Phoenix Contact REL-MR-12DC/21/MS General Purpose Relay SPDT

Part Overview

The Phoenix Contact REL-MR-12DC/21/MS (Manufacturer Part Number: 2909641) is a general purpose relay with SPDT (Single Pole Double Throw) contact configuration, designed for 12VDC coil operation in through-hole mounting applications. This relay is classified as Active product status and is suitable for industrial control and switching applications requiring 6A contact rating at 250VAC or 250VDC maximum switching voltage.

Equivalent and substitute parts are identified to provide design flexibility, ensure supply chain continuity, and support component selection based on inventory availability and application requirements.

Substiute Parts

2909641

Phoenix ContactIn Stock: 7412909641 Datasheet

Current PartRFQ

2961150

Phoenix ContactIn Stock: 24592961150 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REL-MR-12DC/21/MS are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Critical Parameters for Substitution:

• Coil Voltage: 12VDC
• Contact Form: SPDT (1 Form C)
• Contact Rating (Current): 6 A
• Switching Voltage: 250VAC, 250VDC - Max
• Coil Current: 14 mA
• Coil Type: Non Latching
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Operating Temperature Range: -40°C ~ 85°C
• Contact Material: Silver Tin Oxide (AgSnO)
• Coil Resistance: 848 Ohms

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes within the REL-MR series.

Parameter Comparison

Engineering Selection Recommendations

Both the main part (2909641) and the substitute part (2961150) are classified as Active product status from Phoenix Contact, indicating ongoing manufacturing and support. The substitute part 2961150 demonstrates full parametric equivalence across all electrical and mechanical specifications.

Selection between these parts should be based on:

Inventory Availability: The main part 2909641 has 716 pieces in stock, while substitute part 2961150 has 2400 pieces available. Higher inventory levels may support extended lead time requirements or volume procurement.

Compliance and Certifications: Substitute part 2961150 includes documented RoHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status. These certifications support applications requiring regulatory compliance documentation.

Series Consistency: Both parts belong to the REL-MR series, ensuring design consistency within relay-based control circuits.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact part number 2961150 be used as a direct replacement for 2909641?

A: Yes. Part 2961150 is a parametric equivalent with identical electrical and mechanical specifications, including coil voltage, contact configuration, current rating, switching voltage, timing characteristics, and operating temperature range. Both parts are through-hole mounted with PC pin termination and use Silver Tin Oxide contact material.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: 12VDC coil voltage, SPDT (1 Form C) contact form, 6A contact rating, 250VAC/250VDC maximum switching voltage, 14mA coil current, non-latching coil type, through-hole mounting, PC pin termination, 5ms operate time, 2.5ms release time, -40°C to 85°C operating temperature, Silver Tin Oxide contact material, and 848 Ohms coil resistance.

Q: Are there packaging differences between the main part and substitute?

A: Both parts are supplied in Bulk packaging. No packaging format differences exist between 2909641 and 2961150.

Q: What compliance certifications apply to the substitute part?

A: Substitute part 2961150 is RoHS3 compliant, classified as MSL Level 1 (Unlimited moisture sensitivity), and REACH Unaffected. The main part 2909641 carries EAR99 ECCN and 8536.41.0020 HTSUS classification, which also applies to the substitute.

Q: Are both parts suitable for industrial control applications?

A: Yes. Both parts are general purpose relays designed for industrial switching and control applications. The 6A contact rating at 250VAC/250VDC, combined with 12VDC coil operation and -40°C to 85°C operating range, supports standard industrial control circuit requirements.