TE Connectivity Potter & Brumfield C93450 Telecom Relay DPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield C93450 is a telecom-grade DPDT (Double Pole Double Throw) relay with 2 Form C contacts rated for 2A switching capacity at 5VDC coil voltage. This through-hole mounted relay is designed for telecommunications applications requiring non-latching relay operation with fast switching response times.

The C93450 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

C93450

TE Connectivity Potter & Brumfield RelaysIn Stock: 928C93450 Datasheet

Current PartRFQ

C93450

TE Connectivity Potter & Brumfield RelaysIn Stock: 928C93450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C93450 telecom relay is determined by strict equivalence across the following critical parameters:

Electrical Characteristics:

• Coil voltage: 5VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 2A minimum
• Switching voltage capability: 250VAC, 220VDC maximum
• Coil current: 110 mA
• Coil resistance: 45 Ohms
• Non-latching coil type
• Must operate voltage: 3.3 VDC minimum
• Must release voltage: 0.5 VDC maximum
• Operate time: 5 ms
• Release time: 3 ms

Mechanical Characteristics:

• Mounting type: Through Hole
• Termination style: PC Pin
• Contact material: Silver Nickel (AgNi) and Gold (Au)

Environmental & Compliance:

• Operating temperature range: -55°C to 85°C
• RoHS compliance required
• Moisture sensitivity level: 1 (Unlimited)

A substitute part must match all electrical specifications, mechanical mounting requirements, and environmental operating parameters. Deviations in any critical parameter disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The C93450 is classified as an obsolete product. The parametric equivalent identified in this reference maintains full electrical, mechanical, and environmental specification alignment with the original part.

Compliance Considerations:

• Both the main part and parametric equivalent carry RoHS Compliant certification, ensuring regulatory compliance for new designs and legacy system replacements.
• Moisture Sensitivity Level 1 (Unlimited) indicates no moisture sensitivity constraints during storage, handling, or deployment.

Product Status Impact:

• The obsolete status of the C93450 necessitates identification of equivalent alternatives for ongoing supply chain management.
• The parametric equivalent provides direct functional replacement capability without design modification.

Application Continuity:

• Telecom relay applications requiring DPDT switching with 2A contact rating and 5VDC coil operation can utilize the identified equivalent without circuit redesign.
• Through-hole PC pin termination ensures compatibility with existing PCB layouts designed for the original C93450.

Frequently Asked Questions (FAQ)

Q: What makes a part a true equivalent to the C93450?

A: A true equivalent must match all critical electrical parameters (5VDC coil voltage, DPDT contact form, 2A contact rating, 110 mA coil current, 45 Ohm coil resistance), mechanical specifications (through-hole mounting, PC pin termination), and environmental operating range (-55°C to 85°C). Any deviation in these parameters disqualifies a part from direct substitution.

Q: Can I use a relay with higher current rating as a substitute?

A: A relay with a contact rating higher than 2A can function in applications designed for the C93450, provided all other electrical and mechanical parameters remain identical. However, this represents an upgrade rather than a direct equivalent substitution.

Q: Does the C93450 require special handling during storage?

A: No. The Moisture Sensitivity Level 1 (Unlimited) rating indicates the C93450 has no moisture sensitivity constraints. Standard component storage practices are sufficient.

Q: Are there any temperature derating considerations for the C93450?

A: The C93450 operates across the temperature range -55°C to 85°C. Applications requiring operation at the extremes of this range should reference the manufacturer's detailed specifications for any performance derating curves.

Q: What is the significance of the Silver Nickel and Gold contact material?

A: The dual contact material composition (Silver Nickel with Gold plating) provides corrosion resistance and reliable contact performance across the specified switching voltage range (250VAC, 220VDC maximum). This material selection is standard for telecom-grade relays.

Q: Can the C93450 be used in latching applications?

A: No. The C93450 is specified as a non-latching relay. It requires continuous coil energization to maintain contact closure. Latching applications require a different relay type.

Q: What is the coil resistance significance for circuit design?

A: The 45 Ohm coil resistance, combined with the 110 mA coil current specification, determines the power dissipation and drive circuit requirements. At 5VDC, the coil dissipates approximately 0.55 watts during energization.