Phoenix Contact 1981843 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1981843 is a 12-position terminal block plug with male pins, 0.200" (5.08mm) pitch, designed for 180° free-hanging in-line applications. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The substitute part maintains identical electrical and mechanical specifications while offering current product status and improved availability.

Key Parameters

Parameter	Value
Manufacturer	Phoenix Contact
Category	Terminal Blocks
Type	Plug, Male Pins
Number of Positions	12
Pitch	0.200" (5.08mm)
Plug Wire Entry	180°
Mounting Type	Free Hanging (In-Line)
Current - IEC	12A
Voltage - IEC	630 V
Current - UL	10 A
Voltage - UL	300 V
Wire Gauge - AWG	12-26 AWG
Wire Gauge - mm²	0.2-2.5mm²
Termination Style	Screwless - Leg Spring, Push-In Spring
Housing Material	Polyamide (PA), Nylon
Contact Mating Finish	Tin
Material Flammability Rating	UL94 V-0
Wire Strip Length	10mm
Insulation Height	0.591" (15.00mm)
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

The Phoenix Contact 1981843 has one direct substitute: part number 1873456. Substitution is valid based on the following criteria:

Electrical Compatibility:

Identical current ratings (IEC: 12A, UL: 10A)
Identical voltage ratings (IEC: 630V, UL: 300V)
Identical wire gauge acceptance (12-26 AWG / 0.2-2.5mm²)
Identical termination method (Screwless - Leg Spring, Push-In Spring)

Mechanical Compatibility:

Identical position count (12 positions)
Identical pitch (0.200" / 5.08mm)
Identical wire entry angle (180°)
Identical mounting configuration (Free Hanging In-Line)
Identical housing material (Polyamide/Nylon)
Identical insulation height (0.591" / 15.00mm)

Regulatory & Environmental:

Identical flammability rating (UL94 V-0)
Identical RoHS compliance status
Identical MSL rating (1 - Unlimited)

The substitute differs only in product status (Active vs. Obsolete) and series designation (COMBICON FKIC vs. COMBICON FKICS), with no impact on functional or physical compatibility.

Parameter Comparison

Parameter	1981843 (Main Part)	1873456 (Substitute)	Match
Manufacturer	Phoenix Contact	Phoenix Contact	✓
Category	Terminal Blocks	Terminal Blocks	✓
Type	Plug, Male Pins	Plug, Male Pins	✓
Number of Positions	12	12	✓
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	✓
Plug Wire Entry	180°	180°	✓
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	✓
Current - IEC	12A	12A	✓
Voltage - IEC	630 V	630 V	✓
Current - UL	10 A	10 A	✓
Voltage - UL	300 V	300 V	✓
Wire Gauge - AWG	12-26 AWG	12-26 AWG	✓
Wire Gauge - mm²	0.2-2.5mm²	0.2-2.5mm²	✓
Termination Style	Screwless - Leg Spring, Push-In Spring	Screwless - Leg Spring, Push-In Spring	✓
Housing Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	✓
Contact Mating Finish	Tin	Tin	✓
Material Flammability Rating	UL94 V-0	UL94 V-0	✓
Wire Strip Length	10mm	10mm	✓
Insulation Height	0.591" (15.00mm)	0.591" (15.00mm)	✓
RoHS Status	RoHS Compliant	RoHS Compliant	✓
MSL Rating	1 (Unlimited)	1 (Unlimited)	✓
Product Status	Obsolete	Active	—
Series	COMBICON FKICS	COMBICON FKIC	—

Engineering Selection Recommendations

The Phoenix Contact 1873456 is the direct equivalent for the obsolete 1981843. Selection is based on the following factors:

Product Status: The 1873456 carries Active product status, ensuring long-term availability and manufacturer support. The 1981843 is classified as Obsolete, limiting future procurement options.

Regulatory Compliance: Both parts maintain identical RoHS compliance and UL94 V-0 flammability certification, meeting current regulatory requirements for industrial terminal block applications.

Electrical & Mechanical Specifications: All critical parameters—current capacity, voltage rating, wire gauge acceptance, pitch, position count, and termination method—are identical between the two parts. No circuit redesign or mechanical modification is required.

Packaging Consideration: The 1873456 is supplied in Bulk packaging, whereas the 1981843 packaging is unspecified. Verify bulk packaging compatibility with your procurement and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1873456 be used as a direct replacement for the 1981843 in existing assemblies?

A: Yes. All electrical and mechanical parameters are identical. The 1873456 will function identically in any application designed for the 1981843 without circuit or mechanical modifications.

Q: What is the difference between the COMBICON FKICS and COMBICON FKIC series designations?

A: The series designation reflects product line evolution. Both series share identical electrical and mechanical specifications for this 12-position, 5.08mm pitch plug configuration. The FKIC series (1873456) represents the current product line.

Q: Are there any compatibility concerns with wire gauge or termination?

A: No. Both parts accept 12-26 AWG (0.2-2.5mm²) wire and use identical Screwless Leg Spring, Push-In Spring termination. Wire preparation and installation procedures remain unchanged.

Q: Why is the 1981843 classified as Obsolete?

A: Product obsolescence typically reflects manufacturer discontinuation in favor of updated product lines. The 1873456 represents the current equivalent within the Phoenix Contact COMBICON terminal block family.

Q: Does the bulk packaging of the 1873456 affect compatibility?

A: Packaging format does not affect component compatibility. Bulk packaging is a supply format consideration only. Verify that bulk quantities meet your procurement requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1981843 and 1873456 are RoHS Compliant, meeting current environmental and regulatory standards for electronic components.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message