ED120/7DS Equivalent & Substitute Parts

Part Overview

The ED120/7DS is a 7-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for horizontal PCB mounting with 0.200" (5.08mm) pitch spacing. This component is classified as Active product status and serves as a standard interconnection solution in electronic assemblies requiring screw-terminal wire connections. Equivalent and substitute parts may be required due to inventory availability, supply chain considerations, or specific application requirements that align with the electrical and mechanical parameters of this terminal block category.

Key Parameters

Parameter	Value
Positions Per Level	7
Pitch	0.200" (5.08mm)
Mating Orientation	Horizontal with Board
Current Rating	15 A
Voltage Rating	300 V
Wire Gauge	14-22 AWG
Mounting Type	Through Hole
Wire Termination	Screw - Leaf Spring, Wire Guard
Screw Thread	M3
Operating Temperature	-30°C ~ 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ED120/7DS is determined by strict alignment with the following core parameters: 7 positions per level, 0.200" (5.08mm) pitch, horizontal board orientation, through-hole mounting, M3 screw thread, and operating temperature range of -30°C to 105°C. All substitute parts must maintain electrical compatibility (300 V minimum voltage rating, 15 A minimum current rating) and mechanical compatibility (wire gauge acceptance of 14-22 AWG minimum). Wire termination method and housing material may vary provided the substitute maintains functional equivalence for wire-to-board connection applications.

The following parts meet these substitution criteria:

OSTTA074163 (On Shore Technology Inc.): Direct equivalent with identical pitch, position count, and mounting configuration
282841-7 (TE Connectivity AMP Connectors): Functionally equivalent with enhanced electrical ratings and alternative termination method

Parameter Comparison

Parameter	ED120/7DS	OSTTA074163	282841-7
Manufacturer	On Shore Technology Inc.	On Shore Technology Inc.	TE Connectivity AMP Connectors
Positions Per Level	7	7	7
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)
Mating Orientation	Horizontal with Board	Horizontal with Board	Horizontal with Board
Current Rating	15 A	15 A	17.5 A
Voltage Rating	300 V	300 V	300 V
Wire Gauge	14-22 AWG	14-22 AWG	12-30 AWG
Mounting Type	Through Hole	Through Hole	Through Hole
Wire Termination	Screw - Leaf Spring, Wire Guard	Screw - Leaf Spring, Wire Guard	Screw - Rising Cage Clamp
Screw Thread	M3	M3	M3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

OSTTA074163 is the primary direct substitute for ED120/7DS applications. Both parts are manufactured by On Shore Technology Inc., share identical mechanical and electrical specifications, and maintain ROHS3 compliance. This substitute provides the highest compatibility with existing designs and PCB layouts.

282841-7 (TE Connectivity AMP Connectors, Buchanan series) is a functionally equivalent alternative that exceeds the electrical requirements of the ED120/7DS with a 17.5 A current rating and extended wire gauge acceptance (12-30 AWG). This part is suitable for applications requiring enhanced current capacity or broader wire gauge compatibility. The rising cage clamp termination method differs from the leaf spring design but maintains M3 screw thread compatibility and 0.200" pitch alignment. RoHS compliance is confirmed; however, REACH status is listed as vendor undefined for this part.

Both substitute parts maintain the critical parameters of 7-position configuration, 0.200" pitch, horizontal board orientation, through-hole mounting, and M3 screw thread required for direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can OSTTA074163 be used as a direct replacement for ED120/7DS in existing designs?

A: Yes. OSTTA074163 is a direct equivalent with identical pitch (0.200"), position count (7), mounting orientation, and electrical ratings (15 A, 300 V). No PCB layout modifications are required.

Q: What are the key differences between ED120/7DS and 282841-7?

A: The primary differences are manufacturer (On Shore Technology vs. TE Connectivity), wire termination method (leaf spring vs. rising cage clamp), and enhanced electrical ratings on the 282841-7 (17.5 A vs. 15 A current, 12-30 AWG vs. 14-22 AWG wire gauge). All critical mechanical parameters (pitch, position count, mounting type, screw thread) remain identical.

Q: Are all substitute parts RoHS compliant?

A: ED120/7DS and OSTTA074163 are ROHS3 compliant. 282841-7 is RoHS compliant. All three parts meet RoHS requirements for lead-free applications.

Q: Can 282841-7 be used in applications designed for ED120/7DS?

A: Yes, provided the application does not require specific wire termination characteristics unique to the leaf spring design. The rising cage clamp termination on 282841-7 is functionally equivalent for wire-to-board connections. The enhanced current rating (17.5 A) and broader wire gauge range (12-30 AWG) make this part suitable for applications with higher current demands or non-standard wire gauges.

Q: What is the impact of different wire termination methods on PCB design?

A: Both leaf spring and rising cage clamp termination methods use M3 screw threads and maintain 0.200" pitch spacing. PCB footprints designed for ED120/7DS are compatible with both OSTTA074163 and 282841-7. Termination method differences do not affect PCB layout or mounting hole specifications.

Q: Are there inventory considerations when selecting a substitute?

A: Inventory levels vary by part number. ED120/7DS has 857 units in stock, OSTTA074163 has 21,469 units, and 282841-7 has 1,154 units. Substitute selection may be influenced by availability requirements and lead time considerations.

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