Capacitor Leakage Test System

Electronic parts that support compact, high-performance electronic devices. As the structure of electronic parts continues to become more dense and complicated, it is also decreasing in size, and there is active development of parts that are compact, high capacity, environmentally friendly and with lower ESR. Among these, condensers are essential key devices for the innovation of laptops, cell phones, mobile devices, and Bluetooth and other multimedia devices. Reliability testing to ensure the performance and safety of these will be even more important in the future. ESPEC has developed the Capacitor Leakage Test System that enables automatic evaluation of insulation degradation characteristics of condensers in high temperature and high temperature/humidity test environments. This system applies voltage to the condenser in the desired high temperature (humidity) test environment and obtains the leak current caused by insulation breakdown.
This automatic measurement system comes with various data processing and analysis functions, including display of leak current caused by insulation breakdown, failure detection and calculation, and failure analysis using cumulative hazards.

Overview of Equipment

Features

Automatic evaluation of insulation degradation characteristics of condensers in high temperature and high temperature/humidity environments.
Can be expanded to a maximum of 300 channels.
Measurement can be performed with an insulation resistance range of 2.0×10E+05 to 1.0×10E+13. (when applying 100 V)
Set test conditions in units of 25 channels.
Display and check the temperature and humidity of the temperature chamber, number of failure occurrences, and section failure rate in real-time.
Evaluate the insulation degradation characteristics from the histogram of the number of failure occurrences, the failure rate curve, and data analysis using the cumulative hazards.
Supports various condenser mounting jigs, including board mounting and contact probe types.

Construction

Insulation degradation testing of ceramic chip condensers and other condensers

システムブロック図

Detailed Specifications

Please scroll horizontally to look at table below.

Type			Stress constant voltage 100 V specification	Stress constant voltage 300 V specification (OPTION)	Stress constant voltage 500 V specification (OPTION)
Channel configuration			25 to 300 ch/rack
Channel control			5 ch/25 ch
Software^*1			Windows OS
Stress power supply	Stress voltage		0 V DC, 1.0 to 100 V DC	0 V DC, 1.0 to 300 V DC	0 V DC, 1.0 to 500 V DC
	Min. set voltage resolution		0.1 V (1.0 to 100 V. Can be set independently of the measurement voltage.)	0.1 V (when set at 1 to 200 V) 1.0 V (when set at 200 to 300 V)	0.1 V (when set at 1 to 200 V) 1.0 V (when set at 200 to 500 V)
	Applied voltage accuracy		±(0.7% of set voltage + 300 mV)
Measurement functions	Resistance measurement range (Ω)		2.0×10⁵ to 1.0×10¹³ (when applying 100 V) 2.0×10³ to 1.0×10¹¹ (when applying 1 V)	6.0×10⁵ to 3.0×10¹³ (when applying 300 V) 2.0×10³ to 1.0×10¹¹ (when applying 1 V)	1.0×10⁶ to 5.0×10¹³ (when applying 500 V) 2.0×10³ to 1.0×10¹¹ (when applying 1 V)
	Measurement accuracy		10 TΩ±30% (when applying 100 V)
	Measurement voltage		1.0 to 100 V DC (0.1 increments)	1.0 to 300 V DC (1.0 to 200 V: 0.1 increments) (200 to 300 V: 1.0 increments)	1.0 to 500 V DC (1.0 to 200 V: 0.1 increments) (200 to 500 V: 1.0 increments)
Leakage current detection speed			Constantly detects with speed of less than 100 μs.
Measurement cable	Type	+ side	Heat-resistant single cable
	Type	- side	Coaxial cable (one-layer shield)
	Coating material		Teflon (heat resistance +150°C)
	Length		Between scanner unit and connection unit: 2.5 m Between connection unit and end: 1.5 m
Connection unit			25 ch/unit + side: Metal connectors, - side: Square coaxial connectors
No. of measurement instruments			25 ch to 150 ch: 1 175 ch to 300 ch: 2
Accessories			Communication cable (Ethernet), setup CD, operation manual (1 set), maintenance (10 MΩ) resistor box, warranty certificate
Outside dimensions^*2			W530 x H1750 x D1040 mm
Power supply			100 V AC, 1 φ, 15 A

*1 The (software) operating environment may change as a result of version changes in the Windows OS. Please check the current OS version.
*2 Excludes protrusions.