TE Connectivity Potter & Brumfield Relays 1904002-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield Relays 1904002-2 is an automotive SPST-NO relay from the HCR 75 series, rated for 50A at 24VDC switching voltage. This relay is classified as obsolete, necessitating identification of equivalent substitute components for continued system support and procurement planning. The part features non-latching coil operation, chassis mount configuration, and screw terminal with quick connect termination suitable for automotive applications.

Substiute Parts

1904002-2

TE Connectivity Potter & Brumfield RelaysIn Stock: 10081904002-2 Datasheet

Current PartRFQ

2-1414939-2

TE Connectivity Potter & Brumfield RelaysIn Stock: 9172-1414939-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1904002-2 relay is based on the following critical electrical and mechanical parameters:

Contact Configuration: Both the main part and substitute maintain SPST-NO (1 Form A) contact form, ensuring identical switching logic and circuit integration.

Coil Type: Non-latching operation is preserved across all substitute candidates, maintaining consistent relay behavior in automotive control circuits.

Mounting and Termination: Chassis mount configuration is retained. However, termination style differs between the main part (screw terminal with quick connect) and the substitute (stud termination), requiring mechanical interface evaluation during integration.

Operating Temperature Range: Both parts operate across -40°C to 125°C, ensuring thermal compatibility in automotive environments.

Moisture Sensitivity: MSL rating of 1 (Unlimited) is maintained, indicating no moisture-related handling restrictions.

Voltage and Current Ratings: The substitute part operates at 12VDC coil voltage with 130A contact rating, representing a different electrical specification class. This substitution is valid only in applications where the 12VDC supply and 130A current capacity are compatible with the circuit design.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity Potter & Brumfield Relays 2-1414939-2 is an active product substitute for the obsolete 1904002-2. Selection of this substitute requires verification of circuit compatibility with the following considerations:

Voltage Supply Compatibility: The substitute operates at 12VDC coil voltage, whereas the main part operates at 24VDC. Circuit power supply architecture must support 12VDC operation.

Current Capacity: The substitute provides 130A contact rating compared to the main part's 50A rating. This increased capacity is suitable for applications requiring higher current switching capability.

Termination Interface: The substitute uses stud termination instead of screw terminal with quick connect. Mechanical interface redesign is required for installation.

Product Status: The substitute is active and currently in production, ensuring long-term availability and supply chain continuity. The main part is obsolete and subject to inventory depletion.

Compliance: The substitute is ROHS3 compliant, meeting current environmental and regulatory standards. Both parts carry EAR99 export classification.

Thermal Performance: Both parts maintain identical operating temperature range (-40°C to 125°C), ensuring thermal compatibility in automotive environments.

Frequently Asked Questions (FAQ)

Q: Can the 2-1414939-2 substitute directly replace the 1904002-2 without circuit modification?

A: Direct replacement requires circuit compatibility verification. The substitute operates at 12VDC coil voltage versus the main part's 24VDC, necessitating power supply compatibility assessment. Termination style differs (stud versus screw terminal with quick connect), requiring mechanical interface evaluation.

Q: What is the primary reason for substitution?

A: The 1904002-2 is classified as obsolete. The 2-1414939-2 is an active product from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are the contact configurations identical?

A: Yes. Both parts feature SPST-NO (1 Form A) contact configuration, maintaining identical switching logic and circuit integration.

Q: How do the current ratings compare?

A: The main part is rated for 50A contact current. The substitute is rated for 130A contact current, providing increased switching capacity suitable for higher-current applications.

Q: What are the operating temperature specifications?

A: Both parts operate across -40°C to 125°C, ensuring thermal compatibility in automotive environments.

Q: Are there moisture sensitivity considerations?

A: Both parts carry MSL rating of 1 (Unlimited), indicating no moisture-related handling restrictions during storage or assembly.

Q: What compliance certifications apply to the substitute?

A: The substitute is ROHS3 compliant and carries EAR99 export classification. Both parts share the same export classification.

Q: What is the packaging difference?

A: The main part packaging is listed as dash (-). The substitute is supplied in bulk packaging.