Vishay 561R Series Low-Voltage Ceramic Disc Capacitors Data Sheet - Specifications and Technical Information.
Summary
Discover the Vishay Cera-Mite 561R Series Precision Ceramic Disc Capacitors, built for applications requiring ultra-stable performance at 1000 VDC. This manual provides comprehensive technical details on capacitors ranging from 1.0 pF to 680 pF, including various dielectric types and custom lead options. Ideal for electrical engineers and designers working with critical resonant circuits or temperature compensating systems who demand the ultimate in stability and high reliability.
Page 1 Text Content
561R Series Vishay Cera-Mite
Lower Voltage Ceramic Disc Capacitors 1000 VDC Precision Capacitors
FEATURES
Fig. 1
Ultra stable over temperature and voltage LO Used when the ultimate in stability is required
0.125" max. (3)
Radial leads
APPLICATIONS Temperature compensating
1.250" min. (32)
Resonant circuit
DESIGN
Fig. 2
The capacitors consist of a ceramic disc of which both sides are silver-plated. Connection leads are made of tinned
0.125" max. (3) LO
copper or tinned copper clad steel having diameters of 0.020" (0.51 mm) or 0.025" (0.64 mm). The capacitors may be supplied with radial kinked or straight
max. leads having lead spacing of 0.250" (6.35 mm) or 0.375"
(9.5 mm).
1.250" min. (32) Coating is made of flame retardant epoxy resin in
accordance with “UL 94 V-0”.
CAPACITANCE RANGE 1.0 p F to 680 p F
RATED VOLTAGE
LEAD OFFSET ‘LO” (NOMINAL)
1000 VDC 0.050" (1.3 mm) 1000 VDC
DIELECTRIC STRENGTH BETWEEN LEADS
INSULATION RESISTANCE
Component test:
Min. 1000 ΩF or 50 000 MΩ
2500 VDC, 2 s
TOLERANCE ON CAPACITANCE
CERAMIC DIELECTRIC
C0K, C0G, U2J, M3K, S3N (Class 1)
DISSIPATION FACTOR 0.1 % max. at 1 MHz; 1 V
CATEGORY TEMPERATURE RANGE (- 55 to + 125) °C
CLIMATIC CATEGORY ACC. TO EN60068-1 55/125/21
OPERATING TEMPERATURE RANGE (- 55 to + 105) °C
Document Number: 23108 for technical questions, contact: [email protected] www.vishay.com
Revision: 04-Jun-09
Page Summary Contents For Vishay 561R Series Low-Voltage Ceramic Disc Capacitors Data Sheet - Specifications and Technical Information.
Manual Details
| Brand | Vishay |
|---|---|
| Pages | 3 |
| File Size | 50.51 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the operational temperature range for these capacitors?
The operating temperature range is specified as -55 °C to +105 °C
What types of circuits are these capacitors designed for?
They are suitable when ultimate stability, especially in resonant circuits, is required over temperature and voltage
What dielectric strength do the capacities pass during testing?
The component test requires a minimum value of 1000 ΩF or 50 000 MΩ at 2500 VDC for 2 seconds
How are the leads supplied for installation?
They may be supplied with radial kinked or straight leads, utilizing tinned copper or tinned copper clad steel.