Question 1

What are the key features of FCI 77709-129LF?

EZKEY · Accepted Answer

This product belongs to the Board to Board & Mezzanine Connectors category and ships in standard packaging. It features high reliability, stable performance and low power consumption. Key parameters include wide operating range, low loss, and over-temperature protection, suitable for industrial applications. Manufactured by FCI with full traceability.

Question 2

What are the main application scenarios for 77709-129LF?

EZKEY · Accepted Answer

Typical applications include power management, industrial control. Additionally, it is widely used in automotive electronics, telecom infrastructure, medical devices, and consumer electronics as a critical circuit component, improving system integration and energy efficiency.

Question 3

How does 77709-129LF work?

EZKEY · Accepted Answer

This device follows established Board to Board & Mezzanine Connectors design principles. Core functional stages include input handling, signal and power processing, and protection logic, ensuring stable operation under varying conditions. Refer to the datasheet for the detailed characteristics and application guidance.

Question 4

What is the technical performance of 77709-129LF?

EZKEY · Accepted Answer

Performance highlights: stable characteristics across the operating temperature range, low loss, and long service life. Reliable contact and shock resistance, with protection against over-current and over-voltage where applicable. Meets industrial and automotive reliability standards where the series qualifies.

Question 5

What is the current market demand for 77709-129LF?

EZKEY · Accepted Answer

The global Board to Board & Mezzanine Connectors market is growing at ~6-8% CAGR, with particularly strong demand in power management. FCI 77709-129LF is a mainstream model with stable stock and a typical lead time of 2-4 weeks. Driven by new energy and smart electronics trends, inquiries for this model are steadily increasing, indicating a positive long-term outlook.

Question 6

What are the technical characteristics of 77709-129LF?

EZKEY · Accepted Answer

Three main technical features: 1) High reliability – stable performance over the rated life; 2) Low-loss design – reduced energy loss in operation; 3) Wide adaptability – compatible with various operating conditions. Additionally, FCI provides full technical support and reference designs.

Brand	Amphenol FCI
Contact Material	Copper Alloy
Contact Plating	Tin
Data Tier	Family Level
Mounting Type	SMD
Operating Temperature	-55 to +105 C
Pitch	0.5 mm / 1.0 mm
Product Type	Board-to-Board Connector
RoHS	Compliant

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77709-129LF | FCI BERGSTIK

Product Details

PDF Datasheet

Technical Docs

Technical Parameters

77709-129LF Application and Selection Guide

77709-129LF Model and Manufacturer Information

77709-129LF Product Parameters and Description

77709-129LF Application and Selection Reference

Recommended Part Numbers for 77709-129LF