HIOKI IM7581 - Impedance Analyzer for HF Components, 100 kHz to 300 MHz

The IM9202 test fixture is designed for two-terminal impedance measurements of axial and radial leaded components as well as surface-mount components (SMD). It supports measurements up to 600 MHz and is used in combination with HIOKI impedance analyzers, including IM7587, IM7585, IM7583 and IM7581. Axial leaded components with lead spacing from 1 mm to 25 mm and radial leaded components with lead spacing from 2 mm to 26 mm can be measured, as defined by the fixture geometry. Supported SMD component sizes are EIA0603 (Electronic Industries Alliance) and larger. For stable operation, the IM9202 is mounted on the IM9200 stand, which provides a secure base and defined mechanical alignment between the test head and the fixture and supports handling of small components. Electrical connection to the analyzer test head is performed via the 7 mm interface of the test fixture. The IM9906 adapter is required to connect the 7 mm interface of the test fixture to the analyzer test head’s 3.5 mm connector. The IM9202 is supplied with a carrying case designed for storage and transport of the test fixture and its included accessories. The carrying case also provides dedicated space for optional accessories such as the IM9906 adapter and IM9905 calibration standards, allowing related components to be stored together when required.

The IM9201 SMD test fixture is designed for impedance measurements of surface-mount components (SMD) in combination with HIOKI impedance analyzers that support twoterminal measurement configurations. It supports measurements up to 3 GHz and accommodates SMD component sizes from EIA0201 to EIA1210.The IM9201 supports measurements up to 3 GHz, which aligns with the frequency range of high-frequency impedance analyzers such as the IM7587 and IM7585. The test fixture can also be used with impedance analyzers featuring lower maximum measurement frequencies, such as the IM7583 or IM7581, when measurements of small SMD component sizes below EIA0603 are required.For stable operation, the IM9201 is mounted on the IM9200 stand, which provides a secure base and defined mechanical alignment between the analyzer test head and the test fixture. Handling of small SMD components is further facilitated by the magnifier supplied with the IM9200 stand. Electrical connection to the analyzer test head is performed via the 7 mm interface of the test fixture. The IM9906 adapter is required to connect the 7 mm interface of the test fixture to the analyzer test head’s 3.5 mm connector. The IM9201 is supplied with a carrying case designed for storage and transport of the test fixture and its included accessories. The carrying case also provides dedicated space for optional accessories such as the IM9906 adapter and IM9905 calibration standards, allowing related components to be stored together when required.

The IM9200 is a stand for the impedance test fixtures IM9201 and IM9202. It provides a stable mechanical base and a defined alignment between the analyzer test head and the mounted test fixture. Handling of small components during setup and measurement is supported by the removable magnifier supplied with the IM9200. When not in use, the magnifier can be stored in the carrying case of the test fixture.

The IM9905 calibration kit provides OPEN, SHORT and LOAD standards for calibration of HIOKI impedance analyzers with two-terminal measurement capability at the 7 mm (APC-7) reference plane. These standards are used to correct systematic measurement errors in the measurement path up to this reference plane. For calibration of impedance measurement systems, the 7 mm (APC-7) reference plane is commonly applied in high-frequency metrology. When calibration is performed on systems with a 3.5 mm test head, such as those of the HIOKI IM7587, IM7585, IM7583 or IM7581, a suitable adapter is required to establish the 7 mm reference plane. The adapter provided by HIOKI for this purpose is the IM9906.

The IM9906 adapter features a 7 mm (APC-7) connection on one side and a 3.5 mm male connector on the other side. It is used to connect 7 mm calibration standards or test fixtures to measurement systems with a 3.5 mm test head, including HIOKI impedance analyzers such as the IM7587, IM7585, IM7583 and IM7581. The 7 mm (APC-7) interface is commonly used in high-frequency metrology for calibration standards and impedance test fixtures. The 3.5 mm interface is a precision coaxial connector used for RF and impedance measurements and is mechanically compatible with SMA connectors, but differs in construction by using an air dielectric instead of a solid dielectric.

