ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：AUDIO XFMR 200K / 1K CHAS MNT
- Series：143
- Mfr：Hammond Manufacturing
- Package：Bulk
- Mounting Type：Chassis Mount
- Size / Dimension：1.000" L x 0.690" W (25.40mm x 17.53mm)
- Height - Seated (Max)：0.690" (17.53mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：200k
- Impedance - Secondary (Ohms)：1k
- DC Resistance (DCR) - Primary：4.5kOhm
- DC Resistance (DCR) - Secondary：30Ohm
- Transformer Type：Economical Open Type
- Frequency Range：150Hz ~ 15kHz
- Frequency Response：±1dB
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：25mW
- Operating Temperature：-
- Approval Agency：-
Download product information
Overview
The Hammond Manufacturing 143D is an audio input transformer designed for signal coupling applications. It features a primary resistance of 200 kOhms and a secondary resistance of 1 kOhm. The device supports a maximum power handling capacity of 25 mW. Its operational frequency range spans from 150 Hz to 15 kHz, ensuring effective performance within standard audio bandwidths.
Feature Summary
- Provides electrical isolation between circuit stages via magnetic coupling
- Designed specifically for low-power audio signal input applications
- Constructed with defined impedance ratios for signal matching
Applications
- Audio equipment input stage coupling
- Signal transformation in low-power electronic circuits
- Impedance matching between audio sources and amplifiers
Procurement Notes
Verify the specific datasheet version to confirm pinout configuration and mounting style before integration. Ensure that the operating environment remains within the specified thermal limits. Cross-reference the manufacturer's latest documentation to validate compliance with current safety standards and RoHS directives applicable to your region.
Selection Notes
Select this component when a high-impedance primary side is required to interface with high-output source devices. The 1 kOhm secondary impedance must match the input requirements of the subsequent amplifier or processing stage. Consider the 25 mW power limit to prevent saturation or distortion during peak signal conditions.
Part Context
This component belongs to Hammond Manufacturing's line of audio and signal transformers. These units are engineered for reliable signal transfer in consumer and industrial audio systems. The 143D model serves as a specialized solution for input coupling where specific impedance transformation ratios are critical for optimal signal integrity.
Replacement Considerations
No public substitute part numbers are confirmed in the provided documentation. Verify compatibility with any alternative components by matching primary and secondary resistance values, frequency response ranges, and power handling capabilities.
