Pomona
®
Model 7048AL
304 Lead QFP Locking Test Clip
0.50mm Lead Pitch
These new locking test clips provide the
user with an easy and reliable means to
connect instrumentation to the SMT leads
of 304 pin plastic quad flatpack (QFP)
chips.
The special locking fingers at each corner
attach to the body of the chip and hold the
clip firmly against the chip leads.
•
•
Locking fingers attach to the chip body
and allow testing of vertical boards.
A custom designed interface with high
density plastic, metal and ceramic QFP
surface mount chip leads.
Gold plated PGA sockets assure noise
free connections.
A package of 50
•
adapter pins are included in the
package. Packages of 100 pins are
available. (To order additional
packages, use part number 7056.)
Pomona's test clips are designed to be used by system designers, and others who use logic analyzers or emulators, in field
service & lab testing, and for failure analysis. Other clips are also available in other sizes to fit the most popular QFP chips
now in use.
LEADS
D
42.0 mm
BODY
D1
40.0mm
CRITICAL
DIM
C
1.650"
Max
Height
A
4.0 mm
Typical Applications
Plastic: JEDEC MO-143, ALTERA EPF81500, LSI,
NEC, etc.
PART
NO.
7048AL
All dimensions are in inches. Tolerances (except noted): .xx = ±.02” (,51 mm), .xxx = ± .005” (,127 mm).
All specifications are to the latest revisions. Specifications are subject to change without notice.
Registered trademarks are the property of their respective companies. Made in USA
6/9/99
SY/EH/LS
Sales: 909-469-2900 Fax: 909-629-3317
Technical Assistance: 800-241-2060
PomonaACCESS
90438
(800) 444-6785 or (949) 253-3858
More drawings available at www.pomonaelectronics.com
Page 1 of 3
S:\Engineering\Release\DataSheet\4_Market_00\D7048AL_3_01.doc
Pomona
®
Model 7048AL
304 Lead QFP Locking Test Clip
0.50mm Lead Pitch
PGA Socket Layout (Top View of Socket)
The PGA socket is carefully routed to convert from the OFP by the shortest route. Note that each 90° quadrant is routed in the
same pattern.
QFP Pin #1 is located
near PGA position D1.
All dimensions are in inches. Tolerances (except noted): .xx = ±.02” (,51 mm), .xxx = ± .005” (,127 mm).
All specifications are to the latest revisions. Specifications are subject to change without notice.
Registered trademarks are the property of their respective companies. Made in USA
6/9/99
SY/EH/LS
Sales: 909-469-2900 Fax: 909-629-3317
Technical Assistance: 800-241-2060
PomonaACCESS
90438
(800) 444-6785 or (949) 253-3858
More drawings available at www.pomonaelectronics.com
Page 2 of 3
S:\Engineering\Release\DataSheet\4_Market_00\D7048AL_3_01.doc
Pomona
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
1
1
3
4
7
13
19
23
29
34
38
43
48
54
59
68
70
73
2
®
Model 7048AL
304 Lead QFP Locking Test Clip
0.50mm Lead Pitch
PGA To QFP Pin Map
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
19
301 298 296 287 282 276 271 266 262 257 251 247 241 235 232 231 229
302 299 294 289 284 277 272 267 263 258 252 248 242 236 233 230 226 225
2
5
8
14
20
24
30
35
39
44
49
56
61
66
71
74
77
2
304 303 293 290 283 278 273 268 261 256 250 243 238 234 228 223 222
6
10
15
22
28
33
40
45
50
55
62
65
75
76
78
79
3
300 295 291 285 279 274 269 260 254 246 240 237 224 227 218 220
9
12
18
26
32
41
46
51
57
63
67
72
82
81
80
4
297 292 286 280 275 265 259 253 245 239 221 219 217 213 211
11
17
25
31
37
47
52
58
64
69
85
86
84
83
5
87
88
91
90
89
6
16
21
27
36
42
53
60
92
97 103 112 118 129 136
288 281 270 264 255 249 244
216 215 214 208 206
212 210 209 207 201 200
205 204 203 202 196 195
194 199 198 197 191 190
188 189 193 192 187 186
179 183 184 185 182 181
173 177 178 180 176 175
168 169 170 174 172 171
163 164 167 166 165
93 101 107 113 123 128 134 140 145 161 162 160 159
94 102 108 117 122 127 133 139 143 148 158 157 156
98 104 109 116 121 126 131 138 141 151 152 154 155
96 100 106 111 115 120 125 132 137 142 147 150 153
95
7
99 105 110 114 119 124 130 135 144 146 149
8
9
10
11
12
13
14
15
16
17
18
All dimensions are in inches. Tolerances (except noted): .xx = ±.02” (,51 mm), .xxx = ± .005” (,127 mm).
All specifications are to the latest revisions. Specifications are subject to change without notice.
Registered trademarks are the property of their respective companies. Made in USA
6/9/99
SY/EH/LS
Sales: 909-469-2900 Fax: 909-629-3317
Technical Assistance: 800-241-2060
PomonaACCESS
90438
(800) 444-6785 or (949) 253-3858
More drawings available at www.pomonaelectronics.com
Page 3 of 3
S:\Engineering\Release\DataSheet\4_Market_00\D7048AL_3_01.doc
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