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Surge Protection Device - SMA-Type, Male to Female
Product Code: PROSPD11SMA
- Easy installation
- Brass metal casing
- Strong protection and high reliability
- High discharge capability
- IP20 rated
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Product Description
Coaxial SMA Surge Protection Device
Our coaxial SMA SPD shields your aerial system's devices from power surges. Equipment such as TVs, amplifiers, and receiver boxes would benefit from having this line of defense.
What is a Surge Protection Device (SPD)?
Surge Protective Devices (SPD) are used to protect installations from electrical power surges known as “transient overvoltages”.
They are also used to protect sensitive electronic equipment connected to the installation, such as computers, televisions. Any equipment with sensitive electronic circuitry can be vulnerable to damage by transient overvoltages.
The effects of a surge can result in either instant failure or damage to the equipment only evident over a longer period of time. It is important to remember that protecting the electrical installation alone, and not the other services, could leave another route for transient voltages to enter the installation.
There are three different types of Surge Protective Devices:
Type 1 SPD: installed at the origin, e.g. main distribution board.
Type 2 SPD: installed at sub-level.
Type 3 SPD: installed close to the protected load. They must only be installed as a supplement to Type 2 SPD.
The PROception range of SPDs are all Type 2.
What causes transient overvoltages?
Natural transient overvoltages mostly occur due to direct lightning strikes but can also occur from indirect strikes too.
Man-made transients appear due to the switching of motors and transformers, along with some types of lighting. Historically this has not been an issue within domestic installations but more recently, installations are changing with the advent of electric vehicle charging, heat pumps have made transients much more likely to occur within domestic installations.
How do SPDs work?
The gas discharge tube (GDT) is sealed with ceramic and its interior consists of two or more metal electrodes with gaps filled with the inert gases, argon and neon. As the overvoltage passes through, it arcs between the electrodes, allowing current to flow to ground, thus protecting your devices.
Technical Information:
| Electrical Characteristics | ||||||
| Product Code | PROSPD11SMA | |||||
| Connection Type | SMA | |||||
| Interface Type | Male to Female | |||||
| Gas Discharge Tube Arrester | 90V/230V/350V | |||||
| Frequency Range | DC - 2.5GHz | |||||
| Operating Current | None | |||||
| Max. Discharge Current (8/20μs) (Imax) | 10KA | |||||
| Insertion Loss | <0.2dB | |||||
| Insulation Resistance | ≥5000MΩ | |||||
| Impedance | 50Ω | |||||
| Input Power | <20W | <50W | <100W | <200W | <400W | <500W |
| Initial Discharge Voltage | ≥50V | ≥70V | ≥120V | ≥190V | ≥280V | ≥280V |
| Protection Mode(s) | Common Mode | |||||
| Mechanical Characteristics | ||||||
| Technology | Gas Discharge Tube (GDT) | |||||
| Connection to Network | Connector Male to Female | |||||
| Mounting | Feedthrough | |||||
| Housing Material | Brass HPb59-1 GB4425-84 | |||||
| Working Temperature (°C) | -40 to 70 | |||||
| Degree of Protection | IP20 | |||||
| Failsafe Mode | Short-Circuit | |||||
| Disconnection Indicator | Transmission Interrupt | |||||
Technical Specification
Width
30mm
Depth
30mm
Height
70mm
Weight
0.09kg
12/06/2025
08/06/2025
Service was good. VAT & postage high but we’re in the eu here. Havnt tried it yet.
31/05/2025
Ordered pole, bracket and end stopper online to collect from Rutland Road Sheffield. No problem ordering and all items were in stock. Was informed when order was ready and was served by friendly staff on collection.
26/05/2025
Fast and easy service with good quality goods
25/05/2025
Good intial service, products arrived safely. Downside, found the products about 50% cheaper at another retailer who are reliable and trusted, so not lower quality and the aerial which was recommended for my area is not suitable and the quality of reception is worse then the original aerial.
Google Company Reviews
12/06/2025
Superb service, communication, price and delivery time. I'm a first time user but certainly won't be my last. Thanks again
12/06/2025
First of all the product was as described, well packed and did the job I bought it for. Super fast delivery! Great updates on the the order and delivery process. Thank you all!
08/06/2025
First time to order from Blake UK. You won't be disappointed ordered to N.I. great customer service and updates on delivery status. Family business and great follow-up with customers. Do not hesitate to order from Blake.
30/05/2025
Quick delivery- great value for money - perfect description of product
25/05/2025
Absolutely amazing service, fast delivery and well packaged. perfect hardware for mounting my radio antenna.
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