Off-Line Quasi-Resonant Switching Regulators
STR-X6757
Package Outline Drawing, TO-3P
15.6 ±0.2
6
5.5±0.2
Gate Burr
3.45±0.2
Branding
Area
XXXXXXXX
XXXXXXXX
XXXXXXXX
3.35±0.1
+0.2
–0.1
0.55
View A
3.6 ±0.5
4.3 ±0.5
2X 2.54±0.1
4X 1.27±0.1
Terminal dimension at lead tip
Terminal dimension at lead tip
+0.2
–0.1
+0.2
–0.1
2
3
5
7
1.33
5X 0.75
+0.2
–0.1
+0.2
–0.1
1
4
6
5X 0.65
2X 0.83
+0.2
–0.1
1.89
Enlargement View A
0.5
0.5
Front View (Plan View)
Gate burr: 0.3 mm (max.)
Terminal core material: Cu
Terminal treatment: Ni plating and Pb-free solder dip
Leadform: 1905
Drawing for reference only
Branding codes (exact appearance at manufacturer discretion):
1st line, type: STR
2nd line, subtype: X6757
3rd line, lot: YM DD
Approximate weight: 6 g
Dimensions in millimeters
Where: Y is the last digit of the year of manufacture
M is the month (1 to 9, O, N, D)
DD is the 2-digit date
Leadframe plating Pb-free. Device composition
includes high-temperature solder (Pb >85%),
which is exempted from the RoHS directive.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
8
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
