Switch-Filter Module SPST / SPDT / SP3T
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Product Overview
Shenzhen Switch-Filter Module (SPST / SPDT / SP3T Switch-Filter Modules) is a high-performance microwave component product from HS Microwave. This manual compiles technical specifications for all models in the series, for engineering design, system integration, and procurement reference. All data is from original factory test reports, unmodified.
Key Features
- Integrates switching & filtering in one module
- Reflective / absorptive architectures available
- SPST / SPDT / SP3T fully covered
- Isolation ≥60 dB, low insertion loss
- Fast switching ≤200 ns (low freq) / ≤80 ns (high freq)
- 50Ω impedance matched
- Ideal for signal routing & channel switching
- Compact for easy system integration
Typical Applications
- EW systems
- Phased-array beam switching
- ATE (Automatic Test Equipment)
- relay systems
- Radar channel selection
- SIGINT
Models & Specifications
| Type | Model | Freq(GHz) | IL(dB) | VSWR | Isol.(dB) | Sw.Time(ns) | Power(W) |
| SPST反射 | HSK1-111 | 0.5-2 | 0.6 | 1.4 | 60 | 200 | 2 |
| SPST反射 | HSK1-211 | 1-4 | 1.0 | 1.5 | 60 | 100 | 2 |
| SPST反射 | HSK1-311 | 2-8 | 1.4 | 1.6 | 60 | 100 | 2 |
| SPST反射 | HSK1-411 | 8-12 | 1.8 | 1.8 | 60 | 80 | 2 |
| SPST反射 | HSK1-511 | 6-18 | 2.0 | 2.0 | 60 | 80 | 2 |
| SPST反射 | HSK1-611 | 2-18 | 2.2 | 2.2 | 60 | 80 | 2 |
| SPST吸收 | HSK1-121 | 0.5-2 | 0.8 | 1.4 | 60 | 200 | 2 |
| SPST吸收 | HSK1-221 | 1-4 | 1.2 | 1.5 | 60 | 100 | 2 |
| SPST吸收 | HSK1-321 | 2-8 | 1.4 | 1.6 | 60 | 100 | 2 |
| SPST吸收 | HSK1-421 | 8-12 | 1.8 | 1.8 | 60 | 80 | 2 |
| SPST吸收 | HSK1-521 | 6-18 | 2.6 | 2.0 | 60 | 80 | 2 |
| SPST吸收 | HSK1-621 | 2-18 | 2.8 | 2.2 | 60 | 80 | 2 |
| SPDT反射 | HSK2-111 | 0.5-2 | 1.0 | 1.4 | 60 | 200 | 2 |
| SPDT反射 | HSK2-211 | 1-4 | 1.2 | 1.5 | 60 | 100 | 2 |
| SPDT反射 | HSK2-311 | 2-8 | 1.8 | 1.6 | 60 | 100 | 2 |
| SPDT反射 | HSK2-411 | 8-12 | 2.0 | 1.8 | 60 | 80 | 2 |
| SPDT反射 | HSK2-511 | 6-18 | 2.6 | 2.0 | 60 | 80 | 2 |
| SPDT反射 | HSK2-611 | 2-18 | 2.8 | 2.2 | 60 | 80 | 2 |
| SPDT吸收 | HSK2-121 | 0.5-2 | 1.0 | 1.4 | 60 | 200 | 2 |
| SPDT吸收 | HSK2-221 | 1-4 | 1.2 | 1.5 | 60 | 100 | 2 |
| SPDT吸收 | HSK2-321 | 2-8 | 1.6 | 1.6 | 60 | 100 | 2 |
| SPDT吸收 | HSK2-421 | 8-12 | 2.2 | 1.8 | 60 | 80 | 2 |
| SPDT吸收 | HSK2-521 | 6-18 | 2.8 | 2.0 | 60 | 80 | 2 |
| SPDT吸收 | HSK2-621 | 2-18 | 3.0 | 2.2 | 60 | 80 | 2 |
| SP3T反射 | HSK3-111 | 0.5-2 | 1.0 | 1.4 | 60 | 200 | 2 |
| SP3T反射 | HSK3-211 | 1-4 | 1.2 | 1.5 | 60 | 100 | 2 |
| SP3T反射 | HSK3-311 | 2-8 | 1.8 | 1.6 | 60 | 100 | 2 |
| SP3T反射 | HSK3-411 | 8-12 | 2.0 | 1.8 | 60 | 80 | 2 |
| SP3T反射 | HSK3-511 | 6-18 | 2.6 | 2.0 | 60 | 80 | 2 |
| SP3T反射 | HSK3-611 | 2-18 | 2.8 | 2.2 | 60 | 80 | 2 |
| SP3T吸收 | HSK3-121 | 0.5-2 | 1.2 | 1.4 | 60 | 200 | 2 |
| SP3T吸收 | HSK3-221 | 1-4 | 1.4 | 1.5 | 60 | 100 | 2 |
| SP3T吸收 | HSK3-321 | 2-8 | 2.0 | 1.6 | 60 | 100 | 2 |
| SP3T吸收 | HSK3-421 | 8-12 | 2.4 | 1.8 | 60 | 80 | 2 |
| SP3T吸收 | HSK3-521 | 6-18 | 3.0 | 2.0 | 60 | 80 | 2 |
| SP3T吸收 | HSK3-621 | 2-18 | 3.2 | 2.2 | 60 | 80 | 2 |
General Specifications
| Parameter | Specification |
| Impedance | 50 Ω |
| Operating Temp. | -40°C ~ +85°C |
| Storage Temp. | -55°C ~ +105°C |
| Rel. Humidity | ≤95% (non-condensing) |
| Control Voltage | TTL/CMOS compatible |
| Switch Life | >1 million cycles |
| Package | Shielded metal enclosure |
| Power Handling | 2 W (CW) |
| Reflective vs Absorptive | Select per application |
Model Naming Convention
HSK – N – XXX
│ │ └─ XXX = Freq. code (111=0.5-2GHz etc.)
│ └────── N = Poles (1=SPST, 2=SPDT, 3=SP3T)
└────────── HSK = HuaShi Switch





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