Weidmüller 7940116973 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Weidmüller 7940116973 is a 4-position wire-to-board terminal block with 45° mating orientation and 0.200" (5.08mm) pitch spacing. This component is part of the Omnimate LP series and is designed for through-hole PCB mounting applications requiring screw-clamping wire termination. The part is currently active in production with 1127 units in stock. Alternative models may be required due to inventory constraints, specific mating angle requirements, or application-specific current and voltage demands.

Substiute Parts

7940116973

WeidmüllerIn Stock: 11667940116973 Datasheet

Current PartRFQ

282847-4

TE Connectivity AMP ConnectorsIn Stock: 2369282847-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 7940116973 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Positions Per Level: 4
• Pitch: 0.200" (5.08mm)
• Mounting Type: Through Hole
• Voltage Rating: 300 V (minimum)
• Screw Thread: M3

Allowable Variation Parameters:

• Mating Orientation: 45° (135°) to 35° (145°) — minor angle variation acceptable for board-level routing flexibility
• Current Rating: 15 A minimum (higher ratings acceptable)
• Wire Gauge: 12-26 AWG to 12-30 AWG — expanded range acceptable
• Wire Termination: Screw-based mechanisms (Clamping Yoke or Rising Cage Clamp)
• Contact Material Plating: Copper Alloy or Brass with Tin or Nickel plating
• Housing Material: Polyamide (PA66), Nylon 6/6

The TE Connectivity AMP Connectors 282847-4 meets all mandatory parameters and falls within allowable variation ranges for mating orientation, current capacity, and wire gauge compatibility.

Parameter Comparison

Engineering Selection Recommendations

Weidmüller 7940116973 is the primary choice when:

• Exact 45° mating angle is required for PCB layout
• Operating temperature range of -20°C to 100°C must be guaranteed
• Clamping Yoke with Tension Sleeve termination mechanism is specified
• Copper Alloy contact material is preferred for specific application requirements
• RoHS Compliant (original standard) certification is sufficient

TE Connectivity 282847-4 is an acceptable substitute when:

• 35° mating angle is compatible with board design (10° variation from original)
• Higher current capacity (17.5 A vs. 15 A) provides design margin
• Expanded wire gauge acceptance (12-30 AWG vs. 12-26 AWG) accommodates broader wire specifications
• Rising Cage Clamp termination mechanism is acceptable for the application
• ROHS3 Compliant certification meets regulatory requirements
• Interlocking side feature provides additional mechanical stability

Both parts share identical pitch spacing, mounting type, voltage rating, screw thread specification, and housing material, ensuring PCB footprint compatibility and electrical performance equivalence within stated parameters.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 282847-4 be used as a direct replacement for the Weidmüller 7940116973?

A: Yes, with consideration for mating angle difference. The TE part has a 35° mating angle versus the Weidmüller's 45° angle. Both are angled connectors with identical pitch (5.08mm), mounting type (through hole), and electrical ratings (300V). PCB layout must accommodate the 10° angle variation. The TE part's higher current rating (17.5 A) and expanded wire gauge range (12-30 AWG) make it functionally compatible.

Q: Are the wire termination mechanisms interchangeable?

A: Both parts use screw-based termination but employ different clamp designs. The Weidmüller uses Clamping Yoke with Tension Sleeve; the TE part uses Rising Cage Clamp. Both mechanisms provide secure wire retention with M3 screw threads. Torque specifications differ (Weidmüller: 0.5-0.6 Nm; TE: 0.79 Nm), so assembly procedures should follow the specific manufacturer's guidelines.

Q: What is the impact of the contact material difference?

A: Weidmüller uses Copper Alloy with Tin plating; TE uses Brass with Tin plating. Both materials provide adequate electrical conductivity and corrosion resistance for 300V, 15-17.5A applications. Material selection should be verified against specific environmental conditions and application requirements.

Q: Does the TE part's interlocking side feature affect compatibility?

A: The interlocking side feature on the TE Connectivity 282847-4 provides additional mechanical stability during assembly and operation. This feature does not negatively impact compatibility; it enhances mechanical robustness without affecting electrical performance or PCB footprint.

Q: Are both parts RoHS compliant?

A: Yes. The Weidmüller 7940116973 is RoHS Compliant. The TE Connectivity 282847-4 is ROHS3 Compliant, which represents a newer revision of the RoHS standard. Both meet current regulatory requirements for restricted substance elimination.

Q: What inventory considerations should be evaluated?

A: Weidmüller 7940116973 has 1127 units in stock. TE Connectivity 282847-4 has 2349 units in stock. Substitute selection may be influenced by delivery timeline and project volume requirements.