诚招线绕电阻代理商 尚沃

种类  type

额定电力

rated power

耐电压

dielectric

withstanding

 voltage

电阻值范围

resistance

range

使用温度范围

operating temperature range

normal size

small size

1/2w

0.5w

350v

0.1ω～100ω

-55℃～155℃

1w

1ws

1w

500v

0.1ω～100ω

2w

2ws

2w

500v

0.1ω～120ω

3w

3ws

3w

500v

0.1ω～180ω

5w

5ws

5w

500v

0.1ω～300ω

7w

7w

500v

0.1ω～1.5kω

8w

8w

800v

0.1ω～2.2kω

10w

10w

1000v

0.1ω～3.3kω

项目

item

规格值

performance

试验方法(依据jis c 5202)

test methods (conform to jis c 5202)

温度系数

temperature coefficient

±300ppm/℃以内。

within±300ppm/℃

5.2项参照  comply with 5.2

r0:室温(t0)所测量之电阻值。

r1:室温+100℃(t1)后所测量之电阻值。

r0: resistance value at room temp. (t0).

r1: resistance value at room temp. plus 100℃(t1).

短时间过负荷

short time overload

±(2%+0.05ω)以内。

不得有机械的损伤。

within±(2%+0.05ω)

no evidence of mechanical damage.

5.5项参照  comply with 5.5

额定电力的10倍, 5秒。

10 times of rated wattage for 5 seconds

绝缘抵抗

insulation resistance

1,000mω以上。

1,000mωor more

5.6项参照  comply with 5.6

置于v型槽方法。

施加直流电压500v 60秒。

v-block method

resistor shall be tested at dc 500v for 60 seconds.

耐电压

dielectric withstanding voltage

无电弧放电、烧损及绝缘破坏等异状。

no evidence of flashover mechanical damage, arcing or insulation breakdown.

5.7项参照  comply with 5.7

常压,置于v型槽方法。

施加个别规定之交流电压60秒。(见表-1)

constant pressure, v-block method

resistor shall be tested at ac potential respectively for 60 seconds.(see table-1)

断续过负荷

pulse overload

±(2%+0.05ω)以内。

within±(2%+0.05ω)

5.8项参照  comply with 5.8

额定电压x 4倍, 10000回(1秒on, 25秒off)。

rated voltage x 4 times, 10000 cyc.(1s on, 25s off)

端子强度

terminal strength

端子不得断裂及松弛。

no evidence of mechanical damage.

6.1项参照  comply with 6.1

引张强度：25n(2.5kgf),保持10秒。

tensile strength: 25n(2.5kgf), for 10 seconds.

扭转强度：360°交互回转5回。

torsional strength: rotated through 360°, 5 rotations.

项目

item

规格值

performance

试验方法(依据jis c 5202)

test methods (conform to jis c 5202)

焊锡耐热性

resistance to soldering heat

±(2%+0.05ω)以内。

不得有机械的损伤。

within±(2%+0.05ω)

no evidence of mechanical damage.

6.4项参照  comply with 6.4

350±10℃, 3+0.5/-0秒,试验后放置3小时。

350±10℃, 3+0.5/-0s

after test leave for 3h.

焊锡附着性

solderability

导线至少95%以上新锡覆盖。

covered with new solder by 95% at least.

6.5项参照  comply with 6.5

焊锡温度：235±5℃。

浸锡时间：5±0.5秒。

test temperature of solder: 235±5℃

dipping time in solder:5±0.5s

耐溶剂性

resistance to solvent

涂装及色码不得脱落。

no deterioration of protective coating and markings.

6.9项参照  comply with 6.9

放入异丙醇溶剂之超音波机内，保持3分钟。

specimens shall be immersed in a bath of isopropyl alcohol completely for 3 minutes with ultrasonic.

温度循环

temperature cycle

±(2%+0.05ω)以内。

不得有机械的损伤。

within±(2%+0.05ω)

no evidence of mechanical damage.

7.4项参照  comply with 7.4

低温侧：-55℃/30分,室温：10～15分钟

高温侧：+85℃/30分,室温：10～15分钟

5回

low side：-55℃/30min, room temp.：10 to 15min

high side：85℃/30min, room temp.：10 to 15min

5 cycles

耐湿负荷寿命

load life in humidity

±(5%+0.05ω)以内。

within±(5%+0.05ω)

7.9项参照  comply with 7.9

40±2℃,湿度90～95%, 1000小时

定格电压(90分钟on, 30分钟off)

40±2℃, 90 to 95%rh, 1000h

rated voltage (90 min on, 30 min off)

负荷寿命

load life

±(5%+0.05ω)以内。

within±(5%+0.05ω)

7.10项参照  comply with 7.10

70±3℃,1000小时

定格电压(90分钟on, 30分钟off)

70±3℃,1000h

rated voltage (90 min on, 30 min off)

不燃性

incombustibility

没有出现火炎。

no evidence of flame.

7.12项参照  comply with 7.12

16倍额定电力，5分钟。

16 times of rated wattage for 5 min.