AM1307K Equivalent & Substitute Parts

Part Overview

The AM1307K is a snap action switch manufactured by Panasonic Electric Works, featuring SPDT (Single Pole Double Throw) circuit configuration with 10A AC and 500mA DC current rating at 125V. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The switch employs an overtravel plunger actuator with panel mount configuration and screw terminal termination, designed for applications requiring reliable on-momentary switching action.

Key Parameters

Parameter	Value
Manufacturer Part Number	AM1307K
Manufacturer	Panasonic Electric Works
Circuit Configuration	SPDT
Switch Function	On-Mom
Current Rating (AC)	10A
Current Rating (DC)	500mA
Voltage Rating (AC)	125V
Voltage Rating (DC)	125V
Actuator Type	Overtravel Plunger
Mounting Type	Panel Mount
Termination Style	Screw Terminal
Operating Temperature Range	-25°C to 80°C
Operating Force	370gf
Release Force	114gf
Operating Position	0.859" (21.8mm)
Mechanical Life	5,000,000 Cycles
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the AM1307K is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Electrical Compatibility: Circuit configuration (SPDT), switch function (On-Mom), voltage ratings (125V AC/DC), and current capacity must meet or exceed the original specification.

Mechanical Compatibility: Actuator type (overtravel plunger), mounting configuration (panel mount), termination style (screw terminal), and operating position (0.859" / 21.8mm) must match to ensure physical and functional interchangeability.

Operational Parameters: Operating force, release force, pretravel, differential travel, and overtravel must fall within acceptable ranges to maintain system performance characteristics.

Environmental Specifications: Operating temperature range and mechanical life cycles must support the intended application requirements.

Substitute parts are grouped into two categories:

Direct Substitutes (Panel Mount, 15A AC Rating): BZ-2RQ124-A2, BZ-2RQ1T04, BZ-2RQ233-A2, BZ-7RQ1T, and GPTCNH01 provide higher current capacity (15A AC) while maintaining identical mounting type, operating position, and core mechanical specifications. These parts are suitable for applications where the 10A rating of the original part can be upgraded.

Functional Equivalents (Alternate Mounting or Current Rating): BZ-2RQ172-A2, BZ-2RQ722233-A2, BZ-2RQ68, BZ-3RQ1-A2, and BZ-RQ66 offer SPDT on-momentary functionality with 125V rating but vary in current capacity, mounting type, or operating position. These require design verification before implementation.

Parameter Comparison

Parameter	AM1307K	BZ-2RQ124-A2	BZ-2RQ172-A2	BZ-2RQ1T04	BZ-2RQ233-A2	BZ-2RQ68	BZ-2RQ722233-A2	BZ-3RQ1-A2	BZ-7RQ1T	BZ-RQ66	GPTCNH01
Manufacturer	Panasonic	Honeywell	Honeywell	Honeywell	Honeywell	Honeywell	Honeywell	Honeywell	Honeywell	Honeywell	ZF Electronics
Circuit	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Switch Function	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom
Current Rating (AC)	10A	15A	1A	15A	15A	15A	1A	15A	15A	15A	15A
Current Rating (DC)	500mA	500mA	—	500mA	500mA	500mA	—	500mA	500mA	—	—
Voltage Rating (AC)	125V	125V	125V	125V	125V	125V	125V	125V	125V	125V	125V
Voltage Rating (DC)	125V	125V	—	125V	125V	125V	—	125V	125V	—	—
Actuator Type	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger	Overtravel Plunger
Mounting Type	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Chassis Mount	Panel Mount	Panel Mount	Panel Mount
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Operating Position	0.859" (21.8mm)	0.859" (21.8mm)	0.859" (21.8mm)	0.859" (21.8mm)	0.859" (21.8mm)	1.500" (38.1mm)	0.859" (21.8mm)	0.859" (21.8mm)	0.859" (21.8mm)	1.500" (38.1mm)	0.825" (21.0mm)
Operating Force	370gf	255–368gf	255–368gf	255–368gf	255–368gf	255–368gf	255–368gf	397–567gf	624–794gf	170–269gf	348gf
Release Force	114gf	113gf	113gf	170gf	113gf	113gf	113gf	113gf	113gf	113gf	113gf
Pretravel	0.015" (0.4mm)	0.015" (0.4mm)	0.015" (0.4mm)	0.015" (0.4mm)	0.015" (0.4mm)	0.015" (0.4mm)	0.015" (0.4mm)	0.020" (0.5mm)	0.030" (0.8mm)	0.012" (0.3mm)	0.015" (0.4mm)
Differential Travel	0.002" (0.05mm)	0.002" (0.05mm)	0.002" (0.05mm)	0.002" (0.05mm)	0.002" (0.05mm)	0.002" (0.05mm)	0.002" (0.05mm)	0.003" (0.075mm)	0.005" (0.13mm)	0.0005" (0.013mm)	0.002" (0.05mm)
Overtravel	0.219" (5.6mm)	0.219" (5.6mm)	0.219" (5.6mm)	0.219" (5.6mm)	0.219" (5.6mm)	0.125" (3.2mm)	0.219" (5.6mm)	0.219" (5.6mm)	0.219" (5.6mm)	0.219" (5.6mm)	0.217" (5.5mm)
Operating Temperature	-25°C to 80°C	-55°C to 121°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	0°C to 55°C
Mechanical Life	5,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles	20,000,000 Cycles
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Obsolete	Active
RoHS Status	—	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes for Direct Replacement:

BZ-2RQ124-A2, BZ-2RQ233-A2, and BZ-7RQ1T are the preferred substitutes for the AM1307K. All three are manufactured by Honeywell Sensing and Productivity Solutions with active product status, RoHS compliance, and identical panel mount configuration with 0.859" operating position. These parts maintain SPDT on-momentary functionality at 125V with 15A AC and 500mA DC ratings, exceeding the original 10A specification. Operating force ranges (255–368gf for BZ-2RQ124-A2 and BZ-2RQ233-A2; 624–794gf for BZ-7RQ1T) and release force (113gf) align with system requirements. Mechanical life of 20,000,000 cycles provides extended service compared to the original 5,000,000 cycles.

