Document Number: 51015 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 10-Nov-10 See also Application Note: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 1
7 mm Diameter Miniature Cermet Trimmer
T7
Vishay Sfernice
A dust sealed plastic case protecting a quality cermet track
guarantees high performance and proven reliability.
Adjustments are made easier by the clear scale readings.
T7 is ideally suited to all industrial applications.
FEATURES
• Industrial grade
• 0.5 W at 70 °C
• Tests according to CECC 41100 or IEC 60393-1
• Low temperature coefficient (100 ppm/K typical)
• Wide resistance range (10 Ω to 2.2 MΩ)
• Easy to read scale
• 7 mm (0.275") diameter
• Compliant to RoHS Directive 2002/95/EC
DIMENSIONS in millimeters (± 0.5 mm)
T7 YA T7 YB
2.54
0.4
0.5
2.54
2.54
a
b
c
Ø 4
6
4.5 min.
Ø 7
Ø 4
6
4.5 min.
Ø 7
0.6
2.54
2.54
0.3
0.5
a
c
b
90°
T7
Vishay Sfernice 7 mm Diameter Miniature Cermet Trimmer
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 51015
2 See also Application Note: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 Revision: 10-Nov-10
ELECTRICAL SPECIFICATIONS
Resistive element Cermet
Electrical travel 270° ± 15°
Resistance range 10 Ω to 2.2 MΩ
Standard series E3 1 - 2.2 - 4.7 and on request 1 - 2 - 5
Tolerance standard standard ± 20 %
on request ± 10 %
Power rating
linear 0.5 W at 85 °C
Circuit diagram
Temperature coefficient See Standard Resistance Element Data
Limiting element voltage (linear law) 250 V
Contact resistance variation 3 % or 3 Ω
End resistance (typical) 1 Ω
Dielectric strength (RMS) 1000 V
Insulation resistance 106 MΩ
MECHANICAL SPECIFICATIONS
Mechanical travel 300° ± 5°
Operating torque (max. Ncm) 2
End stop torque (max. Ncm) 4
Unit weight (max. g) 0.5
Terminals SnAg alloy (code e2)
ENVIRONMENTAL SPECIFICATIONS
Temperature range - 55 °C to + 125 °C
Climatic category 55/100/56
Sealing
IP64
For board cleaning, Vishay recommands testing before usage. Water immersion is
forbidden. Ultrasonic may cause component damage or failure.
020 40 100 125 140
85
70
0.25
0
0.50
AMBIENT TEMPERATURE IN DEGREES CELSIUS
POWER IN WATT
ac
bcw
(2)
(3)
(1)
T7
7 mm Diameter Miniature Cermet Trimmer Vishay Sfernice
Document Number: 51015 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 10-Nov-10 See also Application Note: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 3
PERFORMANCES
TESTS CONDITIONS TYPICAL VALUES AND DRIFTS
ΔRT/RT (%) ΔR1-2/R1-2 (%)
Load life 1000 h at rated power
90'/30' - ambient temperature 70 °C
± 3 %
Contact resistance variation:
< 3 % Rn
± 4 %
Climatic sequence
Phase A dry heat 100 °C
± 2 % ± 3 %
Phase B damp heat
Phase C cold - 55 °C
Phase D damp heat 5 cycles
Long term damp heat 56 days
± 2 %
Dielectric strength: 1000 VRMS
Insulation resistance: > 104 MΩ
± 3 %
Rapid temperature change 5 cycles - 55 °C at + 125 °C ± 1 % ΔV1-2/ΔV1-3
≤ ± 2 %
Shock
50 g - 11 ms
± 0.5 % ± 1 %3 successive shocks
in 3 directions
Vibration 10 Hz to 55 Hz
0.75 mm or 10 g during 6 h ± 0.5 % ΔV1-2/ΔV1-3
≤ ± 1 %
Rotational life 200 cycles
± 3 %
Contact resistance variation:
< 3 % Rn
STANDARD RESISTANCE ELEMENT DATA
STANDARD
RESISTANCE VALUES
LINEAR LAW TYPICAL TCR
- 55 °C to + 125 °C
MAX. POWER AT 85 °C MAX. WORKING VOLTAGE MAX. WIPER CURRENT
ΩWVmAppm/°C
10 0.5 2.2 224
± 100
22 0.5 3.3 150
47 0.5 4.8 103
100 0.5 7.0 70
220 0.5 10.5 47
470 0.5 15.3 32
1K 0.5 22.4 22
2.2K 0.5 33.2 15
4.7K 0.5 48.5 10
10K 0.5 70.7 7.0
22K 0.5 105 4.8
47K 0.5 153 3.2
100K 0.5 224 2.2
220K 0.28 250 1.1
470K 0.13 250 1.53
1M 0.06 250 0.25
2.2M 0.028 250 0.11
T7
Vishay Sfernice 7 mm Diameter Miniature Cermet Trimmer
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 51015
4 See also Application Note: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 Revision: 10-Nov-10
MARKING
• Vishay trademark
•Model
• YA or YB style
• Ohmic value (in Ω, kΩ, MΩ)
• Manufacturing date
• Marking of terminal: 3
PACKAGING
• In box of 200 pieces, code B40
• On request: In tube of 50 pieces, code T20 (TU50)
ORDERING INFORMATION (part number)
MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING CODE SPECIAL NUMBER
T7 YA
YB
X
From 10 Ω
to 2.2 MΩ
103 = 10K
M = 20 %
On request:
K = 10 %
B40 = Box 200 pieces
On request:
T20 = Tube 50 pieces
(If applicable)
Given by Vishay for custom
design
DESCRIPTION (for information only)
T7 YA 470K 20 % BO e2
MODEL STYLE VALUE TOLERANCE SPECIAL PACKAGING LEAD FINISH
A474 B40M7YT
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
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or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
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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. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
