www.vishay.com For technical questions, contact: thinfilmchip@vishay.com Document Number: 28711
178 Revision: 23-Nov-09
TCT 0603, TCU 0805, TCA 1206
Vishay Beyschlag
Trimmable Flat Chip Resistors
TCT 0603, TCU 0805 and TCA 1206 trimmable flat chip
resistors are best suited whenever stable circuit adjustment
is required and potentiometers will be either too expensive,
too unstable or too large. The trimming is done directly on the
printed-circuit board (PCB) using a state of the art laser
trimming system e.g. with YAG or CO2 laser source. Typical
applications include any type of electronic sensors,
oscillators or electronic circuits which have to be trimmed to
certain functional parameters after PCB assembly.
FEATURES
•Designed for state of the art laser trimming
•Enables economical functional circuit adjustment
•Low TCR ± 50 ppm/K available
•Excellent stability ≤ ± 0.25 % (1000 h rated power at 70 °C)
•Wide ohmic range: 10 Ω to 1 MΩ
•Lead (Pb)-free solder contacts
•Compliant to RoHS directive 2002/95/EC
APPLICATIONS
•Electronic sensors
•Oscillators
•Electronic circuits
Notes
(1) The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow support of the
printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded.
(2) All given figures are valid for the untrimmed resistor
• These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift increasing over
operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime.
METRIC SIZE
INCH: 0603 0805 1206
METRIC: RR 1608M RR 2012M RR 3216M
TECHNICAL SPECIFICATIONS
DESCRIPTION TCT 0603 TCU 0805 TCA 1206
Metric size RR 1608M RR 2012M RR 3216M
Resistance range 10 Ω to 1 MΩ10 Ω to 1 MΩ10 Ω to 1 MΩ
Resistance tolerance + 0/- 30 %; + 0/- 20 %; + 0/- 10 % + 0/- 20 %
Temperature coefficient ± 100 ppm/K; ± 50 ppm/K ± 100 ppm/K
Operation mode Standard Power Standard Power Standard
Climatic category
(LCT/UCT/days) 55/125/56 55/155/56 55/125/56 55/155/56 55/125/56
Rated dissipation, P70 (1) 0.1 W 0.125 W 0.125 W 0.2 W 0.25 W
Operating voltage, Umax. AC/DC 75 V 150 V 200 V
Film temperature 125 °C 155 °C125°C 155 °C 125 °C
Max. resistance change at P70
for resistance range,
|ΔR/R| max., after:
10 Ωto 1 MΩ10 Ωto 1 MΩ10 Ωto 1 MΩ
1000 h ≤ 0.25 % ≤ 0.5 % ≤ 0.25 % ≤ 0.5 % ≤ 0.25 %
8000 h ≤ 0.5 % ≤ 1.0 % ≤ 0.5 % ≤ 1.0 % ≤ 0.5 %
225 000 h ≤ 1.5 % - ≤ 1.5 % - ≤ 1.5 %
Insulation voltage:
1 min; Uins 100 V 200 V 300 V
Continuous 75 V 75 V 75 V
Failure rate: FITobserved ≤ 0.1 x 10-9/h
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TCT 0603, TCU 0805, TCA 1206
Trimmable Flat Chip Resistors Vishay Beyschlag
Notes
(1) Products can be ordered using either the PRODUCT DESCRIPTION or the PART NUMBER
(2) A temperature coefficient ± 100 ppm/K is marked -00
Note
(3) Resistance values to be selected from E12 (preferred) or E24 series
Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.
