Pulse Load Melf Resistors (RGM)

TOKEN
RGM Pulse Load MELF Resistors
Metal Glaze Film
Pulse Load
Melf Resistors
Pulse Load MELF (RGM) Provides
Maximum Thermal Compliance
Preview
Providing design engineers with a family of resistors designed
specifically for surge and pulse applications, Token Electronics’
family of power MELF resistors feature extended performance
capability with ratings up to 3W.
Consisting of the RGM16M, RGM17M, RGM18M, RGM72,
RGM73 and RGM74 Series resistors, the devices in the power
MELF family all use Token’s Metal Glaze resistive element on
ceramic substrates. The RGM Anti-Surge Melf Series feature metal
caps fitted on the terminals of the cylindrical resistor body to give
the devices exceptional thermal compliance.
The resistors in the power MELF family provide excellent thermal compliance as well as a variety of surge
capabilities. The rugged RGM18M Series resistors are rated up to 3W and provide maximum thermal
compliance, while the RGM72 and RGM73 Series resistors offer as much as three times the surge rating of
standard resistors, which equates to up to 10 times the surge rating of similar-sized flat thick film chip
resistors. The range of capabilities allows customers to select the best device to provide stable performance in
harsh environment applications.
The Metal Glaze thick film element on the RGM Series devices is fired at 1000°C to a solid ceramic substrate.
The resistors feature power ratings of 0.125W, 0.25W, 0.5W, 1W, 2W and 3W at 70°C. Resistance values range
from 50kΩ ~ 2GΩ with standard tolerance to ±0.5%, maximum voltage of up to 10000V and TCRs ±100ppm/°C.
Maximum operating temperature for the resistors is +155°C.
The RGM MELF Series is a perfect fit when an anti-surge resistor is required. Other major applications of
RGM resistors are: AC mains protection, isolation between primary/secondary circuits in TVs, voltage dividers,
ignition/switching circuit in electronic ballasts.
Token will also produce MELF devices outside these specifications to meet customer requirements. Contact us
with your specific needs.
Applications :
Applications :
- Lead (Pb)-free and RoHS compliant.
- Speciality metal glaze film technology.
- Power dissipation rating at 70°C up to 3W.
- Combine high resistance range with high voltage.
- Temperature coefficient: ±100ppm/°C, ±200ppm/°C.
- High pulse handling capability. DIN: 0207, 0411,
0617, 0823.
- Tolerance range: ±0.5% to ±10%; Resistance range:
50K Ω ~ 2G Ω.
- Electronic Ballast: Ignition, Switching Spark Circuit.
- Home Appliances: Control Module for Surge
Protection.
- Test & Measurement: Voltage Divider and Surge
Protection.
- CTV, CRT Monitor: Isolation Resistor, Mains
Protection, Discharge Path Resistor and Power
Factor Control (PFC). Power Supply (SMPS):
Voltage Divider, Isolation, PFC control, Mains
Protection and Discharge Path Resistor.
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TOKEN
RGM Pulse Load MELF Resistors
Dimensions & Recommended Soldering Bath Dimensions
L
D
D1
H
L1
Type
Dimension
Max.(mm)
Recommended
Soldering Bath
Dimension
(Unit: mm)
S
W
K
RGM72
RGM73
RGM74
RGM16M
RGM17M
RGM18M
L
2.2
3.5
5.5
5.9
8.6
11.6
L1
1.0
1.6
3.5
3.9
6.2
8.8
D
1.3
1.3
2.1
2.1
3.1
3.6
K
0.4
0.8
1.0
1.2
1.5
1.6
D1
D+0/D-0.15
D+0/D-0.25
D+0/D-0.5
D+0/D-0.5
D+0/D-0.5
D+0/D-0.5
S
1.0
1.6
2.6
2.8
5.6
8.2
W
2.0
2.5
2.5
2.8
3.2
4.0
H
2.0
2.5
2.5
2.8
3.8
4.5
RGM72
RGM73
RGM74
RGM16M
RGM17M
RGM18M
50k ~ 200M
50k ~ 200M
50k ~ 1G
50k ~ 1G
100k ~ 2G
50k ~ 2G
Characteristics
Type
Resistance range (Ω)
Resistance Tolerance
D(±0.5%); F(±1%); J(±5.0%); K(±10%)
Temperature coefficient
Rated dissipation (W) P70
±100ppm/°C; ±200ppm/°C
0.125
0.25
0.50
1.0
2.0
3.0
Operating voltage (V) Umax
400
800
1500
3000
6000
10000
Short time over load
voltage (V)
800
1500
3000
6000
10000
20000
Operating Temperature range
Endurance,
Max, resistance change at P70
ΔR/R max., after 1000h
-55°C ~ 155°C
50k Ω ~ 10M Ω 50k Ω ~ 10M Ω 50k Ω ~ 22M Ω
50k Ω ~ 22M Ω
≤1.50%
Insulation voltage
>500V
Insulation resistance
>1GΩ
02 of 03
50k Ω ~ 22M Ω 50k Ω ~ 22M Ω
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Version 2010
TOKEN
RGM Pulse Load MELF Resistors
How to Order
RGM16M

510K

J
TR


 Product type: RGM72, RGM73, RGM74, RGM16M, RGM17M, RGM18M
 Resistance Value:
Code
Resistance Value
51K
510K
5M1
51M
510M
51KΩ
510KΩ
5.1MΩ
51MΩ
510MΩ
 Resistance Tolerance (%)
Code
D
F
J
K
Resistance Tolerance
±0.5%
±1%
±5.0%
±10%
 Packaging
Code
T
P
Packaging
Taping Reel
Bulk
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Version 2010
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