SPECIFICATION No. JVR03Z-7148B

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5.12 Resistance to soldering heat

5.12.1

The trimmer potentiometer should be soldered under the soldering condition shown in Table 3. The

resistance value should be measured after keeping the trimmer potentiometer in a room for 24+8/-0 hours.

5.12.2

The trimmer potentiometer should be soldered twice under the soldering condition shown in Table 4. The

resistance value should be measured after keeping the trimmer potentiometer in a room for 24+8/-0 hours.

5.13 Solderability

The trimmer potentiometer should be dipped into flux (Rosin type: chlorine 0.2% max., Solid content 30% max.,

Specific gravity 0.8 to 0.9), and dipped into solder bath at 230±5°C for 3.0±0.5 sec.

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Caution

(1) Please contact us before using our products for the applications listed below which require especially high

reliability for the prevention of defects that might directly cause damage to the third party’s life, body or

property.

(2) Be sure to provide an appropriate fail-safe function on your product to prevent a second damage that may

be caused by an abnormality or failure related to our product.

Table 4

Pre-heating temperature

150 to 180°C

Pre-heating time

60 to 120 sec.

Soldering temperature

220°C

Soldering time

30 to 60 sec.

Reflow peak temperature

260°C max.

Table 3

Pre-heating temperature

130 to 160°C

Pre-heating time

60 to 120 sec.

Soldering temperature

200°C

Soldering time

30sec. max.

Reflow peak temperature

240°C max.