PART NUMBER AND PRODUCT DESCRIPTION (1)
PART NUMBER: TCT06030C4702XP500
MODEL/SIZE SPECIAL CHARACTER TCR VALUE TOLERANCE PA CK A G I NG SPECIAL
TCT0603
TCU0805
TCA1206
0 = Neutral C = ± 50 ppm/K
B = ± 100 ppm/K
3 digit value
1 digit multiplier
MULTIPLIER
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
5 = *105
W = + 0/- 30 %
X = + 0/- 20 %
Y = + 0/- 10 %
P5
PW
Up to 2 digits
00 = Standard
PRODUCT DESCRIPTION: TCT 0603 - 50 - 20 % P5 47K
TCT 0603 - 50 - 20 % P5 47K
MODEL SIZE TCR (2) TOLERANCE PAC K A G I N G RESISTANCE VALUE
TCT
TCU
TCA
0603
0805
1206
± 50 ppm/K
± 100 ppm/K
- 10 % = + 0/- 10 %
- 20 % = + 0/- 20 %
- 30 % = + 0/- 30 %
P5
PW
47K = 47 kΩ
1M = 1 MΩ
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
DESCRIPTION RESISTANCE VALUE (3)
TCR TOLERANCE TCT 0603 TCU 0805 TCA 1206
± 100 ppm/K
+ 0/- 30 % 10 Ω to 1 MΩ10 Ω to 1 MΩ−
+ 0/- 20 % 10 Ω to 1 MΩ10 Ω to 1 MΩ10 Ω to 1 MΩ
+ 0/- 10 % 10 Ω to 1 MΩ10 Ω to 1 MΩ−
± 50 ppm/K
+ 0/- 30 % 100 Ω to 1 MΩ100 Ω to 1 MΩ−
+ 0/- 20 % 100 Ω to 1 MΩ100 Ω to 1 MΩ−
+ 0/- 10 % 100 Ω to 1 MΩ100 Ω to 1 MΩ−
PACKAGING
MODEL
REEL
PIECES/PAPER TAPE ON REEL CODE
TCT 0603
5000 P5
20 000 PW
TCU 0805
5000 P5
20 000 PW
TCA 1206 5000 P5
TCT06030C4702XP500
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TCT 0603, TCU 0805, TCA 1206
Vishay Beyschlag Trimmable Flat Chip Resistors
DIMENSIONS
SOLDER PAD DIMENSIONS
Note
• The rated dissipation applies only if the permitted film temperature is not exceeded. Furthermore, a high level of ambient temperature or of
power dissipation may raise the temperature of the solder joint, hence special solder alloys or board materials may be required to maintain the
reliability of the assembly.
Specified power rating above 125 °C requires dedicated heat-sink pads, which depend on board materials.
The given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards IEC 61188-5-x, or in
publication IPC-7351. They do not guarantee any supposed thermal properties, particularly as these are also strongly influenced by many other
parameters.
Still, the given solder pad dimensions will be found adequate for most general applications, e.g. those referring to “standard operation mode”.
Please note however that applications for “power operation mode” require special considerations for the design of solder pads and adjacent
conductor areas.
DIMENSIONS AND MASS
TYPE H
(mm)
L
(mm)
W
(mm)
WT
(mm)
T1
(mm)
T2
(mm)
MASS
(mg)
TCT 0603 0.45 + 0.1/- 0.05 1.55 ± 0.05 0.85 ± 0.1 > 75 % of W 0.3 + 0.15/- 0.2 0.3 + 0.15/- 0.2 1.9
TCU 0805 0.45 + 0.1/- 0.05 2.0 ± 0.1 1.25 ± 0.15 > 75 % of W 0.4 + 0.1/- 0.2 0.4 + 0.1/- 0.2 4.6
TCA 1206 0.45 + 0.1/- 0.05 3.2 + 0.1/- 0.2 1.6 ± 0.15 > 75 % of W 0.5 ± 0.25 0.5 ± 0.25 9.2
RECOMMENDED SOLDER PAD DIMENSIONS
TYPE
WAVE SOLDERING REFLOW SOLDERING
G
(mm)
Y
(mm)
X
(mm)
Z
(mm)
G
(mm)
Y
(mm)
X
(mm)
Z
(mm)
TCT 0603 0.55 1.10 1.10 2.75 0.65 0.70 0.95 2.05
TCU 0805 0.80 1.25 1.50 3.30 0.90 0.90 1.40 2.70
TCA 1206 1.40 1.50 1.90 4.40 1.50 1.15 1.75 3.80
T2
T1
L
H
WWT
GX
Y
Z
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Revision: 23-Nov-09 181
TCT 0603, TCU 0805, TCA 1206
Trimmable Flat Chip Resistors Vishay Beyschlag
DESCRIPTION
Production is strictly controlled and follows an extensive
set of instructions established for reproducibility. A newly
developed cermet layer is deposited onto a high-grade
(Al2O3) ceramic substrate and conditioned to achieve the
desired temperature coefficient. Pre-contacts are built on
both sides of the substrate. The resistor elements are
covered by glass for superior electrical, mechanical and
climatic protection. The terminations receive a final pure
tin-on-nickel plating.
