|
|
| ¡@ |
Specification of Semi-finished Products
|
|
| ¡@ |
The semi-finished products
indicate either film-coated rods or sorted cap rods.
These semi-finished objects can be processed further
by steps of film-cutting, lead wire welding and resin
coating to produce the resistors.
Futaba can provide both film-coated rods and sorted
cap rods. Based on the aluminum oxide content in the
sintering formulation of the rods, the rods can be
categorized into 75% and 85%. Thought this content
is not fixed and we can always customize to fulfill
customer¡¦s needs. There are two kinds of resistive
film available: Ni-P alloy film and Tin oxide film.
The size of the rods available is flexible and can
be customer made.
|
| ¡»The 16 alphanumeric digits code for Futaba's semi-finished products are as following¡G |
|
MO
|
Y85
|
1752
|
¡Ï
|
2R02R2
|
|
(Coating)
|
(Rod Type)
|
(Dimension)
|
(Capping)
|
(Resistance range)
|
|
| ¡»Illustration of alphanumeric code¡G |
(1). Coating (2 digits):
MO=Tin oxide film; MN=Ni-P alloy film
(2). Rod type (3 digits): Based on the codes provided
by the rods supplier
(3). Dimension (4 digits): first two digits indicate
diameter and the last two digits indicate length
(4). Capping (1 digit): ¡§+¡¨= sorted cap rods; ¡§-¡¨= film-coated
rods
(5). Resistance range (6 digits): The first and the
last three digits show the resistance range.
¡@ <The detail tables
for film-coated rods and sorted cap rods are listed
table-7 and ¡V8.
|
| ¡»Specification and testing methods of semi-finished products: are listed in Table-1¡G |
|
Test |
Specification |
Test procedure |
|
TCR (Temperature coefficient) |
¡Ó300PPM/¢J¥H¤º |
RT+100¢J,30¡ã45 min.
Refer to JIS C 5202.5.2 |
|
SOL (based on rod type)
|
70% :¡Ó(1%+0.05£[)
85% :¡Ó(2%+0.1£[) |
6.25PR ,5 Sec
Refer to JIS C 5202.5.5 |
|
Pulling strength
(for cap rods only)
|
1.3x2.7 (¡Ù2Kg)
2x8;2.5x8 (¡Ù5Kg)
3x10, 3.35x10, 3.5x10 (¡Ù10Kg)
4x14, 4.5x14, 4x22 (¡Ù15Kg)
7x23, 7x28 (¡Ù20Kg)
|
Refer to JIS C 5202.6.1 |
|
¡@ |
______________________________________________________________________________
 |
|
