china-yongxing.com

■ meets mil-R-18546

■ must mount dissipate-heat plate as specified

　

RXG12 Resistors, fixed, wire-wound, power type, chassis mount

★ Standard：
▲ Q/RU20005.1-98 RXG12 Resistors, fixed, wire-wound, power type, chassis, mounted, detail specification
▲ Q/RU20005.2-2002 RXG12-50W Resistors, fixed, wire-wound, power type, chassis, mounted, detail specification
▲ Q/RU20005-98 & GJB4154-2001 Resistors, fixed, wire-wound, power type, chassis, mounted, general specification
▲ Equivalent standard: MIL-R-18546

★ Parameters and characteristics： Tab.1

Type	Power W	Dimension (mm)											Nominal resistance Ω	Resistance tolerance ±%	Environmental temperature ℃	Area of chassis cm²	Class of stability
Type	Power W	A ±1.57	(B)	(D)	E ±1.57	F ±1.57	J ±0.79	K ±0.13	L ±0.79	P ±0.13	R_MIN	N ±0.79	Nominal resistance Ω	Resistance tolerance ±%	Environmental temperature ℃	Area of chassis cm²	Class of stability
RXG12	5	28.58	12.45	11.28	15.24	6.76	16.41	2.36	8.13	1.27	2.16	1.65	N:2~ 1500 G:1~3010	1 2 5	-55-250	414	1%
	10	34.93	15.88	14.27	19.05	7.92	20.62	2.39	10.31	2.16	3.56	2.39	N:2~ 2210 G:1~4420			414
	20	49.23	19.84	18.26	26.97	11.13	27.79	3.18	14.27	2.16	3.56	2.39	N:2~ 4320 G:1~8660			537
	30	70.64	21.44	39.67	49.23	11.13	29.36	3.18	15.88	2.16	3.56	2.39	N:2~ 13000 G:1~26100			537

▲ Derating curve by reason of chassis area：

★ Derating curve

★ Main inspection items, methods and requirements:

Items	Methods	Requirements
	Perform standard：General specification
Direct-current resistance	Item 4.6.1 ：Use measuring tool to measure and its accuracy is ±0.5%	≤±1%
Solderability	Item 4.6.3 ：235± 2℃ 10S	95 % of the compressed part of terminal is covered a new、even and slick solder pellicle
Terminal strength	Item 4.6.4 ：10W：22N 20W：44N 5W：22N 30W、50W：44N 30S	△R≤±(0.2%R+0.05Ω)
Temperature characteristic	Item 4.6.4 ： -55℃ / 125℃ 25℃ / 250℃	5W，10W，20W，30W Resistance value≥20Ω TCR≤±30×10^-6/℃ Resistance value 1Ω~19.6Ω TCR≤±50×10^-6/℃	50W Resistance value≥20Ω TCR≤±50×10^-6/℃ Resistance value 1Ω~19.6Ω TCR≤±100×10^-6/℃
High temperature exposure (SW、10W、20W、30W)	Item 4.6.6 ： 250℃ 2h	≤±(0.5%R+0.05Ω)
Dielectric withstand voltage	Item 4.6.7 .1：At the condition of normal air pressure: 5W、10W、20W：1000V_AC50W、30W：2000V_AC1min Item 4.6.7.2：4.39KPa500V:5min	No breakdown or flashover △R≤±(0.2%R+0.05Ω)
Insulation resistance	Item 4.6.8 ：100V 2min	≥ 10G Ω
Thermal shock	Item 4.6.9 ：Load rated power，The temperature which achieve thermal equilibrium: -55℃ 15~30min	No breakdown or flashover △R≤±(0.5%R+0.05Ω)
Short time over-load	Item 4.6.10 ：Load 5 times of rated power 5S	△R≤±(0.5%R+0.05Ω) No flashover、 combustion or scorch
Moisture proof	Item 4.6.11 ：a：loading：Load rated direct voltage b：Polarization：Direct voltage 100V	△R≤±(1%R+0.05Ω) Insulation resistance：≥ 1G Ω，No breakdown
Life	Item 4.6.12 ：a：loading：Load rated direct voltage b：Polarization：Direct voltage 100V	△R≤±(1%R+0.05Ω) Insulation resistance：≥ 10G Ω，No breakdown
Shock	Item 4.6.13 ： 1000m /s²、6ms、half-sine wave	△R≤±(1%R+0.05Ω) No breakdown
High frequency vibration	Item 4.6.14 ：10~2000Hz， 150m /s²、12h	△R≤±(0.2%R+0.05Ω)

Specification are subject to change without notice.