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual chip resistors. Only accepted products are laid
directly into the paper tape in accordance with
IEC 60286-3 (3).
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic soldering
using wave, reflow or vapour phase as shown in
IEC 61760-1 (3). The encapsulation is resistant to all cleaning
solvents commonly used in the electronics industry,
including alcohols, esters and aqueous solutions. The
suitability of conformal coatings, if applied, shall be qualified
by appropriate means to ensure the long-term stability of the
whole system.
The resistors are RoHS compliant; the pure tin plating
provides compatibility with lead (Pb)-free and
lead-containing soldering processes. Solderability is
specified for 2 years after production or requalification. The
permitted storage time is 20 years. The immunity of the
plating against tin whisker growth has been proven under
extensive testing.
All products comply with the GADSL (1) and the
CEFIC-EECA-EICTA (2) list of legal restrictions on
hazardous substances. This includes full compliance with
the following directives:
• 2000/53/EC End of Vehicle life Directive (ELV) and
Annex II (ELV II)
• 2002/95/EC Restriction of the use of Hazardous
Substances directive (RoHS)
• 2002/96/EC Waste Electrical and Electronic Equipment
Directive (WEEE)
APPROVALS
The resistors are tested in accordance with EN 140401-802
which refers to EN 60115-1 and EN 140400. The detail
specification refers to the climatic category 55/125/56, which
relates to the “Standard operation mode” of this datasheet.
Vishay BEYSCHLAG has achieved “Approval of
Manufacturer” in accordance with EN 100114-1.
Notes
(1) Global Automotive Declarable Substance List, see www.gadsl.org
(2) CEFIC (European Chemical Industry Council), EECA (European Electronic Component Manufacturers Association), EICTA (European trade
organisation representing the information and communications technology and consumer electronics), see www.eicta.org/index.php?id=995
→ issue → environment policy → chemicals → chemicals for electronics
(3) The quoted IEC standards marked with an asterisk (*) are also released as EN standards with the same number and identical contents
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182 Revision: 23-Nov-09
TCT 0603, TCU 0805, TCA 1206
Vishay Beyschlag Trimmable Flat Chip Resistors
FUNCTIONAL PERFORMANCE
DIMENSIONS OF THE PERMISSIBLE TRIMMING AREA IN MILLIMETERS
TYPE L W T Ltrim Wtrim
TCT 0603 1.6 0.8 0.3 0.5 0.5
TCU 0805 2.0 1.2 0.3 0.8 0.8
TCA 1206 3.2 1.6 0.4 1.4 1.0
TC A 12 06
TC T 06 03
TCU 08 05
0.1
0.2
W
Power Dissipation
100 150
- 50
50
0
70
Ambient Te mperature
amb
ϑ
°C
0
P
Derating - Standard Operation
TC T 06 03
T CU 0805
0.1
0.2
W
Power Dissipation
100 150
- 50
50
0
70
°C
0
Ambient Te mperature
amb
ϑ
P
Derating - Power Operation
Pre-contact,
hidden
T
L
W
Ltrim
Tinned contact,
electroplated, visib le
Usable trimming area
Wtrim
Permissible Trimming Area
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Revision: 23-Nov-09 183
TCT 0603, TCU 0805, TCA 1206
Trimmable Flat Chip Resistors Vishay Beyschlag
TESTS AND REQUIREMENTS
All tests are carried out in accordance with the following
specifications:
EN 60115-1, generic specification (includes tests)
EN 140400, sectional specification (includes schedule for
qualification approval)
EN 140401-802, detail specification (includes schedule for
conformance inspection)
The components are approved in accordance with the
European CECC-system, where applicable. The following
table contains only the most important tests. For the full test
schedule refer to the documents listed above. The testing
also covers most of the requirements specified by
EIA/IS-703 and JIS-C-5202.
