• Str. Prof. Onisifor Ghibu No.1
    Sibiu, RO 550020
  • +(40) 742 854 185

roWaves Technologies

Certified Company ISO 9001-2008

Wurth Eelektronik-74270191 toroid (4W620)

Colour code: black/grey
Manufacturer code: 74270191
Ordering code: FT-15
Manufacturer part no.: WE-74270191
Material no.: 4W620
Permeability (μi): 620
Frequency range: 1 – 20MHz (wideband BalUn, depends on the application)
RF max. power: 1500-2000W
Curie temp.: 150°C
Ext. diameter: 61mm
Int. diameter: 35.5mm
Height: 20mm
Price :

 14,10

12 in stock

Usable frequency ranges, depending on the application:

broadband transformers: 1 – 30 MHz

RFI / EMI / CMC suppression: 1 – 20 MHz


An impedance> 1000Ω (for operating frequency) is sufficient for most applications. The coils should be made with very good quality RG-58 coaxial cable. Any high quality RG-58 coaxial cable can allow 1kW power in 160 / 80m. For higher bands> 10MHz, it is recommended to use the additional teflon insulated coaxial cable to keep the losses low.

According to the table below, for Wurth Elektronik 74270191 (our case), between 6 turns (80/40 / 20m) and 10 turns (160m) would be enough to obtain an impedance of at least 800-1000Ω, from 1.8 – 14MHz .

Additional information

Weight 175 g
Dimensions 6.1 × 6.1 × 2 cm

Reviews

There are no reviews yet.

Be the first to review “Wurth Eelektronik-74270191 toroid (4W620)”

Your email address will not be published. Required fields are marked *

We use cookies to give you the best online experience on this website, by agreeing to accept their use here, in accordance with our policy.

Privacy Settings

When you visit any website, this can store or retain information in your browser, normally used as cookies. You may limit or control these personal cookie services here.

Decline
Accept
0
    0
    Your Cart
    Your cart is empty
      Calculate Shipping
      Apply Coupon
      ×
      Hi there,
      please choose one of our colleagues below, to request the information you need, or send us an email to support@rowaves.com. You can also use the contact form on the "Contact" page. We are available ONLY  Monday to Friday, from 9-17h. Thank you!
      × Need help?