BLM18KG300WH1D Equivalent & Substitute Parts

Part Overview

The BLM18KG300WH1D is a power line ferrite bead manufactured by Murata Electronics, designed for electromagnetic interference (EMI) suppression in surface mount applications. This 0603 (1608 Metric) component operates at 30 Ohms impedance @ 100 MHz with a maximum current rating of 1.85A and is rated for automotive applications (AEC-Q200). The part is currently active in production and widely available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for power line ferrite bead applications.

Substiute Parts

BLM18KG300WH1D

Murata ElectronicsIn Stock: 938BLM18KG300WH1D Datasheet

Current PartRFQ

BLM18KG260WH1D

Murata ElectronicsIn Stock: 2327BLM18KG260WH1D Datasheet

Parametric EquivalentRFQ

BLM18KG300JH1D

Murata ElectronicsIn Stock: 7984BLM18KG300JH1D Datasheet

Parametric EquivalentRFQ

BLM18PG330SH1D

Murata ElectronicsIn Stock: 6476BLM18PG330SH1D Datasheet

Parametric EquivalentRFQ

ABPY00160808300Y00

Pulse ElectronicsIn Stock: 53093ABPY00160808300Y00 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BLM18KG300WH1D are qualified based on the following criteria:

Primary Substitution Criteria:

• Package compatibility: 0603 (1608 Metric) surface mount form factor
• Filter type: Power line, single line ferrite bead
• Impedance range: 26–33 Ohms @ 100 MHz (within acceptable EMI suppression tolerance)
• Current rating: Minimum 1.85A (equal or greater capacity)
• DC resistance: Acceptable range for thermal and insertion loss performance
• Automotive compliance: AEC-Q200 rating maintained
• RoHS3 compliance and REACH unaffected status

Substitutes are grouped into two categories: direct impedance matches (30 Ohms) and near-equivalent impedance alternatives (26–33 Ohms) that maintain functional compatibility for power line EMI filtering applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Impedance Match (30 Ohms @ 100 MHz):

BLM18KG300JH1D offers identical impedance to the primary part with superior current handling (3.3A vs. 1.85A) and significantly lower DC resistance (10 mOhm vs. 35 mOhm). This part is suitable for applications requiring higher current capacity or lower insertion loss. Operating temperature range and AEC-Q200 compliance are maintained.

ABPY00160808300Y00 (Pulse Electronics) provides 30 Ohms impedance with 3A current rating and 30 mOhm DC resistance. This cross-manufacturer substitute maintains AEC-Q200 compliance and automotive qualification. Operating temperature is limited to -55°C ~ 125°C.

Near-Equivalent Impedance (26–33 Ohms @ 100 MHz):

BLM18KG260WH1D operates at 26 Ohms impedance with improved current capacity (2A) and lower DC resistance (32 mOhm). This part is suitable for applications where slightly reduced impedance is acceptable and higher current handling is beneficial.

BLM18PG330SH1D provides 33 Ohms impedance with 3A current rating and 25 mOhm DC resistance. Operating temperature is limited to -55°C ~ 125°C. Packaging is available as Cut Tape (CT) & Digi-Reel® rather than standard Tape & Reel.

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can BLM18KG300JH1D replace BLM18KG300WH1D in all applications?

A: Yes, for applications within the specified current and temperature ranges. BLM18KG300JH1D provides identical impedance (30 Ohms @ 100 MHz) with superior current capacity (3.3A vs. 1.85A) and lower DC resistance (10 mOhm vs. 35 mOhm). Both parts are AEC-Q200 rated and operate across -55°C ~ 150°C.

Q: What is the impedance tolerance for substitute selection?

A: Substitute parts are qualified within the 26–33 Ohms range @ 100 MHz. This range maintains functional EMI suppression performance for power line ferrite bead applications. Selection depends on specific circuit requirements for attenuation and insertion loss.

Q: Are there packaging differences between substitutes?

A: Most substitutes are supplied in Tape & Reel (TR) format. BLM18PG330SH1D is available as Cut Tape (CT) & Digi-Reel®. All parts use identical 0603 (1608 Metric) surface mount package dimensions and mounting type.

Q: What is the significance of DC resistance differences?

A: DC resistance affects insertion loss and thermal performance. Lower DC resistance (10–25 mOhm) reduces power dissipation and heat generation. Higher DC resistance (30–35 mOhm) may increase insertion loss but does not affect impedance performance at 100 MHz.

Q: Can ABPY00160808300Y00 be used in automotive applications?

A: Yes. ABPY00160808300Y00 is AEC-Q200 rated and automotive qualified. Operating temperature is limited to -55°C ~ 125°C compared to the primary part's -55°C ~ 150°C range.

Q: What is the difference between BLM18KG and BLM18PG series?

A: Both are Murata EMIFIL® power line ferrite beads in 0603 package. BLM18PG330SH1D operates at 33 Ohms impedance with maximum operating temperature of 125°C, while BLM18KG variants support up to 150°C.