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2010 ROHM Co., Ltd. All rights reserved.

2010.06 - Rev.E

Data Sheet

LTR18

±200

Table 1

Resistance tolerance

Resistance range

(

Ω)

Resistance temperature coefficient

(ppm/

°C)

J (

±5%)

1 to 1M (E24)

10 to 1M (E24)

±100

±100

F (

±1%)

D (

±0.5%)



Before using components in circuits where they will be exposed to transients such as pulse loads (short–duration, high– level

loads), be certain to evaluate the component in the mounted state. In addition, the reliability and performance of this

component cannot be guaranteed if it is used with a steady state voltage that is greater than its rated voltage.

Characteristics

Item

Test conditions (JIS C 5201-1)

Resistor type

Guaranteed value

Resistance

Variation of resistance

with temperature

Solderability

Damp heat, steady state

Endurance at 70

°C

Endurance

Rapid change of

temperature

Bend strength of

the end face plating

Resistance to solvent

Resistance to

soldering heat

Overload

± (2.0%+0.1Ω)

± (1.0%+0.05Ω)

± (3.0%+0.1Ω)

J :

±5%

F :

±1%

D :

±0.5%

See Table.1

No remarkable abnormality on the appearance.

A new uniform coating of minimum of

95% of the surface being immersed

and no soldering damage.

Without mechanical damage such as breaks.

JIS C 5201-1 4.5

JIS C 5201-1 4.8

Measurement :

−55 / +25 / +125°C

JIS C 5201-1 4.18

Soldering condition : 260

±5°C

Duration of immersion : 10

±1s.

JIS C 5201-1 4.24

40

°C, 93%RH

Test time : 1,000h to 1,048h

± (3.0%+0.1Ω)

± (3.0%+0.1Ω)

± (1.0%+0.05Ω)

± (1.0%+0.05Ω)

± (1.0%+0.05Ω)

JIS C 5201-1 4.25.1

Rated voltage (current), 70

°C

1.5h : ON

− 0.5h : OFF

Test time : 1,000h to 1,048h

JIS C 5201-1 4.25.3

155

°C

Test time : 1,000h to 1,048h

JIS C 5201-1 4.29

23

±5°C, Immersion cleaning, 5±0.5min.

Solvent : 2-propanol

JIS C 5201-1 4.19

Test temp. :

−55°C to +125°C 5cyc

JIS C 5201-1 4.33

JIS C 5201-1 4.17

Rosin·Ethanol (25%WT)

Soldering condition : 235

±5°C

Duration of immersion : 2.0

±0.5s.

JIS C 5201-1 4.13

Rated voltage (current)

×2.5, 2s.

Maximum overload voltage : 200V

Static electric

characteristics

± (5.0%+0.05Ω)

EIAJ ED-4701/300 Test method 304

Voltage : 3kv

C : 100pF

R : 1.5k

Ω

Apply cycle : 1 time