70
Vishay Spectrol
Document Number: 57076 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 06-Mar-08 See also: Application notes 85
1 1/4" Rectangular Multi-Turn Cermet
FEATURES
•0.5 W at 70 °C
•Unique “T” slider block design
•CRV of 3 % or 3 Ω
•RT tolerance ± 10 % STD (± 5 % available)
•Tests according to CECC 41 000
DIMENSIONS in inches (millimeters)
RoHS
COMPLIANT
0.050
(1.27)
± 0.010
MTG. HOLES
0.093 Ø (2.36) 1.250
(31.75)
1.000
(25.40) 0.125
(3.18)
± 0.010
Ø 0.11
(2.79)
0.070
(1.78) ± 0.010
± 0.010
± 0.010
0.025
(0.63)
± 0.010
0.196
(4.98)
± 0.010
0.325
(8.25)
± 0.015
0.500
(12.70)
± 0.030
0.028 Ø TYP.
(0.71)
± 0.003
0.63 (1.60)
MAXIMUM MENISCUS
#30 AWG LEADS INSULATED 6"
(152.40 MIN. LENGTH)
0.050
(1.27)
± 0.010
0.700
(17.28)
± 0.010
0.300
(7.62)
± 0.010
0.100
(2.54)
± 0.010 0.030
(0.76) 0.260
(6.60)
ADJUSTMENT SCREW
HEAD SLOT
± 0.015 0.025 (0.64) WIDE X
0.030 (0.76) DEEP
Tolerances unless otherwise specified ± 0.5 mm
ac
bcw
(2)
(3)
(1)
CIRCUIT DIAGRAM
0.098
(2.49)
0.245
(6.22)
70 Y 70 L
70 L
T 601
43.2
(1.702)
7.6
(0.300)
6.5
(0.255) Ø 10.2
(0.401)
12-28 HEX NUT
SHAKEPROOF WASHER
10
(0.39)
7
(0.26)
Ø 5.49
(12-28 NF)
SPECTROL 6-2
ELECTRICAL SPECIFICATIONS
Resistance Range 10 Ω thru 2 MΩ
Standard Resistance Tolerance 10 %
End Resistance 2 % maximum
Actual Effective Electrical Travel 20 turns nominal
Contact Resistance Variation 3 % or 3 Ω, whichever is greater
Dielectric Withstanding Voltage 1000 VAC at sea level, 350 VAC at 80 000 feet (24.400 meters)
Insulation Resistance 1000 MΩ
Power Rating
0.5 W at 70 °C derated linearly to zero watts at 125 °C
(100 °C for leadwire style)
maximum voltage not to exceed 350 V
Temperature Coefficient of Resistance (Typical) ± 100 ppm/°C
70
Vishay Spectrol 1 1/4" Rectangular Multi-Turn Cermet
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 57076
86 See also: Application notes Revision: 06-Mar-08
MARKING
Unit Identification: Manufacturer’s name and part number including EIA resistance code, date code, circuit diagram and military
style designation as appicable.
MECHANICAL SPECIFICATIONS
Operating Torque 5 oz. in (3.60 Ncm) maximum
Rotational Life 200 cycles with loaded circuit, maximum change in resistance 2 % or
500 cycles without discontinuity unloaded
Weight 0.116 oz. (3.3 g) maximum
ENVIRONMENTAL SPECIFICATIONS
TESTS CONDITIONS TYPICAL VALUES AND DRIFTS
ΔRT/RT (%) ΔR1-2/R1-2 (%)
Operating Temperature Range - 55 °C to + 125 °C (100 °C for leadwire style) - -
Terminal Strength 2 lbs (9 N) minimum push/pull - -
Sealed All units sealed to permit cleaning in common
solvents immersion --
Thermal Shock - 55 °C to + 125 °C, 5 cycles (100 °C for leadwire style) 1 % 1 %
Shock 50 g at 11 ms, 3 successive shocks in 3 directions 1 % 1 %
Vibration 10 - 55 Hz 0.75 mm or 10 g for 6 h 1 % 1 %
Load Life 1000 h at rater power 90’/30’ 1 % 5 %
High Temperature Exposure + 125 °C (100 °C for leadwire style) 1 % 5 %
Resistance to Solder Heat 350 °C for 3 s 1 % -
ORDERING INFORMATION (Part Number 15 digits)
MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING CODE SPECIAL NUMBER
L = Leadwire
Y = Printed circuit
pins
From 10 Ω
to 2 MΩ
103 = 10K
K = 10 %
On request:
J = 5 %
B25 = Box 50 pieces (If applicable)
Given by VISHAY for custom
designer
PART NUMBER DESCRIPTION (for information only)
70 L 10K 10 % BO50 e3
MODEL STYLE VALUE TOLERANCE SPECIAL PACKAGING LEAD (Pb)-FREE
L103 B25K70M
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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therein, which apply to these products.
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