PT12-21B Everlight Electronic Co., Ltd., PT12-21B Datasheet - Page 6

• Manufacturer Part Number: PT12-21B
• Description: Chip Phototransistor With Right Angle Lens
• Manufacturer: Everlight Electronic Co., Ltd.

Precautions For Use
1. Over-current-proof
2. Storage
3. Soldering Condition
3.1 Pb-free solder temperature profile
3.2 Reflow soldering should not be done more than two times.
3.3 When soldering, do not put stress on the LEDs during heating.
3.4 After soldering, do not warp the circuit board.
2.1 Do not open moisture proof bag before the products are ready to use.
2.2 Before opening the package, the LEDs should be kept at 30℃ or less and 90%RH or less.
2.3 The LEDs should be used within a year.
2.4 After opening the package, the LEDs should be kept at 30℃ or less and 70%RH or less.
2.5 The LEDs should be used within 168 hours (7 days) after opening the package.
2.6 If the moisture absorbent material (silica gel) has faded away or the LEDs have exceeded the
Everlight Electronics Co., Ltd.
Device No：DTT-012-079
Customer must apply resistors for protection , otherwise slight voltage shift will cause big
current change ( Burn out will happen ).
storage time, baking treatment should be performed using the following conditions.
Baking treatment : 60±5℃ for 24 hours.
http:\\www.everlight.com
Prepared date：07-20-2005
Rev 2
Prepared by：Jaine Tsai
PT12-21B/TR8
Page: 6 of 10