Precision Resistor Networks
SR04 & S4 Series
Description
The SR04 & S4 Series resistor networks are precision-class metal film components featuring tight resistance tolerance
and low values of temperature coefficient of resistance (TCR). This resistor network package provides both excellent
resistance ratio and TCR tracking.
Electrical
Power Derating Curve
Parameter SR04 series
Resistance range 10 - 10K
(See Tolerance Table below for further
details)
Power rating per package 0.1 watts @125°C
(refer to derating curve)
Operating temperature - 40 to +175°C
Storage temperature - 55 to +125°C
Tolerance Table
Resistance Value Range
A
bs. Resistance
Tolerance
A
vailable
A
bsolute TCR
Tolerance
A
vailable
10 - <20 ±0.1% ± 25 ppm/°C
20 - <100 ±0.05% ± 25 ppm/°C
100 - 5K ±0.01% ± 5, 10 or
25 ppm/°C
100 - 10K ±0.01% ± 10 or 25 ppm/°C
Mechanical
Marking
For Leaded Products (63Sn / 37 Pb Terminals):
Marking shall be on the top (pattern) side of the product and
shall include:
The TFT "Don't Stop" logo
A
one digit monthly date cod
e
A
pin one identifie
r
For Lead Free Products (100% Sn Terminals):
Marking shall be on the top (pattern) side of the product and
shall include:
The TFT "Don't Stop" logo
A
one digit monthly date cod
e
(underlined date code signifies lead free)
A
pin one identifie
r
Land Pattern
Packaging
A
dditional Comments:
A
ll taping done in accordance with EIA 481 standards
Pieces taped with the green ( Marking )side up and showing through cover tape. The pin "1" identifier is locate in the corner on the end of the piece
closest to the sprocket hole in the carrier tape
Labels will contain the TFT part number and quantity of pieces taped
Carrier Tape - Part # 3M #US017931.
Part Number
For Leaded Products (63Sn / 37Pb Terminal Finish):
Form
Factor Absolute
Resistance
Tolerance
Resistance
Ratio
Tolerance
Resistance Value Absolute TCR
Tolerance
(see note 4)
TCR Tracking
Tolerance
(see note 2,3)
Packaging
(Tape and Reel)
SR04 T = 0.01%
Q = 0.02%
A = 0.05%
B = 0.10%
C = 0.25%
D = 0.50%
F = 1.00%
Q = 0.02%
A = 0.05%
B = 0.10%
C = 0.25%
D = 0.50%
Z = NONE
XXXX / XXXX
R1 Value R2 Value
The first 3 digits are significant
figures. The last digit specifies the
number of zeros. For values <100
ohms, R is used to designate the
decimal position.
Multiple values are separated by a
slash (/).
e.g: 1001 = 1K
75R0 = 75
1001/1002 = 1K/10K
Y = 10 PPM/°C
E = 25 PPM/°C X = 1 PPM/°C
R = 2 PPM/°C
M = 5 PPM/°C
1 = 100
5 = 500
A = 1000
For Lead Free Products (100% Sn Terminal Finish):
Form
Factor Absolute
Resistance
Tolerance
Resistance
Ratio
Tolerance
Resistance Value Absolute TCR
Tolerance
(see note 4)
TCR Tracking
Tolerance
(see note 2,3)
Packaging
(Tape and Reel) Lead Free
Designator
S4 T = 0.01%
Q = 0.02%
A = 0.05%
B = 0.10%
C = 0.25%
D = 0.50%
F = 1.00%
Q = 0.02%
A = 0.05%
B = 0.10%
C = 0.25%
D = 0.50%
Z = NONE
XXXX / XXXX
R1 Value R2 Value
The first 3 digits are significant
figures. The last digit specifies the
number of zeros. For values <100
ohms, R is used to designate the
decimal position.
Multiple values are separated by a
slash (/).
e.g: 1001 = 1K
75R0 = 75
1001/1002 = 1K/10K
Y = 10 PPM/°C
E = 25 PPM/°C X = 1 PPM/°C
R = 2 PPM/°C
M = 5 PPM/°C
1 = 100
5 = 500
A = 1000
- C
Note 1: Refer to tolerance table above.
Note 2: 1 ppm/°C TCR tracking available only with identical resistances.
Note 3: Ratio values greater than 50:1 only available in ± 5 PPM/°C TCR tracking tolerance.
Note 4: Consult factory for ± 5 PPM/°C absolute TCR availability.
Examples:
SR04TQ1001/2001YRA = SR04 package, ±0.01% absolute resistance, ±0.02% resistance ratio, 1K/2K, ±10 ppm/°C absolute TCR, ±2 ppm/°C TCR
tracking, 1000 piece tape and reel
S4QQ50R0/1001EM5-C = S4 package, ±0.02% absolute resistance, ±0.02% resistance ratio, 50/1K, ±25 ppm/°C absolute TCR, ±5 ppm/°C TCR
tracking, 500 piece tape and reel, lead free designator
1980 Commerce Drive, North Mankato, MN. 56001 (507) 625-8445
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