OSTTS11315B Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The OSTTS11315B is an 11-position terminal block plug manufactured by On Shore Technology Inc., featuring female sockets with 0.150" (3.81mm) pitch spacing. This component is designed for free-hanging in-line applications with screw termination and operates across a temperature range of -40°C to 115°C. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating.

Terminal block plugs require substitute evaluation when original inventory is unavailable, when alternative sourcing improves supply chain resilience, or when design requirements permit compatible alternatives that meet electrical and mechanical specifications.

Key Parameters

Parameter	OSTTS11315B Value
Number of Positions	11
Pitch	0.150" (3.81mm)
Type	Plug, Female Sockets
Termination Style	Screw
Mounting Type	Free Hanging (In-Line)
Voltage - UL	300 V
Wire Gauge Range - AWG	16-28 AWG
Wire Gauge Range - mm²	1.5mm²
Operating Temperature	-40°C ~ 115°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTTS11315B is determined by strict alignment of core electrical and mechanical parameters:

Critical Matching Parameters:

Number of positions: 11 (fixed requirement)
Pitch spacing: 0.150" (3.81mm) (fixed requirement)
Connector type: Plug with female sockets (fixed requirement)
Mounting configuration: Free hanging in-line (fixed requirement)
Voltage rating: Minimum 300 V UL (fixed requirement)
Termination method: Screw-based (fixed requirement)

Allowable Variation Parameters:

Wire gauge range may extend beyond 16-28 AWG if the substitute accommodates this range
Voltage rating may exceed 300 V UL
Current rating may be specified in the substitute
Contact finish materials may differ (nickel vs. tin)
Housing materials may differ (brass vs. polyamide)
Screw torque specifications may vary within acceptable engineering tolerances
Wire strip length may vary slightly (6-7mm vs. 7mm)

The Phoenix Contact 1827062 qualifies as a substitute based on matching all critical parameters while providing extended wire gauge accommodation (14-30 AWG vs. 16-28 AWG) and enhanced current rating specification (8A IEC/UL).

Parameter Comparison

Parameter	OSTTS11315B	1827062 (Phoenix Contact)	Compatibility Status
Manufacturer	On Shore Technology Inc.	Phoenix Contact	Different manufacturer
Series	OSTTS	COMBICON MCVW	Different series
Number of Positions	11	11	Match
Pitch	0.150" (3.81mm)	0.150" (3.81mm)	Match
Type	Plug, Female Sockets	Plug, Female Sockets	Match
Termination Style	Screw	Screw - Rising Cage Clamp	Compatible (screw-based)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Match
Voltage - UL	300 V	300 V	Match
Current Rating	Not specified	8 A (UL)	Substitute specifies rating
Wire Gauge - AWG	16-28 AWG	14-30 AWG	Substitute range is broader
Wire Gauge - mm²	1.5mm²	0.14-1.5mm²	Substitute range is broader
Color	Green	Green	Match
Contact Mating Finish	Nickel	Tin	Different finish
Housing Material	Brass	Polyamide (PA), Nylon	Different material
Screw Torque	0.2 Nm (1.7 Lb-In)	0.22-0.25 Nm (1.9-2.2 Lb-In)	Similar specification
Wire Strip Length	6-7mm	7mm	Within range
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
REACH Status	REACH Unaffected	REACH Unaffected	Match
ECCN	EAR99	EAR99	Match

Engineering Selection Recommendations

OSTTS11315B (Primary Part): Use when original part specification is required, when nickel contact finish is mandated by design, or when brass housing material is a system requirement. This part maintains Active status with established supply (793 pcs in stock).

1827062 Phoenix Contact (Substitute): This part qualifies as a functional equivalent when the application permits polyamide housing and tin contact finish. The substitute provides broader wire gauge accommodation (14-30 AWG) and explicit current rating specification (8A), which may benefit applications requiring extended conductor flexibility. Both parts maintain identical pitch, position count, voltage rating, and mounting configuration. Both are RoHS3 compliant with identical regulatory classification (EAR99). The substitute features rising cage clamp termination technology within the screw-based family, maintaining compatibility with standard screw termination procedures.

Selection between these parts should be based on material compatibility requirements, contact finish specifications, and available inventory rather than electrical performance, as both meet the 300V UL voltage requirement and support the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1827062 directly replace the OSTTS11315B in existing assemblies?

A: Direct mechanical and electrical replacement is possible when the application does not require nickel contact finish or brass housing material. Both parts share identical pitch (3.81mm), position count (11), voltage rating (300V UL), and free-hanging in-line mounting configuration. Verify that polyamide housing and tin contact finish are acceptable for your specific application environment and performance requirements.

Q: What is the significance of the different wire gauge ranges?

A: The OSTTS11315B accommodates 16-28 AWG (1.5mm²), while the 1827062 accommodates 14-30 AWG (0.14-1.5mm²). The substitute's broader range permits connection of smaller gauge conductors (14-15 AWG) and larger gauge conductors (29-30 AWG). If your application uses only 16-28 AWG conductors, both parts perform identically. If your design requires 14-15 AWG or 29-30 AWG accommodation, the substitute provides extended flexibility.

Q: Are the screw torque specifications compatible?

A: The OSTTS11315B specifies 0.2 Nm (1.7 Lb-In), while the 1827062 specifies 0.22-0.25 Nm (1.9-2.2 Lb-In). These values are within acceptable engineering tolerance for screw-based termination. Both parts use screw termination methodology; the substitute employs rising cage clamp technology within this family. Standard assembly procedures for screw terminal blocks apply to both parts.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the OSTTS11315B and 1827062 are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Regulatory compliance is equivalent between the two parts.

Q: What is the difference between nickel and tin contact finish?

A: Contact finish affects corrosion resistance and mating characteristics. Nickel finish (OSTTS11315B) provides corrosion resistance in general industrial environments. Tin finish (1827062) offers different contact wear characteristics. Selection depends on your specific environmental conditions and contact cycling requirements. Both finishes are standard in industrial terminal block applications.

Q: Can I use the 1827062 in high-temperature applications?

A: The OSTTS11315B specifies operating temperature of -40°C to 115°C. The 1827062 does not provide an operating temperature specification in the available data. If your application requires confirmed operation at -40°C to 115°C, verify the 1827062 temperature rating with Phoenix Contact before substitution.

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

A: Both are screw-based termination methods. Rising cage clamp is a specific implementation where the clamp mechanism rises as the screw tightens, providing consistent wire retention. Standard screw termination uses direct screw pressure. Both methods are compatible with typical terminal block assembly procedures. The rising cage clamp in the 1827062 may provide enhanced wire retention characteristics.

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