DS2E-SL2-DC12V Equivalent & Substitute Parts

Part Overview

The DS2E-SL2-DC12V is a general purpose relay manufactured by Panasonic Electric Works, configured as a DPDT (2 Form C) with 2A contact rating and 12VDC coil voltage. This part is classified as obsolete, making equivalent 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.

Key Parameters

Parameter	Value
Coil Voltage	12VDC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	2 A
Switching Voltage	250VAC, 220VDC - Max
Coil Type	Latching, Dual Coil
Mounting Type	Through Hole
Termination Style	PC Pin
Seal Rating	Sealed - Fully
Operating Temperature Range	-40°C ~ 70°C
Contact Material	Silver (Ag), Gold (Au)

Substitute Part Grouping Explanation

Substitute parts for the DS2E-SL2-DC12V are qualified based on the following critical parameters:

Coil Voltage: 12VDC (exact match required)
Contact Form: DPDT (2 Form C) configuration
Contact Rating: 2 A minimum
Mounting Type: Through Hole with PC Pin termination
Coil Type: Latching, Dual Coil operation
Seal Rating: Fully sealed construction

The two identified substitutes meet these core electrical and mechanical requirements. Variations in coil current, operate/release times, coil resistance, and operating temperature ranges are within acceptable tolerances for general purpose relay applications and do not preclude functional equivalence.

Parameter Comparison

Parameter	DS2E-SL2-DC12V	TX2-LT-12V	V23079B1203B301
Manufacturer	Panasonic Electric Works	Panasonic Electric Works	TE Connectivity Potter & Brumfield Relays
Product Status	Obsolete	Active	Active
Coil Voltage	12VDC	12VDC	12VDC
Contact Form	DPDT (2 Form C)	DPDT (2 Form C)	DPDT (2 Form C)
Contact Rating (Current)	2 A	2 A	2 A
Switching Voltage	250VAC, 220VDC - Max	220VDC - Max	250VAC, 220VDC - Max
Coil Current	15 mA	16.7 mA	11.7 mA
Coil Type	Latching, Dual Coil	Latching, Dual Coil	Latching, Dual Coil
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin
Seal Rating	Sealed - Fully	Sealed - Fully	Not specified
Must Operate Voltage	8.4 VDC	9 VDC	9 VDC
Operate Time	10 ms	4 ms	4 ms
Release Time	5 ms	4 ms	4 ms
Operating Temperature Range	-40°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Contact Material	Silver (Ag), Gold (Au)	Silver (Ag), Gold (Au)	Silver Nickel (AgNi), Gold (Au)
Coil Resistance	800 Ohms	720 Ohms	1.03 kOhms
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing support, addressing the obsolescence status of the DS2E-SL2-DC12V.

TX2-LT-12V (Panasonic Electric Works): Maintains manufacturer continuity within the Panasonic product line. Classified as a telecom relay with faster switching characteristics (4 ms operate/release versus 10 ms/5 ms). ROHS3 compliant. Operating temperature range extends to 85°C. Coil current specification of 16.7 mA is marginally higher than the original part.

V23079B1203B301 (TE Connectivity Potter & Brumfield Relays): Provides cross-manufacturer substitution with established market availability (3710 pcs in stock). ROHS3 compliant with REACH unaffected status. Offers lower coil current (11.7 mA) and extended operating temperature to 85°C. Contact material uses Silver Nickel (AgNi) instead of pure Silver (Ag). Switching voltage specification matches the original part at 250VAC/220VDC maximum.

Both parts satisfy the core electrical and mechanical requirements for direct substitution in applications requiring 12VDC DPDT latching relay operation with 2A contact rating and through-hole PC pin mounting.

Frequently Asked Questions (FAQ)

Q: Can TX2-LT-12V be used as a direct replacement for DS2E-SL2-DC12V?

A: Yes. Both parts share identical coil voltage (12VDC), contact form (DPDT), contact rating (2A), coil type (latching dual-coil), mounting type (through-hole), and termination style (PC pin). The TX2-LT-12V operates faster (4 ms versus 10 ms) and supports a higher temperature range (-40°C to 85°C versus -40°C to 70°C).

Q: What are the differences between the two substitute parts?

A: TX2-LT-12V is manufactured by Panasonic Electric Works and classified as a telecom relay. V23079B1203B301 is manufactured by TE Connectivity and classified as a general purpose relay. Both meet substitution criteria. TX2-LT-12V has slightly higher coil current (16.7 mA). V23079B1203B301 has lower coil current (11.7 mA) and uses Silver Nickel contact material instead of pure Silver.

Q: Are there packaging differences between these parts?

A: All three parts use PC pin termination for through-hole mounting. TX2-LT-12V and V23079B1203B301 are supplied in tube packaging, while the original DS2E-SL2-DC12V packaging is not specified in available data.

Q: Do the substitute parts meet RoHS requirements?

A: Yes. Both TX2-LT-12V and V23079B1203B301 are ROHS3 compliant. The original DS2E-SL2-DC12V is RoHS compliant.

Q: What is the impact of different coil resistance values?

A: Coil resistance differences (DS2E: 800 Ohms, TX2-LT: 720 Ohms, V23079B1203B301: 1.03 kOhms) result in proportional coil current variations. These variations are within acceptable operating ranges for 12VDC supply circuits and do not affect functional equivalence for general purpose relay applications.

Q: Can these parts operate at different temperatures?

A: The original DS2E-SL2-DC12V operates from -40°C to 70°C. Both substitutes extend the upper limit to 85°C. Applications requiring operation only within the -40°C to 70°C range are fully compatible with all three parts. Applications requiring operation above 70°C must use TX2-LT-12V or V23079B1203B301.

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