E1W404 Datasheet, PDF (2/4 Pages) List of Unclassifed Manufacturers – Variable Capacitance Diode

TWPEC
1W404
Product Name and Package Specification for the 1W404
According to the classification number for the combination of capacitance deviations (hereafter ΔC), assembly
method and automatic mounting equipment section, the following product names are assigned.
1W404 ― M 020 A ― T8 A
Note 1:Package specification as ordered by customer
*Taping direction *T8 only to consolidate specifications
Special selection symbol
Note 2: ΔC kit number
Note 3:Assembly method M=MAP
Note 1) In taping packaging of products groups according to the △C classification, products must be
divided according to the group. If taping is performed without grouping into categories,
products from two different groups may be mounted on the same tuner, so that △C cannot be
assured during tuning, making tuning defective.
A: The SSVC (4000 pieces/reel) product is put on the taping reel with every other empty
section for SSVC .and 9 empty sections are to be provided at each ranking section for SSVC
4000pieces/reel.
E: The SSVC (8000 pieces/reel) product is put on the taping reel with every other empty
section for SSVC .and 4 empty sections are to be provided at each ranking section for SSVC
8000pieces/reel.
Note 2) △C kit number
When taping each group, taping is performed in kit number multiples.
001; Incomplete kit (△C not guaranteed)
004; 4 kits
020; 20 kits
Recommended kit number; 4 and 20
Other) Minimum number of kits per group is 240 (60 or more at the beginning of the carrier
tape). Up to 9 ranks for SSVC 4000pieces/reel, and 12 ranks for SSVC 8000 pieces/reel.
Note 3) “MAP” is the method where the neighboring chips are assembled continuously in order to
enhance the concentration of the capacitance deviation in a matching group.
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