TX2SL-48V-Z Telecom Relay Equivalent & Substitute Parts

Part Overview

The TX2SL-48V-Z is a Panasonic Electric Works telecom relay with DPDT (2 Form C) contact configuration, rated for 2A at 48VDC. This surface mount component features sealed construction with gull wing termination, designed for telecommunications applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring compatible relay functionality.

Key Parameters

Parameter	Value
Coil Voltage	48VDC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	2 A
Switching Voltage (Max)	220VDC
Coil Current	5.6 mA
Coil Type	Non Latching
Mounting Type	Surface Mount
Termination Style	Gull Wing
Seal Rating	Sealed - Fully
Operating Temperature Range	-40°C ~ 70°C
Contact Material	Silver (Ag), Gold (Au)
Coil Resistance	8.53 kOhms
Must Operate Voltage	36 VDC
Must Release Voltage	4.8 VDC
Operate Time	4 ms
Release Time	4 ms

Substitute Part Grouping Explanation

Substitution for the TX2SL-48V-Z is determined by strict equivalence across all electrical and mechanical parameters. The following criteria define valid substitutes:

Coil voltage: 48VDC
Contact configuration: DPDT (2 Form C)
Contact current rating: 2 A
Maximum switching voltage: 220VDC
Coil current: 5.6 mA
Non-latching coil type
Surface mount with gull wing termination
Fully sealed construction
Operating temperature range: -40°C ~ 70°C
Contact material: Silver (Ag), Gold (Au)
Coil resistance: 8.53 kOhms
Must operate voltage: 36 VDC
Must release voltage: 4.8 VDC
Switching times: 4 ms operate, 4 ms release

All four substitute parts meet these criteria and are manufactured by Panasonic Electric Works within the TX series.

Parameter Comparison

Part Number	Manufacturer	Product Status	Packaging	Coil Voltage	Contact Form	Current Rating	Coil Current	Coil Resistance	Operate/Release Time	Operating Temp	Inventory
TX2SL-48V-Z	Panasonic Electric Works	Obsolete	Bulk	48VDC	DPDT (2 Form C)	2 A	5.6 mA	8.53 kOhms	4 ms / 4 ms	-40°C ~ 70°C	993 Pcs
TX2SA-48V-Z	Panasonic Electric Works	Active	Tape & Reel (TR)	48VDC	DPDT (2 Form C)	2 A	5.6 mA	8.53 kOhms	4 ms / 4 ms	-40°C ~ 70°C	973 Pcs
TX2SA-48V-X	Panasonic Electric Works	Active	Tape & Reel (TR)	48VDC	DPDT (2 Form C)	2 A	5.6 mA	8.53 kOhms	4 ms / 4 ms	-40°C ~ 70°C	665 Pcs
TX2SS-48V-Z	Panasonic Electric Works	Active	Tape & Reel (TR)	48VDC	DPDT (2 Form C)	2 A	5.6 mA	8.53 kOhms	4 ms / 4 ms	-40°C ~ 70°C	859 Pcs
TX2SS-48V-X	Panasonic Electric Works	Active	Tape & Reel (TR)	48VDC	DPDT (2 Form C)	2 A	5.6 mA	8.53 kOhms	4 ms / 4 ms	-40°C ~ 70°C	719 Pcs

Engineering Selection Recommendations

All four substitute parts are active products manufactured by Panasonic Electric Works and maintain full electrical and mechanical equivalence to the obsolete TX2SL-48V-Z. Selection among substitutes should be based on the following factors:

Product Status: TX2SA-48V-Z, TX2SA-48V-X, TX2SS-48V-Z, and TX2SS-48V-X are all active products, ensuring long-term availability and supply chain stability compared to the obsolete TX2SL-48V-Z.

Compliance: All substitute parts carry RoHS Compliant status, meeting current environmental and regulatory requirements. The original TX2SL-48V-Z does not specify RoHS compliance.

Packaging: The original part is supplied in bulk packaging. All substitutes are available in Tape & Reel (TR) format, which is standard for automated assembly processes and provides better handling protection.

Inventory Availability: TX2SA-48V-Z offers the highest inventory level at 973 pieces, followed by TX2SS-48V-Z at 859 pieces, TX2SA-48V-X at 665 pieces, and TX2SS-48V-X at 719 pieces.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts electrically identical to the TX2SL-48V-Z?

A: Yes. All four substitute parts maintain identical electrical specifications including 48VDC coil voltage, DPDT contact configuration, 2A current rating, 5.6 mA coil current, 8.53 kOhms coil resistance, and identical switching times of 4 ms for both operate and release functions.

Q: What is the difference between TX2SA and TX2SS base part numbers?

A: The provided data specifies only the base product numbers TX2SA and TX2SS within the TX series. Both maintain full parametric equivalence to the TX2SL-48V-Z across all electrical and mechanical parameters.

Q: Does packaging format affect electrical performance?

A: No. The change from bulk packaging (TX2SL-48V-Z) to Tape & Reel format (all substitutes) does not alter electrical or mechanical performance. Tape & Reel packaging is standard for surface mount components and provides improved handling and automated assembly compatibility.

Q: Why is the original TX2SL-48V-Z listed as obsolete?

A: The TX2SL-48V-Z is designated as obsolete by the manufacturer. The active substitute parts TX2SA-48V-Z, TX2SA-48V-X, TX2SS-48V-Z, and TX2SS-48V-X provide equivalent functionality with current product status and ongoing manufacturer support.

Q: Are the substitute parts RoHS compliant?

A: Yes. All four substitute parts carry RoHS Compliant certification. The original TX2SL-48V-Z does not specify RoHS status in the provided data.

Q: Can I use these substitutes in existing designs without modification?

A: Yes. All substitute parts are parametrically equivalent across electrical specifications, coil voltage, contact configuration, current ratings, operating temperature range, and switching characteristics. Surface mount gull wing termination is identical across all parts.

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