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Specifications
Current Rating:
3.5A
Number of Circuits:
1
DC Resistance(DCR):
20mΩ
Tolerance:
±25%
Impedance @ Frequency:
120Ω@100MHz
Mfr. Part #:
BLM31PG121SN1L
Package:
1206
Key Attributes
Model Number:
BLM31PG121SN1L
Product Description
Chip Ferrite Bead BLM31SN1
The BLM31_SN Series Chip Ferrite Bead is designed for effective noise suppression in DC power lines. It offers high impedance at 100MHz, making it suitable for filtering out unwanted high-frequency noise. The product is available in various impedance ratings and current handling capabilities to suit different application needs.
Product Attributes
- Brand: MURATA
- Origin: Japan (implied by MURATA MFG.CO., LTD.)
- Material: Ferrite
- Certifications: RoHS compliant (indicated by RoHS marking)
Technical Specifications
| MURATA Part Number | Impedance () (at 100MHz) | Rated Current at 85 (mA) | Rated Current at 125 (mA) | DC Resistance () max. | Remark |
| BLM31PG330SN1L | 3325% | 6000 | 3500 | 0.018 | For DC power line |
| BLM31PG330SN1B | 3325% | 6000 | 3500 | 0.018 | For DC power line |
| BLM31PG500SN1L | 35 min. | 3500 | 2300 | 0.03 | For DC power line |
| BLM31PG500SN1B | 35 min. | 3500 | 2300 | 0.03 | For DC power line |
| BLM31PG121SN1L | 12025% | 3500 | 2000 | 0.04 | For DC power line |
| BLM31PG121SN1B | 12025% | 3500 | 2000 | 0.04 | For DC power line |
| BLM31PG391SN1L | 39025% | 2000 | 1250 | 0.10 | For DC power line |
| BLM31PG391SN1B | 39025% | 2000 | 1250 | 0.10 | For DC power line |
| BLM31PG601SN1L | 60025% | 1500 | 1000 | 0.16 | For DC power line |
| BLM31PG601SN1B | 60025% | 1500 | 1000 | 0.16 | For DC power line |
| BLM31SN500SN1L | 5012.5 | 12000 | 10000 | 0.0021 | For DC power line |
| BLM31SN500SN1B | 5012.5 | 12000 | 10000 | 0.0021 | For DC power line |
| BLM31KN121SN1L | 12025% | 6000 | 4000 | 0.011 | For DC power line |
| BLM31KN121SN1B | 12025% | 6000 | 4000 | 0.011 | For DC power line |
| BLM31KN271SN1L | 27025% | 4500 | 3000 | 0.019 | For DC power line |
| BLM31KN271SN1B | 27025% | 4500 | 3000 | 0.019 | For DC power line |
| BLM31KN471SN1L | 47025% | 4000 | 2700 | 0.024 | For DC power line |
| BLM31KN471SN1B | 47025% | 4000 | 2700 | 0.024 | For DC power line |
| BLM31KN601SN1L | 60025% | 2900 | 2000 | 0.045 | For DC power line |
| BLM31KN601SN1B | 60025% | 2900 | 2000 | 0.045 | For DC power line |
| BLM31KN801SN1L | 80025% | 2500 | 1700 | 0.06 | For DC power line |
| BLM31KN801SN1B | 80025% | 2500 | 1700 | 0.06 | For DC power line |
| BLM31KN102SN1L | 100025% | 2000 | 1400 | 0.09 | For DC power line |
| BLM31KN102SN1B | 100025% | 2000 | 1400 | 0.09 | For DC power line |
Dimensions
| Part Series | Dimension "T" (mm) | Width (mm) | Length (mm) | Height (mm) |
| BLM31PG***SN1* | 1.10.2 | 3.2 0.2 | 1.6 0.2 | 0.7 0.3 |
| BLM31SN***SN1* | 1.10.2 | 3.2 0.2 | 1.6 0.2 | 0.7 0.3 |
| BLM31KN***SN1* | 1.60.2 | 3.2 0.2 | 1.6 0.2 | 0.7 0.3 |
Environmental and Mechanical Specifications
| Item | Specification |
| Operating Temperature | -55C to +125C |
| Storage Temperature | -55C to +125C |
| Bonding Strength | Soldered on substrate. Applying Force(F) : 9.8N, Applying Time : 5s1s, Applied direction: Parallel to substrate |
| Bending Strength | Soldered on substrate. Substrate: Glass-epoxy 100mm40mm1.6mm, Deflection: 1.0mm, Speed of Applying Force : 0.5mm/s, Keeping Time : 30s. Appearance: No damage, Impedance Change (at 100MHz): Within 30%, DC Resistance: Meet item 3. |
| Vibration | Soldered on 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) |
| Resistance to Soldering Heat | Soldered on substrate. Pre-Heating : 150C10C, 60s90s. Solder : Sn-3.0Ag-0.5Cu, Solder Temperature : 270C5C, Immersion Time : 10s0.5s. Measured after exposure in room condition for 48h4h. |
| Drop | No failure after tested. Dropped on concrete or steel board. Height : 75cm, Attitude: 3 directions, Number of times: 3 times for each direction (Total 9 times) |
| Solderability | Electrodes shall be at least 95% covered with new solder coating. Flux : Ethanol solution of rosin, 25(wt)%. Pre-Heating : 150C10C, 60s90s. Solder : Sn-3.0Ag-0.5Cu, Solder Temperature : 240C5C, Immersion Time : 4s1s. |
| Temperature Cycle | Soldered on substrate. 1 cycle: -55C (30min) -> Ordinary temp. (10-15min) -> +125C (30min) -> Ordinary temp. (10-15min). Total 100 cycles. Measured after exposure in room condition for 48h4h. Impedance Change (at 100MHz): Within 30% (for BLM31SN,KN within 50%). DC Resistance: Meet item 3. |
| Humidity | Temperature : 40C2C, Humidity : 90%(RH) to 95%(RH), Time : 1000h. Measured after exposure in room condition for 48h4h. |
| Heat Life | Temperature : 85C3C, Applying Current : Rated Current, Time : 1000h. Measured after exposure in room condition for 48h4h. |
| Cold Resistance | Temperature : -552C, Time : 1000h. Measured after exposure in room condition for 48h4h. |
2409292303_muRata-BLM31PG121SN1L_C85841.pdf
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