The tests are carried out in accordance with IEC 60068 and
under standard atmospheric conditions in accordance with
IEC 60068-1, 5.3. Climatic category LCT/UCT/56 (rated
temperature range: Lower category temperature, upper
category temperature; damp heat, long term, 56 days) is
valid.
Unless otherwise specified the following values apply:
Temperature: 15 °C to 35 °C
Relative humidity: 45 % to 75 %
Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar).
The components are mounted for testing on boards in
accordance with EN 60115-1, 4.31 unless otherwise
specified.
The requirements stated in the Test Procedures and
Requirements table are based on the required tests and
permitted limits of EN 140401-802. However, some
additional tests and a number of improvements against those
minimum requirements have been included.
TEST PROCEDURES AND REQUIREMENTS (1)
EN
60115-1
CLAUSE
IEC
60068-2 TEST
METHOD
TEST PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE
(ΔR)
Stability for product types:
TCT 0603 10 Ω to 1 MΩ
TCU 0805 10 Ω to 1 MΩ
TCA 1206 10 Ω to 1 MΩ
4.5 - Resistance
+ 0/- 30 % R;
+ 0/- 20 % R;
+ 0/- 10 % R
4.8.4.2 - Temperature
coefficient
At (20/- 55/20) °C and
(20/125/20) °C
± 100 ppm/K;
± 50 ppm/K
4.25.1
-Endurance at 70 °C:
Standard operation mode
U= or U = Umax.;
whichever is the less severe;
1.5 h on; 0.5 h off;
70 °C; 1000 h ± (0.25 % R+0.05 Ω)
70 °C; 8000 h ± (0.5 % R+0.05 Ω)
-Endurance at 70 °C:
Power operation mode
U= or U = Umax.;
whichever is the less severe;
1.5 h on; 0.5 h off;
70 °C; 1000 h ± (0.5 % R+0.05 Ω)
70 °C; 8000 h ± (1 % R+0.05 Ω)
4.25.3 −Endurance at upper category
temperature
125 °C; 1000 h ± (0.25 % R+0.05 Ω)
155 °C; 1000 h ± (0.5 % R+0.05 Ω)
P70 x R
P70 x R
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TCT 0603, TCU 0805, TCA 1206
Vishay Beyschlag Trimmable Flat Chip Resistors
4.24 78 (Cab) Damp heat,
steady state
(40 ± 2) °C;
56 days;
(93 ± 3) % RH
± (0.25 % R+0.05 Ω)
4.23 Climatic sequence:
4.23.2 2 (Ba) dry heat UCT; 16 h
4.23.3 30 (Db) damp heat, cyclic
55 °C; 24 h;
> 90 % RH;
1 cycle
4.23.4 1 (Aa) cold LCT; 2 h
4.23.5 13 (M) low air pressure
8.5 kPa;
2h;
25 ± 10 °C
4.23.6 30 (Db) damp heat, cyclic
55 °C; 5 days;
> 95 % to 100 % RH;
5 cycles
LCT = - 55 °C;
UCT = 125 °C
± (0.25 % R+0.05 Ω)
- 1 (Aa) Cold - 55 °C; 2 h ± (0.25 % R+0.05Ω)
4.19 14 (Na) Rapid change of temperature
30 min at LCT and 30 min at UCT;
LCT = - 55 °C;
UCT = 125 °C;
5 cycles
± (0.25 % R+0.05Ω)
no visible damage
LCT = - 55 °C;
UCT = 125 °C;
1000 cycles
± (0.5 % R+0.05Ω)
no visible damage
4.13 -
Short time overload;
standard operation mode
U= 2.5 x or
U = 2 x Umax.;
whichever is the less severe;
5 s
± (0.25 % R+0.05 Ω)
Short time overload;
power operation mode ± (0.5 % R+0.05 Ω)
4.22 6 (Fc) Vibration
Endurance by sweeping;
10 Hz to 2000 Hz;
no resonance;
amplitude ≤ 1.5 mm or ≤ 200 m/s2; 6 h
± (0.25 % R+0.05 Ω);
no visible damage
4.17.2 58 (Td) Solderability
Solder bath method;
SnPb40;
non-activated flux
(215 ± 3) °C; (3 ± 0.3) s Good tinning
(≥ 95 % covered);
