TE Connectivity Potter & Brumfield Relay 1-1904020-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield Relay 1-1904020-5 is a general purpose SPDT (Single Pole Double Throw) relay with a 12VDC coil, rated for 30A contact current, and socketable mounting configuration. This relay operates across an industrial temperature range of -40°C to 125°C and features silver alloy contacts with quick connect termination.

The 1-1904020-5 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure continued availability, and support ongoing production or maintenance requirements where this relay is specified in existing designs.

Substiute Parts

1-1904020-5

TE Connectivity Potter & Brumfield RelaysIn Stock: 8661-1904020-5 Datasheet

Current PartRFQ

4-1414992-7

TE Connectivity Potter & Brumfield RelaysIn Stock: 8924-1414992-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-1904020-5 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Coil voltage: 12VDC
• Contact form: SPDT (1 Form C)
• Coil type: Non Latching
• Mounting type: Socketable
• Operating temperature range: -40°C ~ 125°C
• RoHS3 compliance

Secondary Compatibility Criteria:

• Contact rating current: minimum 30A
• Termination style: Quick Connect compatible
• Coil voltage operation: Must operate at 8VDC or lower, must release at 1.5VDC or lower

The substitute part 4-1414992-7 meets all primary compatibility criteria and exceeds the contact current rating at 40A, providing enhanced capacity for the same 12VDC coil voltage and socketable mounting configuration. Both parts maintain identical operating temperature ranges and RoHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 4-1414992-7 is the active substitute for the obsolete 1-1904020-5. Both relays are manufactured by TE Connectivity Potter & Brumfield Relays and maintain identical compliance certifications (ROHS3 Compliant, MSL 1).

Selection Basis:

The 4-1414992-7 provides functional equivalence with the following characteristics:

• Identical 12VDC coil voltage and SPDT contact form
• Socketable mounting configuration compatible with existing relay bases
• Contact current rating of 40A exceeds the original 30A specification
• Operating temperature range matches the original specification (-40°C ~ 125°C)
• Coil current (133 mA) is lower than the original (141.2 mA), reducing power consumption
• Must operate and release voltages are within acceptable operating margins

The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity. Both parts carry identical RoHS3 compliance and unlimited moisture sensitivity ratings, supporting equivalent environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 4-1414992-7 directly replace the 1-1904020-5 in existing applications?

A: The 4-1414992-7 is functionally equivalent for applications requiring 12VDC coil voltage, SPDT contact configuration, and socketable mounting. The substitute part operates within the same temperature range and maintains identical compliance certifications. The higher contact current rating (40A vs. 30A) provides additional capacity without reducing performance in existing 30A applications.

Q: What is the difference in contact material between these relays?

A: The 1-1904020-5 uses silver alloy contacts, while the 4-1414992-7 uses silver nickel (AgNi) contacts. Both materials are suitable for general purpose relay applications and provide equivalent electrical performance in standard switching applications.

Q: Are there differences in termination compatibility?

A: The 1-1904020-5 features Quick Connect - 0.187"/0.250" termination, while the 4-1414992-7 features Plug In, Quick Connect - 0.250" (6.3mm) termination. Both are quick connect style terminations. Physical compatibility with existing relay sockets must be verified based on the specific socket design used in the application.

Q: How do the coil current specifications compare?

A: The 1-1904020-5 draws 141.2 mA at 12VDC, while the 4-1414992-7 draws 133 mA at 12VDC. The substitute part requires slightly less coil current, resulting in lower power consumption and reduced heat generation in the coil circuit.

Q: What is the significance of the different release times?

A: The 1-1904020-5 has a release time of 7 ms, while the 4-1414992-7 has a release time of 2 ms. The faster release time of the substitute part does not affect compatibility in standard applications and may provide improved response characteristics in time-sensitive switching scenarios.

Q: Why is the original part classified as obsolete?

A: The 1-1904020-5 is no longer in active production. The 4-1414992-7 represents the current active equivalent from TE Connectivity Potter & Brumfield Relays, offering improved specifications and continued manufacturing support.

Q: Are both parts RoHS compliant?

A: Yes, both the 1-1904020-5 and 4-1414992-7 are ROHS3 Compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting identical environmental and regulatory requirements.