AH1684-A Equivalent & Substitute Parts

Part Overview

The AH1684-A is a snap action SPDT switch manufactured by Panasonic Electric Works, designed for chassis mount applications with a 1A rating at 125V AC. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The AH1684-A features a lever actuator with simulated roller, solder lug termination, and is rated for 30,000 electrical cycles with 1,000,000 mechanical cycles.

Key Parameters

Parameter	Value
Circuit Configuration	SPDT
Switch Function	On-Momentary
Current Rating	1A (AC/DC)
Voltage Rating - AC	125V
Voltage Rating - DC	30V
Actuator Type	Lever, Simulated Roller
Mounting Type	Chassis Mount
Termination Style	Solder Lug
Operating Temperature Range	-25°C to 85°C

Substitute Part Grouping Explanation

The LCGGF5T23ECU from C&K qualifies as a functional equivalent based on the following critical parameters:

Circuit Configuration: Both parts are SPDT (Single Pole Double Throw)
Switch Function: Both operate as On-Momentary switches
Current Rating: Both rated at 1A for AC and DC operation
Voltage Ratings: Both rated at 125V AC and 30V DC
Actuator Type: Both feature lever with simulated roller actuation
Mounting Type: Both are chassis mount configurations
Termination Style: Both use solder lug termination
Operating Temperature: Both operate across -25°C to 85°C range

The LCGGF5T23ECU is currently in active production status, addressing the obsolescence of the AH1684-A while maintaining electrical and mechanical compatibility within the specified parameter envelope.

Parameter Comparison

Parameter	AH1684-A (Panasonic)	LCGGF5T23ECU (C&K)
Manufacturer	Panasonic Electric Works	C&K
Product Status	Obsolete	Active
Circuit	SPDT	SPDT
Switch Function	On-Mom	On-Mom
Current Rating	1A (AC/DC)	1A (AC/DC)
Voltage Rating - AC	125V	125V
Voltage Rating - DC	30V	30V
Actuator Type	Lever, Simulated Roller	Lever, Simulated Roller
Mounting Type	Chassis Mount	Chassis Mount
Termination Style	Solder Lug	Solder Lug
Operating Temperature	-25°C to 85°C	-25°C to 85°C
Operating Force	26gf	28gf
Release Force	2.039gf	3.000gf
Operating Position	0.374" (9.5mm)	0.455" (11.6mm)
Pretravel	0.083" (2.1mm)	0.252" (6.4mm)
Differential Travel	0.020" (0.5mm)	0.062" (1.6mm)
Overtravel	0.020" (0.5mm)	0.049" (1.25mm)
Electrical Life	30,000 Cycles	100,000 Cycles
Mechanical Life	1,000,000 Cycles	Not Specified
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.50.7000	8536.50.7000

Engineering Selection Recommendations

The LCGGF5T23ECU is the appropriate substitute for the obsolete AH1684-A based on the following factors:

Product Status: The AH1684-A is obsolete, while the LCGGF5T23ECU is in active production, ensuring long-term availability and supply chain continuity.

Regulatory Compliance: Both parts maintain REACH Unaffected status and EAR99 classification, with identical HTSUS codes (8536.50.7000), confirming equivalent regulatory standing.

Electrical Specifications: The LCGGF5T23ECU meets or exceeds all critical electrical parameters: 1A current rating, 125V AC and 30V DC voltage ratings, and SPDT circuit configuration with On-Momentary function.

Mechanical Compatibility: Both switches feature identical actuator type (lever with simulated roller), chassis mount configuration, and solder lug termination, supporting direct mechanical substitution in existing designs.

Performance Enhancement: The LCGGF5T23ECU provides extended electrical life (100,000 cycles versus 30,000 cycles), offering improved durability for high-cycle applications.

Frequently Asked Questions (FAQ)

Q: Can the LCGGF5T23ECU directly replace the AH1684-A in existing assemblies?

A: Yes. Both switches share identical circuit configuration (SPDT), current rating (1A AC/DC), voltage ratings (125V AC / 30V DC), actuator type (lever with simulated roller), mounting type (chassis mount), and termination style (solder lug). The mechanical and electrical interfaces are compatible.

Q: What are the differences in mechanical characteristics between these parts?

A: The LCGGF5T23ECU exhibits slightly higher operating force (28gf versus 26gf), increased pretravel (0.252" versus 0.083"), and greater differential travel (0.062" versus 0.020"). These variations fall within acceptable tolerances for SPDT snap action switches and do not affect functional compatibility in standard applications.

Q: Does the LCGGF5T23ECU offer any performance advantages?

A: The LCGGF5T23ECU provides extended electrical life rating of 100,000 cycles compared to the AH1684-A's 30,000 cycles, making it suitable for applications requiring higher cycle counts.

Q: Are there packaging differences between these parts?

A: The AH1684-A is supplied in standard packaging, while the LCGGF5T23ECU is supplied in bulk packaging. Both are suitable for solder lug termination and chassis mount installation.

Q: What is the regulatory status of the LCGGF5T23ECU?

A: The LCGGF5T23ECU maintains REACH Unaffected status and EAR99 classification, identical to the AH1684-A, with matching HTSUS code 8536.50.7000.

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