no visible damage
Solder bath method;
SnAg3Cu0.5 or SnAg3.5;
non-activated flux
(235 ± 3) °C; (2 ± 0.2) s
4.18.2 58 (Td) Resistance to
soldering heat
Solder bath method;
(260 ± 5) °C; (10 ± 1) s
± (0.25 % R+ 0.05 Ω);
no visible damage
4.29 45 (XA) Component solvent
resistance
Isopropyl alcohol + 50 °C;
method 2 No visible damage
TEST PROCEDURES AND REQUIREMENTS (1)
EN
60115-1
CLAUSE
IEC
60068-2 TEST
METHOD
TEST PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE
(ΔR)
Stability for product types:
TCT 0603 10 Ω to 1 MΩ
TCU 0805 10 Ω to 1 MΩ
TCA 1206 10 Ω to 1 MΩ
P70 x R
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TCT 0603, TCU 0805, TCA 1206
Trimmable Flat Chip Resistors Vishay Beyschlag
Note
(1) All given figures are valid for the untrimmed resistor
12NC INFORMATION FOR HISTORICAL CODING REFERENCE ONLY
•The resistors have a 12 digit numeric code starting with
2312.
•The subsequent 4 digits indicate the resistor type,
specification and packaging; see the 12NC table.
•The remaining 4 digits indicate the resistance value:
- The first 3 digits indicate the resistance value.
- The last digit indicates the resistance decade. in
accordance with the 12NC indicating resistance decade
table
.
Last digit of 12NC indicating resistance decade
12NC example
The 12NC of a TCT 0603 resistor, value 47 kΩ and TCR 50
with + 0/- 20 % tolerance, supplied in cardboard tape of
5000 units per reel is: 2312 300 64703.
4.32 21 (Ue3) Shear (adhesion) RR 1608M; 9 N No visible damage
RR 2012M and RR 3216M; 45 N
4.33 21 (Ue1) Substrate bending Depth 2 mm,
3 times
± (0.25 % R+ 0.05 Ω)
no visible damage,
no open circuit in bent position
4.7 - Voltage proof URMS = Uins; (60 ± 5) s No flashover or breakdown
4.35 - Flammability IEC 60695-2-2, needle flame test; 10 s No burning after 30 s
TEST PROCEDURES AND REQUIREMENTS (1)
EN
60115-1
CLAUSE
IEC
60068-2 TEST
METHOD
TEST PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE
(ΔR)
Stability for product types:
TCT 0603 10 Ω to 1 MΩ
TCU 0805 10 Ω to 1 MΩ
TCA 1206 10 Ω to 1 MΩ
RESISTANCE DECADE LAST DIGIT
10 Ω to 99.9 Ω9
100 Ω to 999 Ω1
1 kΩ to 9.99 kΩ2
10 kΩto 99.9 kΩ3
100 kΩ to 999 kΩ4
1MΩ to 9.99 MΩ5
12NC - Resistor type and packaging
DESCRIPTION CODE 2312 ... .....
CARDBOARD TAPE ON REEL
TYPE TCR TOL. P5
5000 UNITS
PW
20 000 UNITS
TCT 0603
± 100 ppm/K
+ 0/- 30 % 300 1.... 305 1....
+ 0/- 20 % 300 2.... 305 2....
+ 0/- 10 % 300 3.... 305 3....
± 50 ppm/K
+ 0/- 30 % 300 5.... 305 5....
+ 0/- 20 % 300 6.... 305 6....
+ 0/- 10 % 300 7.... 305 7....
TCU 0805
± 100 ppm/K
+ 0/- 30 % 320 1.... 325 1....
+ 0/- 20 % 320 2.... 325 2....
+ 0/- 10 % 320 3.... 325 3....
± 50 ppm/K
+ 0/- 30 % 320 5.... 325 5....
+ 0/- 20 % 320 6.... 325 6....
+ 0/- 10 % 320 7.... 325 7....
TCA 1206 ± 100 ppm/K + 0/- 20 % 340 2.... 345 2....
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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Legal Disclaimer Notice
Vishay
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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