Precision Resistors - Direct Electronics

Ultra Precision Resistors Index
RN Series - MIL-PRF-55182 Moulding Precision PPM 25~100
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
UAR Series - Moulding High Precision Low TCR PPM 3~15
UPR Series - Radial Precision Network Low TCR PPM 2~25
RJM Series - Precision Coating MELF Type
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

High precision
extreme reliability
excellent stability
Moulding Type
Low temperature coefficient PPM.
Token RN Series meets MIL-PRF-55182 and GJB244A-2001 quality standards

precision resistors

Moulding High Precision Low TCR

Technical Characteristics

TYPE		RN50	RN55	RN60	RN65	RN70
Rated Wattage (W)	70°C	0.067	0.125	0.250	0.500	0.750
Rated Wattage (W)	125°C	0.050	0.100	0.125	0.250	0.500
Max. Working Voltage (V)		200	200	250	300	350
Dimensions (mm)	L ± 0.3	3.9	6.8	10.0	14.8	18.3
	D ± 0.4	1.8	2.5	3.7	5.2	6.5
	A ± 0.05	0.45	0.60	0.60	0.60	0.81
MIL-Approved Resistance Range (Ω)		10.0 ~ 100K	49.9 ~ 100K	49.9 ~ 499K	49.9 ~ 1.0M	24.9 ~ 1.0M
AWG Wire No.		26	22	22	22	20
Working Temperature Range		-55°C ~ +175°C
Nominal Resistance Tolerance		B(±0.10%), C(±0.25% ), D(±0.50%), F(±1.00%)
Temperature Coefficient		E(±25PPM/°C), C(±50PPM/°C), D(±100PPM/°C)


Remark	Temperature Coefficient PPM can be low to ±5PPM/°C, if applications only need operation in narrow precise temperature range within -55°C ~ +175°C. Please contact Token Representatives. Please contact Token's Representatives if your requirement is not in above range.

Periodical Inspection Items and Methods

Type	Item	Method	Requirement
Long Period	Life time	GJB244A (MIL-PRF-55182) 4.8.18 Rated Wattage,125°C,2000h 10000h	GJB244A (MIL-PRF-55182) 3.24 ΔR≤±(0.5%R+0.01Ω) ΔR≤±(2%R+0.01Ω)
	Humidity	GJB244A (MIL-PRF-55182) 4.8.18 -10°C ~ +65°C, RH<90% Rated Wattage, Cycle 240h.	GJB244A (MIL-PRF-55182) 3.21 ΔR≤±(0.4%R+0.01Ω)
	High temp exposed	GJB244A 4.8.19 175°C 2000h	GJB244A (MIL-PRF-55182) 3.25 ΔR≤±(2.0%R+0.01Ω)
Short Period	Dielectric voltage	GJB244A (MIL-PRF-55182) 4.8.12/4.8.23/4.8.10	GJB244A (MIL-PRF-55182) 3.18/3.29/3.16 ΔR≤±(0.15%R+0.01Ω) no physical damage, arc, isolation break through
	Lead strength Impact High frequency vibration	GJB244A (MIL-PRF-55182) 4.8.11/4.8.16/4.8.17	GJB244A (MIL-PRF-55182) 3.17/3.22/3.23 ΔR≤±(0.20%R+0.01Ω) no physical damage
	Solderability	GJB244A (MIL-PRF-55182) 4.8.14	GJB244A (MIL-PRF-55182) 3.20 ΔR≤±(0.10%R+0.01Ω) no physical damage

Derating Curve

High Precision Low ohmic Resistors

How to Order

RN65	0.500W		100KR	D	C	P

Product type	Rated Power (W)		Resistance Value (Ω)	Resistance Tolerance (%)	Temperature coefficient (PPM/°C)	Packaging
RN50 RN55 RN60 RN65 RN70	70°C	0.067 0.125 0.250 0.500 0.750	10.0 ~ 100K 49.9 ~ 100K 49.9 ~ 499K 49.9 ~ 1.0M 24.9 ~ 1.0M	B(±0.10) C(±0.25) D(±0.50) F(±1.00)	C3 ( ±25 ) C2 ( ±50 ) C1 ( ±100 )	P (Bulk)
RN50 RN55 RN60 RN65 RN70	125°C	0.050 0.100 0.125 0.250 0.500	10.0 ~ 100K 49.9 ~ 100K 49.9 ~ 499K 49.9 ~ 1.0M 24.9 ~ 1.0M	B(±0.10) C(±0.25) D(±0.50) F(±1.00)	C3 ( ±25 ) C2 ( ±50 ) C1 ( ±100 )	P (Bulk)

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