D3206 Telecom Relay DPDT 2A 3V Equivalent & Substitute Parts

Part Overview

The D3206 is a telecom-grade DPDT relay manufactured by TE Connectivity Potter & Brumfield Relays, designed for switching applications requiring 2A contact rating at 3VDC coil voltage. This component features through-hole mounting with PC pin termination and operates across the industrial temperature range of -40°C to 85°C.

The D3206 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this relay is specified or functionally required.

Substiute Parts

D3206

TE Connectivity Potter & Brumfield RelaysIn Stock: 828D3206 Datasheet

Current PartRFQ

TXD2-3V

Panasonic Electric WorksIn Stock: 8815TXD2-3V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D3206 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 3VDC
• Contact Form: DPDT (2 Form C)
• Contact Rating (Current): 2 A
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Operating Temperature Range: -40°C ~ 85°C
• Coil Type: Non Latching

Acceptable Variation Parameters:

• Switching Voltage: Substitute must meet or exceed the maximum switching voltage requirement
• Coil Current: Variation permitted within design tolerance
• Coil Resistance: Variation permitted based on coil design
• Operate/Release Time: Variation permitted within application requirements
• Contact Material: Variation permitted provided contact rating is maintained
• Seal Rating: Enhanced sealing is acceptable
• Product Status: Active status preferred for ongoing availability

The TXD2-3V from Panasonic Electric Works meets all mandatory matching parameters and qualifies as a direct substitute for the D3206.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TXD2-3V (Panasonic Electric Works)

The TXD2-3V is the qualified substitute for the D3206. Selection rationale is based on the following factors:

Functional Equivalence: The TXD2-3V matches all mandatory electrical and mechanical parameters required for direct substitution. Coil voltage, contact form, current rating, mounting configuration, and termination style are identical.

Product Status: The TXD2-3V is classified as Active, ensuring ongoing availability and supply chain continuity. The D3206 is obsolete, making the TXD2-3V the appropriate long-term solution.

Compliance and Certifications: Both components share identical ECCN (EAR99) and HTSUS (8536.41.0020) classifications. The TXD2-3V carries RoHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements.

Enhanced Features: The TXD2-3V provides fully sealed construction, offering improved environmental protection compared to the D3206. This enhancement does not compromise compatibility and provides additional robustness for field applications.

Parameter Variations: The TXD2-3V exhibits acceptable variations in coil current (66.7 mA vs. 46.7 mA), coil resistance (45 Ohms vs. 64 Ohms), and release time (4 ms vs. 3 ms). These variations remain within acceptable engineering tolerances for DPDT relay applications and do not affect functional compatibility in standard switching circuits.

Frequently Asked Questions (FAQ)

Q: Can the TXD2-3V directly replace the D3206 in existing circuit designs?

A: Yes. The TXD2-3V meets all mandatory electrical and mechanical specifications for direct substitution. Identical coil voltage, contact form, current rating, mounting type, and termination style ensure functional compatibility without circuit modification.

Q: What is the significance of the higher coil current in the TXD2-3V (66.7 mA vs. 46.7 mA)?

A: The coil current difference reflects design variations between manufacturers. The TXD2-3V requires slightly higher drive current but maintains the same 3VDC coil voltage. Circuit designs must verify that the coil drive circuit can supply the required 66.7 mA. This is a standard engineering consideration during component substitution.

Q: Are there differences in switching voltage capability between these relays?

A: The D3206 specifies 250VAC and 220VDC maximum switching voltage. The TXD2-3V specifies 220VDC maximum. For applications requiring 250VAC switching, the D3206 specification is more permissive. However, for standard 220VDC or lower voltage switching applications, the TXD2-3V is fully compatible.

Q: What does "Sealed - Fully" mean for the TXD2-3V?

A: Full sealing indicates the relay contacts and internal mechanism are enclosed to prevent contamination from dust, moisture, and other environmental factors. This is an enhancement over the D3206 and provides improved reliability in harsh environments without affecting electrical compatibility.

Q: Is the TXD2-3V available in the same packaging as the D3206?

A: The TXD2-3V is supplied in Tube packaging. Both components use through-hole mounting with PC pin termination, ensuring mechanical compatibility on printed circuit boards. Packaging format does not affect circuit board integration.

Q: What is the impact of the 1 ms longer release time in the TXD2-3V?

A: The TXD2-3V has a 4 ms release time compared to the D3206's 3 ms release time. This 1 ms difference is negligible for most telecom and general-purpose switching applications. Applications with strict timing requirements below 1 ms should evaluate this parameter against specific circuit requirements.

Q: Are both relays compliant with current regulatory standards?

A: The TXD2-3V carries RoHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. Both components share identical ECCN and HTSUS classifications. The TXD2-3V is the preferred choice for new designs and applications requiring modern compliance documentation.

Q: Can the TXD2-3V be used in telecom applications originally designed for the D3206?

A: Yes. The TXD2-3V is classified as a general-purpose relay but meets all electrical specifications required for telecom switching applications. The functional equivalence across all critical parameters supports use in telecom circuit designs.