Phoenix Contact 5437758 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 5437758 is a 2-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	2
Pitch	0.150" (3.81mm)
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

Substitute Part Grouping Explanation

Substitution for the Phoenix Contact 5437758 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility: Identical current (8A IEC/UL) and voltage ratings (320V IEC / 300V UL)
Physical Compatibility: Matching 2-position configuration, 0.150" (3.81mm) pitch, and 90° wire entry orientation
Mechanical Compatibility: Free-hanging in-line mounting type and compatible wire gauge acceptance (14-30 AWG minimum)
Material & Safety Compliance: UL94 V-0 flammability rating and polyamide housing construction
Termination Interface: Screw-based termination allowing direct functional replacement

The Phoenix Contact 1827127 meets all substitution criteria while offering active product status and enhanced wire gauge compatibility (0.14-1.5mm²).

Parameter Comparison

Parameter	5437758 (Main Part)	1827127 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Category	Terminal Blocks	Terminal Blocks
Type	Plug, Female Sockets	Plug, Female Sockets
Number of Positions	2	2
Pitch	0.150" (3.81mm)	0.150" (3.81mm)
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
Torque - Screw	0.2-0.25 Nm (1.7-2.2 Lb-In)	0.22-0.25 Nm (1.9-2.2 Lb-In)
Wire Strip Length	7mm	7mm
Insulation Height	0.752" (19.10mm)	0.752" (19.10mm)
Contact Mating Finish	Tin	Tin
Product Status	Obsolete	Active
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 1827127 is the direct functional substitute for the obsolete 5437758. Both components share identical electrical ratings, physical dimensions, and mechanical compatibility. The 1827127 offers the following advantages:

Active Product Status: The 1827127 is currently in active production, ensuring long-term availability and supply chain continuity.
Enhanced Compliance: ROHS3 certification provides compliance with current regulatory requirements, compared to the RoHS Compliant status of the 5437758.
Improved Termination Technology: Rising cage clamp termination in the 1827127 provides enhanced wire retention compared to standard screw termination.
Extended Wire Gauge Compatibility: The 1827127 accepts wire gauges down to 0.14mm², providing broader application flexibility while maintaining the 1.5mm² upper limit.
Regulatory Alignment: REACH Unaffected status of the 1827127 confirms compliance with current European chemical regulations.

Selection of the 1827127 is appropriate for all applications previously served by the 5437758, with no functional or mechanical modifications required.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1827127 directly replace the 5437758 in existing assemblies?

A: Yes. Both components share identical pitch (0.150" / 3.81mm), 2-position configuration, 90° wire entry, and electrical ratings (8A / 320V IEC). Physical and functional compatibility is complete. No modifications to mating connectors or PCB layouts are required.

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

A: The 5437758 uses standard screw termination requiring manual screw tightening. The 1827127 uses rising cage clamp termination, which provides automatic wire retention as the screw is tightened, reducing the risk of wire displacement during installation.

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

A: The 1827127 accepts wire gauges from 0.14-1.5mm², while the 5437758 accepts 0.2-1.5mm². The 1827127 provides broader compatibility for smaller gauge wires. Both parts accept the full 14-30 AWG range.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The 5437758 is obsolete and no longer manufactured. The 1827127 is in active production, ensuring availability for new designs and replacement stock. For any new applications or long-term supply requirements, the 1827127 is the appropriate selection.

Q: Do both parts meet current regulatory requirements?

A: The 1827127 carries ROHS3 and REACH Unaffected certifications, confirming compliance with current European regulations. The 5437758 carries RoHS Compliant status. Both maintain UL94 V-0 flammability ratings and EAR99 export classification.

Q: Is torque specification identical between the two parts?

A: Torque ranges are similar but not identical. The 5437758 specifies 0.2-0.25 Nm (1.7-2.2 Lb-In), while the 1827127 specifies 0.22-0.25 Nm (1.9-2.2 Lb-In). Both fall within acceptable industrial practice for M2 screw termination.

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