Document Number: 51026 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 26-Jun-07 73
T93
Vishay Sfernice
3/8" Square Multi-Turn Cermet Trimmers
The T93 is a small size trimmer - 3/8" x 3/8" x 3/16" - answering
PC board mounting requirements.
Five versions are available which differ by the position of the
control screw in relation to the PC board plane and by the spacing
of the terminals.
Excellent operational stability is provided by the use of a cermet
element.
FEATURES
•Industrial Grade
•0.5 W at 70 °C
•Tests according to CECC 41 000
•Contact resistance variation < 1 % typical
•Lead (Pb)-free and RoHS compliant
DIMENSIONS in millimeters
CIRCUIT DIAGRAM
* to be measured at base level Tolerance unless otherwise specified ± 0.5
RoHS
COMPLIANT
2.3 ± 0.2*
2.54
2.54
slot 0.6 x 0.6
9.8 max 5 ± 1
ø 0.5
a
b
c
1.3
ø 2.2
7.9 ± 0.2
0.5
a
b
c
0.6 ± 0.2*
2.54*
2.54*
slot 0.6 x 0.6
2.54
9.8 max 5 ± 1
ø 0.5
a
b
c
1.3
ø 2.2
7.9 ± 0.2
0.5
9.7 max
5 max
1.2 ± 0.2
a
b
c
2.3 ± 0.2*
2.54*
2.54*
9.8 max 5 ± 1
ø 0.5
a
b
c
slot 0.6 x 0.6
ø 2.2
1.3
0.5
9.7 max
5 max
1.2 ± 0.1
1.6 ± 0.1
a
b
c
0.6 ± 0.2*
2.54*
2.54*
2.54
9.8 max 5 ± 1
a
slot 0.6 x 0.6
ø 2.2
1.3
ø 0.5
b
c
0.5
9.7 max
5 max
1.2 ± 0.1
1.6 ± 0.1
a
b
c
4.8 ± 0.2*
slot 0.6 x 0.6
2.54*
2.54*
2.54*
9.7 max
1.3
ø 2.2
c
b
a
T93XA
T93XB
T93YA
T93YB
T93Z
9.7 max
5 max
1.2 ± 0.2
5.2 max
5 ± 1
ø 0.5
0.5
Base level
1.2 ± 0.1
1.3 ± 0.1
9.7 max
c
b
a
ac
b
cw
(2)
(3)
(1)
Terminal Spacing
on a 2.54 PCB
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 51026
74 Revision: 26-Jun-07
T93
Vishay Sfernice 3/8" Square Multi-Turn Cermet Trimmers
MECHANICAL SPECIFICATIONS
Mechanical Travel 23 turns ± 5
Operating Torque (max. Ncm) 1.5
End Stop Torque clutch action
Net Weight Approx. 0.82 g
Wiper (actual travel)
Positioned at approx.
50 %
ENVIRONMENTAL SPECIFICATIONS
Temperature Range - 55 °C to + 155 °C
Climatic Category 55/125/56
Sealing fully sealed
container IP67
POWER RATING CHART
ELECTRICAL SPECIFICATIONS
Resistive Element cermet
Electrical Travel 21 turns ± 2
Resistance Range 10 Ω to 2.2 MΩ
Standard series E3 1 - 2.2 - 4.7 and on request 1 - 2 - 5
Tolerance Standard ± 10 %
On Request ± 5 %
Power Rating Linear 0.5 W at + 70 °C
Logarithmic not applicable
Temperature Coefficient See Standard Resistance Element Table
Limiting Element Voltage (Linear Law) 250 V
Contact Resistance Variation 2 % Rn or 2 Ω
End Resistance (Typical) 1 Ω
Dielectric Strength (RMS) 1000 V
Insulation Resistance (500 VDC) 106 MΩ
0 50 100 155
0.5
0
AMBIENT TEMPERA TURE IN °C
POWER IN W
70 125
25
PERFORMANCE
TESTS CONDITIONS
TYPICAL VALUES AND DRIFTS
ΔRT
RT (%) ΔR1-2
R1-2 (%)
Load Life 1000 hours at rated power
90’/30’ - ambient temp. 70 °C
± 1 % ± 2 %
Contact res. variation: < 1 % Rn
Climatic Sequence
Phase A dry heat 125 °C - 30 % Pr
Phase B damp heat
Phase C cold - 55 °C
Phase D damp heat 5 cycles
± 0.5 % ± 1 %
Long Term Damp Heat 56 days
40 °C, 93 % RH
± 0.5 % ± 1 %
Dielectric strength: 1000 V RMS
Insulation resistance: > 104 MΩ
Rapid Temperature Change 5 cycles
- 55 °C at + 125 °C ± 0.5 % ΔV1-2
V1-3
≤ ± 1 %
Shock
50 g at 11 m secs
3 successive shocks
in 3 directions
± 0.1 % ± 0.2 %
Vibration
10 - 55 Hz
0.75 mm or 10 g
during 6 hours
± 0.1 % ΔV1-2
V1-3
≤ ± 0.2 %
Rotational Life 200 cycles ± 4 %
Contact res. variation: < 1 % Rn
Document Number: 51026 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 26-Jun-07 75
T93
3/8" Square Multi-Turn Cermet Trimmers Vishay Sfernice
MARKING
Printed:
- VISHAY trademark
- model
- style
- ohmic value (in Ω, kΩ, MΩ)
- tolerance (in %)
- manufacturing date
- marking of terminal 3
STANDARD RESISTANCE ELEMENT DATA
STANDARD
RESISTANCE
VALUES
LINEAR LAW TYPICAL
TCR
- 55 °C
+ 125 °C
MAX.
POWER
AT 70 °C
MAX.
WORKING
VOLTAGE
MAX. CUR.
THROUGH
WIPER
ΩW V mA ppm/°C
10
22
47
100
220
470
1K
2.2K
4.7K
10K
22K
47K
100K
220K
470K
1M
2.2M
0.5
0.5
0.28
0.13
0.06
0.028
2.2
3.3
4.8
7
10.5
15.3
22.4
33.2
48.5
70.7
105
153
224
250
250
250
250
224
150
103
70
47
32
22
15
10
7
4.8
3.2
2.2
1.1
0.53
0.25
0.11
± 100
PACKAGING
- In magazine pack by 50 pieces (tube) code “TU50”.
ORDERING INFORMATION
T93
MODEL
XA
VERSION
220 kΩ
OHMIC VALUE
± 10 %
TOLERANCE
TU50
PA CK A G I N G
e3
LEAD FINISH
TU50 : Tube e3: pure Sn
SAP PA RT NUMBERING GUIDELINES
T 93XA 224 KT 20
MODE L STYLE OHMI C
V ALU E TO L PA CKAGIN G
CODE
SPECIAL
(IF APPLICABLE)
See the end of this data book for conversion tables
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
