Melf Precision Resistors - Direct Electronics

Ultra Precision Resistors Index
RJM Series - Precision Coating MELF Resistor
RJ Series - 5~100 PPM, Metal Film Precision
NE Series - Tolerance 5.00%~0.05%, High Precision Low ohmic Resistors
RE Series - Coating Precision Low TCR PPM 5~50, Tolerance 1.00%~0.02%
EE Series - PPM 5~50, Moulding Ultra Precision Resistor
RN Series - MIL-PRF-55182 Moulding Precision PPM 25~100
UAR Series - Moulding High Precision Low TCR PPM 3~15
UPR Series - Radial Precision Network Low TCR PPM 2~25
UPSC Series - Tolerance 0.10%~0.01%, PPM 2~25, Precision Network
UPRND Series - Parellel Dip Precision Network PPM 2~50
UPRNS Series - Serial Dip Precision Network PPM 2~50

Features
－ Advanced thin film technology.
－ Low TCR:lower than ±5ppm/°C.
－ Tolerance up to ±0.05%.
－ Power dissipation rating up to 5W.
－ Excellent overall stability: Class 0.10.
－ Wide resistance range: 0.1Ω to 22MΩ.
－ Very high ratio of performance to price.

Quick Reference Data

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 U_max		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
Dimension (mm)	L(±0.2)	2.2	3.5		5.5		5.9	8.6	11.6
	L1(±0.2)	1.0	1.6		3.5		3.9	6.2	8.8
	D(±0.2)	1.3	1.3		2.1		2.1	3.1	3.6
	K(±0.1)	0.4	0.8		1.0		1.2	1.5	1.6
	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
Soldering bath (recomanded) (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


Notice	Resistance out of range, tolerance and temperature coefficient match are under request. RJM72 is still in trial production.

How to Order

RJM74P	10R	D	C6	T

Product type	Resistance Value (Ω)	Resistance Tolerance (%)	Temperature coefficient (ppm/°C)	Packaging
RJM72P	10 ~ 1M	J ( ±5 ) F ( ±1 ) D ( ±0.5 ) C ( ±0.25 ) B ( ±0.10 ) A5 ( ±0.05 )	C2 ( ±50 ) C3 ( ±25 ) C5 ( ±15 ) C6 ( ±10 ) C7 ( ±5 )	T (Taping Reel) P (Bulk)
RJM73S RJM73P	0.1 ~ 10M
RJM74S RJM74P RJM16M	0.1 ~ 22M
RJM17M RJM18M	0.1 ~ 22M

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