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ECS Inc. ECS-270-8-36-RWN-TR — Crystals & Oscillators

ECS-270-8-36-RWN-TR 27 MHz Crystal, ECX-2236, 8pF

MPNECS-270-8-36-RWN-TR
Active

ECS Inc. ECX-2236 MHz Crystal, 27 MHz, 8pF load capacitance, ±15ppm tolerance/stability, Surface Mount, 2.50mm x 2.00mm x 0.65mm, -40°C ~ 85°C, 60 Ohm ESR.

$0.6800Ref. price · indicative, final on quote
ECS Inc. ECS-270-8-36-RWN-TR datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ECS-270-8-36-RWN-TR specifications
ParameterValue
TypeMHz Crystal
SeriesECX-2236
MountingSurface Mount
ESR60 Ohms
Frequency27 MHz
Frequency stability±15ppm
Frequency tolerance±15ppm
Operating temperature-40°C ~ 85°C
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
Height - seated0.026\" (0.65mm)
PackageTape & Reel (TR) Cut Tape (CT)
Operating modeFundamental
Case4-SMD, No Lead
Load capacitance8pF

Product details

Load capacitance and ESR — the drive-level pair that matters on the bench

The ECS-270-8-36-RWN-TR: Rated with an 8 pF load capacitance, the crystal expects the MCU or oscillator circuit to present that value across its XTAL pins — a mismatch shifts the actual frequency out of tolerance. The ESR ceiling is 60 Ohms, which sets the maximum drive level the circuit can supply before the crystal risks mechanical degradation; a lower ESR crystal at the same frequency tolerates more drive power from a high-gain oscillator stage.

±15 ppm — what that means inside a timing budget

Frequency tolerance and stability are both ±15 ppm, which stacks directly into the overall timing budget.

Frequently asked questions

What series does the ECS-270-8-36-RWN-TR belong to?

It is part of the ECX-2236 series from ECS Inc., a 2.5 mm by 2.0 mm surface-mount crystal family typically used in wireless modules, microcontrollers, and timing-sensitive consumer and industrial designs.

What is the ECS-270-8-36-RWN-TR used for?

This is a fundamental-mode 27 MHz crystal intended for the clock or reference input of MCUs, wireless SoCs (BLE, Wi-Fi, sub-GHz), and other digital circuits that derive their timing from an external crystal. The 8 pF load capacitance and industrial temperature grade suit it for IoT edge nodes, industrial controls, and embedded modules that operate in unconditioned environments.