TXD2SS-L-12V Equivalent & Substitute Parts

Part Overview

The TXD2SS-L-12V is a general purpose relay manufactured by Panasonic Electric Works, featuring DPDT (2 Form C) contact configuration with 2A contact rating and 12VDC coil voltage. This surface mount component is designed for general switching applications requiring sealed, fully protected operation across industrial temperature ranges. The part is currently active in production with 976 pieces available in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement in circuit applications, particularly when coil voltage requirements differ or when alternative sourcing is necessary.

Substiute Parts

TXD2SS-L-12V

Panasonic Electric WorksIn Stock: 1040TXD2SS-L-12V Datasheet

Current PartRFQ

TX2SA-L-3V

Panasonic Electric WorksIn Stock: 1185TX2SA-L-3V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TXD2SS-L-12V is determined by the following critical parameters that must remain constant or compatible:

Fixed Parameters (Must Match):

• Contact Form: DPDT (2 Form C)
• Contact Rating (Current): 2 A
• Switching Voltage (Max): 220VDC
• Mounting Type: Surface Mount
• Termination Style: Gull Wing
• Seal Rating: Sealed - Fully
• Operating Temperature Range: -40°C ~ 85°C
• Contact Material: Silver (Ag), Gold (Au)

Variable Parameters (Allowed to Differ):

• Coil Voltage: May differ based on circuit design requirements
• Coil Current: Varies with coil voltage selection
• Coil Resistance: Varies inversely with coil voltage
• Relay Type: May differ (General Purpose vs. Telecom)
• Series designation: May differ within manufacturer portfolio

The TX2SA-L-3V qualifies as a substitute part because it maintains all fixed parameters while offering an alternative 3VDC coil voltage option, enabling use in low-voltage control circuits where the 12VDC version is unsuitable.

Parameter Comparison

Engineering Selection Recommendations

Both the TXD2SS-L-12V and TX2SA-L-3V are active production components from Panasonic Electric Works with full environmental compliance certifications. Selection between these parts is determined by circuit coil voltage requirements:

TXD2SS-L-12V Selection Criteria:

• Applications requiring 12VDC coil excitation
• Systems with 12V power supply infrastructure
• RoHS Compliant designation required
• Current availability: 976 pieces in stock

TX2SA-L-3V Selection Criteria:

• Applications requiring 3VDC coil excitation
• Low-voltage control circuits and battery-powered systems
• ROHS3 Compliant designation required
• Current availability: 1112 pieces in stock

Both parts maintain identical contact switching characteristics (2A at 220VDC maximum), identical mechanical form factor (surface mount, gull wing termination), and identical thermal operating range (-40°C to 85°C). The substitution is valid when circuit design permits coil voltage adaptation.

Frequently Asked Questions (FAQ)

Q: Can TX2SA-L-3V directly replace TXD2SS-L-12V without circuit modification?

A: No. The TX2SA-L-3V requires 3VDC coil excitation versus 12VDC for the TXD2SS-L-12V. Direct substitution requires circuit redesign to supply the appropriate coil voltage. The relay control circuit must be modified to accommodate the different voltage requirement.

Q: Are the contact switching specifications identical between these parts?

A: Yes. Both relays feature DPDT (2 Form C) contact configuration with 2A contact rating and 220VDC maximum switching voltage. Contact material composition (Silver/Gold), operate time (4 ms), and release time (4 ms) are identical.

Q: Do these relays have identical physical dimensions and footprints?

A: Both parts use surface mount packaging with gull wing termination style. Footprint compatibility should be verified against PCB design specifications, as series designation differences (TX-D versus TX) may indicate minor dimensional variations not detailed in the provided parameters.

Q: What is the difference in coil current consumption?

A: The TXD2SS-L-12V draws 12.5 mA at 12VDC, while the TX2SA-L-3V draws 33.3 mA at 3VDC. The higher current draw of the 3V version reflects lower coil resistance (90 Ohms versus 960 Ohms). Power consumption at coil voltage is approximately 150 mW for both designs.

Q: Are both parts RoHS compliant?

A: Yes. The TXD2SS-L-12V carries RoHS Compliant certification. The TX2SA-L-3V carries ROHS3 Compliant certification, indicating compliance with the updated RoHS 3 directive. Both meet environmental compliance requirements for EU and equivalent markets.

Q: What is the minimum voltage required to operate each relay?

A: The TXD2SS-L-12V requires minimum 9VDC to operate. The TX2SA-L-3V requires minimum 2.25VDC to operate. These must-operate voltages define the minimum coil excitation levels for reliable relay actuation.