Key SpecificationsMeasurement frequency: 1 MHz to 3 GHz Typical analog measurement time: 0.5 msBasic accuracy: ±0.65% (Z, reading), ±0.38°(Phase) Typical repeatability: ±0.07% (e.g., 1 nH at 3 GHz) Test signal levels: −40.0 dBm to +1.0 dBm Typical ApplicationsR&D characterization of RF components such as chip inductors, ferrite beads, filters, resonators and piezoelectric devices Frequency-dependent impedance analysis for component and circuit design Resonance and peak evaluation of piezoelectric and RF components Automated pass/fail testing of high-frequency components in R&D and production environments  Models in comparison Model Measurement frequency Test signal levels IM7587 1 MHz bis 3 GHz −40,0 dBm bis +1,0 dBm IM7585 1 MHz bis 1,3 GHz −40,0 dBm bis +1,0 dBm IM7583 1 MHz bis 600 MHz −40,0 dBm bis +1,0 dBm IM7581 100 kHz bis 300 MHz −40,0 dBm bis +7,0 dBm Detailed Product OverviewImpedance measurements up to 3 GHz enable analysis of RF components, for example in wireless communication applications. With a frequency range from 1 MHz to 3 GHz, the IM7587 supports characterization of components such as chip inductors, ferrite beads, filters, resonators and matching networks in RF circuit design. Measurement Performance and Analysis Functions With a basic accuracy of ±0.65% of impedance and ±0.38° of phase, the IM7587 is designed for precise impedance measurements up to 3 GHz. Typical repeatability of approximately ±0.07% supports reproducible measurement results under defined conditions across its entire frequency range. A typical measurement time of 0.5 ms enables fast frequency sweeps without compromising measurement stability. Test signal levels from −40.0 dBm to +1.0 dBm enable controlled excitation of devices under test. The analyzer supports LCR, sweep and continuous measurement modes and provides evaluation functions such as comparator and BIN judgment, as well as area, peak and spot analysis. All measurement settings and analysis functions are accessed directly via the integrated 8.4 inch color touchscreen. Standard interfaces include USB, LAN and EXT I/O, with optional RS-232C and GP-IB. For more advanced analysis, the IM7587 features an Equivalent Circuit Analysis function with five representative circuit models and automatic model selection based on measurement data. In addition to three-element R-L-C models, it also supports a four-element model designed for piezoelectric device analysis, enabling applications ranging from general component characterization to resonator evaluation. Test Head and Fixtures The IM7587 employs a compact, palm-sized test head connected to the main unit by a specified connection cable. It is available with 1 m or 2 m cable lengths, allowing users to balance measurement accuracy and installation flexibility. Placing the test head close to the device under test minimizes signal path length and reduces parasitic inductance and capacitance that would otherwise affect high-frequency measurements. This design supports stable and reproducible results up to 3 GHz while reducing bench space requirements in RF laboratories. For measurements of SMD components, the IM7587 is typically used in combination with the IM9201 SMD test fixture. The IM9201 is designed for six standard SMD package sizes from 0201 to 1210 and provides stable two-terminal bottom contacts at the component interface. The contact geometry is designed for measurements across the entire specified measurement frequency range. Components are positioned on defined contact pads using a stopper and pusher mechanism, ensuring correct alignment and repeatable placement. This reduces measurement variation and enables precise characterization of SMD RF components such as chip inductors, ferrite beads and filters. For stable mounting, the IM9201 test fixture is installed on the IM9200 test fixture stand. The stand provides a secure base and a defined mechanical alignment between the test head and the fixture and includes a magnifier to facilitate handling of small components. The IM9906 adapter is required to connect the 7 mm interface of the test fixture to the analyzer test head’s 3.5 mm connector. Calibration and Measurement Integrity The optional IM9905 calibration kit provides OPEN, SHORT and LOAD reference standards for correction of system-related measurement errors in high-frequency impedance measurements up to 3 GHz. The calibration compensates parasitic effects in the measurement path up to the defined reference plane, including the analyzer test head and connecting interfaces. The calibration standards are connected via the same IM9906 adapter used for test fixtures. Comprehensive contact check functions, including DCR testing, Hi-Z reject and waveform verification, are used to verify contact quality before and, if required, after measurement. This helps prevent invalid results caused by insufficient probe contact or unstable component placement. Developed and manufactured in Japan, the IM7587 is designed for stable measurement performance over time in measurement and test environments with high demands on long-term stability.

