High Frequency Chip Inductors

To start, let us recap what we have discussed this week, we have AE235RAA and ST235RAA. Both are chip inductors. AE235RAA series is an outgassing compliant chip inductor, while ST235RAA is a chip inductor for critical applications. To end this three part post, we will now be discussing about ST312RAA.

ST312RAA is like ST235RAA, it is also a chip inductor for critical application. It has a small 0603 size, exceptional Q-factor, and high SRFs that make this series ideal for high frequency application. It has: a ceramic core material, silver-palladium-platinum-glass frit, ambient temperature of -40°C to 125°C @ Imax current and 125°C to 140°C @ derated current, and temperature coefficient of inductance 25 to 155 ppm/°C.

Figure 1 shows the graph that presents inductance (nH) versus frequency (MHz). Figure 2 shows the graph the presents Q-factor versus frequency (MHz).

Figure 1: Typical L vs Frequency

Figure 2: Typical Q vs Frequency

ST312RAA series comes in 48 part numbers each with different specifications. It has specs such as: inductance (nH), percent tolerance, Q min, SRF min (MHz), DCR max (Ω), and Imax (mA). For example, part number ST312RAA1N6JLZ has:

• Inductance = 1.6 nH
• Percent tolerance = 5
• Q min = 26
• SRF min = >5000 MHz
• DCR max = 0.022 Ω
• Imax = 700 mA
• Color code = Red

So if you want to know more of ST312RAA Chip Inductors, click on the link below:
High Frequency Chip Inductors 

Chip Inductor for Critical Applications

Just a little recap, an inductor is a passive electronic component that stores energy in the form of a magnetic field. Coilcraft's chip inductors deliver high performance in the smallest possible size, with high reliability in harsh environment. The first post we discussed about a series of outgassing complaint Coilcraft chip inductors. Now we will discuss about Chip Inductors for Critical Application.

Coilcraft's ST235RAA is a series of 0402 size chip inductor. Just like the AE235RAA series, ST235RAA series has: an exceptionally high Q-factors, especially at use frequency; outstanding self-resonant frequency; tight inductance tolerance; and excellent batch-to-batch consistency. It has: a ceramic core material; ambient temperature of -40°C to 125°C with Imax, 125°C to 260°C with derated current; and temperature coefficient of inductance of 25 to 155 ppm/°C.

Figure 1 shows the graph that presents inductance (nH) versus frequency (MHz). Figure 2 shows the graph the presents Q-factor versus frequency (MHz).

FIGURE 1: Typical L vs Frequency

FIGURE 2: Typical Q vs Frequency

ST235AAA series comes in 48 different part numbers that have their distinct specifications. Specifications such as: inductance (nH); percent tolerance; Q min; SRF min (GHz); DCR max (Ω); and Imax (mA). For example, ST235RAA1N0JLZ has:

• Inductance = 1.0 nH
• Percent tolerance = 5
• Q min = 20
• SRF min = >5.00 GHz
• DCR max = 0.045 Ω
• Imax = 600 mA

So if you want to know more of ST235RAA Chip Inductors, click on the link below:
Chip Inductor Series for Critical Applications

Outgassing Complaint Coilcraft Chip Inductors

This week, we will be dealing with inductors, specifically CHIP INDUCTORS. This post is the first of three posts that we will be giving about chip inductors. An inductor is a passive electronic component that stores energy in the form of a magnetic field. Coilcraft's chip inductors deliver high performance in the smallest possible size, with high reliability in harsh environment.

In this first post, we will be discussing about a high Q-factor chip inductor, Coilcraft's AE235RAA. AE235RAA is a series of outgassing compliant chip inductors. It has an exceptionally high Q-factors, outstanding self-resonant frequency, tight inductance tolerance, and high temperature materials allow operation in ambient temperatures up to 155 °C. It also passes NASA low outgassing specifications, and has a leach-resistant base metallization with tin-lead (Sn-Pb) terminations that ensures the best possible board adhesion.

Figure 1 shows the graph that presents inductance (nH) versus frequency (MHz). Figure 2 shows the graph the presents Q-factor versus frequency (MHz).

FIGURE 1: Typical L vs Frequency

FIGURE 2: Typical Q vs Frequency

AE235RAA series comes in 37 part numbers that differs in their specs, i.e inductance (nH), percent tolerance, Q min, SRF min (GHz), DCR max (Ω), and Imax (mA). For example, part number AE235RAA1N0JSZ has:

• Inductance = 1.0 nH
• Percent tolerance = 5
• Q min = 20
• SRF min = >5.00 GHz
• DCR max = 0.045 Ω
• Imax = 600 mA

So if you want to know more of AE235RAA Chip Inductors, click on the link below:
High Q-factor Chip Inductors