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BLM31KN271SH1L
+BOMFERRITE BEAD 270 OHM 1206 1LN
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ManufacturerMurata Electronics
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Mfr. Part #BLM31KN271SH1L
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In Stock27818
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Specifications
| Attribute | Value |
| Series | BLM |
| Part Status | Active |
| Base Product Number | BLM31KN |
| Filter Type | Power Line |
| Number of Lines | 1 |
| Impedance @ Frequency | 270 Ohms @ 100 MHz |
| Current Rating (Max) | 4.5A |
| DC Resistance (DCR) (Max) | 16mOhm |
| Ratings | AEC-Q200 |
| Operating Temperature | -55°C ~ 125°C |
| Package / Case | 1206 (3216 Metric) |
| Mounting Type | Surface Mount |
| Height (Max) | 0.071" (1.80mm) |
| Size / Dimension | 0.126" L x 0.063" W (3.20mm x 1.60mm) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Overview
Description
BLM31KN271SH1L is a Murata BLM31 series surface-mount ferrite bead used for EMI/RFI suppression. The "271" denotes 270 Ω impedance at 100 MHz, providing high-frequency attenuation with low DC resistance. It’s intended for placing in series with power or signal lines to clean noise in portable electronics, consumer, automotive, and telecom circuits. The "SH1L" suffix encodes size, lead termination, and RoHS/compliant reflow packaging. Operating temperature typically −55 to +125°C (per datasheet) and it is suitable for surface-mount reflow soldering. For exact dimensions, current rating, and DC resistance, consult the Murata BLM31KN271SH1L datasheet.
Equivalent
Do you want cross-reference equivalents from other manufacturers for the same impedance (≈270 Ω at 100 MHz) and same footprint (likely 1206) as BLM31KN271SH1L? If yes, specify target vendors (TDK, Würth, Yageo, Vishay, etc.) and current rating. I’ll provide exact part numbers.
Features
- Type: SMD ferrite bead for EMI suppression (BLM31 series)
- Impedance: 271 indicates about 270 Ω at 100 MHz
- Configuration: 2-terminal, surface-mount
- Package: Murata BLM31 size family; suitable for reflow soldering
- Electrical: Low DC resistance to minimize voltage drop; high-frequency noise suppression
- Environment: RoHS compliant; operates from -55°C to +125°C
- Applications: Filtering on power and signal lines in consumer/mobile electronics and similar SMD assemblies
- Impedance: 271 indicates about 270 Ω at 100 MHz
- Configuration: 2-terminal, surface-mount
- Package: Murata BLM31 size family; suitable for reflow soldering
- Electrical: Low DC resistance to minimize voltage drop; high-frequency noise suppression
- Environment: RoHS compliant; operates from -55°C to +125°C
- Applications: Filtering on power and signal lines in consumer/mobile electronics and similar SMD assemblies
Pinout
- Pin count: 2 terminals
- Function: Surface-mount ferrite bead used to suppress EMI on a single line (noise filter).
- Function: Surface-mount ferrite bead used to suppress EMI on a single line (noise filter).
Manufacturer
Manufacturer: Murata Manufacturing Co., Ltd.
What kind of company: A Japanese multinational electronics components maker that designs, manufactures, and sells passive components (e.g., ferrite beads, ceramic capacitors, filters) used in consumer, automotive, and industrial electronics.
What kind of company: A Japanese multinational electronics components maker that designs, manufactures, and sells passive components (e.g., ferrite beads, ceramic capacitors, filters) used in consumer, automotive, and industrial electronics.
Application
BLM31KN271SH1L is a ferrite bead (EMI/RFI suppressor) used to attenuate high‑frequency noise. Typical applications:
- In series with DC power rails and regulators on boards (noise suppression for CPUs, memory, and other ICs)
- High‑speed data and communication lines (USB, HDMI, PCIe, LVDS, CAN)
- Consumer electronics (phones, tablets, wearables, audio/video gear)
- Automotive electronics (ECUs, infotainment, sensors)
- Telecom, industrial, and networking equipment
- Medical devices requiring clean power and signals
Place as close as possible to the noise source/entry point.
- In series with DC power rails and regulators on boards (noise suppression for CPUs, memory, and other ICs)
- High‑speed data and communication lines (USB, HDMI, PCIe, LVDS, CAN)
- Consumer electronics (phones, tablets, wearables, audio/video gear)
- Automotive electronics (ECUs, infotainment, sensors)
- Telecom, industrial, and networking equipment
- Medical devices requiring clean power and signals
Place as close as possible to the noise source/entry point.
Package
It’s a surface‑mount 2‑terminal ferrite bead, in the BLM31 family: a 3.2 × 2.5 mm (3225 metric) SMD package.
