ignition
system applications.
The RMCA, RMCB Series conform to RoHS compliant and lead free. For customed designs, tighter tolerances,
non-standard technical requirements, or custom special applications, please contact our sales for more
information.
Ceramic Composition Resistor Construction :
Bulk ceramic resistors that consists of a clay, alumina, and ceramic filler that has been blended and
pressurized into a resistive core and then covered with a molded outer insulating core.
Replacement Carbon-Composition Resistors :
Design requirements for custom sizes, surface mount, or special footprints can be met easily.
In cases where several carbon-composition resistors have been used together in an array to achieve a
particular rating, they have been replaced with a single bulk ceramic resistor, frequently at a lower
installed cost.
Features
- Operating Temperature -40°C ~ 155°C.
- Resistance Tolerance K(±10%), M(±20%).
- Typical resistance range 470 ohm ~ 100 Kohm.
- Replaces 1 and 2 watt carbon composition resistors.
- Suitable for noise suppressor of engine ignition system.
- High peak power, Reliable with non-disconnection failure.
- Rated Wattage up 5W, meets high energy density demands.
Version 2010
http://www.token.com.tw/
Applications
- Inrush limiters
- R-C snubber circuits
- Vehicle ignition system
- High voltage power supplies
rfq token.com.tw
01 of 03
TOKEN
General Specifications (Unit: mm)
RMC-A Style
Silver Layer
RMCA, RMCB Ceramic Resistors
RMC-B Style
Cap
L
Model
Style
A
B
A
B
A
B
A
B
D
Rated Wattage
L
D
Dimensions (mm)
L
7 ± 1.5
9 ± 1.5
10 ± 1.5
11 ± 1.5
18 ± 1.5
19 ± 1.5
24 ± 2.0
25 ± 2.0
24 ± 2.0
25 ± 2.0
D
4.0 ± 0.4
4.0 ± 0.4
4.0 ± 0.4
4.6 ± 0.5
4.0 ± 0.4
4.6 ± 0.5
4.0 ± 0.4
4.6 ± 0.5
7.0 ± 0.5
7.6 ± 0.5
RMC
1
RMC
RMC
RMC
2
3
5
Electrical Characterisics
Item
Power Rating at 25°C (W)
Operating Temp. Range (°C)
RMCA, RMCB
1
2
3
5
-40 ~ 155
K(±10%), M(±20%)
1K ~ 56K
1K ~ 100K
350
400
-750 ~ 3300
-750 ~ 3300
-750 ~ 2600
-750 ~ 2600
15
20
10
10
Resistance Tolerance
Resistance Range (Ω)
Max. Working Voltage (V)
-40°C ~ 25°C
T.C.R (PPM/°C)
25°C~155°C
Max. Pulse Voltage (KV)
Moisture Resistance (%)
470 ~ 33K
300
-750 ~ 3300
-750 ~ 2600
8
10
470 ~ 33K
500
-750 ~ 3300
-750 ~ 2600
25
10
Note: Non-Inductive Performance:
1. Chemically inert and thermally stable, the resistors are inherently non-inductive because of their bulk ceramic construction,
which allows energy and power to be uniformly distributed through the entire ceramic resistor body with no film or wire to fail.
2. The bulk ceramic material also allows simple efficient resistor designs that enable the designer to minimize the resistor
package size while providing the required performance and reliability.
02 of 03
http://www.token.com.tw/
rfq token.com.tw
Version 2010
京公网安备 11010802033920号
EEWORLD
