Trimmable Chip Resistors
Type TCR Series
Type TCR Series
Characteristics -
Electrical
Rated Power @ 70°C (W):
Resistance Range (Ohms) Min:
Max:
Selection Series
Tolerance (%):
Code Letter:
Temperature Coefficient (ppm/°C):
Operating Temperature Range (°C):
Climatic Category:
Limiting Element Voltage (V):
Insulation Resistance Dry Min (M ohms):
0805
0.1
1
9.1
10
4M7
1
9.1
1206
0.125
10
4M7
-200/+500
Precious metal terminations are screen
printed onto a ceramic base and fired.
The resistive element is screen printed
and fired and the passivation layer
added. The pre-scribed tile is broken
into strips, the end plating is fired on
and the strips broken into individual
components. Final termination is made
by electroplating.
E24
±15 or 0/-30
L
P
± 200
-200/+500
-55 to +125
55/125/56
150
1000
200
± 200
Dimensions
Key Features
I
TCR chip resistors are
suitable for most
applications, including
high frequency operation,
owing to the short lead
structure and low
capacitance.
The TCR series of chip
resistors is designed to
be used in circuits where
variable resistors might
otherwise be used.
The resistance film and the
coating have been specified
to permit YAG laser trimming.
Case sizes 0805 and 1206.
Style
0805
1206
L
2.0 ± 0.1
3.2 ± 0.15
W
1.25± 0.10
1.6 ± 0.15
H
0.55 ± 0.1
0.55 ± 0.1
A
0.71 ± 0.1
0.95 ± 0.1
D
0.66 ± 0.1
1.30 ± 0.1
c
0.4 ± 0.2
0.5 ± 0.25
d
0.4± 0.2
0.5± 0.25
I
Power Derating Curve
100
80
Rated Power (%)
60
40
20
0
0
20
40
60
80
100
120 125
Ambient Temperature (°C)
I
I
Marking
TCR series resistors are not marked.
Mounting
The resistors are suitable for processing on automatic insertion equipment.
Storage
Unopened reels should be stored within a temperature range of +5 °C to +25 °C, separated from any dust, chemicals and
solvent based materials. Non-adherence to this procedure could effect the solderability of this product.
Literature No. 1773287
Issued: 04-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
Trimmable Chip Resistors
Type TCR Series
Performance Characteristics
The evaluation of the performance characteristics is carried out with reference to IEC
specifications QC 400 000 and QC 400 600
TEST REF
4.23
4.24
4.25.1
4.25.3
TEST REF
4.13
4.32
4.33
4.19
4.18
Long Term Tests ± (5% + 0.1 ohm)
Climatic sequence
Damp heat, steady state
Endurance at 70°C
Endurance at 125°C
Short Term Tests ± (1% + 0.05 ohm)
Overload
Adhesion
Bond strength of end face plating
Rapid change of temperature
Resistance to soldering heat
How to Order
Orders for these components should include the following information:-
Type, tolerance code letter and value e.g.
TCR0805L470K.
Literature No. 1773287
Issued: 04-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com