OSTH405705B Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The OSTH405705B is a 5-position terminal block plug manufactured by On Shore Technology Inc., featuring female sockets with 0.197" (5.00mm) pitch spacing and 270° wire entry orientation. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations. The part operates within a 300V UL rating and supports wire gauges from 12-26 AWG, utilizing screwless push-in spring termination technology.

Key Parameters

Parameter	OSTH405705B
Number of Positions	5
Pitch	0.197" (5.00mm)
Type	Plug, Female Sockets
Mounting Type	Free Hanging (In-Line)
Termination Style	Screwless - Leg Spring, Push-In Spring
Wire Gauge Range	12-26 AWG
Voltage - UL	300 V
Operating Temperature	-30°C ~ 105°C
Contact Mating Finish	Tin
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution compatibility for the OSTH405705B is determined by the following critical parameters:

Position Count & Pitch: Both the main part and substitute must maintain 5 positions at 0.197" (5.00mm) spacing to ensure mechanical and electrical compatibility with mating connectors
Connector Type: Female socket plugs with identical free-hanging in-line mounting configuration
Termination Method: Screwless push-in spring technology for consistent wire insertion and retention
Electrical Ratings: Voltage and current ratings must meet or exceed the original specification (minimum 300V UL)
Wire Gauge Compatibility: Support for 12-26 AWG wire range
Flammability & Compliance: UL94 V-0 rating and ROHS3 compliance required for regulatory equivalence

The Phoenix Contact 1910380 qualifies as a substitute based on these parameters, with the primary difference being wire entry orientation (180° versus 270°) and enhanced electrical specifications.

Parameter Comparison

Parameter	OSTH405705B	1910380 (Phoenix Contact)
Manufacturer	On Shore Technology Inc.	Phoenix Contact
Series	OSTH4	COMBICON FKC
Number of Positions	5	5
Pitch	0.197" (5.00mm)	0.197" (5.00mm)
Type	Plug, Female Sockets	Plug, Female Sockets
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Termination Style	Screwless - Leg Spring, Push-In Spring	Screwless - Leg Spring, Push-In Spring
Wire Gauge Range - AWG	12-26 AWG	12-26 AWG
Voltage - UL	300 V	300 V
Contact Mating Finish	Tin	Tin
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Plug Wire Entry	270°	180°
Current - IEC	Not specified	12A
Voltage - IEC	Not specified	630 V
Current - UL	Not specified	10 A
Wire Gauge Range - mm²	Not specified	0.2-2.5mm²
Product Status	Obsolete	Active

Engineering Selection Recommendations

The Phoenix Contact 1910380 serves as a direct functional substitute for the obsolete OSTH405705B based on electrical and mechanical parameter alignment. Both components maintain identical pitch spacing, position count, termination methodology, and core voltage ratings. The 1910380 provides enhanced specifications including defined IEC current ratings (12A) and elevated voltage capability (630V IEC), which exceed the original part's requirements.

The primary design consideration is wire entry orientation: the OSTH405705B features 270° entry while the 1910380 provides 180° entry. This difference requires physical layout verification to confirm compatibility within the target application's spatial constraints and cable routing configuration.

Both parts maintain ROHS3 compliance and UL94 V-0 flammability ratings, ensuring regulatory equivalence. The 1910380's active product status provides supply chain continuity and ongoing manufacturer support, addressing the obsolescence limitation of the original component.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1910380 directly replace the OSTH405705B in existing assemblies?

A: Mechanical and electrical compatibility is established through matching pitch (5.00mm), position count (5), termination style (push-in spring), and voltage ratings (300V UL). Physical installation feasibility depends on wire entry orientation compatibility. The 1910380's 180° entry differs from the OSTH405705B's 270° orientation, requiring verification that cable routing and connector positioning accommodate this change.

Q: Are there compliance differences between these parts?

A: Both components maintain ROHS3 compliance and UL94 V-0 flammability certification. No regulatory compliance gaps exist between the original and substitute part.

Q: What wire gauge specifications apply to the 1910380?

A: The 1910380 supports 12-26 AWG wire gauge range, matching the OSTH405705B specification. Metric equivalent is 0.2-2.5mm², providing dual specification documentation for international applications.

Q: Does the 1910380 provide higher electrical performance?

A: The 1910380 includes defined IEC ratings (12A current, 630V voltage) and UL current specification (10A), whereas the OSTH405705B does not specify IEC parameters. These enhanced ratings indicate superior electrical capability while maintaining compatibility with the original 300V UL requirement.

Q: What is the significance of the different wire entry orientations?

A: Wire entry orientation (270° versus 180°) affects physical cable approach angle and connector positioning within the assembly. Both orientations utilize identical push-in spring termination, but spatial layout must accommodate the directional difference to ensure proper installation and cable strain relief.

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