RCEC 750
www.vishay.com Vishay MCB
Revision: 24-Apr-2020 1Document Number: 32509
For technical questions, contact: mcbfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Power Resistors Cooled by Auxiliary Heatsink (Not Supplied)
Thick Film Technology
LINKS TO ADDITIONAL RESOURCES
FEATURES
• System without external radiation
• High power / volume ratio
•Non-inductive
• M4 screw-on outputs (M5 on option)
• Easy assembly, self-calibrated pressure (400 N)
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Notes
(1) ± 2 % or ± 1 % on special request for limited resistance value and with reduction of maximum power and pulse rating (contact us for details)
(2) Current limitation for 0.15 Ω: 30 ARMS max.
(3) Other on request
3
3
3
D
D
D
3
D
3D Models
STANDARD ELECTRICAL SPECIFICATIONS
MODEL RESISTANCE RANGE
Ω
MAX. RATED POWER BC85 °C
W
TOLERANCE
± %
TEMPERATURE COEFFICIENT
± ppm/°C
E-SERIES
OHMIC
VALUES (3)
RCEC 750
0.15 (2) to 0.49 800 10, 5 700 (typical) E24
0.5 to 3 800 10, 5 (1) 300 (typical) E24
3.3 to 1M 800 10, 5 (1) 100 (typical) E24
MECHANICAL SPECIFICATIONS
UL 94 flame classifications Material complies with the standard UL 94 V-0
Resistive element Cermet
Substrate Alumina
Encapsulation Resin filled in case
TECHNICAL SPECIFICATIONS
PARAMETER 750 750HV
Operating temperature range -55 °C to +155 °C
Maximum operating voltage between terminals 5000 VDC
Dielectric strength VRMS (50 Hz / 1 min) 7000 V (other case contact us) 12 000 V (other case contact us)
Creeping distance > 42 mm > 75 mm
Clearance distance > 12 mm > 30 mm
CTI index > 600
Partial discharge < 10 pC at 5000 Veff (≤ 10 pC at 7000 Veff on request)
Other cases: contact us
Capacitance / ground (frequency 10 kHz) 120 pF (typical)
Self-inductance (frequency 10 kHz) < 40 nH (typical)
Insulation resistance > 100 GΩ at 1000 VDC
Weight 120 g (maximum)
RCEC 750
www.vishay.com Vishay MCB
Revision: 24-Apr-2020 2Document Number: 32509
For technical questions, contact: mcbfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DIMENSIONS in millimeters
STANDARD HV
PERFORMANCES
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES
Damp heat 56 days, 40 °C, 93 % RH
(IEC 60068-2-78)
± (1 % + 0.05 Ω)
Insul. > 103 MΩ< 0.2 %
Climatic sequence
Low temperature: -55 °C
High temperature 150 °C
Number of cycles: 21
Exposure time:
3 hours for high temperature and 2 hours for low
temperature (IEC 60068-2-14 Nb)
± (1 % + 0.05 Ω) < 0.2 %
Rapid change of temperature
Low temperature: -55 °C
High temperature: 125 °C
Number of cycles: 5
Exposure time: 30 min
Manual transition time: 2 min.
