Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

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KOA SPEER ELECTRONICS, INC.

SS-238 R3

Item

Requirement

Test Methods (JIS C 5202)

Resistance

Within regulated tolerance

25°C

T.C.R.

Within specified T.C.R.

Room temperature/100°C up,

LR72C: Room temperature/25°C ~ 200°C

Resistance to

± 2.0%

350°C ±10°C, 3s;

Soldering Heat

LR72C: 260°C ± 5°C, 10 seconds

Solderability

95% Coverage min.

235°C ±5°C, 5s

Moisture Resistance

±3%

40°C 90% ~ 95% RH, 1000h. No load

Moisture Resistance

±5%

Power rating X 1/10, 40°C, 90% ~ 95% RH.

1000h, 1.5h ON 0.5h OFF cycle

Load Life

±5% (A & B), ±3% (C)

Rating voltage, 1000h, 1.5h ON

0.5h OFF cycle

6. Characteristics

5. Dimensions

L2

L2

L

W

t

Copper Nickel

Alloy

Termination

W

t

d

L

a

Copper Nickel

Alloy

Termination

L2

L2

L

W

Copper Nickel

Alloy

Termination

g

g

LR72A

3.75 size only

d

t d

L

.39±.004

(10.0±0.1)

.079

(2.0)

.39±.004

(10.0±0.1)

.079

(2.0)

.20±.008

(5.2±0.2)

.079

(2 Max.)

.20±.008

(5.2±0.2)

.079

(2 Max.)

-.02

Wt

Dimensions inches

(mm)

Size

Code

LR72A

(8.00)

LR72A

(5.00)

L

.44±.016

(11.2±0.4)

.126±.016

(3.2±0.4)

.137±.016

(3.5±0.4)

.189±.030

(4.8±.75)

.093±.010

(2.35±.25)

Wt

a

d

Dimensions inches

(mm)

Size

Code

LR72C

LR72B

LR72A

LR72C

.009

(0.22)

.006

(0.16)

d

L

.39±.004

(10.0±0.1)

.079

(2.0)

.118±.008

(3.0±0.2)

.079

(2 Max.)

-.02

Wt

Dimensions inches

(mm)

Size

Code

LR72B

.026

(0.66)

.043±.008

(1.1±0.2)

dg

.39±.004

(10.0±0.1)

.079

(2.0)

.20±.008

(5.2±0.2)

.079

(2 Max.)

LR72A

(3.75)

.013

(0.32)

.39±.004

(10.0±0.1)

.079

(2.0)

.20±.008

(5.2±0.2)

.079

(2 Max.)

LR72A

(2.50)

.019

(0.47)

SS-238 R3

6/1/07

5:13 PM

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