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參數(shù)資料
| 型號(hào)： | MC34271FB |
| 廠(chǎng)商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | Internal power supply connectors (C-UL, TUV), Discrete wire connectors; HRS No: 680-1089-7 00; Connector Type: Wire; Contact Gender: Female; Termination Style: Crimping; Contact Mating Area Plating: Tin; Operating Temperature Range (degrees C): -35 to 85; General Description: Female contact |
| 中文描述： | 0.5 A DUAL SWITCHING CONTROLLER, 140 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封裝： | PLASTIC, LQFP-32 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 343K |
| 代理商： | MC34271FB |
MC34271
http://onsemi.com
10
PACKAGE DIMENSIONS
QFP–32
FB SUFFIX
CASE 873–01
ISSUE A
0.274
0.274
0.055
0.010
0.051
0.010
–
0.005
0.013
6
°
0.005
5
°
0.006
0.348
0.006
5
°
0.348
MIN
6.95
6.95
1.40
0.273
1.30
0.273
MIN
MAX
7.10
7.10
1.60
0.373
1.50
MAX
0.280
0.280
0.063
0.015
0.059
MILLIMETERS
INCHES
DIM
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
X
–
0.20
0.197
0.57
8
°
0.135
10
°
0.25
9.15
0.25
11
°
9.15
–
0.119
0.33
6
°
0.119
5
°
0.15
8.85
0.15
5
°
8.85
0.031 BSC
0.220 REF
0.016 BSC
0.80 BSC
5.6 REF
0.40 BSC
–
0.008
0.008
0.022
8
°
0.005
10
°
0.010
0.360
0.010
11
°
0.360
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUMPLANE –H– IS LOCATED AT BOTTOMOF
LEAD AND IS COINCIDENT WITH THE LEAD WHERE
THE LEAD EXITS THE PLASTIC BODY AT THE
BOTTOMOF THE PARTING LINE.
4. DATUMS –A–, –B– AND –D– TO BE DETERMINED AT
DATUMPLANE –H–.
5. DIMENSIONS S AND V TO BE DETERMINED AT
SEATING PLANE –C–.
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25
(0.010) PER SIDE. DIMENSIONS A AND B DO
INCLUDE MOLD MISMATCH AND ARE DETERMINED
AT DATUMPLANE –H–.
7. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR PROTRUSION
SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE D
DIMENSION AT MAXIMUMMATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT.
–H–
DATUM
PLANE
X
K
DETAIL C
U
T
R
Q
P
DETAIL A
–A–,–B–,–D–
B
B
J
BASE METAL
D
N
SECTION B–B
VIEW ROTATED 90
°
CLOCKWISE
F
–H–
DATUM
PLANE
H
32
25
24
17
16
9
8
1
V
B
–B–
L
–A–
L
–D–
A
S
DETAIL A
–C–
SEATING
PLANE
C E
DETAIL C
M
M
G
1.0 REF
0.039 REF
C
0.20 (0.008)
A–B
D
S
S
M
0.01 (0.004)
H
0.20 (0.008)
A–B
D
S
S
M
C
0.20 (0.008)
0.05 (0.002)
A–B
D
A–B
S
S
M
0
C
D
0
M
S
S
0
H
D
M
S
S
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