7M3-104

This series is no longer recommended for new designs. We will continue to manufacture and support existing designs indefinitely. This product will not be available in an RoHS-compliant version. Core and solder contain lead.

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Specifications

Electrical specifications at 25°C.

Series 7M2 – Shielded with plastic sleeve

Part number	Inductance (µH)			Test frequency (MHz)	Q min at L nom	DCR (Ω) 1
Part number	min 2	nom	max	Test frequency (MHz)	Q min at L nom	DCR (Ω) 1
7M2-104	85	100	115	2.5	20	24.3

Notes

DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
L min is achieved at maximum extension of the core toward PC board. Complete tuning range is reached within the boundaries of the coil form.

Termination:

Pins: Tin-lead over tin over copper over iron
Shield can tabs: Tin-silver over nickel over brass

Environmental

Ambient temperature range:

-40°C to +85°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Typical Q at L nominal

Series 7M2

Typical Q at L nominal

Series 7M3

Self Resonant Frequency

Schematics

Physical characteristics

General specification

Weight:

7M2 series: 1.00 – 1.06 g; 7M3 series: 1.30 – 1.34 g

Soldering/Washing

Resistance to soldering heat:

Wave solder only. Recommended maximum board surface temperature of 168°C (334°F) for no more than three seconds. Pre-heating is recommended to minimize time over the solder nozzle.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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7M3-104

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Specifications

Series 7M2 – Shielded with plastic sleeve

Termination:

Performance curves

Typical Q at L nominal

Typical Q at L nominal

Self Resonant Frequency

Schematics

Physical characteristics

General specification

Soldering/Washing

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