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Texas Instruments LMK61E0-155M52SIAR — Clock & Timing ICs

Texas Instruments LMK61E0-155M52SIAR Clock Oscillator

MPNLMK61E0-155M52SIAR
Active

Texas Instruments LMK61E0-155M52SIAR Clock Oscillator, 155.52 MHz, 3.135V~3.465V, 162 mA, -40°C~85°C, 6-SMD Module, Tape & Reel.

$5.9535Ref. price · indicative, final on quote
Texas Instruments LMK61E0-155M52SIAR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LMK61E0-155M52SIAR specifications
ParameterValue
TypeClock Oscillator
MountingSurface Mount
Supply voltage3.135V ~ 3.465V
Current - supply162 mA
Frequency155.52MHz
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Case6-SMD Module

Product details

What this 155.52 MHz oscillator brings to the clock tree

The Texas Instruments LMK61E0-155M52SIAR is a clock oscillator delivering a fixed 155.52 MHz output — the standard reference frequency for Synchronous Ethernet (SyncE) and SONET/SDH line cards. Housed in a 6-QFM (7x5) package, it operates from a 3.135 V to 3.465 V supply rail and draws 162 mA typical.

Supplied in Tape & Reel (TR) packaging, consistent with high-volume pick-and-place assembly.

The 6-QFM (7x5) surface-mount module has a 7 mm × 5 mm footprint — a compact outline that fits into the same land pattern as standard 7×5 mm clock oscillators, easing layout reuse.

Frequently asked questions

How can I order the LMK61E0-155M52SIAR or check stock?

The LMK61E0-155M52SIAR is an active Texas Instruments product.

What is the LMK61E0-155M52SIAR used for?

It is a 155.52 MHz clock oscillator — the standard reference for Synchronous Ethernet (SyncE), SONET/SDH, and other telecom/data-communications line-card timing.

Is there a pin-compatible alternative to the LMK61E0-155M52SIAR?

The LMK61 family (base product number LMK61) shares the same 6-QFM package and supply range, but output frequencies differ — confirm the exact frequency required for the BOM position before substituting.