Phoenix Contact 5437774 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5437774 is a 4-position terminal block plug with female sockets, 0.150" (3.81mm) pitch, designed for 90° free-hanging in-line applications. This component operates at 8A (IEC/UL) and 320V (IEC) / 300V (UL), accommodating wire gauges from 14-30 AWG (0.2-1.5mm²). The part is classified as obsolete, making substitute components necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Key Parameters

Parameter	Value
Number of Positions	4
Pitch	0.150" (3.81mm)
Type	Plug, Female Sockets
Plug Wire Entry	90°
Mounting Type	Free Hanging (In-Line)
Current Rating (IEC)	8A
Voltage Rating (IEC)	320V
Wire Gauge Range	14-30 AWG (0.2-1.5mm²)
Termination Style	Screw
Housing Material	Polyamide (PA), Nylon
Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 5437774 is determined by strict alignment of electrical and mechanical parameters:

Critical Matching Parameters:

4-position configuration with 0.150" (3.81mm) pitch spacing
Female socket plug type with 90° wire entry orientation
Free-hanging in-line mounting configuration
8A current rating (IEC/UL) and 320V (IEC) / 300V (UL) voltage ratings
Wire gauge compatibility: 14-30 AWG minimum range
Screw-based termination mechanism
UL94 V-0 flammability classification
RoHS compliance status

The Phoenix Contact 1827143 qualifies as a direct substitute based on these parameters. Both components share identical position count, pitch, connector type, orientation, mounting style, and electrical ratings. Variations in termination mechanism (rising cage clamp vs. standard screw) and housing color do not affect functional interchangeability within the specified electrical and mechanical envelope.

Parameter Comparison

Parameter	5437774 (Main Part)	1827143 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Series	BCVP	COMBICON MCVR
Product Status	Obsolete	Active
Number of Positions	4	4
Pitch	0.150" (3.81mm)	0.150" (3.81mm)
Type	Plug, Female Sockets	Plug, Female Sockets
Plug Wire Entry	90°	90°
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Current - IEC	8A	8A
Voltage - IEC	320V	320V
Current - UL	8A	8A
Voltage - UL	300V	300V
Wire Gauge - AWG	14-30 AWG	14-30 AWG
Wire Gauge - mm²	0.2-1.5mm²	0.14-1.5mm²
Termination Style	Screw	Screw - Rising Cage Clamp
Housing Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Flammability Rating	UL94 V-0	UL94 V-0
Screw Size	M2	M2
Insulation Height	0.752" (19.10mm)	0.752" (19.10mm)
RoHS Status	RoHS Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS Code	8536.90.4000	8536.90.4000

Engineering Selection Recommendations

The Phoenix Contact 1827143 is the qualified substitute for the obsolete 5437774. Selection is based on the following engineering criteria:

Product Status: The 5437774 is obsolete, necessitating transition to active production components. The 1827143 maintains active status with established supply chain availability (3999 pcs in stock vs. 1058 pcs for the legacy part).

Electrical Equivalence: Both components meet identical IEC and UL electrical specifications (8A/320V IEC, 8A/300V UL), ensuring direct functional replacement in existing circuit designs without derating or performance compromise.

Mechanical Compatibility: Identical pitch (3.81mm), position count (4), connector orientation (90° free-hanging), and mounting configuration guarantee physical interchangeability within existing connector housings and PCB layouts.

Compliance Alignment: Both parts maintain UL94 V-0 flammability classification and RoHS compliance. The 1827143 carries ROHS3 certification, representing current regulatory compliance standards.

Termination Consideration: The 1827143 employs rising cage clamp termination versus standard screw termination on the 5437774. This enhancement provides improved wire retention and reduced installation torque variation, representing a technical advancement without backward compatibility issues.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1827143 directly replace the 5437774 in existing assemblies?

A: Yes. Both components share identical electrical ratings (8A/320V IEC), pitch spacing (3.81mm), position count (4), connector type (female socket plug), and mounting configuration (90° free-hanging in-line). Physical and electrical interchangeability is confirmed.

Q: What is the difference between screw termination and rising cage clamp termination?

A: The 5437774 uses standard screw termination requiring manual torque application (0.2-0.25 Nm). The 1827143 uses rising cage clamp termination, which provides spring-loaded wire retention with reduced torque sensitivity (0.22-0.25 Nm). Both methods achieve equivalent electrical connection reliability within specified wire gauge ranges.

Q: Are there wire gauge compatibility differences between these parts?

A: The 5437774 accepts 14-30 AWG (0.2-1.5mm²). The 1827143 accepts 14-30 AWG (0.14-1.5mm²), providing slightly expanded lower-gauge capability. Both parts accommodate the full range of the legacy component.

Q: Does the housing color difference affect electrical performance?

A: No. The 5437774 uses gray housing; the 1827143 uses green housing. Color is a visual identifier only and does not impact electrical characteristics, current rating, voltage rating, or functional performance.

Q: What is the inventory status for each part?

A: The 5437774 (obsolete) has 1058 pcs available. The 1827143 (active) has 3999 pcs available, providing superior long-term supply security for new designs and ongoing production requirements.

Q: Are both parts RoHS compliant?

A: Yes. The 5437774 is RoHS Compliant. The 1827143 is ROHS3 Compliant, representing alignment with current regulatory requirements. Both meet hazardous substance restrictions.

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