Key Specifications  Measurement frequency: 1 MHz to 600 MHz Typical analog measurement time: 0.5 msBasic accuracy: ±0.65% (Z, reading), ±0.38°(Phase) Typical repeatability: ±0.07% (e.g., 1 nH at 3 GHz) Test signal levels: −40.0 dBm to +1.0 dBm Typical Applications  Characterization of HF components such as chip inductors, ferrite beads, filters and resonators Frequency-dependent impedance analysis for component evaluation and circuit design Resonance and peak evaluation of HF components across frequency sweepsComparator- and BIN-based pass/fail testing of high-frequency components in R&D and production-related environments Models in comparison Model Measurement frequency Test signal levels IM7587 1 MHz bis 3 GHz −40,0 dBm bis +1,0 dBm IM7585 1 MHz bis 1,3 GHz −40,0 dBm bis +1,0 dBm IM7583 1 MHz bis 600 MHz −40,0 dBm bis +1,0 dBm IM7581 100 kHz bis 300 MHz −40,0 dBm bis +7,0 dBm   Detailed Product OverviewAnalysis of HF components in a wide range of electronic applications regularly requires impedance measurements up to several hundreds of megahertz. With a frequency range from 1 MHz to 600 MHz, the IM7583 supports characterization of components such as chip inductors, ferrite beads, filters and resonators in HF circuit design. Measurement Performance and Analysis Functions High measurement accuracy of ±0.65% for impedance and ±0.38° for phase ensures reliable impedance evaluation across the specified frequency range. A typical repeatability of approximately ±0.07% provides reproducible results under defined measurement conditions. Fast frequency sweeps are supported by a typical measurement time of 0.5 ms, while test signal levels from −40.0 dBm to +1.0 dBm allow controlled excitation of the device under test. The analyzer supports LCR, sweep and continuous measurement modes and provides evaluation functions such as comparator and BIN judgment, as well as area, peak and spot analysis. All measurement settings and analysis functions are accessed directly via the integrated 8.4 inch color touchscreen. Standard interfaces include USB, LAN and EXT I/O, with optional RS-232C and GP-IB. For extended analysis, the IM7583 provides an equivalent circuit analysis function with multiple representative circuit models and automatic model selection based on measured data. The available models support impedance-based evaluation of HF components and enable systematic characterization across frequency sweeps. Test Head and Fixtures The IM7583 employs a compact, palm-sized test head connected to the main unit via a specified connection cable. It is available with 1 m or 2 m cable lengths, allowing users to balance measurement accuracy and installation flexibility. Placing the test head close to the device under test minimizes signal path length and reduces parasitic inductance and capacitance that would otherwise affect high-frequency impedance measurements. This design supports stable and reproducible results while reducing bench space requirements in laboratory environments. For measurements of components with different package types, the IM7583 is typically used in combination with the IM9202 test fixture. The IM9202 supports impedance measurements up to 600 MHz and is designed for both surface-mount and leaded components, providing a stable two-terminal contact interface. Defined contact geometry ensures reproducible placement of the device under test and reliable electrical contact, reducing measurement variation and enabling accurate characterization of HF components. For dedicated SMD measurements, the IM7583 can also be used with the IM9201 SMD test fixture. For stable mounting, the selected test fixture is mounted on the IM9200 stand, which provides a secure base and a defined mechanical connection between the test head and the fixture and includes a magnifier to facilitate handling of small components. The IM9906 adapter is required to connect the 7 mm interface of the test fixture to the analyzer test head’s 3.5 mm connector. Calibration and Measurement Integrity The optional IM9905 calibration kit provides open, short and load reference standards for correction of system-related measurement errors. By compensating for parasitic effects introduced by fixtures and the test head, the kit supports stable measurement accuracy over time. Connection of the calibration standards is performed via the same IM9906 adapter used for the test fixture. The optional IM9905 calibration kit supplies OPEN, SHORT and LOAD reference standards for reducing system-related measurement deviations in high-frequency impedance measurements up to 3 GHz. Calibration is applied to the measurement path up to the defined reference plane, covering the analyzer test head and the associated connection interfaces. The calibration standards are connected using the IM9906 adapter, which is also used for test fixtures

HIOKI IM3570 impedance analyzer for high-precision impedance, inductance and capacitance measurements from 4 Hz to 5 MHz – ideal for lab, R&D and production use. Order now from HIOKI Europe.

Optional GPIB interface card for installation in the IM3523, IM3533, IM3533-01, IM3590, IM7580A, IM7581, IM7583, IM7585, IM7587 impedance meters. 

Optional HIOKI RS-232C interface card for installation in the HIOKI impedance measuring instruments IM3523, IM3533, IM3533-01, IM3590, IM7580A, IM7581, IM7583, IM7585, and IM7587.

The GPIB connector cable is a 2-meter long cable designed for use with all Hioki products that are equipped with a GPIB interface. This cable ensures reliable connectivity and data transfer for your test and measurement equipment. Technical Details: Cable type: GPIB connector cable Length: 2 meters Compatible devices: All Hioki products with GPIB interface

The 9637 is a RS-232c cross type cable for two-way communication between PC or other controlling device and a Hioki Product equipped with RS232c interface as feature or option. Technical Details: Connectors: 9pin female (both ends) Cable Type: Cross Length: 1.8m