Universal Gas Tube Coaxial Surge Protectors (BPS-P8AX Series) Hardwired Surge Protection
- Sheet
- P
- Listing
- None published
- Origin
- Hamilton Twp, NJ
- Revised
- 2026-08-27
The BPS-P8AX Series is a coaxial surge protector using a replaceable gas tube, DC to 5 GHz, in three DC breakdown ratings, waterproof to IP65, and available with three grounding options.
Configuration options
Every unit is built to order. The following attributes are configurable.
| Attribute | Options |
|---|---|
| 1 | High-Frequency Surge Protection |
| 2 | 20kA transient amps protection (8/20μs) |
| 3 | 5kA transient amps protection (10/350μs) |
| 4 | DC Pass to +/-48V |
| 5 | VSWR < 1.2 |
| 6 | Insertion Loss < 0.1dB |
| 7 | Bi-directional, series installed |
| 8 | Waterproof |
| 9 | Removable GDT |
Specifications
| Brooks Power System Part Number | BPS-P8AX09 | BPS-P8AX25 | BPS-P8AXSO |
|---|---|---|---|
| Frequency Range | DC-5GHz | DC-5GHz | DC-5GHz |
| DC Turn-on(Breakdown) | 90-130V | 200-300V | 400-600V |
| Technology | Gas Discharge Tube | Gas Discharge Tube | Gas Discharge Tube |
| Insertion Loss | <̲0.1db | <̲0.1db | <̲0.1db |
| Return Loss | >̲20db | >̲20db | >̲20db |
| VSWR | <1.2:1 | <1.2:1 | <1.2:1 |
| Ipeak (8/20 μs ) | 20KA | 20KA | 20KA |
| Max Power | 25W | 190W | 780W |
| Max Currents | 10A | 10A | 10A |
| Impedance | 50 omhs¹ | 50 omhs¹ | 50 omhs¹ |
| Connection Method | Series (Bi-Directional) | Series (Bi-Directional) | Series (Bi-Directional) |
| Connectors | N, TNC, SMA, F, BNC, 7/16 | N, TNC, SMA, F, BNC, 7/16 | N, TNC, SMA, F, BNC, 7/16 |
| Grounding | M6 Screw, Bulkhead, Bracket | M6 Screw, Bulkhead, Bracket | M6 Screw, Bulkhead, Bracket |
| Enironmental Rating | IP65 | IP65 | IP65 |
| Operating Temp | -50ºC to +85ºC | -50ºC to +85ºC | -50ºC to +85ºC |
| Operating Altitude | 13,000 ft ( 4,000m ) | 13,000 ft ( 4,000m ) | 13,000 ft ( 4,000m ) |
| Relative Humidity | Up to 5 to 95%, Non-condensing, up to 100% | Up to 5 to 95%, Non-condensing, up to 100% | Up to 5 to 95%, Non-condensing, up to 100% |
| Weight | 4.4 oz | 4.4 oz | 4.4 oz |
| Standard Compliance | UL497E |
1 Impedance for F-Type Connector is 75 Ohms
Compliance and listings
Standards cited: UL497E
Typical applications
BPS-P8AX units are specified on tower mounted amplifiers, GPS, antenna systems, tower top electronics, transmitters and receivers, WiFi, broadband wireless, and WiMax. They are installed in series and work in either direction.
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