Precision Melf Resistors
(RJM)
Metal-Film (MELF RJM) Resistors Offer More Design Options Preview
RJM professional thin film MELF resistors (Cylindrical Resistors) are the perfect choice for most fields of modern professional electronics where reliability and stability is of major concern.
RJM resistors combine the proven reliability of professional MELF products with a most advanced level of precision and stability first achieved with axial thin film high precision resistors.
This unique combination makes the product perfectly suited for all applications with outstanding requirements towards reliable precision and stability.
The typical applications in the fields of telecommunication, automotive and medical equipment reflect the outstanding level of proven reliability.
RJM MELF equate Vishay, Ohmite, Caddock, IRC, EBG, KAO, Panasonic Precision Devices with more competitive price and fast delivery.
Contact us with your specific needs.
Features :
- DIN: 0102, 0204, 0207, 0411.
- Pure Sn termination on Ni barrier layer.
- Very high ratio of performance to price.
- High precision tolerance down to ± 0.05 %.
- Force fitted steel caps, tin plated on nickel barrier.
- Superior overall stability, most advanced thin film technology.
- TCR down to ± 5ppm/°C, wide resistance range: 0.1Ω to 22MΩ.
- Compatible with lead (Pb)-free and lead containing soldering processes.
Applications :
- Measuring and calibration equipment.
- Industrial process control systems.
- Space and aircraft electronics.
- Test and measurement.
- Medical electronics.
- Telecom.
Precision Melf (RJM) Dimensions & Recommended Soldering Bath Dimensions
 Precision Melf Resistors (RJM) Dimensions Recommended Soldering Bath (RJM) Dimensions |
|
| Type |
RJM72P |
RJM73S |
RJM73P |
RJM74S |
RJM74P |
RJM16M |
RJM17M |
RJM18M |
| Metric type |
DIN: 0102 |
DIN: 0204 |
DIN: 0207 |
DIN: 0411 |
| Dimension (Unit: mm) |
L(±0.3) |
2.2 |
3.5 |
5.7 |
6.0 |
8.7 |
11.8 |
| L1(±0.3) |
1.0 |
1.6 |
2.9 |
3.3 |
4.9 |
8.1 |
| D(±0.3) |
1.3 |
1.3 |
2.1 |
2.1 |
3.1 |
3.6 |
| K(±0.2) |
0.4 |
0.8 |
1.3 |
1.3 |
1.8 |
1.8 |
| D1(±0.1) |
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 |
Recommended Soldering Bath
Dimensions (Unit: mm) |
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 |
Precision Melf (RJM) Characteristics
| Type |
RJM72P |
RJM73S |
RJM73P |
RJM74S |
RJM74P |
RJM16M |
RJM17M |
RJM18M |
| Metric type |
DIN: 0102 |
DIN: 0204 |
DIN: 0207 |
DIN: 0411 |
| Rated dissipation P70 |
0.125W |
0.125W |
0.25W |
0.25W |
0.50W |
1.0W |
2.0W |
3.0W |
| Resistance range (Ω) |
10 ~ 1M |
0.1 ~ 10M |
0.1 ~ 22M |
0.1 ~ 22M |
| Resistance tolerance (%) |
J ( ±5 ); F ( ±1 ); D ( ±0.5 ); C ( ±0.25 ); B ( ±0.10 ); A5 ( ±0.05 ) |
| Temperature coefficient (ppm/°C) |
C2 ( ±50 ); C3 ( ±25 ); C5( ±15 ); C6 ( ±10 ); C7 ( ±5 ) |
| Climatic category (LCT/UCT/days) |
55 / 125 / 56 |
| Operating voltage Umax |
200V |
200V |
250V |
250V |
300V |
350V |
400V |
450V |
| Temperature range |
-55°C to 125°C |
| Insulation voltage (V) |
300 |
300 |
300 |
300 |
600 |
700 |
800 |
900 |
| Insulation resistance |
>1GΩ |
Notice: Resistance out of range, tolerance and temperature coefficient match are under request. RJM72 is still in trial production.
Precision Melf Resistors (RJM) Order Codes
| RJM74P |
10R |
D |
C6 |
P |
| 1 | 2 | 3 | 4 | 5 |
| Part Number |
| RJM72P |
| RJM73S |
| RJM73P |
| RJM74S |
| RJM74P |
| RJM16M |
| RJM17M |
| RJM18M |
|
| Resistance Value (Ω) |
| 0R1 |
0.1Ω |
| 10R |
10Ω |
| 100R |
100Ω |
| 1K |
1KΩ |
| 10K |
10KΩ |
| 100K |
100KΩ |
| 1M |
1MΩ |
| 10M |
10MΩ |
|
| Resistance Tolerance (%) |
| J |
±5% |
| F |
±1% |
| D |
±0.5% |
| C |
±0.25% |
| B |
±0.10% |
| A5 |
±0.05% |
|
| Temperature coefficient (PPM/°C) |
| C2 |
±50ppm/°C |
| C3 |
±25ppm/°C |
| C5 |
±15ppm/°C |
| C6 |
±10ppm/°C |
| C7 |
±5ppm/°C |
|
| Package |
| P |
Bulk |
| TR |
Taping Reel |
|
