ZFSC-2-2-S+ vs ZN2PD2-50-S+ | 2-Way RF Splitter
The Mini-Circuits ZFSC-2-2-S+ and ZN2PD2-50-S+ are 50Ω, 2-way, 0° coaxial power splitters with SMA connectors, but they target very different frequency and power requirements.
ZFSC-2-2-S+ – best for 10 MHz–1 GHz applications requiring low loss and compact size.
ZN2PD2-50-S+ – best for 500 MHz–5 GHz systems requiring higher RF power and DC pass.
Key Specifications
| Parameter | ZFSC-2-2-S+ | ZN2PD2-50-S+ |
| Frequency Range | 10–1000 MHz | 500–5000 MHz |
| Number of Ways | 2 | 2 |
| Phase | 0° | 0° |
| Impedance | 50Ω | 50Ω |
| Insertion Loss Typ.* | 0.4 dB | 0.8 dB |
| Isolation Typ. | 28 dB | 25 dB |
| Amplitude Unbalance Typ. | 0.1 dB | 0.05 dB |
| Phase Unbalance Typ. | 0.5° | 0.5° |
| Max. RF Input as Splitter | 1W | 10W |
| DC Pass | No dedicated DC-pass function | Yes |
| DC Current | — | 600 mA total, 300 mA per port |
| Connector | SMA | SMA |
| Case Style | K18 | VVV845 |
ZFSC-2-2-S+: For Low-Frequency RF Distribution
The ZFSC-2-2-S+ is designed for applications from 10 MHz to 1 GHz.
Its key advantages are:
Lower insertion loss
Good 28 dB typical isolation
Compact coaxial construction
Coverage down to 10 MHz
SMA interfaces
Typical applications include:
VHF/UHF systems
Cellular equipment
RF instrumentation
Laboratory signal distribution
The maximum input power is 1W when used as a splitter.
Choose ZFSC-2-2-S+ when your system operates below 1 GHz and low insertion loss is more important than high power or DC pass.
ZN2PD2-50-S+: For 5GHz, High Power and DC Pass
The ZN2PD2-50-S+ covers 500 MHz to 5 GHz, making it suitable for modern wireless, GPS, cellular and satellite applications.
Its main advantages include:
Frequency coverage through 5 GHz
Up to 10W RF input
DC pass through the RF paths
Up to 600 mA total DC current
Excellent 0.05 dB typical amplitude balance
Mini-Circuits lists cellular, GPS/L-band, PCS/DCS/UMTS, satellite distribution and SATCOM among its applications.
Choose ZN2PD2-50-S+ when higher frequency, higher RF power or DC bias distribution is required.
Conclusion
These two Mini-Circuits splitters are not direct substitutes.
10 MHz–1 GHz / Low Loss → ZFSC-2-2-S+
Choose it for VHF, UHF and general RF distribution where compact size and low insertion loss are priorities.
500 MHz–5 GHz / 10W / DC Pass → ZN2PD2-50-S+
Choose it for cellular, GPS, SATCOM and other higher-frequency systems requiring greater power handling or DC feed through the RF ports.
The most important selection factors are therefore frequency range, RF input power and whether DC pass is required.
Stock and Quote
DataStorageIC supports sourcing for Mini-Circuits ZFSC-2-2-S+, ZN2PD2-50-S+ and related RF power splitters/combiners.
Contact us with the required model, quantity and delivery destination for current stock, pricing and RFQ.
Frequently Asked Questions
Can ZN2PD2-50-S+ replace ZFSC-2-2-S+?
Only when the operating frequency is above 500 MHz. ZFSC-2-2-S+ covers down to 10 MHz, while ZN2PD2-50-S+ starts at 500 MHz.
Which model handles more RF power?
The ZN2PD2-50-S+ supports up to 10W input when used as a splitter, compared with 1W for the ZFSC-2-2-S+.
Which model supports DC pass?
The ZN2PD2-50-S+ is specifically designed as a DC-pass splitter. Its datasheet specifies up to 600 mA total DC current, with 300 mA per output port.
Which splitter is better for SATCOM or GPS?
The ZN2PD2-50-S+ is generally more suitable because it covers 500 MHz–5 GHz and supports DC pass, which can be useful for powering active antennas or other RF front-end devices through the coaxial path.
