970-T-DS/03 Terminal Block Connector Equivalent & Substitute Parts

Part Overview

The 970-T-DS/03 is a 3-position wire-to-board terminal block connector manufactured by WECO Electrical Connectors Inc. This horizontal-mount through-hole component features screw-based wire termination with a 0.197" (5.00mm) pitch and is rated for 20 A at 300 V. The connector is designed for applications requiring reliable electrical connections in industrial and commercial equipment. As an active product with ROHS3 compliance, substitute parts may be required due to inventory availability, lead time constraints, or specific application requirements that demand alternative electrical or mechanical characteristics within compatible parameters.

Substiute Parts

970-T-DS/03

WECO Electrical Connectors Inc.In Stock: 1151970-T-DS/03 Datasheet

Current PartRFQ

282856-3

TE Connectivity AMP ConnectorsIn Stock: 17366282856-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 970-T-DS/03 with the TE Connectivity AMP Connectors 282856-3 is permissible based on the following critical parameters that remain within acceptable tolerances:

Matching Parameters:

• Positions per level: 3 (identical)
• Pitch: 0.197" (5.00mm) (identical)
• Mating orientation: Horizontal with board (identical)
• Mounting type: Through hole (identical)
• Voltage rating: 300 V (identical)
• Screw thread: M3 (identical)
• RoHS compliance: ROHS3 (identical)
• HTSUS classification: 8536.90.4000 (identical)
• ECCN classification: EAR99 (identical)

Variant Parameters (Within Acceptable Range):

• Current rating: 282856-3 rated at 24 A exceeds the 20 A requirement of 970-T-DS/03
• Wire gauge: 282856-3 accepts 12-30 AWG, which encompasses the 12-22 AWG range of 970-T-DS/03
• Wire termination method: Both use screw-based termination with different clamp designs (leaf spring versus rising cage clamp)

The 282856-3 substitute meets or exceeds all critical electrical and mechanical parameters required for direct substitution in applications designed for the 970-T-DS/03.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 970-T-DS/03

The 970-T-DS/03 remains the specified component for applications where the exact screw torque specification (0.51 Nm / 4.5 Lb-In) and leaf spring wire termination design are required. This part is active and ROHS3 compliant with REACH affected status.

Substitute Part: 282856-3

The TE Connectivity AMP Connectors 282856-3 (Buchanan series) is a direct functional substitute when inventory or lead time constraints prevent use of the primary part. This substitute provides:

• Higher current capacity (24 A versus 20 A), ensuring adequate margin for the application
• Extended wire gauge acceptance (12-30 AWG versus 12-22 AWG), providing flexibility in wire selection
• Identical electrical ratings (300 V) and mechanical interface (5.00mm pitch, M3 screw thread)
• ROHS3 compliance matching the primary part
• Active product status with established supply chain availability (17,275 pcs in stock)

The rising cage clamp termination method in the 282856-3 provides an alternative to the leaf spring design while maintaining screw-based connection reliability. Both parts are classified under identical ECCN (EAR99) and HTSUS (8536.90.4000) codes, supporting equivalent regulatory treatment.

Frequently Asked Questions (FAQ)

Q: Can the 282856-3 be used as a direct replacement for the 970-T-DS/03 in existing designs?

A: Yes. The 282856-3 meets all critical electrical and mechanical parameters. The 5.00mm pitch, through-hole mounting, M3 screw thread, and 300 V rating are identical. The higher current rating (24 A) and extended wire gauge range (12-30 AWG) provide additional capability without compromising compatibility.

Q: What is the difference between the wire termination methods?

A: The 970-T-DS/03 uses a leaf spring with wire guard design, while the 282856-3 uses a rising cage clamp. Both are screw-based termination systems. The rising cage clamp in the 282856-3 provides a different mechanical approach to securing the wire while maintaining electrical continuity and connection reliability.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and classified under the same ECCN (EAR99) and HTSUS (8536.90.4000) codes. The 970-T-DS/03 is REACH affected, while the 282856-3 has vendor-undefined REACH status. For applications subject to REACH regulations, the primary part specifications should be confirmed with the supplier.

Q: What is the screw torque specification for the 282856-3?

A: The 282856-3 requires 0.79 Nm (7.0 Lb-In) torque, which is higher than the 970-T-DS/03 specification of 0.51 Nm (4.5 Lb-In). This difference reflects the rising cage clamp design and should be observed during assembly.

Q: Can wires rated for 12-22 AWG be used with the 282856-3?

A: Yes. The 282856-3 accepts 12-30 AWG wire, which fully encompasses the 12-22 AWG range. Wires within the 12-22 AWG specification are fully compatible with the 282856-3 connector.

Q: What is the operating temperature range for the 282856-3?

A: The operating temperature range for the 282856-3 is not specified in the provided data. The 970-T-DS/03 operates from -40°C to 100°C. For applications requiring confirmed temperature specifications, the TE Connectivity technical documentation should be consulted.

Q: Are these parts available in different colors?

A: Yes. The 970-T-DS/03 is available in gray, while the 282856-3 is available in green. Color differences do not affect electrical or mechanical function and are typically cosmetic or for identification purposes.