MCR18EZHF2493 Datasheet AT1206CRD0716R9L, AT1206DRE0782KL, AT1206DRE07732KL | P1-P3

MCR18

Resistors

Rev.B 1/5

Thick film rectangular

MCR18 (1206 size: 1 / 4W)

zFeatures

1) Power rating of 1 / 4W

2) Highly reliable chip resistor Ruthenium oxide dielectric offers superior resistance to the elements.

3) Electrodes not corroded by soldering

Thick film makes the electrodes very strong.

4) Leading the world in development and mass production.

Since start of production in 1976 (first in the wold), this component has established a solid reputation as a

general–purpose chip resistor.

5) ROHM resistors have approved ISO–9001 certification.

Design and specifications are subject to change without notice. Carefully check the specification sheet before using or

ordering it.

zRatings

0.25W (1 / 4W)

−55

°

C

to +155

°

C

200V

at 70

°

C

Item Conditions Specifications

Rated power

Rated voltage

Operating temperature

Nominal resistance See Table 1.

Limiting element voltage

Power must be derated according to the power derating curve in

Figure 1 when ambient temperature exceeds 70

°

C

.

The voltage rating is calculated by the following equation.

If the value obtained exceeds the limiting element voltage,

the voltage rating is equal to the maximum operating voltage.

E: Rated voltage (V)

P: Rated power (W)

R: Nominal resistance (Ω)

E= P×R

0

20

40

60

80

100

−55 0 70 100 155

AMBIENT TEMPERAT

URE (°C)

POWER LOAD (%)

Fig.1

MCR18

Resistors

Rev.B 2/5

Max. 50mΩ

2A

−55

°

C to +155

°

C

Resistance

Rated current

Operating temperature

Jumper type

Table 1

Resistance tolerance

Resistance range

(Ω)

Resistance temperature coefficient

(ppm / °

C

)

F (±1%)

J (±5%)

10

≤

R

≤

10M

10

≤

R

≤

2.2M (E24,96)

(E24)

±100

±200

2.2

≤

R

<

10

±500

1.0

≤

R

<

2.2

500±350

z

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.

zCharacteristics

Item Test conditions (JIS C 5201-1)

Resistor type

Guaranteed value

Jumper type

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) Max. 50mΩ

± (1.0%+0.05Ω)

± (3.0%+0.1Ω)

Max. 50mΩ

Max. 100mΩ

J : ±5%

F : ±1%

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.

Max. 50mΩ 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)

± (1.0%+0.05Ω)

Max. 100mΩ

Max. 50mΩ

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 : 400V

MCR18

Resistors

Rev.B 3/5

zExternal dimensions (Unit : mm)

0.5±0.25

1.6±0.15

0.55±0.1

0.5±0.25

3.2±0.15

No.

Material

Resistive element (Oxide metal thick film)

Silver thick film electrode

Nickel electrode

Sn electrode

Alumina substrate

Overcoating

1

2

3

4

5

6

1

2

4

5

6

3

zPackaging

0 2

0 4

0 6

0 8

0 2

0 4

0 6

0 8

C

ABD

ABCD

P

0

P

2

P

2

E

F

W

T

2

φD

2

A

2

B

2

Label

EIAJ ET-7200B compliant

Thick paper

mount

(Underside paper tape) Chip resistor Square punchout hole

Heat crimp cover/Tape

φ180

0

−1.5

φ60

+1

0

9

+1.0

0

φ13

±

0.2

4.0±0.1 4.0±0.1 2.0±0.05

Max. 1.1

φ1.5

+0.1

0

8.0±0.3 3.5±0.05 1.75±0.1

1.95

+0.1

−0.05

3.5

+0.15

−0.05

(Unit: mm)

WFEA

2

B

2

D

2

P

2

P

2

P

2

T

2

Reel Taping

MCR18EZHF2493

MCR18EZHF2493

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