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TRY-A current-limiting Resistor

★ Standard
▲ Q/RU20086-2002 Detail specification, TRY-A current-limiting Resistor
▲ GJB 360A Test methods of electronic & electric components

★ Dimension (mm)

Rated power (W)	max				Rated power consumption at 70℃ (W)	Transient (200ms) overload	Resistance range Ω	Resistance series	Resistnace tolerance ±(%)	Temperature characteristice ±10^-6/℃
	D	L	l±2	d±0.05
0.25	2.5	7.0	28	0.6	0.25	50	1~10	E24	5	500
0.5	3.9	10.5	28	0.6	0.5	100
1	4.5	13	28	0.8	1	200

Note: when resistance value ≤5.1Ω,the TCR shall be not exceed a factor of 2 limits prescribed above the table.

★ Main inspections items, methods & requirements

Items	Methods	Requirements
Thermal shock	-65℃ ~ 125℃ 5 time cycle	No visible damage ±(2%R+0.05Ω)
Operation at low temperature	Temperature： -65℃ 1h， Rated voltage 45min	No visible damage ±(2%R+0.05Ω)
Over-load	2.5 times of Rated voltage Time： 5s	No breakdown or flashover ±(2%R+0.05Ω)
Terminal strength	Tension：：0.25W：10N；0.5W：15N；1W：20N Torque：：360° 3 time	No visible damage ±(1.5%R+0.05Ω)
Dielectric withstand voltage	Methods ：V-block 1min 0.25W:200V；0.5W：250V；1W：300V	No visible damage， No breakdown or flashover △R≤±(1%R+0.05Ω)
insulation resistance	voltage：100V	insulation resistance≥10GΩ
Resistance to soldering heat	350± 10℃ 3.0+0.5s	±(2%R+0.05Ω)
Moesture proof	Humidity:80%~98% Temp.:-10℃ ~ 65℃ (rated Voltage 4h)10 time cycle	±(4%R+0.05Ω) insulation resistance≥ 100M Ω
TCR	-50℃ / 20℃ 20℃ / 125℃	≤±500×10/℃
Life at high temperature	70℃ Rated voltage 1000h	±(4%R+0.05Ω)
Solder ability	235± 5℃ 5s	90% coverage Min
Impulse	500/S 11ms 10 time	No visible damage ±(2%R+0.05Ω))
High frequency vibration	10HZ 150m /s 8h	No visible damage ±(2%R+0.05Ω)
Transient overload	overload power： 0.25W：50W；0.5W：100W；1W：200W Time：200ms	200ms， △R/R≤±5%； 0.2s~5s，fuse or broken

Note: It will be called to fuse or broken when the current through resistor fall to 1/50 current value tested initially.

Specification are subject to change without notice.