BLM21PG221SN1B

Part: BLM21_ □ N Series — MURATA Type: Chip Ferrite Bead Description: Chip ferrite bead series with impedance values ranging from 5 Ω to 2700 Ω at 100 MHz, and rated currents up to 8500 mA, designed for noise suppression.

Operating Conditions:

• Operating temperature: -55 to +125 °C (Storage)
• Measuring temperature: 15 to 35 °C (Ordinary), 20±2 °C (In case of doubt)
• Measuring humidity: 25 to 85 %RH (Ordinary), 60 to 70 %RH (In case of doubt)

Absolute Maximum Ratings:

• Max junction/storage temperature: +125 °C

Key Specs:

• Impedance range (at 100MHz): 5 Ω to 2700 Ω
• Impedance tolerance: ±10 Ω to ±25% (depending on part number)
• Rated Current (at 85°C): Up to 8500 mA (BLM21SN300SN1D/B)
• Rated Current (at 125°C): Up to 6000 mA (BLM21SN300SN1D/B)
• DC Resistance (Initial Values): 0.004 Ω to 0.8 Ω max.
• DC Resistance (Values After Testing): 0.005 Ω to 0.9 Ω max.
• Unit Mass (Typical value): 0.010g (0.014g for 21BD222SN1 □ /21BD272SN1 □ )
• Dimensions (L×W): 2.0±0.2 mm × 1.25±0.2 mm

Features:

• Resistance element becomes dominant at high frequencies for noise suppression.
• Designed for solder mounting (reflow and flow soldering compatible).
• Available in tape and reel packaging (paper tape or plastic tape) or bulk.

Applications:

• Aircraft equipment (requires prior contact)
• Aerospace equipment (requires prior contact)
• Undersea equipment (requires prior contact)
• Power plant control equipment (requires prior contact)
• Medical equipment (requires prior contact)
• Disaster prevention / crime prevention equipment (requires prior contact)
• Traffic signal equipment (requires prior contact)
• Transportation equipment (trains, ships, etc.) (requires prior contact)
• Data-processing equipment (requires prior contact)

Package:

• Chip (Dimensions: 2.0±0.2 mm × 1.25±0.2 mm)

Please contact us before using our products for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party's life, body or property.

• (1) Aircraft equipment (6) Disaster prevention / crime prevention equipment
• (2) Aerospace equipment (7) Traffic signal equipment
• (3) Undersea equipment (8) Transportation equipment (trains,ships,etc.)
• (4) Power plant control equipment (9) Data-processing equipment
• (5) Medical equipment (10) Applications of similar complexity and /or reliability requirements to the applications listed in the above

• Standard land dimensions
• < BLM21 series(except BLM21PG/BLM21S type) >
• < For BLM21PG/BLM21S type >

Total page 8/16

(in mm)

*The excessive heat by land pads may cause deterioration at joint of products with substrate.