Weidmüller 995037 18-Position Terminal Block Equivalent & Substitute Parts

Part Overview

The Weidmüller 995037 is an 18-position wire-to-board terminal block with 0.197" (5.00mm) pitch, designed for horizontal mounting through PCB holes. This component features screw-clamping wire termination with side interlocking and operates at 15 A, 300 V across an operating temperature range of -20°C to 100°C. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 18-position, 5mm pitch terminal block solutions.

Key Parameters

Parameter	Value
Positions Per Level	18
Pitch	0.197" (5.00mm)
Mating Orientation	Horizontal with Board
Mounting Type	Through Hole
Voltage Rating	300 V
Wire Gauge Range	12-26 AWG
Screw Thread	M3
Features	Interlocking (Side)

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 995037 is determined by strict alignment with the following core parameters:

18 positions per level (fixed requirement)
0.197" (5.00mm) pitch (fixed requirement)
Horizontal with board mating orientation (fixed requirement)
Through-hole mounting (fixed requirement)
300 V voltage rating (minimum requirement)
M3 screw thread (fixed requirement)
Side interlocking feature (fixed requirement)

The identified substitute parts—TE Connectivity AMP Connectors 1-282856-8 and Eaton Electronics EM258518V—meet all core dimensional and electrical compatibility criteria. Variations in current rating, wire gauge acceptance, wire termination mechanism, and material specifications represent acceptable engineering tolerances within the terminal block category and do not preclude functional substitution in applications matching the main part's electrical and mechanical envelope.

Parameter Comparison

Parameter	Weidmüller 995037	TE Connectivity 1-282856-8	Eaton EM258518V
Manufacturer	Weidmüller	TE Connectivity AMP Connectors	Eaton - Electronics Division
Positions Per Level	18	18	18
Pitch	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Mating Orientation	Horizontal with Board	Horizontal with Board	Horizontal with Board
Mounting Type	Through Hole	Through Hole	Through Hole
Current Rating	15 A	24 A	16 A
Voltage Rating	300 V	300 V	300 V
Wire Gauge	12-26 AWG	12-30 AWG	12-26 AWG
Wire Termination	Screw - Clamping Yoke, Tension Sleeve	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp
Screw Thread	M3	M3	M3
Torque - Screw	0.5-0.6 Nm (4.4-5.3 Lb-In)	0.79 Nm (7.0 Lb-In)	0.79 Nm (7.0 Lb-In)
Housing Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Thermoplastic
Operating Temperature	-20°C ~ 100°C	Not specified	-40°C ~ 105°C
Product Status	Obsolete	Active	Active
RoHS Status	Not applicable	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

TE Connectivity 1-282856-8 is the preferred substitute for new designs and production transitions. This part maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The higher current rating (24 A) and extended wire gauge acceptance (12-30 AWG) provide design margin for applications within the 15 A specification of the original part. Rising cage clamp termination offers equivalent screw-based connection reliability.

Eaton EM258518V serves as a secondary substitute option, particularly for applications requiring extended operating temperature range (-40°C to 105°C). This part is active and maintains the original wire gauge specification (12-26 AWG). RoHS non-compliance status requires evaluation against project regulatory requirements before selection.

Both substitutes are mechanically and electrically compatible with PCB layouts designed for the Weidmüller 995037, provided that screw torque specifications are observed during assembly.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity 1-282856-8 directly replace Weidmüller 995037 in existing PCB designs?

A: Yes. Both parts share identical pitch (5.00mm), position count (18), mounting type (through-hole), and screw thread (M3). PCB footprints are compatible without modification.

Q: What is the significance of the different wire termination mechanisms (clamping yoke vs. rising cage clamp)?

A: Both mechanisms provide screw-based wire clamping and are functionally equivalent for electrical connection. Rising cage clamp design (TE and Eaton parts) offers simplified wire insertion. Screw torque specifications must be observed for each part type during assembly.

Q: Does the higher current rating of TE Connectivity 1-282856-8 (24 A vs. 15 A) affect compatibility?

A: No. Higher current rating indicates greater capacity and does not affect compatibility with applications designed for 15 A operation. The part remains suitable for the original application envelope.

Q: Are there temperature range limitations when substituting with Eaton EM258518V?

A: The Eaton part operates across -40°C to 105°C, which exceeds the original Weidmüller specification (-20°C to 100°C). Applications within the original temperature range are fully compatible. Applications requiring operation below -20°C or above 100°C must evaluate the extended range capability.

Q: What compliance considerations apply to RoHS status differences?

A: TE Connectivity 1-282856-8 is ROHS3 compliant, meeting current EU and international regulatory requirements. Eaton EM258518V is RoHS non-compliant and requires regulatory assessment for projects with mandatory RoHS compliance requirements.

Q: Is wire gauge compatibility a concern when substituting parts?

A: TE Connectivity 1-282856-8 accepts 12-30 AWG wire, which encompasses the original 12-26 AWG specification. Eaton EM258518V matches the original 12-26 AWG range. Both are compatible with existing wire specifications.

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