TE Connectivity Potter & Brumfield Relays 3-1904022-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield Relays 3-1904022-2 is a general purpose relay with SPDT (Single Pole Double Throw) contact configuration rated for 30A at 12VDC. This chassis mount relay operates with a 12VDC coil and features quick connect termination suitable for industrial control, switching, and automation applications. The part maintains Active product status with 1076 units in current inventory stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments.

Substiute Parts

3-1904022-2

TE Connectivity Potter & Brumfield RelaysIn Stock: 11703-1904022-2 Datasheet

Current PartRFQ

3-1904022-2

TE Connectivity Potter & Brumfield RelaysIn Stock: 11703-1904022-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity Potter & Brumfield Relays 3-1904022-2 is determined by strict alignment across the following critical electrical and mechanical parameters:

Electrical Parameters:

• Coil voltage: 12VDC
• Contact form: SPDT (1 Form C)
• Contact rating: 30 A minimum
• Switching voltage: 12VDC nominal
• Coil current: 141.2 mA
• Coil resistance: 85 Ohms
• Must operate voltage: 8 VDC minimum
• Must release voltage: 1.5 VDC maximum
• Operate time: 7 ms
• Release time: 2 ms

Mechanical Parameters:

• Mounting type: Chassis Mount
• Termination style: Quick Connect - 0.187"/0.250"
• Contact material: Silver Alloy
• Coil type: Non Latching

Environmental & Compliance Parameters:

• Operating temperature range: -40°C ~ 105°C
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

Parts meeting all specified parameters within these categories qualify as direct substitutes for the 3-1904022-2.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity Potter & Brumfield Relays 3-1904022-2 maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Selection of equivalent parts should prioritize components with identical Active status to ensure long-term supply chain stability and manufacturing support.

All substitute parts must maintain ROHS3 compliance to satisfy regulatory requirements in regulated industries and export markets. The unlimited MSL rating permits direct substitution with parts carrying the same MSL classification without additional moisture control measures during storage or assembly.

Chassis mount configuration with quick connect termination (0.187"/0.250") establishes fixed mechanical compatibility requirements. Substitute parts must maintain identical mounting geometry and termination interface to ensure drop-in compatibility within existing circuit board layouts and connector assemblies.

The 12VDC coil voltage, 30A contact rating, and SPDT contact form define the functional switching capability. Substitute parts must match these specifications exactly to maintain circuit performance, load handling capacity, and control signal compatibility.

Frequently Asked Questions (FAQ)

Q: What defines a direct substitute for the 3-1904022-2?

A: A direct substitute must match all electrical parameters (12VDC coil, 30A contact rating, SPDT form, 85 Ohm coil resistance, 141.2 mA coil current), mechanical parameters (chassis mount, quick connect 0.187"/0.250" termination), and environmental specifications (operating temperature -40°C to 105°C, RoHS3 compliance, MSL 1). The part must maintain Active product status.

Q: Can I substitute a relay with different coil voltage?

A: No. The 12VDC coil voltage is a critical electrical parameter. Substitution with different coil voltages will result in improper relay operation, failure to energize, or circuit malfunction. The coil voltage must match exactly.

Q: Are there compatibility concerns with the quick connect termination?

A: The quick connect termination style (0.187"/0.250") is a fixed mechanical interface. Substitute parts must use identical termination geometry to ensure proper mating with existing connectors and circuit board receptacles. Termination style changes require circuit redesign.

Q: Does the operating temperature range affect substitution?

A: Yes. The -40°C to 105°C operating temperature range is a critical environmental specification. Substitute parts must support the full temperature range to maintain relay performance across all operating conditions. Parts with narrower temperature ranges are not compatible.

Q: What is the significance of the 30A contact rating?

A: The 30A contact rating defines the maximum continuous current the relay contacts can safely switch. Substitute parts must maintain this 30A minimum rating to handle the intended load current. Lower-rated contacts will overheat and fail under specified load conditions.

Q: How does the SPDT contact form affect substitution?

A: SPDT (Single Pole Double Throw) is a specific contact configuration with one common terminal and two switched positions. This form determines circuit switching logic and control functionality. Substitute parts must maintain identical SPDT configuration. Different contact forms (SPST, DPDT) are not compatible.

Q: Is RoHS3 compliance mandatory for substitution?

A: Yes. RoHS3 compliance is a regulatory requirement for components used in regulated industries and export markets. Substitute parts must maintain ROHS3 compliance status to satisfy procurement and manufacturing standards.

Q: What does MSL 1 (Unlimited) mean for component storage?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life without moisture control measures. Substitute parts with identical MSL 1 rating require no special storage conditions. Parts with higher MSL ratings require controlled humidity storage and may have limited shelf life.

Q: Can I use a substitute part with different coil current specifications?

A: No. The 141.2 mA coil current is determined by the 85 Ohm coil resistance at 12VDC. Substitute parts must match this coil current specification exactly. Different coil currents indicate different coil designs and will produce incorrect relay operation.

Q: How do operate and release times affect substitution?

A: Operate time (7 ms) and release time (2 ms) define the relay's switching speed. These timing parameters are critical for control circuit synchronization and response requirements. Substitute parts must match these timing specifications exactly to maintain circuit performance.