ZTB400P

Overview

The ZTB400P is a ceramic resonator manufactured by ECS Inc., designed for frequency control applications. It operates at a nominal frequency of 400 kHz with a tolerance of ±0.3%. The component features a radial, box-style package with two leads spaced at a 5.00 mm pitch. Physical dimensions are specified as 0.311 inches in length and 0.142 inches in width, equivalent to 7.90 mm by 3.60 mm. It supports through-hole mounting and functions within a temperature range of -20°C to +80°C.

Feature Summary

• Utilizes ceramic technology for stable oscillation at low frequencies
• Provides precise frequency control with ±0.3% tolerance
• Designed for reliable performance in electronic circuits

Applications

• Frequency control in electronic circuits
• Low-frequency oscillator applications
• Timing reference components

Procurement Notes

Verify the obsolete status of this component before procurement, as it is no longer manufactured by ECS Inc. Confirm availability through secondary market distributors if immediate supply is required. Ensure that the through-hole package dimensions and lead pitch match the target PCB layout. Check for RoHS compliance status if environmental regulations apply to the final assembly. Validate that the operating temperature range meets the specific environmental requirements of the end application.

Selection Notes

Select this component when a 400 kHz ceramic resonator is required for through-hole assembly. Consider the ±0.3% tolerance for applications needing moderate frequency accuracy. Evaluate the -20°C to +80°C operating range against environmental conditions. Compare physical dimensions of 7.90 mm x 3.60 mm with available board space. Note that this is a legacy part; assess long-term supply chain stability and potential need for redesign due to obsolescence.

Part Context

The ZTB400P belongs to the ZTB series of ceramic resonators from ECS Inc., which are engineered for low-frequency applications. This series typically offers a cost-effective alternative to quartz crystals for timing purposes. The product line focuses on providing reliable frequency generation in consumer electronics and industrial equipment where high precision is not critical. As an obsolete item, it represents older design generations using standard ceramic materials.

Replacement Considerations

No public confirmed substitute part numbers are available. Due to the obsolete status, direct replacements may require evaluating other manufacturers' 400 kHz ceramic resonators with compatible package dimensions and electrical characteristics.