Product Overview
Murata 4.00 MHz CERALOCK 3-Pin Radial Clock Element with Internal Capacitance
Condition
Unused new old stock. Leads are clean and factory-formed with outer crimps for through-hole PCB insertion. Markings legible: 400G with Murata stylized M emblem. Sourced from surplus inventory.
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Product Overview
Murata CSTLS4M00G53Z-B0 is a 4.00 MHz radial lead ceramic resonator from the CERALOCK CSTLS series. It incorporates built-in 15 pF load capacitors across its three terminals, eliminating the need for external load capacitance in standard oscillator networks. The molded blue radial SIP package features a 2.5 mm lead pitch with factory-formed outer pins designed for self-retaining through-hole mounting on printed circuit boards.
Key Features
- Nominal oscillation frequency: 4.000 MHz
- Built-in load capacitance: 15 pF per line
- Frequency tolerance: ±0.50%
- Resonant impedance: 30 ohms maximum
- Operating temperature range: -20°C to +80°C
- Pin configuration: 3-terminal radial SIP (Input, Ground, Output)
- 2.5 mm terminal spacing with crimped outer lead form
Applications
- Clock generation for 8-bit microcontrollers, legacy PIC microchips, and AVR developmental circuits
- Breadboard prototyping where on-chip oscillator pins need simple clock signals without discrete capacitors
- Retrocomputing repairs and vintage microcontroller boards requiring a 4 MHz reference
Frequently Asked Questions
Does this ceramic resonator require external capacitors?
No. The CSTLS series features integrated 15 pF load capacitors connected internally to the central ground pin, allowing direct connection to MCU oscillator pins without external loading components.
What is the pinout configuration for this 3-pin package?
The center pin is the common ground connection. The two outer leads connect directly to the oscillator input (OSC1/XTALIN) and oscillator output (OSC2/XTALOUT) pins of your IC or microcontroller.
How do the formed outer leads fit into a PCB or prototyping board?
The outer crimps give the pins a snap-in hold in standard 0.1-inch (2.54 mm) perforated grid boards or production PCB footprints, holding the resonator slightly elevated above the board surface.
Three pins, two built-in capacitors, and a steady 4 MHz beat. Plug it across your oscillator pins and your micro has its heartbeat.
