(forMurata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
!Note
• Please read rating from the website of storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
sales representatives or product engineers before ordering.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
C50E.pdf
07.2.22
BLM21P Series
s
Features
The chip ferrite beads BLM series is designed to
function nearly as a resistor at noise frequencies,
which greatly reduces the possibility of resonance and
leaves signal wave forms undistorted.
BLM series is effective in circuits without stable
BLM_P series can be used in high current circuits due
to its low DC resistance.
Impedance
(at 100MHz/20°C)
(ohm)
22
±25%
30 (Typ.)
60
±25%
220
±25%
330
±25%
Rated Current
(mA)
6000
3000
3000
2000
1500
DC Resistance (max.)
(ohm)
0.01
0.015
0.025
0.050
0.09
0.5±0.2
1
2.0±0.2
1.25±0.2
EIA CODE : 0805
(in mm)
Part Number
BLM21PG220SH1
BLM21PG300SH1
BLM21PG600SH1
BLM21PG221SH1
BLM21PG331SH1
Operating
Temperature Range
(°C)
-55 to +125
-55 to +125
-55 to +125
-55 to +125
-55 to +125
At rated current higher than 1500mA, derating is required.
Please refer to p.29, "Derating of Rated Current".
s
Equivalent Circuit
s
Impedance - Frequency (Typical)
600
450
Impedance (Ω)
BLM21PG331SH1
BLM21PG221SH1
BLM21PG600SH1
300
BLM21PG300SH1
BLM21PG220SH1
150
(Resistance element becomes dominant
at high frequencies.)
0
1
10
100
Frequency (MHz)
1000
s
Impedance - Frequency Characteristics
BLM21PG220SH1
40
60
BLM21PG300SH1
30
Z
Impedance (Ω)
Impedance (Ω)
45
R
20
Z
30
R
X
10
15
X
0
1
10
100
Frequency (MHz)
1000
0
1
10
100
Frequency (MHz)
1000
Continued on the following page.
0.85±0.2
25
!Note
• This PDF catalog is downloadedand
!CAUTION
(forMurata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
!Note
• Please read rating from the website of storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
sales representatives or product engineers before ordering.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
C50E.pdf
07.2.22
Continued from the preceding page.
1
s
Impedance - Frequency Characteristics
BLM21PG600SH1
120
400
BLM21PG221SH1
90
Impedance (Ω)
Impedance (Ω)
300
Z
60
R
Z
200
R
30
X
0
1
10
100
Frequency (MHz)
1000
100
X
0
1
10
100
Frequency (MHz)
1000
BLM21PG331SH1
600
450
Impedance (Ω)
Z
300
R
150
X
0
1
10
100
Frequency (MHz)
1000
BLM31P Series
s
Features
The chip ferrite beads BLM series is designed to
function nearly as a resistor at noise frequencies,
which greatly reduces the possibility of resonance and
leaves signal wave forms undistorted.
BLM series is effective in circuits without stable
BLM_P series can be used in high current circuits due
to its low DC resistance.
Impedance
(at 100MHz/20°C)
(ohm)
33
±25%
50 (Typ.)
120
±25%
390
±25%
600
±25%
Rated Current
(mA)
6000
3000
3000
2000
1500
DC Resistance (max.)
(ohm)
0.01
0.025
0.025
0.05
0.09
0.7±0.3
3.2±0.2
1.6±0.2
in mm
Part Number
BLM31PG330SH1
BLM31PG500SH1
BLM31PG121SH1
BLM31PG391SH1
BLM31PG601SH1
Operating
Temperature Range
(°C)
-55 to +125
-55 to +125
-55 to +125
-55 to +125
-55 to +125
At rated current higher than 1500mA, derating is required.
Please refer to p.29, "Derating of Rated Current".
26
1.1±0.2
!Note
• This PDF catalog is downloadedand
!CAUTION
(forMurata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
!Note
• Please read rating from the website of storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
sales representatives or product engineers before ordering.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
As shown in the picture, why do I feel that the heater resistor is not working?
R291 is a negative temperature coefficient thermistor with a normal temperature of 22K. The comparator LM311 outputs a h...
I recently used CycloneV FPGA to debug DDR3. When I was drawing the board, I didn't notice the oct_rzqin pin. The pin was in a floating state. I saw in the handbook that this pin should be connected t...
[font=楷体_GB2312][size=3]Precise signal conditioning and high-resolution measurements are no longer limited to industrial or instrumentation applications. Designers of portable consumer electronic devi...
In recent years, with the application of the IEC61850 standard and the development and deployment of optoelectronic transformers, the concept of digital substations has been put into practical use ...[Details]
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[Details]
For healthcare professionals, accurate diagnosis and treatment are crucial for a clear picture of a person's health. However, healthcare professionals often rely on tests at medical facilities, cli...[Details]
Gross profit margin jumped from 13.6% in the first half of last year to 25.9%, almost doubling year-on-year.
On August 21, RoboSense released its interim performance report, in which the...[Details]
On August 22, South Korean media Nate reported on the 20th local time that Samsung Electronics is introducing Hyper Cell technology into its most advanced 2nm process technology, striving to improv...[Details]
In June 2014, the Ministry of Industry and Information Technology issued 4G FD-LTE licenses to China Unicom and China Telecom. Together with the 4G TD-LTE licenses issued to China Mobile, China Uni...[Details]
Through AI connection technology supported by Qualcomm X85 5G modem and RF and Qualcomm FastConnect 7900 mobile connection system, seamless switching can be achieved between cellular net...[Details]
PowiGaN achieves 95% efficiency at both light and full loads, meeting critical operational and safety requirements.
DARWIN, Australia and SAN JOSE, Calif.,
August 22, 2025 – Powe...[Details]
According to Nikkei, Japan has performed poorly in responding to China's power semiconductor challenges.
There are five major companies in Japan's power chip market: Mitsubishi Electric,...[Details]
Puttshack's Trackaball uses the Nordic nRF54L15 system-on-chip (SoC) to monitor sensors and enable Bluetooth low energy connectivity, while the nPM2100 power management integrated circuit (PMIC) ...[Details]
Analog Devices held a third-quarter fiscal 2025 earnings conference call. Vincent T. Roche, CEO and Chairman of the Board, and Richard C. Puccio, Executive Vice President and Chief Financial Office...[Details]
I believe everyone has heard of memory. If your computer is slow, your experts may recommend upgrading it to a larger capacity. But what exactly is computer memory used for? Why does memory capacit...[Details]
On August 20, it was reported that the specifications of Intel's upcoming Panther Lake mobile processor appeared on the Intel GFX CI website, which mainly focuses on Intel's open source Linux drive...[Details]
The drive shaft is the shaft in a universal joint that transmits power. As a high-speed, low-support rotating body, its dynamic balance is crucial. Generally, drive shafts undergo dynamic balancing...[Details]
This article uses the Allwinner T507 quad-core automotive-grade processor as the development board. This article explains how to configure Ethernet for the T507 development board. Other boards may ...[Details]
Analog electronics
京公网安备 11010802033920号
EEWORLD
