LMMGA201208T121RG Equivalent & Substitute Parts

Part Overview

The LMMGA201208T121RG is a power line ferrite bead manufactured by Taiyo Yuden, designed for electromagnetic interference (EMI) suppression in single-line applications. This component operates at 120 Ohms impedance at 100 MHz with a maximum current rating of 2.5A and is housed in a 0805 (2012 Metric) surface mount package. The part maintains Active product status and is ROHS3 compliant.

Substitute parts become necessary when the primary part experiences supply constraints, when design revisions require alternative sourcing options, or when procurement strategies benefit from multiple qualified suppliers. The parts listed below maintain identical electrical and mechanical specifications, ensuring direct compatibility in circuit applications.

Substiute Parts

LMMGA201208T121RG

Taiyo YudenIn Stock: 887LMMGA201208T121RG Datasheet

Current PartRFQ

FBMH2012HM121-T

Taiyo YudenIn Stock: 170249FBMH2012HM121-T Datasheet

Parametric EquivalentRFQ

LSMGA201208T121RG

Taiyo YudenIn Stock: 4549LSMGA201208T121RG Datasheet

Parametric EquivalentRFQ

Z0805C121BPWZT

KEMETIn Stock: 2308Z0805C121BPWZT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMMGA201208T121RG is determined by strict parametric matching across the following criteria:

• Impedance specification: 120 Ohms @ 100 MHz
• Current rating: 2.5A maximum
• DC resistance: 32mOhm maximum
• Package type: 0805 (2012 Metric) surface mount
• Operating temperature range: -40°C to 125°C
• Filter classification: Power line ferrite bead, single line
• Compliance: ROHS3 compliant

All substitute parts listed below meet these exact specifications and are therefore electrically and mechanically interchangeable in applications designed for the LMMGA201208T121RG.

Parameter Comparison

Engineering Selection Recommendations

LSMGA201208T121RG (Taiyo Yuden, LSMG Series) is the preferred substitute for new designs and ongoing production. This part maintains Active product status, identical electrical specifications, and ROHS3 compliance. It is available in Tape & Reel packaging and represents the most current alternative within the Taiyo Yuden product line.

FBMH2012HM121-T (Taiyo Yuden, FB Series) is parametrically equivalent but carries a "Not For New Designs" status. This part is suitable only for legacy system maintenance or existing production runs where design continuity is required. Inventory availability is significantly higher than the primary part.

Z0805C121BPWZT (KEMET, Z-PWZ Series) is electrically and mechanically compatible but is classified as Obsolete. This part should be used only when existing inventory must be consumed or when cross-manufacturer qualification has been completed. Packaging is supplied as Cut Tape rather than Tape & Reel.

Frequently Asked Questions (FAQ)

Q: Can LSMGA201208T121RG be used as a direct replacement for LMMGA201208T121RG?

A: Yes. Both parts share identical impedance (120 Ohms @ 100 MHz), current rating (2.5A), DC resistance (32mOhm), package type (0805 2012 Metric), and operating temperature range (-40°C to 125°C). They are electrically and mechanically interchangeable.

Q: Why is FBMH2012HM121-T marked "Not For New Designs"?

A: This designation indicates the part is in a mature or transitional phase of its product lifecycle. While it meets all electrical and mechanical requirements, Taiyo Yuden recommends using LSMGA201208T121RG for new circuit designs. FBMH2012HM121-T remains suitable for sustaining production of existing designs.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape wound on a reel, suitable for automated pick-and-place assembly. Cut Tape is supplied as individual segments of carrier tape, typically used for manual assembly or lower-volume applications. Both formats contain the same component; packaging choice depends on assembly process requirements.

Q: Is Z0805C121BPWZT still available for new projects?

A: No. Z0805C121BPWZT is classified as Obsolete. While parametrically equivalent, KEMET no longer actively produces this part. Use LSMGA201208T121RG or FBMH2012HM121-T for new designs. Z0805C121BPWZT should be used only to consume existing inventory.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LMMGA201208T121RG, FBMH2012HM121-T, LSMGA201208T121RG, and Z0805C121BPWZT are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Can these parts be used interchangeably in the same PCB assembly?

A: Yes, provided the circuit design does not impose additional constraints beyond the specified electrical and mechanical parameters. All substitute parts maintain the same impedance, current handling, thermal characteristics, and physical dimensions as the primary part.