RCEC 750
www.vishay.com
Vishay MCB
Power Resistors Cooled by Auxiliary Heatsink (Not Supplied)
Thick Film Technology
FEATURES
• Technology: thick film deposited on ceramic
• Cold system without external radiation
• High power / volume ratio
• Non-inductive
• Easy assembly, self calibrated pressure (400 N)
DESIGN SUPPORT TOOLS
Models
Available
click logo to get started
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
RCEC 750
RESISTANCE RANGE MAX. RATED POWER
P
75 °C
W
1 to 1M
750
TOLERANCE
±%
10, 5
TEMPERATURE COEFFICIENT
± ppm/°C
150 (typical)
E-SERIES
OHMIC
VALUES
E 24
MECHANICAL SPECIFICATIONS
UL 94 flame classifications
Resistive element
Substrate
Encapsulation
Material complies with the standard UL 94 V-0
Cermet
Alumina
Resin filled case
TECHNICAL SPECIFICATIONS
PARAMETER
Operating temperature range
Maximum operating voltage
Dielectric strength V
RMS
(50 Hz / 1 min)
Creepage distance
Clearance distance
Capacitance: ground
Capacitance: parallel
Partial discharge
Inductance
Insulation resistance
Weight (max.)
10
5
7000 V
42 mm
12 mm
120 pF
40 pF
500 pC at 7000 V
eff
10 pC at 5000 V
eff
Other cases: consult us
40 nH
M at 500 V
CC
120 g
750
-55 °C to +150 °C
5000 V
12 000 V
75 mm
30 mm
750HV
Revision: 16-Nov-17
Document Number: 32509
1
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
RCEC 750
www.vishay.com
Vishay MCB
DIMENSIONS
in millimeters
Standard
2 x screw M4*
6
40 ± 0.5
24
24
REQUIREMENTS
2%
2 % or 0.05
insul. > 10
3
M
(1)
HV
Ø8
25 ± 0.5
60 ± 0.3
34 ± 0.2
57 ± 0.2
67
CONDITIONS
1200 W / 10 s
= 70 °C
56 days, 40 °C, 95 % HR
-55 °C to +125 °C 5 cycles
CEI 61373 cat 1 class B Half sinus
50 m/s
2
/ 30 ms
6 per axis (3 negative and 3 positive)
CEI 61373Cat 1 class B random
5 Hz to 150 Hz 7.9 m/s
2
5 h per axis
200 Ncm / 200 N
2000 cycles P
n
30 min / 30 min
PERFORMANCES
TESTS
Momentary overload
Humidity (steady state)
VRT
Mechanical shock
TYPICAL VALUES
0.2 %
0.2 %
0.2 %
0.25 %
60
36 ± 0.2
14.5
14
2 % or 0.05
(1)
0.5 % or 0.05
(1)
Vibration
Terminals strength
Endurance
Note
(1)
The higher of either value
0.5 % or 0.05
(1)
1 % or 0.05
(1)
5%
0.25 %
0.1 %
0.2 %
ENERGY ABSORPTION
R < 390
Repetitive operation: 8 J/t = 50 μs
Accidental operation: 20 J/t = 50 μs / 120 impulsions max.
R > 390
Repetitive operation: 4 J/t = 50 μs
Other t values: consult us
Revision: 16-Nov-17
Document Number: 32509
2
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
RCEC 750
www.vishay.com
DISSIPATION
Axis Title
80
70
60
1st line
2nd line
50
1st line
Δθ
(°C)
40
30
20
10
0
0
100
200
300
400
P (W)
500
600
700
Δθ
= f (P)
10
100
1000
1st line
P (W)
10000
800
700
600
1st line
2nd line
100
P = f (θ)
0
0
25
50
75
θ
(°C)
100
125
150
10
500
400
300
200
100
1000
Axis Title
10000
Vishay MCB
Temperature Rise as a Function of the Power Applied
Overall Thermal Resistance 0.10 °C/W (See Assembly)
Permanent Applicable Power as a Function
of Heatsink Temperature
OVERLOAD
Axis Title
2500
10000
2000
1000
Axis Title
P (W)
1st line
2nd line
100
500
1
10
t (s)
100
10
1000
1500
1000
0
Intermittent Overload (Exceptional Operation)
Heatsink Temperature 70 °C
ASSEMBLY
57
±
0.
2
M4 min. depth 5
Thermal compound
resistance < 0.05 °C/W / 0.025 mm
Screws and bolts supplied.
Maximum tightening torque:
200 Ncm, mechanical mounting
200 Ncm, electrical connections
Revision: 16-Nov-17
Document Number: 32509
3
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
RCEC 750
www.vishay.com
COOLING
The temperature of the heatsink may be maintained at the specified values with:
• Forced air ventilation
• Internal circulation of a liquid cooling
• Heatsink contact surface: Ra 6.3 μm
• Evenness defect: 0.05 mm max.
• Surface temperature gradient (isotherm): 20 °C max.
• Thermal compound not supplied (resistance < 0.05 °C/W / 0.025 mm)
The user must select the thermal resistance of the heatsink according to the power applied.
Vishay MCB
TERMINAL OPTIONS
• Electrical terminals M5
• Other terminal size
• Output cable
ORDERING INFORMATION
RCEC
MODEL
750
STYLE
HV
TERMINALS
100K
RESISTANCE VALUE
5%
TOLERANCE
±5%
± 10 %
Other on request
XXX
CUSTOM DESIGN
Optional
On request:
special value,
tolerance shape,
M5 terminals, etc.
BO15
PACKAGING
GLOBAL PART NUMBER INFORMATION
R
C
E
C
1
1
GLOBAL
MODEL
RCEC 750
2
TERMINAL
(if applicable)
Standard (no digit)
=
dielectric strength
7 kV + partial
discharge
HV
= dielectric
strength 12 kV +
partial discharge
3
OHMIC VALUE
The first three digits
are significant
figures and the last
specifies the
number of zeros to
follow, R designates
decimal point.
4702 = 47 k
1000 = 100
47R0 = 47
4R70 = 4.7
7
5
0
H
2
4
TOLERANCE
J=5%
K = 10 %
V
5
R
3
6
0
K
4
5
PACKAGING
B = box
(24 pcs for standard,
15 pcs for HV)
B
5
6
6
INDUSTRIALIZATION
NUMBER
3 specific digits
(if applicable)
EXAMPLES
MODEL
RCEC 750
RCEC 750 HV
DESCRIPTION
RCEC 750 220K 10 % BO24
RCEC 750 HV 100U 5 % 310 BO15
PART NUMBER
RCEC7502203KB
RCEC750HV1000JB310
Revision: 16-Nov-17
Document Number: 32509
4
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
Legal Disclaimer Notice
www.vishay.com
Vishay
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
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
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.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
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.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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