UM2319 Equivalent & Substitute Parts

Part Overview

The UM2319 is a glass body reed switch manufactured by Coto Technology, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a 250mA switching capacity at 175V. This component is rated at 5VA with surface mount termination in a gull wing configuration. The product is currently obsolete, necessitating identification of suitable alternatives for ongoing component sourcing and system design requirements.

Substiute Parts

UM2319

Coto TechnologyIn Stock: 917UM2319 Datasheet

Current PartRFQ

CT05-3050-J1

Coto TechnologyIn Stock: 1003CT05-3050-J1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UM2319 is determined by the following critical electrical and mechanical parameters:

Electrical Parameters: Circuit configuration (SPST-NO), switching current capacity (minimum 250mA), and switching voltage rating (minimum 175V AC/DC). The substitute must maintain equivalent or superior switching capacity across both AC and DC applications.

Mechanical Parameters: Surface mount packaging with compatible termination style and body dimensions suitable for existing PCB layouts. Operating temperature range (-40°C to 125°C) and regulatory compliance (RoHS, REACH) must be preserved.

Product Status Consideration: The UM2319 is obsolete. Active alternatives from the same manufacturer (Coto Technology) are preferred to ensure design continuity and long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The CT05-3050-J1 is an active product from Coto Technology that offers continuity for the obsolete UM2319. Both components are manufactured by the same supplier and maintain identical operating temperature ranges and MSL ratings.

The CT05-3050-J1 demonstrates superior DC current capacity (350mA versus 250mA) and enhanced power rating (5W versus 5VA). However, the switching voltage rating is reduced: 100V AC and 140V DC compared to the UM2319's 175V rating. The substitute employs a molded body construction and J Lead termination, differing from the glass body and gull wing configuration of the original.

Selection of the CT05-3050-J1 requires validation that the reduced voltage rating (100V AC / 140V DC) meets the electrical requirements of the intended application. Both RoHS compliance and REACH compliance are maintained. The molded body construction and J Lead termination necessitate PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can the CT05-3050-J1 directly replace the UM2319 without PCB modification? A: No. The CT05-3050-J1 uses J Lead termination compared to the UM2319's gull wing termination, and the physical body dimensions differ. PCB footprint redesign is required.

Q: Is the lower voltage rating of the CT05-3050-J1 acceptable? A: The CT05-3050-J1 is rated at 100V AC and 140V DC, compared to the UM2319's 175V rating. Substitution is only acceptable if the application's maximum operating voltage does not exceed 100V AC or 140V DC.

Q: Are both components RoHS and REACH compliant? A: Yes. The UM2319 is RoHS Compliant, and the CT05-3050-J1 is ROHS3 Compliant. Both are REACH Unaffected.

Q: Why is the CT05-3050-J1 presented as the substitute? A: It is manufactured by the same supplier (Coto Technology) and maintains the same circuit configuration (SPST-NO) and operating temperature range. It is currently in active production, ensuring ongoing availability.

Q: What are the key differences between glass body and molded body reed switches? A: The UM2319 uses glass body construction while the CT05-3050-J1 uses molded body construction. These represent different physical implementations of the reed switch mechanism. The CT05-3050-J1 specifies a different operate range (30~50AT) compared to the UM2319 (10~15AT), reflecting the mechanical characteristics of each construction type.

Q: What is the impact of different operate ranges (10~15AT versus 30~50AT)? A: The operate range specifies the magnetic field strength at which the switch activates (measured in Ampere-Turns). The CT05-3050-J1 requires a stronger magnetic field (30~50AT) to activate compared to the UM2319 (10~15AT). Application-specific magnetic source characteristics determine compatibility.