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V1.0

10/07/25

Through Hole Cement Resistor

Newark.com/multicomp-pro

Farnell.com/multicomp-pro

sg.element14.com/b/multicomp-pro

Specifications

Characteristics

Limits

Test Methods

(JIS C 5201-1)

Dielectric withstanding

voltage

No evidence of flashover,

mechanical damage, arcing or

insulation break down

Resistors shall be clamped in the trough of a 90° metallic

V-block and shall be tested at AC potential respectively

for 60 +10/ -0 secs. (Sub-clause 4.7)

Temperature coefficient

<20Ω : ± 400 PPM/°C

≥20Ω : ± 350 PPM/°C

Natural resistance change per temp. degree centigrade.

R2-R1

× 106

(PPM/°C)

R1(t2-t1)

R1: Resistance value at room temperature (t1)

R2: Resistance value at room temp. plus 100°C (t2)

(Sub-clause 4.8)

Short time overload

Resistance change rate is

± (5% + 0.05Ω) Max. with no

evidence of mechanical damage

Permanent resistance change after the application of a

potential of 2.5 times RCWV or Max Overload Voltage

whichever is lesser for 5 sec.

(Sub-clause 4.13)

Terminal strength

No evidence of mechanical

damage

Direct load :

Resistance to a 2.5 kgs direct load for 10 secs. in the

direction of the longitudinal axis of the terminal leads

Twist test :

Terminal leads shall be bent through 90° at a point of

about 6mm from the body of the resistor and shall be

rotated through 360° about the original axis of the bent

terminal in alternating direction for a total of 3 rotations

(Sub-clause 4.16)

Solderability

95 % coverage Min.

The area covered with a new, smooth, clean, shiny and

continuous surface free from concentrated pinholes.

Test temp. of solder : 245°C ± 5°C

Dwell time in solder : 2 to 3 seconds

(Sub-clause 4.17)

Soldering temp. reference

Electrical characteristics shall be

satisfied. Without distinct

deformation in appearance.

(95 % coverage Min.)

The leads immersed into solder bath to 3.2 to 4.8 mm.

from the body. Permanent resistance change shall be

checked.

Wave soldering condition: (2 cycles Max.)

Pre-heat : 100 ~ 120°C, 30 ± 5 sec.

Suggestion solder temp.: 235 ~ 255°C, 10 sec. (Max.)

Peak temp.: 260°C

Hand soldering condition:

Hand Soldering bit temp. : 380 ± 10°C

Dwell time in solder : 3 +1/-0 sec.

Resistance to soldering

heat

Resistance change rate is

± (1% + 0.05Ω) Max. with no

evidence of mechanical

damage.

Permanent resistance change when leads immersed to

3.2 to 4.8 mm from the body in 350°C ± 10°C solder for 3

± 0.5 seconds.

(Sub-clause 4.18)