MERCURY

Technical Note
No.: TN-106
MERCURY
www.mercury-crystal.com
Revision: A
Date: Jan. 10, 2001
Page 1 of 2
Title: Suggested soldering pattern and Reflow temperature profile
Products applied: This document can be applied to the following Mercury products
TCXO: M41, M42 and M44
VCTCXO: VM41, VM42 and VM44
Unit: mm.
Electrical connection
Pad 1: No connection for TCXO, voltage control for VCTCXO
Pad 2: Ground
Pad 3: Output
Pad 4: Supply voltage
Pad 4
Pad 3
Top view
Pad 1
Pad 2
Technical Note
No.: TN-106
Revision: A
Date: Jan. 10, 2001
Page 2 of 2
MERCURY
www.mercury-crystal.com
Recommended soldering reflow profile:
TEMP
Peak temp: +240°C
+240°C
+200°C
+150°C
+100°C
+50°C
+25°C
Preheating
More than
30 sec.
60 to 90 sec. at
+150°C~+170°C
Reflow
20 to 40 sec. at temp.
higher than 200°C
Precautions: a. Solder dipping or hand soldering is not recommended.
b. For solder paste screen printer the recommended stencil thickness is 0.15 mm (0.006”)
c. Peak temperature should not exceed +240°C
d. Do not wash the units after soldering. Trimmer capacitor is not subject to the washing
cycles. Models without trimmer capacitor can be washed.