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SiW1721B
60 0076 R00F SiW1721B Radio Modem IC DS
Carriers
Tape and Reel
SiW1721BFIG, 5 X 5 mm, 32-Pin QFN, Tape and Reel Details
Carrier tape basic dimensions are based on EIA 481. The pocket is designed to hold the part for shipping and loading onto
SMT manufacturing equipment, while protecting the body and the solder terminals from damaging stresses. The individual
pocket design can vary from vendor to vendor, but width and pitch will be consistent.
Carrier tape is wound or placed onto a shipping reel either 330 mm (13 inches) in diameter or 178 mm (7 inches) in
diameter. The center hub design is large enough to ensure the radius formed by the carrier tape around it does not put
unnecessary stress on the parts.
Prior to shipping, moisture sensitive parts (MSL level 2a-5a) are baked and placed into the pockets of the carrier tape. A
cover tape is sealed over the top of the entire length of the carrier tape. The reel is sealed in a moisture barrier ESD bag,
which is placed in a cardboard shipping box. It is important to note that unused moisture sensitive parts need to be
resealed in the moisture barrier bag. If the reels exceed the exposure limit and need to be baked, most carrier tape and
shipping reels are not rated as bakeable at 125°C. If baking is required, devices may be baked according to section 4,
table 4-1, column 8, of the Joint Industry Standard IPC/JEDEC J-STD-033A.
The following tables provide useful information for carrier tape and reels used for shipping the devices described in this
document.
RFMD Part Number
Reel
Diameter
Inch (mm)
Hub
Diameter
Inch (mm)
Width (mm)
Pocket Pitch
(mm)
Feed
Units
SiW1721BFIG-TR13
13 (330)
4 (102)
12
8
Single
2500/reel
SiW1721BFIGSR
7 (178)
2.4 (61)
12
8
Single
100/reel
Peel Test
Peel Angle
Cover Tape
Leader
Trailer
Peel Speed
10–50 grams
165-180
º
RS Standard
(anti-static)
500 mm
(minimum 400 mm)
250 mm
(minimum 160 mm)
300 mm/minute
W
P
F
Ko
Bo
Ao
Ao = 5.30 ±.10
Bo = 5.30 ±.10
F = 5.50 ±.05
Ko = 1.83 ±.10
P = 8.00 ±.10
W = 12.00 +.30/-.10
Notes:
1. All dimensions are in millimeters (mm).
2. Unless otherwise specified, all dimension tolerances per EIA-481.
4.00 ±.10
2.00 ±.05
15-inch Trailer
Top View
15-inch Leader
Ø1.50±.10
1.75 ±.10
0.330±.020
Direction of Feed
Pin 1
Location
Part Number
YYWW
Trace Code
Part Number
YYWW
Trace Code
Part Number
YYWW
Trace Code
Part Number
YYWW
Trace Code
Part Number
YYWW
Trace Code
Sprocket holes toward
rear of reel
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