Type

Resistor dimension max

Terminal dimension

D

L

d±0.05

l±2

RY21-0.25

2.1

3.8

0.5

28

RY21-0.5

2.5

7.0

0.6

28

RY21-1

3.9

10.5

0.7

28

RY21-2

4.5

13

0.8

26

RY21-3

6.5

17

0.8

26

RY21-5

9

25.5

0.8

32

Type

Power consumption at 70℃
(W)

Resistance range
(Ω)

Resistance tolerance
±(%)

TCR
±(×10^-6/℃)

Limit voltage
(V)

Insulation voltage
(DC or AC peak value)
(V)

RY21

0.25

1~ 2M

1(F)2(G)5(J)
5(J)

100
250
500

150

250

0.5

[0.1~4.7]
5.1~ 5.1M

250

350

1

350

500

2

[0.1~4.7]
5.1~390K

[5(J)]
2(G)5(J)

350

500

3

350

500

5

1~390K

500

700

Items

Requirements

Methods

TCR

±250×10^-6/℃  ±500×10^-6/℃

-55℃ ~+ 155℃   -55℃ ~+ 125℃ (0.25W)

Endurance at 70℃ or room temperature

±（5%R+0.1Ω）

70℃ ± 2℃ V_R( or room temp. V=√KV_R ）1000h

Withstand voltage

Have no to broke through or fly the arc light

V-block，Infliction exchanges electric voltage, its biggest and worth for insulate the electric voltage of 1.42 times  1min

Solder ability

Solder disengagement flow combine Terminal embellish

235± 5℃   2±0.5s

Over-load

±（1%R+0.05Ω）

2.5V_R( or 2Umax) 5s

Terminal strength

±（1%R+0.05Ω）

Pull the dint：5N(0.25W),10N(Other)
Twist: Continue 2 times, each direction is 1 time
Turn round:  180⁰  2 times

Resistance to soldering head

±（1%R+0.05Ω）

350± 10℃ 3.5s±0.5s
distance dollar piece corpus：2+ ^0.5₀mm

Fast temperature change

±（1%R+0.05Ω）

-55℃ / 155℃ (Other) -55℃ / 125℃ (0.25W)  5 Circulation

Vibration

±（1%R+0.05Ω）

10Hz~500Hz  0.75mm ( or 98m /s²)6h

Climate category

±（5%R+0.05Ω）

Cold low atmospheric pressure circulation of dry heat circulation hot and damp( the first circulation) hot and damp( rest circulation) direct current burthen

Steady damp-heat

±（5%R+0.05Ω）

56day，RH：93～98%

Endurance at upper category tmperature

±（5%R+0.05Ω）

1000h 125℃ (0.25W) 155℃ (2W~5W) 235℃ (0.5W~1.0W)

flame retardant

Burn time ＜10s（not include RY21-0.5W）

Flames method  15s  5time