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Product Detailed Parameters
- Description：12.35 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：12.35 MHz
- Function：Standby (Power Down)
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：22mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-12.350-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 12.35 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a 1.8V supply voltage with an integrated standby or power-down mode to minimize energy consumption during idle periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.
Feature Summary
- LVCMOS output logic interface
- Integrated standby power-down mode
- Compact 4-SMD no-lead surface mount package
Applications
- Portable electronic devices requiring low power consumption
- Communication equipment utilizing LVCMOS interfaces
- Embedded systems with strict size constraints
Procurement Notes
Verify the specific operating temperature range and frequency stability specifications against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout requirements to guarantee proper soldering and mechanical stability.
Selection Notes
Select this component when a precise 12.35 MHz clock signal is required with minimal power usage. The LVCMOS output ensures compatibility with standard digital logic families. The standby feature makes it ideal for battery-operated applications where power efficiency is critical. Verify that the operating temperature range meets the environmental conditions of the intended application.
Part Context
This part belongs to the 18QHTF21 series of oscillators from Mercury Electronics Ind. Co., Ltd. The series offers various frequency options within a standardized small outline package. The 'PD' suffix typically indicates the inclusion of a power-down control function, allowing for active management of power states in dynamic systems.
Replacement Considerations
Direct substitutes include other 12.35 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation and standby capabilities. Ensure replacement parts match the pinout configuration and electrical characteristics precisely.