Secondary Substitutes with Design Considerations:

BZ-2RQ1T04 offers identical electrical and mechanical specifications to BZ-2RQ124-A2 with the exception of release force (170gf versus 113gf), requiring evaluation of system sensitivity to actuation force characteristics.

GPTCNH01 manufactured by ZF Electronics provides SPDT on-momentary functionality at 125V with 15A AC rating and panel mount configuration. Operating position (0.825" / 21.0mm) and operating force (348gf) closely approximate the original specification. However, the operating temperature range (0°C to 55°C) is narrower than the AM1307K (-25°C to 80°C), limiting suitability for applications requiring extended low-temperature operation.

Substitutes Requiring Application Verification:

BZ-2RQ172-A2 and BZ-2RQ722233-A2 feature reduced current capacity (1A AC) and are suitable only for low-current applications. BZ-2RQ68 and BZ-RQ66 employ 1.500" operating position, requiring mechanical redesign of actuator engagement surfaces. BZ-3RQ1-A2 uses chassis mount configuration instead of panel mount, necessitating enclosure modification.

Frequently Asked Questions (FAQ)

Q: Can BZ-2RQ124-A2 directly replace AM1307K without circuit modification?

A: Yes. BZ-2RQ124-A2 maintains identical SPDT circuit configuration, 125V voltage rating, panel mount type, screw terminal termination, and 0.859" operating position. The 15A AC rating exceeds the original 10A specification, providing design margin. Operating force (255–368gf) encompasses the original 370gf specification, and release force (113gf) matches the original 114gf within engineering tolerance.

Q: What is the significance of operating force variation in substitute parts?

A: Operating force determines the mechanical effort required to actuate the switch. The AM1307K specifies 370gf. BZ-2RQ124-A2 and BZ-2RQ233-A2 provide 255–368gf range, which encompasses the original specification. BZ-7RQ1T specifies 624–794gf, requiring higher actuation force suitable for applications demanding positive engagement confirmation. BZ-RQ66 specifies 170–269gf, requiring lower actuation force appropriate for sensitive applications.

Q: Why do some substitutes have different operating positions?

A: Operating position defines the plunger travel distance at which electrical switching occurs. The AM1307K and most direct substitutes specify 0.859" (21.8mm). BZ-2RQ68 and BZ-RQ66 specify 1.500" (38.1mm), requiring mechanical redesign of actuator linkage or cam surfaces. GPTCNH01 specifies 0.825" (21.0mm), a minor variation acceptable for most applications.

Q: What does mechanical life rating indicate?

A: Mechanical life represents the number of actuations before mechanical degradation occurs. The AM1307K specifies 5,000,000 cycles. All Honeywell substitutes specify 20,000,000 cycles, providing four times the service life. This extended rating supports applications with high-frequency switching requirements or extended operational periods.

Q: Is RoHS compliance a substitution requirement?

A: RoHS compliance is a regulatory requirement for products sold in European Union markets and increasingly in other regions. The AM1307K does not specify RoHS status. All active Honeywell substitutes are RoHS Compliant, and GPTCNH01 is ROHS3 Compliant. For applications subject to RoHS regulations, these substitutes provide regulatory alignment.

Q: Can BZ-3RQ1-A2 substitute for AM1307K?

A: BZ-3RQ1-A2 provides identical electrical specifications and SPDT on-momentary functionality at 125V with 15A AC rating. However, it employs chassis mount configuration instead of panel mount, requiring enclosure modification. Operating force (397–567gf) exceeds the original specification, and pretravel (0.020" / 0.5mm) and differential travel (0.003" / 0.075mm) differ slightly. Implementation requires mechanical redesign.

Q: What temperature range limitations apply to substitute selection?

A: The AM1307K operates from -25°C to 80°C. BZ-2RQ124-A2 extends this to -55°C to 121°C, supporting cryogenic and elevated-temperature applications. BZ-2RQ172-A2, BZ-2RQ1T04, BZ-2RQ233-A2, BZ-2RQ68, BZ-2RQ722233-A2, BZ-3RQ1-A2, and BZ-7RQ1T operate from -55°C to 85°C. GPTCNH01 operates from 0°C to 55°C, limiting use in low-temperature environments. Application temperature requirements determine suitable substitute selection.

Q: Are low-current substitutes (BZ-2RQ172-A2, BZ-2RQ722233-A2) viable alternatives?

A: BZ-2RQ172-A2 and BZ-2RQ722233-A2 are suitable only for applications with maximum current requirements of 1A AC. These parts are not interchangeable with the AM1307K for applications requiring 10A AC or 500mA DC capacity. Use is limited to signal-level switching or control circuits with inherently low current draw.

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