D3245 Telecom Relay DPDT 2A 9V Equivalent & Substitute Parts

Part Overview

The D3245 is a telecom-grade DPDT (Double Pole Double Throw) relay manufactured by TE Connectivity Potter & Brumfield Relays, designed for 9VDC coil operation with 2A contact rating. This component features a latching, single-coil configuration with through-hole PC pin termination and operates across an industrial temperature range of -40°C to 85°C.

The D3245 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this relay specification.

Substiute Parts

D3245

TE Connectivity Potter & Brumfield RelaysIn Stock: 1196D3245 Datasheet

Current PartRFQ

TXD2-L-9V

Panasonic Electric WorksIn Stock: 985TXD2-L-9V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D3245 are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Coil voltage: 9VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 2 A minimum
• Mounting type: Through Hole
• Termination style: PC Pin
• Coil type: Latching, Single Coil
• Must operate voltage: 6.75 VDC
• Operating temperature range: -40°C ~ 85°C minimum

The TXD2-L-9V from Panasonic Electric Works satisfies all critical electrical and mechanical parameters required for direct substitution with the D3245. Both relays operate at identical coil voltage, contact form, current rating, and mounting configuration. Functional compatibility is established through parameter equivalence.

Parameter Comparison

Engineering Selection Recommendations

The TXD2-L-9V is a direct functional equivalent to the D3245 for applications requiring 9VDC DPDT relay operation with 2A contact switching capability. Selection of the TXD2-L-9V provides the following advantages:

Product Status: The TXD2-L-9V maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete D3245.

Regulatory Compliance: The TXD2-L-9V is RoHS Compliant, meeting current environmental and regulatory requirements. The D3245 RoHS status is not specified.

Electrical Equivalence: Both relays operate at identical coil voltage (9VDC), contact form (DPDT), current rating (2A), and must-operate voltage (6.75VDC). Operating temperature ranges are identical (-40°C to 85°C).

Mechanical Compatibility: Both relays feature through-hole mounting with PC pin termination, enabling direct board-level substitution without redesign.

Operational Characteristics: Operate time is identical at 4 ms. Release time differs by 1 ms (D3245: 3 ms; TXD2-L-9V: 4 ms), which remains within typical application tolerances for telecom and general-purpose relay circuits.

Seal Rating: The TXD2-L-9V provides sealed, fully-enclosed construction, offering enhanced environmental protection compared to the D3245.

Frequently Asked Questions (FAQ)

Q: Can the TXD2-L-9V directly replace the D3245 in existing circuit designs?

A: Yes. Both relays meet identical electrical specifications for coil voltage (9VDC), contact form (DPDT), current rating (2A), and mounting configuration (through-hole PC pin). No circuit modifications are required for functional substitution.

Q: What is the significance of the coil current difference between the D3245 (11.1 mA) and TXD2-L-9V (16.7 mA)?

A: The TXD2-L-9V requires higher coil current due to its lower coil resistance (540 Ohms vs. 810 Ohms). This difference must be evaluated in the context of the driving circuit's current capacity. Both relays operate at the same 9VDC coil voltage and must-operate voltage (6.75VDC), ensuring compatibility with standard relay driver circuits.

Q: Does the 1 ms difference in release time (D3245: 3 ms vs. TXD2-L-9V: 4 ms) affect circuit performance?

A: Release time differences of 1 ms are typically insignificant in telecom and general-purpose relay applications. Applications with strict timing requirements below 1 ms should evaluate specific circuit behavior, though both relays maintain identical 4 ms operate time.

Q: What packaging differences exist between these relays?

A: The D3245 packaging is not specified in available documentation. The TXD2-L-9V is supplied in tube packaging. Both relays feature identical through-hole PC pin termination suitable for standard PCB assembly processes.

Q: Is the TXD2-L-9V suitable for applications originally designed for the D3245 telecom relay?

A: Yes. The TXD2-L-9V is classified as a general-purpose relay but meets all electrical and mechanical specifications required for telecom relay applications. The sealed, fully-enclosed construction of the TXD2-L-9V provides enhanced environmental protection suitable for telecom environments.

Q: What is the REACH and RoHS compliance status for substitution?

A: The D3245 carries REACH Unaffected status. The TXD2-L-9V is RoHS Compliant. For applications subject to RoHS requirements, the TXD2-L-9V is the appropriate selection.