Z0603C330APMST Equivalent & Substitute Parts

Part Overview

The Z0603C330APMST is a 33 Ohm ferrite bead manufactured by KEMET, designed for power line filtering applications in 0603 (1608 Metric) surface mount packages. This component operates at 100 MHz impedance with a maximum current rating of 3A and DC resistance of 25mOhm. The part is classified as obsolete, necessitating identification of active equivalent components that maintain identical electrical and mechanical specifications for continued system integration and procurement.

Substiute Parts

Z0603C330APMST

KEMETIn Stock: 1158Z0603C330APMST Datasheet

Current PartRFQ

BLM18PG330SN1D

Murata ElectronicsIn Stock: 19209BLM18PG330SN1D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Z0603C330APMST is determined by strict equivalence across the following critical parameters:

• Impedance Value and Frequency: 33 Ohms @ 100 MHz (electrical performance requirement)
• Current Rating: 3A maximum (thermal and power handling capability)
• DC Resistance: 25mOhm maximum (insertion loss specification)
• Package Footprint: 0603 (1608 Metric) surface mount (PCB layout compatibility)
• Filter Classification: Power Line, single-line configuration (application category)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected (environmental and legal requirements)

The substitute part BLM18PG330SN1D from Murata Electronics satisfies all these parameters identically, with the exception of an extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 85°C for the original part). This extended range represents a superset capability and does not restrict substitution.

Parameter Comparison

Engineering Selection Recommendations

The BLM18PG330SN1D from Murata Electronics is a direct functional equivalent to the Z0603C330APMST. Selection of the Murata substitute is supported by the following engineering factors:

• Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity, whereas the original KEMET part is obsolete.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and legal requirements identically.
• Electrical Equivalence: All critical electrical parameters—impedance, current rating, and DC resistance—are identical across both components.
• Mechanical Compatibility: Package dimensions, mounting type, and form factor are identical, enabling direct PCB layout substitution without redesign.
• Temperature Performance: The extended operating temperature range of the Murata part (-55°C ~ 125°C) provides enhanced thermal margin compared to the original specification (-55°C ~ 85°C), representing improved capability for demanding thermal environments.

Frequently Asked Questions (FAQ)

Q: Can BLM18PG330SN1D be used as a direct replacement for Z0603C330APMST on existing PCBs?

A: Yes. Both components share identical package dimensions (0603/1608 Metric), mounting type (surface mount), and footprint specifications. No PCB layout modifications are required.

Q: Are the electrical characteristics identical between these two parts?

A: Yes. Impedance (33 Ohms @ 100 MHz), current rating (3A), and DC resistance (25mOhm) are identical. Both components function identically in power line filtering applications.

Q: What is the difference in operating temperature range?

A: The Z0603C330APMST operates from -55°C to 85°C, while the BLM18PG330SN1D operates from -55°C to 125°C. The Murata substitute provides an extended upper temperature limit, which does not restrict substitution in applications requiring the original temperature range.

Q: Are both parts RoHS compliant?

A: Yes. Both Z0603C330APMST and BLM18PG330SN1D are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: Why is the original KEMET part listed as obsolete?

A: The Z0603C330APMST is classified as obsolete by KEMET, indicating discontinued production. The Murata BLM18PG330SN1D remains in active production and is the recommended substitute for new designs and ongoing procurement.

Q: Are there any packaging differences between these parts?

A: Both parts are available in standard surface mount packaging. The BLM18PG330SN1D is offered in Cut Tape (CT) and Digi-Reel® formats, providing standard distribution options for manufacturing environments.

Q: What is the moisture sensitivity level for both parts?

A: Both components have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.