OSTTS03515D Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The OSTTS03515D is a 3-position terminal block plug manufactured by On Shore Technology Inc., featuring female sockets with 0.200" (5.08mm) pitch spacing. This component is designed for free-hanging (in-line) applications with screw termination and operates across a temperature range of -30°C to 105°C. The part maintains Active product status and is RoHS3 compliant with UL94 V-0 flammability rating.

Substitute parts become necessary when specific application requirements demand alternative wire entry orientations, enhanced current ratings, or different termination mechanisms while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	OSTTS03515D
Manufacturer	On Shore Technology Inc.
Category	Terminal Blocks
Type	Plug, Female Sockets
Number of Positions	3
Pitch	0.200" (5.08mm)
Mounting Type	Free Hanging (In-Line)
Termination Style	Screw
Voltage - UL	300 V
Wire Gauge Range - AWG	12-24 AWG
Wire Gauge Range - mm²	0.34-2.5mm²
Operating Temperature	-30°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the OSTTS03515D is determined by the following mandatory parameters:

Pitch spacing: 0.200" (5.08mm) — must match exactly
Number of positions: 3 positions — must match exactly
Type: Plug with female sockets — must match exactly
Mounting type: Free hanging (in-line) — must match exactly
Voltage rating: Minimum 300 V UL — substitute must meet or exceed
Wire gauge compatibility: Must accommodate 12-24 AWG (0.34-2.5mm²) — substitute must support this range or broader
Flammability rating: UL94 V-0 — must match or exceed
RoHS compliance: ROHS3 — must maintain compliance
Product status: Active — substitute must be active

The two identified substitutes (Phoenix Contact 1912634 and 1913073) meet all mandatory parameters. Differences in wire entry orientation (90° and 270° respectively versus unspecified in the main part) and termination mechanism (rising cage clamp versus standard screw) represent design variations that do not affect core substitution eligibility when application geometry permits.

Parameter Comparison

Parameter	OSTTS03515D	1912634 (Phoenix Contact)	1913073 (Phoenix Contact)
Manufacturer	On Shore Technology Inc.	Phoenix Contact	Phoenix Contact
Number of Positions	3	3	3
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)
Type	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Termination Style	Screw	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp
Plug Wire Entry	Not specified	90°	270°
Voltage - UL	300 V	300 V	300 V
Current - UL	Not specified	16 A	16 A
Wire Gauge Range - AWG	12-24 AWG	12-30 AWG	12-30 AWG
Wire Gauge Range - mm²	0.34-2.5mm²	0.2-2.5mm²	0.2-2.5mm²
Color	Green	Green	Green
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

Both Phoenix Contact substitutes maintain Active product status and full ROHS3 compliance with UL94 V-0 flammability certification, meeting all regulatory requirements of the original OSTTS03515D.

1912634 (90° Wire Entry): Suitable for applications requiring right-angle wire entry geometry. Supports expanded wire gauge range (12-30 AWG) and provides specified current rating of 16 A at 300 V UL. Rising cage clamp termination offers enhanced wire retention compared to standard screw termination.

1913073 (270° Wire Entry): Suitable for applications requiring wire entry from the opposite side. Identical electrical specifications and compliance profile to 1912634, with wire entry orientation as the primary design differentiator.

Selection between substitutes depends solely on physical installation geometry and wire routing requirements. Both parts satisfy all electrical and safety parameters of the original component.

Frequently Asked Questions (FAQ)

Q: Can 1912634 or 1913073 be used as direct replacements for OSTTS03515D?

A: Yes, both parts satisfy all mandatory substitution criteria: identical pitch (5.08mm), position count (3), type (plug with female sockets), mounting configuration (free hanging in-line), voltage rating (300 V UL), and compliance certifications (ROHS3, UL94 V-0). Selection depends on wire entry orientation requirements specific to your application geometry.

Q: What is the difference between the two Phoenix Contact substitutes?

A: The primary difference is wire entry orientation. Part 1912634 features 90° wire entry, while 1913073 features 270° wire entry. Both provide identical electrical performance, current rating (16 A), and termination mechanism (screw with rising cage clamp). Choose based on your installation space and wire routing configuration.

Q: Do the Phoenix Contact substitutes support the same wire gauge range as OSTTS03515D?

A: The Phoenix Contact parts support an expanded range: 12-30 AWG (0.2-2.5mm²) compared to the original 12-24 AWG (0.34-2.5mm²). This broader range provides additional flexibility for smaller gauge applications while maintaining full compatibility with the original specification range.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts maintain identical compliance status: ROHS3 compliant, UL94 V-0 flammability rating, and Active product status. All are suitable for equivalent regulatory environments.

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

A: Both termination methods are screw-based. Rising cage clamp termination provides mechanical wire retention features that prevent accidental wire displacement during installation. Standard screw termination relies on screw pressure alone. Both methods are functionally equivalent for electrical connection.

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