ED205/3DS 3-Position Terminal Block Equivalent & Substitute Parts

Part Overview

The ED205/3DS is a 3-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for vertical PCB mounting with 10mm pitch spacing. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and mounting specifications align with the original design requirements, enabling component procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Positions Per Level	3
Pitch	0.394" (10.00mm)
Mating Orientation	Vertical with Board
Mounting Type	Through Hole
Wire Gauge	14-22 AWG
Current Rating	15 A
Voltage Rating	300 V
Screw Thread	M3
Operating Temperature Range	-30°C ~ 105°C

Substitute Part Grouping Explanation

Substitution eligibility for the ED205/3DS is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Positions per level: 3
Pitch: 0.394" (10.00mm)
Mating orientation: Vertical with Board
Mounting type: Through Hole
Screw thread: M3

Electrical Compatibility Criteria:

Current rating: minimum 15 A
Voltage rating: minimum 300 V
Wire gauge acceptance: must accommodate 14-22 AWG range

Mechanical & Environmental Criteria:

Operating temperature range must encompass or exceed -30°C ~ 105°C
Housing material: Polyamide (PA) or equivalent nylon composition
Contact material: Brass-based with appropriate plating

All identified substitute parts meet these mandatory criteria, ensuring direct functional equivalence in standard PCB applications.

Parameter Comparison

Parameter	ED205/3DS (Main)	OSTTB031161	282852-3
Manufacturer	On Shore Technology Inc.	On Shore Technology Inc.	TE Connectivity AMP Connectors
Positions Per Level	3	3	3
Pitch	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Mating Orientation	Vertical with Board	Vertical with Board	Vertical with Board
Mounting Type	Through Hole	Through Hole	Through Hole
Wire Gauge	14-22 AWG	14-22 AWG	12-30 AWG
Current Rating	15 A	16 A	17.5 A
Voltage Rating	300 V	250 V	600 V
Operating Temperature	-30°C ~ 105°C	-33°C ~ 120°C	Not specified
Screw Thread	M3	M3	M3
Housing Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA66), Nylon 6/6
Contact Material - Plating	Brass	Brass	Brass - Tin Plated
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Affected
Product Status	Active	Active	Active

Engineering Selection Recommendations

ED205/3DS (Primary Component): REACH Unaffected status provides regulatory advantage in applications subject to REACH restrictions. RoHS3 compliant. Active product status ensures continued manufacturer support and availability.

OSTTB031161 (Direct Manufacturer Alternative): On Shore Technology Inc. manufacture ensures consistent design lineage and supply chain reliability. RoHS3 compliant. REACH Unaffected status matches primary component. Voltage rating of 250 V is below the 300 V specification; selection requires confirmation that application voltage does not exceed 250 V. Operating temperature range extends to -33°C and 120°C, providing broader environmental tolerance.

282852-3 (Cross-Manufacturer Alternative): TE Connectivity AMP Connectors manufacture provides established market presence. Voltage rating of 600 V and current rating of 17.5 A exceed primary component specifications. Wire gauge acceptance extends to 12-30 AWG, accommodating larger conductor sizes. REACH Affected status requires regulatory review for applications in REACH-restricted regions. RoHS compliant status confirmed. Operating temperature range not specified; verification required for temperature-critical applications.

Frequently Asked Questions (FAQ)

Q: Can OSTTB031161 be used as a direct replacement for ED205/3DS?

A: OSTTB031161 meets all mechanical and pitch requirements. However, the voltage rating is 250 V compared to 300 V for ED205/3DS. Substitution is valid only if the application circuit voltage does not exceed 250 V. Current rating of 16 A exceeds the 15 A requirement.

Q: What are the key differences between 282852-3 and ED205/3DS?

A: 282852-3 provides higher electrical ratings (600 V, 17.5 A) and broader wire gauge acceptance (12-30 AWG vs. 14-22 AWG). Housing material is PA66 nylon 6/6 versus standard polyamide. Contact plating is tin-plated brass versus unplated brass. REACH Affected status differs from REACH Unaffected for ED205/3DS. Operating temperature range is not specified for 282852-3.

Q: Are all three parts mechanically interchangeable on the PCB?

A: Yes. All three parts share identical pitch (10mm), mounting type (through hole), screw thread (M3), and mating orientation (vertical with board). PCB footprints are compatible.

Q: Which substitute part should be selected for REACH-restricted applications?

A: OSTTB031161 maintains REACH Unaffected status, matching ED205/3DS. 282852-3 is REACH Affected and requires regulatory assessment before use in REACH-restricted regions.

Q: Can 282852-3 accommodate larger wire gauges than ED205/3DS?

A: Yes. 282852-3 accepts 12-30 AWG wire, compared to 14-22 AWG for ED205/3DS. This enables use with larger conductor cross-sections if required by circuit design.

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