DS2E-SL2-DC3V Equivalent & Substitute Parts

Part Overview

The DS2E-SL2-DC3V is a general purpose relay manufactured by Panasonic Electric Works, configured as a DPDT (2 Form C) switching device with 2A contact rating and 3VDC coil voltage. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The relay features latching dual-coil operation, sealed construction, and PC pin termination suitable for through-hole mounting applications.

Substiute Parts

DS2E-SL2-DC3V

Panasonic Electric WorksIn Stock: 1856DS2E-SL2-DC3V Datasheet

Current PartRFQ

TX2-LT-3V

Panasonic Electric WorksIn Stock: 1055TX2-LT-3V Datasheet

SimilarRFQ

V23079B1208B301

TE Connectivity Potter & Brumfield RelaysIn Stock: 971V23079B1208B301 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS2E-SL2-DC3V is determined by strict alignment with the following critical parameters:

• Coil Voltage: Must be 3VDC
• Contact Form: Must be DPDT (2 Form C)
• Contact Rating: Must be 2 A minimum
• Coil Type: Must be Latching, Dual Coil
• Mounting Type: Must be Through Hole
• Termination Style: Must be PC Pin
• Seal Rating: Must be Sealed - Fully

The identified substitute parts meet these core electrical and mechanical requirements. Variations in coil current, operate/release times, and operating temperature ranges are permissible within the functional envelope of this relay category, provided the critical parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

TX2-LT-3V is an active product from Panasonic Electric Works that maintains full electrical and mechanical compatibility with the DS2E-SL2-DC3V. This substitute offers an extended operating temperature range (-40°C ~ 85°C versus -40°C ~ 70°C) and improved switching response times (4 ms operate/release versus 10 ms/5 ms). The TX2-LT-3V is classified as a telecom relay but meets all critical substitution parameters. Compliance status for RoHS is not specified in available documentation.

V23079B1208B301 is an active general purpose relay from TE Connectivity Potter & Brumfield Relays that satisfies all core electrical and mechanical requirements. This substitute features ROHS3 compliance and an extended operating temperature range (-40°C ~ 85°C). The contact material differs slightly (Silver Nickel with Gold versus Silver with Gold), and seal rating is not specified. Coil current is lower at 46.7 mA, which may reduce power consumption in the application circuit.

Both substitutes are currently in active production status, ensuring long-term availability compared to the obsolete DS2E-SL2-DC3V.

Frequently Asked Questions (FAQ)

Q: Can TX2-LT-3V be used as a direct replacement for DS2E-SL2-DC3V?

A: Yes. Both relays share identical coil voltage (3VDC), contact form (DPDT), contact rating (2A), coil type (latching dual-coil), mounting type (through-hole), and termination style (PC pin). The TX2-LT-3V is fully compatible for circuit-level substitution.

Q: What is the difference between the two substitute parts?

A: TX2-LT-3V is a telecom-grade relay from Panasonic Electric Works with 66.7 mA coil current and 4 ms switching times. V23079B1208B301 is a general purpose relay from TE Connectivity with 46.7 mA coil current, lower power consumption, and ROHS3 certification. Both meet the DS2E-SL2-DC3V electrical specifications.

Q: Does the difference in coil resistance affect circuit design?

A: Coil resistance varies across the three parts (50 Ohms, 45 Ohms, and 64 Ohms respectively). If the circuit includes series resistors or current-limiting components, verify that the coil current specification (60 mA, 66.7 mA, or 46.7 mA) remains within the design envelope. Direct substitution is acceptable if the power supply can deliver the required coil current.

Q: Are there packaging differences between these relays?

A: DS2E-SL2-DC3V packaging is not specified. TX2-LT-3V is supplied in tube packaging. V23079B1208B301 packaging is not specified. Verify PCB footprint compatibility and lead spacing before substitution.

Q: Which substitute should be selected for new designs?

A: Both TX2-LT-3V and V23079B1208B301 are active products suitable for new designs. TX2-LT-3V offers faster switching response. V23079B1208B301 offers lower coil current and ROHS3 compliance. Selection depends on application-specific requirements for switching speed, power consumption, and regulatory compliance.

Q: Is the extended operating temperature range of the substitutes a concern?

A: No. The substitutes operate across -40°C ~ 85°C, which encompasses the original DS2E-SL2-DC3V range of -40°C ~ 70°C. Extended temperature capability does not create compatibility issues.