PackageLead Form Options

TO-257 LEADFORM UP OUTLINE
0.13 [.005]
A
10.66 [.420]
10.42 [.410]
13.63 [.537]
13.39 [.527]
5.08 [.200]
4.83 [.190]
3.81 [.150]
3.56 [.140]
Ø
16.89 [.665]
16.39 [.645]
10.66 [.420]
10.42 [.410]
18.29 [.720]
17.27 [.680]
1
C
2
3
R 1.52 [.060]
MIN.
2X
3X Ø
5
0.88 [.035]
0.64 [.025]
0.25 [.010]
C A
B
B
(4.37 [.172])
0.889 [.035]
MAX.
2.54 [.100]
1.14 [.045]
0.89 [.035]
3.17 [.125]
2.93 [.115]
3.51[.150]
MIN.
NOTES:
1.
2.
3.
4.
DIMENSIONING & TOLERANCING PER ASME Y14.5M-1994.
ALL DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
CONTROLLING DIMENSION: INCH.
THIS OUTLINE IS A MODIFIED TO-257AA JEDEC OUTLINE.
5 LEADS ARE SOLDER DIPPED TO THIS DIMENSION.
PIN ASSIGNMENTS
1 = DRAIN
2 = SOURCE
3 = GATE
TO-257AA LEADFORMED UP W/TRIM OUTLINE
0.13 [.005]
A
10.66 [.420]
10.42 [.410]
13.63 [.537]
13.39 [.527]
5.08 [.200]
4.83 [.190]
3.81 [.150]
3.56 [.140]
Ø
16.89 [.665]
16.39 [.645]
10.66 [.420]
10.42 [.410]
18.29 [.720]
17.27 [.680]
1
C
2
3
B
R 1.52 [.060]
MIN.
(4.37 [.172])
0.889 [.035]
MAX.
2.54 [.100]
2X
1.14 [.045]
0.89 [.035]
3X Ø
5
0.88 [.035]
0.64 [.025]
0.25 [.010]
C A
3.17 [.125]
2.93 [.115]
B
NOTES:
1.
2.
3.
4.
DIMENSIONING & TOLERANCING PER ASME Y14.5M-1994.
ALL DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
CONTROLLING DIMENSION: INCH.
THIS OUTLINE IS A MODIFIED TO-257AA JEDEC OUTLINE.
5 LEADS ARE SOLDER DIPPED TO THIS DIMENSION.
6. LEADS TO BE TRIMMED TO 10.795 [.425] ± 0.635 [.025] BEFORE LEADFORMING.
PIN ASSIGNMENTS
1 = GATE
2 = DRAIN
3 = SOURCE
TO-257AA LEADFORMED DOWN OUTLINE
0.13 [.005]
A
10.66 [.420]
10.42 [.410]
13.63 [.537]
13.39 [.527]
3.81 [.150]
3.56 [.140]
Ø
16.89 [.665]
16.39 [.645]
10.66 [.420]
10.42 [.410]
18.16 [.715]
17.40 [.685]
1
C
2
1.14 [.045]
0.89 [.035]
B
3
3X Ø
0.88 [.035]
0.64 [.025]
0.25 [.010]
C A
R 1.52 [.060]
MIN.
4.69 [.185]
3.94 [.155]
0.889 [.035]
MAX.
2.54 [.100]
2X
5.08 [.200]
4.83 [.190]
3.17 [.125]
2.93 [.115]
B
5
3.51[.150]
MIN.
NOTES:
1.
2.
3.
4.
DIMENSIONING & TOLERANCING PER ASME Y14.5M-1994.
ALL DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
CONTROLLING DIMENSION: INCH.
THIS OUTLINE IS A MODIFIED TO-257AA JEDEC OUTLINE.
5 LEADS ARE SOLDER DIPPED 1.27 [.050] MIN. BEYOND THE SEATING PLANE.
PIN ASSIGNMENTS
1 = DRAIN
2 = SOURCE
3 = GATE