AVX Corporation released new UBC 550 Series ultra-broadband capacitors designed to deliver reliable, repeatable performance from 16 KHz to 70+ GHz in ultra-broadband microwave and mmWave RF applications with stringent operating requirements. The new UBC 550Z, 550U and 550L Series ultra-broadband capacitors have a rugged and compact single-piece, surface-mount, multilayer ceramic construction, RoHS-compliant materials and exhibit ultra-low insertion loss, excellent return loss, flat frequency response and high unit-to-unit repeatability. These characteristics make the series ideally suited for use in DC blocking, coupling, bypassing and feedback applications within optoelectronics, high speed data networks, transimpedance amplifiers, broadband test equipment, synchronous optical networks (SONETs), transmit optical subassemblies (TOSA) and receive optical subassemblies (ROSA) and other ultra-broadband microwave and mmWave RF applications.

The new UBC 550Z Series ultra-broadband capacitors have an orientation-insensitive 0201 form factor measuring 0.58 mm x 0. 3 mm and support operating frequencies spanning 160 KHz with -3 dB roll-off to 70+ GHz at 25°C with no bias applied and with typical insertion loss of < 0.4dB. They are rated for a minimum of 10 nF capacitance, 6.3 VDC operation from -55°C to +125°C, and 10 VDC operation from -55°C to +85°C. They also exhibit a ±22 percent temperature coefficient of capacitance (TCC) to +125°C, a ±15 percent TCC to +85°C, and 108 Ω or 107 Ω minimum insulation resistance at +25°C or +125°C and working voltage DC (WVDC). 

The new UBC 550U Series ultra-broadband capacitors have an orientation-sensitive 0201 form factor measuring 0.86 mm x 0.33 mm and support operating frequencies spanning 16 KHz with -3 dB roll-off to 70+ GHz at 25°C with no bias applied and with typical insertion loss of 0.4 dB. They are rated for 100nF capacitance and 6.3 VDC operation from -55°C to +85°C, and they exhibit a ±15 percent TCC over the rated temperature range and 1010 Ω or 109 Ω minimum insulation resistance at +25°C or +85°C and rated voltage.

The new UBC 550L Series ultra-broadband capacitors have an orientation-insensitive 0402 form factor measuring 1.016 mm x 0.508 mm and support operating frequencies spanning 16 KHz with -3dB roll-off to 70+ GHz at 25°C with no bias applied and with typical insertion loss of < 0.5dB. They are rated for 100nF capacitance, 16 WVDC from -55°C to +85°C, and 10 WVDC from -55°C to +125°C. They also exhibit a ±15 percent TCC to +85°C at 16 WVDC, a ±22 percent TCC to +125°C at 10 WVDC, and 108 Ω or 107 Ω minimum insulation resistance at +25°C or +125°C and WVDC. 

In addition, all three UBC 550 Series (UBC 550Z, 550L, and 550U) are rated for dielectric withstanding voltages of 250 percent WVDC for up to five seconds, are available in rugged SMT packages with standard tin- or optional gold-over-nickel terminations and are packaged on tape and reel in quantities of 500 or 1,000 pieces for compatibility with high speed, automated, pick-and-place manufacturing equipment.

UBC 550 Series ultra-broadband capacitors are immediately available as eight different part numbers: 550Z103PTT and 550Z103PCAT, 550U104MTT and 550U104MCA, and 550L104KTT, 550L104KCAT, 550L104VTT, and 550L104VCAT, and standard lead-time for the series is currently 24 weeks.