項(xiàng)目 item | 規(guī)格值 performance | 試驗(yàn)方法(依據(jù)jis c 5202) test methods (conform to jis c 5202) |
溫度系數(shù) temperature coefficient | ±200ppm/℃以內(nèi)。 within±200ppm/℃ | 5.2項(xiàng)參照 comply with 5.2 r0:室溫(t0)所測(cè)量之電阻值。 r1:室溫+100℃(t1)后所測(cè)量之電阻值。 r0: resistance value at room temp.(t0). r1: resistance value at room temp. plus100℃(t1). |
短時(shí)間過(guò)負(fù)荷 short time overload | ±(2%+0.05ω)以內(nèi)。 不得有機(jī)械的損傷。 within±(2%+0.05ω) no evidence of mechanical damage. | 5.5項(xiàng)參照 comply with 5.5 額定電壓x 2.5倍, 5秒。 rated voltage x 2.5 times, 5s |
絕緣抵抗 insulation resistance | 104mω以上。 104mωor more | 5.6項(xiàng)參照 comply with 5.6 置于v型槽方法。 施加直流電壓500v 60秒。 v-block method resistor shall be tested at dc 500v for 60 seconds. |
耐電壓 dielectric withstanding voltage | 無(wú)電弧放電、燒損及絕緣破壞等異狀。 no evidence of flashover mechanical damage, arcing or insulationbreakdown. | 5.7項(xiàng)參照 comply with 5.7 常壓,置于v型槽方法。 施加個(gè)別規(guī)定之交流電壓60秒。(見表-1) constant pressure, v-block method resistor shall be tested at ac potential respectively for 60seconds.(see table-1) |
斷續(xù)過(guò)負(fù)荷 pulse overload | ±(1%+0.05ω)以內(nèi)。 within±(1%+0.05ω) | 5.8項(xiàng)參照 comply with 5.8 額定電壓x 4倍, 10000回(1秒on, 25秒off)。 rated voltage x 4 times, 10000 cyc.(1s on, 25s off) |
端子強(qiáng)度 terminal strength | 端子不得斷裂及松弛。 no evidence of mechanical damage. | 6.1項(xiàng)參照 comply with 6.1 引張強(qiáng)度：25n(2.5kgf),保持10秒。 tensile strength: 25n(2.5kgf), for 10 seconds. 扭轉(zhuǎn)強(qiáng)度：360°交互回轉(zhuǎn)5回。 torsional strength: rotated through 360°, 5 rotations. |
焊錫耐熱性 resistance to soldering heat | ±(1 %+0.05ω)以內(nèi)。 不得有機(jī)械的損傷。 within±(1%+0.05ω) no evidence of mechanical damage. | 6.4項(xiàng)參照 comply with 6.4 350±10℃, 3+0.5/-0秒,試驗(yàn)后放置3小時(shí)。 350±10℃, 3+0.5/-0s after test leave for 3h. |