(IEC 60068-2-14 Na)
± (0.25 % + 0.05 Ω) < 0.1 %
Shock
Shock type: half-sine
Amplitude: 100 m/s2
Duration: 6 ms
Frequency: 1 bump per second
Number of bumps: 3000
Directions tested: 6
(500 bumps in each direction)
(IEC 600068-2-29 test Eb)
± (0.25 % + 0.05 Ω) < 0.2 %
57 ± 0.2
67
36
60
34
(2 x) M4 useful depth 7
Ø 8
14.3
24.8 ± 0.5
60 ± 0.3
24
24
39.8 ± 0.5
RCEC 750
www.vishay.com Vishay MCB
Revision: 24-Apr-2020 3Document Number: 32509
For technical questions, contact: mcbfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Note
(1) All tests were done in Vishay MCB laboratory conditions
DISSIPATION
Permanent Applicable Power (W) as a Function
of Bottom Case Temperature (°C)
OVERLOAD
Intermittent Overload (Exceptional Operation)
Bottom Case Temperature +85 °C
Vibrations
Random frequency range:
from 10 Hz to 200 Hz / ASD: 0.0104 g2/Hz
from 200 Hz to 500 Hz / ASD: 0.00312 g2/Hz
Overall acceleration level: 1.87 GRMS
Axis tested: 3 (X, Y, and Z) / 150 min per axis
(IEC 60068-2-64)
± (0.25% + 0.05 Ω) < 0.2 %
Terminal strength 2 Nm / 200 N ± (1 % + 0.05 Ω) < 0.1 %
Endurance
1000 h
Pn 90 min on / 30 min off
with θbottom case = 85 °C
(IEC 60115-1)
± (1 % + 0.05 Ω) < 0.5 %
ENERGY
R ≤ 390 ΩR > 390 Ω
Repetitive operation = 8 J
Pulse τ = 50 μs
Repetitive operation = 4 J
Pulse τ = 50 μs
Accidental operation = 20 J
Pulse τ = 50 μs
120 pulses
Other τ values: consult us
PERFORMANCES
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES
10
100
1000
10000
0
100
200
300
400
500
600
700
800
900
0 25 50 75 100 125 150 175
Axis Title
1st line
2nd line
2nd line
Power (W)
Temperature (°C)
P = f (T°)
10
100
1000
10000
0
500
1000
1500
2000
2500
1101001000
Axis Title
1st line
2nd line
2nd line
Power (W)
Time (s)
P = f (t)
RCEC 750
www.vishay.com Vishay MCB
Revision: 24-Apr-2020 4Document Number: 32509
For technical questions, contact: mcbfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
COOLING
The temperature of the heatsink may be maintained at the specified values with:
• Forced air ventilation or internal circulation of a liquid cooling
• Heatsink contact surface: < Ra 6.3 μ
• Evenness defect: 0.05 mm max.
• Surface temperature gradient (isotherm): 20 °C max.
• Thermal compound not supplied (resistance < 0.025 °C/W / 0.05 mm preconized)
• Mounting recommendation: www.vishay.com/doc?32558
The user must select the thermal resistance of the heatsink according to the power applied.
TERMINAL OPTIONS
• Electrical terminals M5
• Other terminal size
•Output cable
ASSEMBLY
Tightening torque for mechanical fixation 1.8 Nm to 2 Nm
Tightening torque for electrical connections 1.8 Nm to 2 Nm
ORDERING INFORMATION
RCEC 750 HV 100K 5 % XXX BO15
MODEL STYLE TERMINALS RESISTANCE VALUE TOLERANCE CUSTOM DESIGN PACKAGING
± 5 %
± 10 %
Other on request
Optional
On request:
special value,
tolerance shape,
M5 terminals, etc.
57 ± 0.2
M4 min. depth 10
Thermal compound
see note below
RCEC 750
www.vishay.com Vishay MCB
Revision: 24-Apr-2020 5Document Number: 32509
For technical questions, contact: mcbfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
GLOBAL PART NUMBER INFORMATION
RCEC7 5 0HV 5R6 0KB
123456
123456
GLOBAL
MODEL
TERMINAL OHMIC VALUE TOLERANCE PACKAGING INDUSTRIALIZATION
NUMBER
RCEC 750 (if applicable)
Standard (no digit) =
dielectric strength
7 kV + partial
discharge
HV = dielectric
strength 12 kV +
partial discharge
The first three digits
are significant
figures and the last
specifies the
number of zeros to
follow, R designates
decimal point.
4702 = 47 kΩ
1000 = 100 Ω
47R0 = 47 Ω
4R70 = 4.7 Ω
J = 5 %
K = 10 %
B = box
(24 pcs for standard,
15 pcs for HV)
3 specific digits
(if applicable)
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 01-Jan-2021 1Document Number: 91000
Disclaimer
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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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
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including but not limited to the warranty expressed therein.
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