UMS RF Switches DC–26GHz | CHS5104, CHS7012 and CHS8618
Mfr. Part #：
CHS2411-QDG / CHS5100-99F / CHS5104-99F / CHS5104-FAB / CHS5105-QAG / CHS7012-99F / CHS8618-99F
Manufacturer：
UMS / United Monolithic Semiconductors
Switch Type：
Reflective SPDT and SP4T
Package/Case：
Die, QFN, Hermetic SMD
Product Description
UMS reflective RF switches cover applications from DC to 26 GHz. The portfolio includes broadband SPDT switches for signal routing and a K-band SP4T switch for multi-channel selection.
Different models are available for low insertion loss, wide bandwidth, high input-power handling or hermetic packaging. Typical uses include radar, electronic warfare, instrumentation, communication equipment and microwave front-end modules.
UMS RF Switch Selection
| Part Number | Configuration | Frequency Range | Insertion Loss | Isolation | P-1dB IN | Package |
| CHS2411-QDG | Reflective SP4T | 23–26 GHz | 2.9 dB | 35 dB | 23.5 dBm | QFN |
| CHS5100-99F | Reflective SPDT | DC–20 GHz | 2.1 dB | 30 dB | 20 dBm | Die |
| CHS5104-99F | Reflective SPDT | DC–4 GHz | 0.5 dB | 35 dB | 30 dBm | Die |
| CHS5104-FAB | Reflective SPDT | DC–6 GHz | 1 dB* | 30 dB | 30 dBm | Hermetic SMD |
| CHS5105-QAG | Reflective SPDT | DC–4 GHz | 0.5 dB | 35 dB | 30 dBm | QFN |
| CHS7012-99F | Reflective SPDT | DC–12 GHz | 1.4 dB | 30 dB | 40.5 dBm | Die |
| CHS8618-99F | Reflective SPDT | 6–18 GHz | 1.3 dB | 34 dB | 42 dBm | Die |
Product Selection and Applications
Low-Loss DC–4GHz Switching
The CHS5104-99F and CHS5105-QAG offer similar RF performance. Select the CHS5104-99F for bare-die integration or the CHS5105-QAG when a QFN-packaged device is preferred. Both are based on UMS GaAs pHEMT technology.
Hermetic DC–6GHz Switching
The CHS5104-FAB uses a hermetic metal-ceramic SMD package and is intended for space, military and communication systems requiring packaged construction and extended DC–6 GHz coverage.
High-Power Broadband Switching
The CHS7012-99F and CHS8618-99F are GaN-on-SiC reflective SPDT switches designed for higher input-power handling. The CHS7012-99F supports broadband operation beginning at DC, while the CHS8618-99F targets microwave systems operating across 6–18 GHz.
Ultra-Wideband and K-Band Options
The CHS5100-99F is suitable for broadband signal routing, ECM, electronic warfare, instrumentation and wideband signal-processing equipment. The CHS2411-QDG provides four selectable RF paths for 23–26 GHz K-band systems and is supplied in a 4 × 4 mm QFN package.
Frequently Asked Questions
Q1: Which UMS switch offers the lowest insertion loss?
The CHS5104-99F and CHS5105-QAG provide the lowest listed insertion loss in this group. The main selection difference is Die versus QFN packaging.
Q2: Which model supports the highest input power?
The CHS8618-99F has the highest listed input P-1dB, followed by the CHS7012-99F. Both use GaN-on-SiC technology and are supplied as bare Die.
Q3: What is the difference between CHS5104-99F and CHS5104-FAB?
The CHS5104-99F is a DC–4 GHz bare-die switch, while the CHS5104-FAB extends operation to DC–6 GHz and uses a hermetic metal-ceramic SMD package.
Q4: Which model covers DC to 20GHz?
The CHS5100-99F is the widest-band switch beginning at DC, making it suitable for broadband measurement, signal-processing and electronic-warfare systems.
Q5: Which product provides more than two RF paths?
The CHS2411-QDG is a reflective SP4T switch with four selectable outputs. The other listed products are reflective SPDT switches.
Contact DataStorageIC for UMS switch stock, pricing, datasheets, lead time and RFQ support.
