Type

Rated power

Dielectric withstanding

voltage

KNP Resistance

Range(Ω)

NKNP Resistance

Range(Ω)

Normal size

KNP1/2W,

NKNP1/2W

0.5W

300V

0.05Ω~1KΩ

0.1Ω~680Ω

KNP1W,

NKNP1W

1W

350V

KNP2W,

NKNP2W

2W

350V

KNP3W,

NKNP3W

3W

400V

KNP5W,

NKNP5W

5W

400V

Small size

KNP1WS,

NKNP1WS

1W

300V

0.05Ω~1KΩ

0.1Ω~680Ω

KNP2WS,

NKNP2WS

2W

350V

KNP3WS,

NKNP3WS

3W

350V

KNP5WS,

NKNP5WS

5W

400V

NO

Item

Material

1

Ceramic core

High alumina ceramic is used.

2

Resistor element

The resistor element shall consist of Resistance wire(Exemple:CN49W Φ1.0mm) .

3

Terminal

Tinned iron cap.

4

Connection

The lead wire,which is plated with solder,shall be mounted to the caps by welding process.

5

Lead wire

Soldered or tinned annealed wire.

6

Finishing painting

Silicon resin is used. Accord with UL-94V-0 Nonflammable specification.

7

Indication

Color code.

Normal size

Small size

Type

Color

Type

Color

KNP1/2W,NKNP1/2W,

KNP1W,NKNP1W

KNP2W,NKNP2W,

KNP3W,NKNP3W

Gray

KNP1WS,NKNP1WS,

KNP2WS,NKNP2WS,

KNP3WS,NKNP3WS

KNP5WS,NKNP5WS

Pink

Item

Performance

Test methods(Conform to JIS C 5202)

Temperature

Coefficient

±350PPM/℃

(±500PPM/℃＜1Ω)

Comply with 5.2

R1-R0/R0(T1-T0)*10 6(PPM/C)

R0:Resistance value at room temp.( T0).

R1:Resistance value at room temp.plus 100℃(T1)

Short time

overload

Within ±(2%+0.05Ω).

No evidence of mechanical damage.

Comply with 5.5

Rated voltage×2.5 times,5s

But not to exceed maximum overload voltage.

(See table-1)

Item

Performance

Test methods(Conform to JIS C 5202)

Insulation

Resistance

104MΩ or more.

Comply with 5.6

V-block method

Resistor shall be tested at DC 500V for 60 seconds.

Dielectric

Withstanding

Voltage

No evidence of flashover mechanical damage,arcing

or insulation breakdown.

Comply with 5.7

Constant pressure, V-block method

Resistor shall be tested at AC potential respectively for 60 seconds.(See table-1)

Pulse overload

Within ±(2%+0.05Ω)

Comply with 5.8

Rated voltage X 4 times, 10000 cyc.(1s ON, 25s OFF)

But not to exceed maximum pulse voltage.(See table-1)

Terminal strength

No evidence of mechanical damage.

Comply with 6.1

Torsion strength:To bend the lead wire at the point of about 6mm~6.5mm from resistor body. about 0.75mm curvature radii to 90°then catch the wire at 1.2±0.4mm apart from the bend point end and turn it ( clockwise ) by 360 degrees perpendicular to the resistor axis at speed of same 5 seconds per turn, and do the same counterclockwise again which constitute a whole turn. Repeat the turn for 2 times without causing any break and looseness.

Item

Performance

Test methods(Conform to JIS C 5202)

Resistance to soldering heat

Within ±(1%+0.05Ω)

No evidence of mechanical damage.

Comply with 6.4

350±10℃, 3±1s After test leave for 0.5h.

Solderability

Covered with new solder by 95% at least.

Comply with 6.5

Test temperature of solder:255±5℃

Dipping time in solder:3±1.0 s

Resistance to solvent

No deterioration of protective coating and markings.

Comply with 6.9

Specimens shall be immersed in a bath of isoproalcohol completely for 3 minutes with ultrasonic.

Temperature cycle

Within ±(1%+0.05Ω)

No evidence of mechanical damage.

Comply with 7.4

Low side:-55℃/30min, Room temp.:10 to 15min

High side:80℃/30min, Room temp.:10 to 15min

5 cycles

Load life in humidity

Within ±(5%+0.05Ω)

Comply with 7.9

40±2℃, 90 to 95%RH, 1000h

Rated voltage (90 min ON, 30 min OFF)

Load life

Within ±(5%+0.05Ω)

Comply with 7.10

70±3℃, 1000h

Rated voltage (90 min ON, 30 min OFF)

Color

1st figure

2nd figure

Multiplier

Tolerance

Distinguish

Black

0

0

100

.

KNP type in ‘Black’,

NKNP type in ‘Green’.

Brown

1

1

101

±1%

(F)

Red

2

2

102

±2%

(G)

Orange

3

3

103

Yellow

4

4

104

Green

5

5

105

Blue

6

6

106

Violet

7

7

107

Gray

8

8

White

9

9

Gold

10-1

±5%

(J)

Silver

10-2

±10%

(K)

Plain

Type

Dimensions

Normal Size

Small Size

I±2.0

L±1.0

ψD

ψd±0.05

H±2.0

KNP1/2W,

NKNP1/2W

KNP1WS,

NKNP1WS

60

9.0

3.2±0.5

0.50

28

KNP1W,

NKNP1W

KNP2WS,NKNP2WS

60

11.5

4.5±1.0

0.68

25

73

11.5

4.5±1.0

0.68

31

KNP2W,

NKNP2W

KNP3WS,NKNP3WS

60

15.5

5.0±1.0

0.68

23

81

15.5

5.0±1.0

0.68

33

KNP3W,

NKNP3W

KNP5WS,

NKNP5WS

94

17.5

6.0±1.0

0.68

38

KNP5W,NKNP5W

94

24.5

8.0±1.0

0.68

35

Type

Taping

Dimensions

Normal Size

Small Size

L

W

P

L1-L2

Max.

T

Z

Max.

R

Max.

t

Max.

e

Max.

S

Max.

KNP 1/2W

KNP 1WS

T52

9.0±1.0

52±1.0

5±0.5

1.0

6±0.5