BLM31KN471SN1L Datasheet BLM31KN102SN1L, BLM31KN471SN1L, BLM31KN271SN1L | P1-P3

Spec. No. JENF243A-0006W-01 P.1/9

MURATA MFG.CO., LTD.

Reference Only

Chip Ferrite Bead BLM31□□□□□SN1□ Reference Specification

1. Scope

This reference specification applies to Chip Ferrite Bead BLM31_SN Series.

2. Part Numbering

(ex.) BL M 31 PG 601 S N 1 L

(1) (2) (3) (4) (5) (6) (7) (8) (9)

(1)Product ID (6)Performance

(2)Type (7)Category

(3)Dimension (L×Ｗ)

(8)Numbers of Circuit

(4)Characteristics (9)Packaging (L:Taping / B:Bulk)

(5)Typical Impedance at 100MHz

3. Rating

Customer

Part Number

MURATA

Part Number

Impedance

(Ω)

(at 100MHz, Under Standard

Testing Condition)

Rated

Current

(mA)

(Note1)

Resistance

(Ω) max.

Remark

at 85 at 125

Initial

Values

After

Testing

BLM31PG330SN1L

33±25% 6000 3500 0.009 0.018

For DC power line

BLM31PG330SN1B

BLM31PG500SN1L

35 min. 3500 2300 0.015 0.03

BLM31PG500SN1B

BLM31PG121SN1L

120±25% 3500 2000 0.02 0.04

BLM31PG121SN1B

BLM31PG391SN1L

390±25% 2000 1250 0.05 0.10

BLM31PG391SN1B

BLM31PG601SN1L

600±25% 1500 1000 0.08 0.16

BLM31PG601SN1B

BLM31SN500SN1L

50±12.5Ω 12000 10000 0.0016 0.0021

BLM31SN500SN1B

• Operating Temperature: -55°C to +125°C • Storage Temperature: -55°C to +125°C

（Note1）Rated Current is derated as right figure

depending on the operating temperature.

4. Style and Dimensions

■ Equivalent Circuit

■ Unit Mass (Typical value)

Operating Temperature (°C)

85 125

Rated Current (A)

Describe the Rated current as x[A]

in case of more than 1A.

85℃

125℃

Resistance element becomes

dominant at high frequencies.

()

(in mm)

0.025 g

:電極

3.2±0.2 1.6±0.2

0.7±0.3

1.1±0.2

Spec. No. JENF243A-0006W-01 P.2/9

MURATA MFG.CO., LTD.

Reference Only

5.Marking

No marking.

6. Standard Testing Conditions

< Unless otherwise specified > < In case of doubt >

Temperature : Ordinary Temp. (15 °C to 35 °C ) Temperature : 20°C±2 °C

Humidity : Ordinary Humidity (25%(RH) to 85%(RH)) Humidity : 60%(RH) to 70%(RH)

Atmospheric pressure : 86kPa to 106kPa

7. Specifications

7-1. Electrical Performance

No. Item Specification Test Method

7-1-1 Impedance Meet item 3. Measuring Frequency : 100MHz±1MHz

Measuring Equipment :

KEYSIGHT4291A or the equivalent

Test Fixture : KEYSIGHT16192A or the equivalent

7-1-2 DC Resistance Meet item 3.

Measuring Equipment : Digital multi meter

*Except resistance of the Substrate and Wire

7-2. Mechanical Performance

No. Item Specification Test Method

7-2-1 Appearance and

Dimensions

Meet item 4. Visual Inspection and measured with Slide Calipers.

7-2-2 Bonding

Strength

Meet Table 1.

Table 1

It shall be soldered on the substrate.

Applying Force(F) : 9.8N

Applying Time : 5s±1s

Applied direction:Parallel to substrate

7-2-3 Bending

Strength

It shall be soldered on the substrate.

Substrate: Glass-epoxy 100mm×40mm×1.6mm

Deflection: 1.0mm

Speed of Applying Force : 0.5mm/s

Keeping Time : 30s

Appearance No damage

Impedance

Change

(at 100MHz)

Within ±30%

Resistance

Meet item 3.

45mm

R340

Deflection

45mm

Product

Pressure jig

R0.5

Ｆ

Substrate

Ｆ

Side view

Spec. No. JENF243A-0006W-01 P.3/9

MURATA MFG.CO., LTD.

Reference Only

No. Item Specification Test Method

7-2-4 Vibration Meet Table 1. It shall be soldered on the substrate.

Oscillation Frequency : 10Hz to 55Hz to 10Hz for 1 min

Total Amplitude : 1.5mm

Testing Time : A period of 2 hours in each of 3 mutually

perpendicular directions. (Total 6 h)

7-2-5 Resistance

to Soldering

Heat

Meet Table 2.

Table 2

Pre-Heating : 150°C±10°C, 60s～90s

Solder : Sn-3.0Ag-0.5Cu

Solder Temperature : 270°C±5°C

Immersion Time : 10s±0.5s

Immersion and emersion rates : 25mm/s

Then measured after exposure in the room condition

for 48h±4h.

7-2-6 Drop Products shall be no failure after

tested.

It shall be dropped on concrete or steel board.

Method : free fall

Height : 75cm

Attitude from which the product is dropped : 3 direction

The number of times : 3 times for each direction

(Total 9 times)

7-2-7 Solderability The electrodes shall be at least

95% covered with new solder

coating.

Flux : Ethanol solution of rosin,25(wt)%

Pre-Heating : 150°C±10°C, 60s～90s

Solder : Sn-3.0Ag-0.5Cu

Solder Temperature : 240°C±5°C

Immersion Time : 4s±1s

Immersion and emersion rates : 25mm/s

7-3. Environmental Performance

It shall be soldered on the substrate.

No. Item Specification Test Method

7-3-1 Temperature

Cycle

Meet Table 2. 1 cycle:

1 step: -55 °C(+0 °C,-3 °C) / 30min±3min

2 step: Ordinary temp. / 10min to 15min

3 step: +125 °C(+3 °C,-0 °C) / 30min±3min

4 step: Ordinary temp. / 10min to 15min

Total of 100 cycles

Then measured after exposure in the room condition

for 48h±4h.

7-3-2 Humidity Temperature : 40°C±2°C

Humidity : 90%(RH) to 95%(RH)

Time : 1000h(+48h,-0h)

Then measured after exposure in the room condition

for 48h±4h.

7-3-3 Heat Life Temperature : 85°C±3°C

Applying Current : Rated Current

Time : 1000h(+48h,-0h)

Then measured after exposure in the room condition

for 48h±4h.

7-3-4 Cold Resistance Temperature : -55±2°C

Time : 1000h(+48h,-0h)

Then measured after exposure in the room condition

for 48h±4h.

Appearance No damage

Impedance

Change

(at 100MHz)

Within ±30%

(for

BLM31SN

within ±50%)

Resistance

Meet item 3.

P1-P3 P4-P6 P7-P9

BLM31KN471SN1L

Mfr. #:

Buy BLM31KN471SN1L

Manufacturer:

Murata Electronics

Description:

Ferrite Beads 1206 470ohms 4A General Purpose

Lifecycle:

New from this manufacturer.

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BLM31KN471SN1L

BLM31KN471SN1L

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