What are the differences between Kinghelm's Gen 1 IPEX and Gen 4 IPEX cables?

(1) Height: Gen 1 IPEX (MHF-I) has a higher receptacle height (1.25 mm); Gen 4 IPEX (MHF-4) is lower and thinner (0.6 mm), making it suitable for ultra-thin and compact devices.

(2) Frequency range: Gen 1 typically supports up to 6 GHz; Gen 4 supports higher frequencies, up to 12 GHz, with better high-frequency performance.

(3) Size and pitch: Gen 4 is significantly smaller in volume (Gen 1: 11.7 mm³; Gen 4: 2.4 mm³) and has a smaller pad pitch, making it ideal for space-constrained PCB designs.

(4) Mating life: Gen 1 offers a relatively higher number of mating cycles (50 cycles); Gen 4 is more compact and delicate, requiring gentler handling during mating/unmating.

(5) Cable compatibility: Gen 1 supports a wider selection of cable types (RF0.81, RF1.13, RF1.37, RG178); Gen 4 is typically used with fine/ultra-fine coaxial cables (RF0.81, RF1.13, RF1.37) and is often applied in compact modules.

The two generations are not interchangeable; the receptacle and cable connector must be matched by the same version.

About Kinghelm

Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.