Phoenix Contact 5443043 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5443043 is a 16-position terminal block header with male pins, shrouded on two sides, featuring 0.197" (5.00mm) pitch and 90° right-angle orientation for through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part operates at 10A (IEC) / 12A (UL) and 400V (IEC) / 300V (UL), with solder termination and side interlocking features.

Key Parameters

Parameter	Value
Number of Positions	16
Positions Per Level	8
Number of Levels	2
Pitch	0.197" (5.00mm)
Header Orientation	90°, Right Angle
Type	Header, Male Pins, Shrouded (2 Side)
Termination Style	Solder
Mounting Type	Through Hole
Current - IEC	10A
Voltage - IEC	400V
Current - UL	12A
Voltage - UL	300V
Contact Mating Finish	Tin
Material Flammability Rating	UL94 V-0
Contact Tail Length	0.126" (3.20mm)
Insulation Height	0.933" (23.70mm)
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5443043 is determined by strict alignment across the following critical parameters:

Position Configuration: 16 positions arranged as 8 positions per level across 2 levels Pitch Specification: 0.197" (5.00mm) center-to-center spacing Connector Type: Male pin header with dual-side shrouding Orientation: 90° right-angle configuration Termination Method: Solder attachment to PCB Mounting: Through-hole technology Electrical Performance: Minimum 10A (IEC) and 12A (UL) current rating; minimum 400V (IEC) and 300V (UL) voltage rating Contact Finish: Tin plating Flammability Compliance: UL94 V-0 material rating Physical Dimensions: Contact tail length 0.126" (3.20mm) and insulation height 0.933" (23.70mm) Regulatory Compliance: RoHS compliance and MSL 1 rating

The Phoenix Contact 1846425 meets all specified substitution criteria and is classified as an active product, providing a direct functional equivalent for the obsolete 5443043.

Parameter Comparison

Parameter	5443043 (Main Part)	1846425 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Number of Positions	16	16
Positions Per Level	8	8
Number of Levels	2	2
Pitch	0.197" (5.00mm)	0.197" (5.00mm)
Header Orientation	90°, Right Angle	90°, Right Angle
Type	Header, Male Pins, Shrouded (2 Side)	Header, Male Pins, Shrouded (2 Side)
Termination Style	Solder	Solder
Mounting Type	Through Hole	Through Hole
Current - IEC	10A	10A
Voltage - IEC	400V	400V
Current - UL	12A	15A
Voltage - UL	300V	300V
Contact Mating Finish	Tin	Tin
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Tail Length	0.126" (3.20mm)	0.126" (3.20mm)
Insulation Height	0.933" (23.70mm)	0.933" (23.70mm)
RoHS Status	RoHS Compliant	RoHS Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Series	BCDH	COMBICON MDSTB
Housing Material	Polyamide (PA), Nylon	Polybutylene Terephthalate (PBT)

Engineering Selection Recommendations

The Phoenix Contact 1846425 is the qualified substitute for the obsolete 5443043. Both components maintain identical electrical specifications across IEC and UL standards, with the 1846425 providing enhanced UL current rating (15A versus 12A), representing improved performance margin. Both parts carry RoHS compliance certification and UL94 V-0 flammability rating, meeting regulatory requirements for industrial applications.

The primary distinction is product status: the 5443043 is obsolete with limited inventory availability, while the 1846425 is an active product within the COMBICON MDSTB series, ensuring long-term supply chain viability. The housing material differs (polyamide versus polybutylene terephthalate), but both materials satisfy the specified UL94 V-0 flammability requirement and maintain equivalent mechanical and thermal performance within the defined operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 1846425 be used as a direct replacement for the 5443043 in existing designs?

A: Yes. The 1846425 meets all critical substitution parameters: identical 16-position configuration, 5.00mm pitch, 90° right-angle orientation, solder termination, through-hole mounting, and electrical ratings that meet or exceed the original specification. Physical dimensions and contact geometry are identical.

Q: What is the difference in housing material between these parts?

A: The 5443043 uses polyamide (PA/nylon) housing, while the 1846425 uses polybutylene terephthalate (PBT). Both materials achieve UL94 V-0 flammability rating and are suitable for the specified voltage and current applications. Material selection does not affect electrical performance or mechanical compatibility.

Q: Does the higher UL current rating of the 1846425 (15A vs. 12A) affect compatibility?

A: No. The higher rating represents improved performance capability and does not create compatibility issues. The 1846425 operates safely at the original 12A specification and below, making it suitable for applications designed for the 5443043.

Q: Are both parts RoHS compliant?

A: Yes. Both the 5443043 and 1846425 are RoHS compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting regulatory requirements for industrial and commercial applications.

Q: What is the availability difference between these parts?

A: The 5443043 is obsolete with limited remaining inventory (721 pcs). The 1846425 is an active product with current production and supply chain support (784 pcs in stock), providing long-term availability for new designs and ongoing maintenance.

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