TX2SS-12V-X Telecom Relay Equivalent & Substitute Parts

Part Overview

The TX2SS-12V-X is an active Panasonic Electric Works telecom relay featuring DPDT (2 Form C) contact configuration with 2A contact rating and 12VDC coil voltage. This surface mount component is sealed and fully rated for telecom applications. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and manufacturing standards to ensure direct functional equivalence in circuit applications.

Key Parameters

Parameter	Value
Coil Voltage	12VDC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	2 A
Switching Voltage (Max)	220VDC
Coil Current	11.7 mA
Coil Resistance	1.03 kOhms
Mounting Type	Surface Mount
Termination Style	Gull Wing
Operating Temperature Range	-40°C ~ 85°C
Seal Rating	Sealed - Fully
Contact Material	Silver (Ag), Gold (Au)
Coil Type	Non Latching
Must Operate Voltage	9 VDC
Must Release Voltage	1.2 VDC
Operate Time	4 ms
Release Time	4 ms

Substitute Part Grouping Explanation

Substitute parts for the TX2SS-12V-X are qualified based on identical electrical and mechanical parameters across all critical specifications. The substitution logic is structured as follows:

Direct Packaging Equivalent: TX2SS-12V differs only in packaging format (Tube versus Tape & Reel), maintaining all electrical and functional specifications.

Parametric Equivalents: TX2SA-12V-X and TX2SA-12V-Z are functionally equivalent across all electrical parameters, coil characteristics, contact ratings, and operating conditions. These parts share the same base series designation (TX2SA) and differ only in packaging and suffix designations.

Key Parameters Determining Substitution:

Coil Voltage: 12VDC (all parts)
Contact Form: DPDT (2 Form C) (all parts)
Contact Rating: 2 A (all parts)
Coil Current: 11.7 mA (all parts)
Coil Resistance: 1.03 kOhms (all parts)
Switching Voltage: 220VDC Max (all parts)
Operating Temperature: -40°C ~ 85°C (all parts)
Mounting Type: Surface Mount (all parts)
Termination Style: Gull Wing (all parts)

Parameter Comparison

Parameter	TX2SS-12V-X (Main)	TX2SS-12V	TX2SA-12V-X	TX2SA-12V-Z
Manufacturer	Panasonic Electric Works	Panasonic Electric Works	Panasonic Electric Works	Panasonic Electric Works
Coil Voltage	12VDC	12VDC	12VDC	12VDC
Contact Form	DPDT (2 Form C)	DPDT (2 Form C)	DPDT (2 Form C)	DPDT (2 Form C)
Contact Rating (Current)	2 A	2 A	2 A	2 A
Switching Voltage (Max)	220VDC	220VDC	220VDC	220VDC
Coil Current	11.7 mA	11.7 mA	11.7 mA	11.7 mA
Coil Resistance	1.03 kOhms	1.03 kOhms	1.03 kOhms	1.03 kOhms
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination Style	Gull Wing	Gull Wing	Gull Wing	Gull Wing
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Seal Rating	Sealed - Fully	Sealed - Fully	Sealed - Fully	Sealed - Fully
Contact Material	Silver (Ag), Gold (Au)	Silver (Ag), Gold (Au)	Silver (Ag), Gold (Au)	Silver (Ag), Gold (Au)
Coil Type	Non Latching	Non Latching	Non Latching	Non Latching
Must Operate Voltage	9 VDC	9 VDC	9 VDC	9 VDC
Must Release Voltage	1.2 VDC	1.2 VDC	1.2 VDC	1.2 VDC
Operate Time	4 ms	4 ms	4 ms	4 ms
Release Time	4 ms	4 ms	4 ms	4 ms
Packaging	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Active	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts maintain active product status with Panasonic Electric Works. The TX2SS-12V offers equivalent functionality with Tube packaging, suitable for applications where reel packaging is not required. The TX2SA-12V-X and TX2SA-12V-Z provide parametric equivalence with ROHS3 compliance and REACH unaffected status, offering enhanced regulatory alignment for applications requiring higher compliance standards. Selection between these parts should be based on packaging requirements and compliance certifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can TX2SS-12V replace TX2SS-12V-X in a circuit design? A: Yes. Both parts share identical electrical specifications, coil voltage, contact ratings, and operating characteristics. The difference is packaging format: TX2SS-12V uses Tube packaging while TX2SS-12V-X uses Tape & Reel. Circuit performance is functionally equivalent.

Q: What is the difference between TX2SA-12V-X and TX2SA-12V-Z? A: Both TX2SA variants are parametrically equivalent to the main part across all electrical and mechanical specifications. The suffix designations (-X and -Z) indicate different packaging or manufacturing batches, but electrical performance remains identical.

Q: Are the TX2SA series parts direct substitutes for the TX2SS series? A: Yes. The TX2SA-12V-X and TX2SA-12V-Z are parametric equivalents with identical coil voltage, contact form, current ratings, coil resistance, and operating characteristics. Both series are Panasonic Electric Works telecom relays with DPDT configuration and 2A contact rating.

Q: What packaging options are available for these substitute parts? A: TX2SS-12V-X and TX2SA variants are supplied in Tape & Reel (TR) packaging. TX2SS-12V is supplied in Tube packaging. Selection depends on assembly process requirements and inventory management practices.

Q: Do all substitute parts meet the same compliance standards? A: TX2SS-12V-X is RoHS Compliant. TX2SS-12V, TX2SA-12V-X, and TX2SA-12V-Z are ROHS3 Compliant with REACH Unaffected status. All parts carry EAR99 ECCN classification and 8536.41.0020 HTSUS code.

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