Würth Elektronik 61300611821 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 61300611821 is a 6-position receptacle connector from the WR-PHD series, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This through-hole mounted connector features gold-plated contacts, solder termination, and push-pull fastening. The component is actively produced and stocked with 1,271 units available. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, design flexibility, or supply chain considerations.

Substiute Parts

61300611821

Würth ElektronikIn Stock: 135061300611821 Datasheet

Current PartRFQ

5-534237-4

TE Connectivity AMP ConnectorsIn Stock: 75685-534237-4 Datasheet

DirectRFQ

RS1-06-G

Adam TechIn Stock: 3812RS1-06-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 61300611821 are qualified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Connector type: Receptacle
• Number of positions: 6
• Mating pitch: 0.100" (2.54mm)
• Mounting type: Through hole
• Termination method: Solder
• Fastening type: Push-pull
• Contact finish at mating interface: Gold
• Insulation color: Black
• Material flammability rating: UL94 V-0

Secondary Compatibility Parameters:

• Current rating: 3A minimum
• Voltage rating: 250VAC minimum
• Operating temperature range: -40°C to 125°C minimum
• Insulation height: 0.335" (8.50mm) ±0.015"

The identified substitutes meet these core electrical and mechanical requirements, enabling direct replacement in board-to-board connector applications without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

61300611821 (Würth Elektronik WR-PHD)

Primary selection for applications requiring the full 3A current rating and 250VAC voltage specification. ROHS3 compliant with active production status. Recommended for designs with strict thermal requirements up to 125°C continuous operation.

5-534237-4 (TE Connectivity AMPMODU Mod IV)

Direct substitute for applications where 2A current rating is sufficient. Offers extended operating temperature range (-65°C to 125°C) for low-temperature environments. RoHS compliant with highest inventory availability (7,531 units). Contact finish thickness at mating interface specified at 30.0µin (0.76µm). Insulation material differs (polyester, glass-filled versus polybutylene terephthalate).

RS1-06-G (Adam Tech RS1)

Equivalent substitute matching the 3A current rating and 250VAC voltage specification of the primary part. ROHS3 compliant with active production status. Operating temperature range limited to -40°C to 105°C. Insulation height and contact post length specifications closely align with the primary part. Suitable for standard industrial applications within the specified temperature range.

All three connectors maintain UL94 V-0 flammability rating and are actively produced. Selection between substitutes depends on current rating requirements, temperature operating range, and packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can the 5-534237-4 substitute for the 61300611821 in all applications?

A: The 5-534237-4 is functionally compatible for applications requiring 2A or less. Applications demanding the full 3A current rating of the 61300611821 require verification that circuit current does not exceed 2A. The 5-534237-4 operates across a wider temperature range (-65°C to 125°C) compared to the 61300611821 (-40°C to 125°C).

Q: What are the physical differences between these connectors?

A: Insulation height varies slightly: 61300611821 at 0.335" (8.50mm), 5-534237-4 at 0.340" (8.64mm), and RS1-06-G at 0.335" (8.51mm). Contact post length differs: 61300611821 at 0.122" (3.10mm), 5-534237-4 at 0.115" (2.92mm), and RS1-06-G at 0.118" (3.00mm). These variations remain within typical PCB design tolerances for 2.54mm pitch connectors.

Q: Are all three parts RoHS compliant?

A: Yes. The 61300611821 and RS1-06-G are ROHS3 compliant. The 5-534237-4 is RoHS compliant. All three meet regulatory requirements for restricted substance elimination.

Q: What packaging formats are available?

A: The 61300611821 is supplied in trays (1,271 units available). The 5-534237-4 is supplied in tubes (7,531 units available). The RS1-06-G is supplied in boxes (3,704 units available). Packaging selection depends on assembly process requirements and inventory management.

Q: Do these connectors have different contact materials?

A: Yes. The 61300611821 uses copper alloy contacts with gold finish. The 5-534237-4 uses phosphor bronze contacts with gold mating finish and tin post finish. The RS1-06-G uses brass contacts with gold finish. All maintain gold plating at the mating interface for consistent electrical performance.

Q: What is the voltage rating difference between the 61300611821 and 5-534237-4?

A: The 61300611821 is rated for 250VAC. The 5-534237-4 voltage rating is not specified in the technical data. Applications requiring explicit 250VAC rating should use the 61300611821 or RS1-06-G.

Q: Can these connectors be used interchangeably on existing PCBs?

A: Yes, for board-to-board applications. All three connectors share identical 0.100" (2.54mm) pitch spacing, 6-position configuration, through-hole mounting, and solder termination. Minor variations in insulation height and contact post length remain within standard PCB design tolerances for this connector class.