PTF
Vishay Dale
Metal Film Resistors, High Precision, High Stability
FEATURES
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Extremely low temperature coefficient of resistance
Very low noise and voltage coefficient
Very good high frequency characteristics
Can replace wirewound bobbins
Proprietary epoxy coating provides superior
moisture protection
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For surface mount product, see Vishay Dale’s PSF
datasheet
Compliant to RoHS Directive 2002/95/EC
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING (3) LIMITING ELEMENT TEMPERATURE
RESISTANCE
RANGE
Ω
GLOBAL HISTORICAL
TOLERANCE
ꢂ
P85 °C
VOLTAGE MAX. (1)
V
COEFFICIENT
ꢀꢀmꢁ°C
MODEL
MODEL
W
PTF51
PTF56
PTF65
PTF-51
PTF-56
PTF-65
0.05
0.125
0.25
200
300
500
5, 10, 15
5, 10, 15
5, 10, 15
0.02, 0.05, 0.1, 0.25, 0.5, 1
0.01, 0.02, 0.05, 0.1, 0.25, 0.5, 1
0.05, 0.1, 0.25, 0.5, 1
15 to 100K
15 to 500K
15 to 1M
Notes
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Marking: Print-marked-model, value, tolerance, TC, date code
DSCC has created a drawing to support the need for a precision axial-leaded product. Vishay Dale is listed as a resource on this drawing as
follows:
DSCC
DRAWING
NUMBER
POWER RATING
RESISTANCE
RANGE
Ω
TEMPERATURE MAXIMUM WORKING
VISHAY DALE
MODEL
TOLERANCE
ꢂ
P85 °C
COEFFICIENT
ꢀꢀmꢁ°C
VOLTAGE (1)
V
W
PTF56..31,
89088
90038
0.100
0.250
15 to 100K
0.01, 0.05, 0.1, 0.5, 1
0.05, 0.1, 0.5, 1
5, 10
5, 10
200
200
PTF56..32 (2)
PTF65..16,
15 to 100K
PTF65..14 (2)
This drawing can be viewed at: www.dscc.dla.mil/Programs/MilSpec/ListDwgs.asp?DocType=DSCCdwg
(1) Continuous working voltage shall be P x R or maximum working voltage, whichever is less.
(2) Hot solder dipped leads
(3) For operation of the PTF resistors at higher power ratings, see the Load Life Shift Due to Power and Derating table. This table gives a
summary of the effects of using the PTF product at the more common combinations of power rating and case size, as well as quantifies the
load life stability under those conditions.
TEMPERATURE COEFFICIENT CODES
GLOBAL TC CODE
HISTORICAL TC CODE
TEMPERATURE COEFFICIENT
5 ppm/°C
Z
Y
X
T-16
T-13
T-10
10 ppm/°C
15 ppm/°C
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: PTF5620K500BYRE (ꢀreferred ꢀart numbering format)
P
T
F
5
6
2
0
K
5
0
0
B
Y
R
E
GLOBAL
MODEL
PTF51
PTF56
PTF65
RESISTANCE
VALUE
R = Ω
K = kΩ
M = MΩ
15R000 = 15 Ω
TOLERANCE
TEMP.
COEFFICIENT
Z = 5 ppm
Y = 10 ppm
X = 15 ppm
0 = Special
PACKAGING
SPECIAL
CODE
T = 0.01 % (4)
Q = 0.02 % (4)
A = 0.05 %
Blank = Standard
(Dash number)
(Up to 3 digits)
1 to 999
rom
as applicable
EK = Lead (Pb)-free, bulk
EA = Lead (Pb)-free, T/R (full)
EB = Lead (Pb)-free,
T/R (1000 pieces)
BF = Tin/lead, bulk
RE = Tin/lead, T/R (full)
R6 = Tin/lead, T/R (1000 pieces)
B = 0.1 %
C = 0.25 %
D = 0.5 %
F = 1 %
F
500K00= 500 kΩ
1M0000= 1.0 MΩ
Historical Part Number examꢀle: PTF-5620K5BT-13R36 (will continue to be acceꢀted)
PTF-56
20K5
B
T-13
R36
HISTORICAL
MODEL
RESISTANCE
VALUE
TOLERANCE
TEMP.
COEFFICIENT
PACKAGING
CODE
Note
(4) Historical tolerance codes were BB for 0.01 % and BC for 0.02 %
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com
86
For technical questions, contact: ff2aresistors@vishay.com
Document Number: 31019
Revision: 18-Nov-10