Bourns 2015-50-SMH-RPLF Gas Discharge Tube - Equivalent & Substitute Parts

Part Overview

The Bourns 2015-50-SMH-RPLF is a Gas Discharge Tube (GDT) rated for 500V DC spark-over voltage with 5kA impulse discharge current capacity in a 2-pole surface mount configuration. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary due to obsolescence, ensuring continued availability for maintenance, repair, and new design implementations where this specification remains applicable.

Substiute Parts

2015-50-SMH-RPLF

Bourns Inc.In Stock: 10792015-50-SMH-RPLF Datasheet

Current PartRFQ

2017-50-SMH-RPLF

Bourns Inc.In Stock: 8012017-50-SMH-RPLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2015-50-SMH-RPLF is determined by the following critical parameters:

• Voltage - DC Spark Over (Nominal): 500 V (must match)
• Number of Poles: 2 (must match)
• Mounting Type: Surface Mount (must match)
• Fail Short characteristic: No (must match)
• Tolerance: ±20% (must match)

The substitute part 2017-50-SMH-RPLF meets all mandatory substitution criteria. The primary difference is the impulse discharge current rating, which is higher (10kA versus 5kA), representing an enhanced capability rather than a limitation. Both parts maintain identical voltage, pole configuration, fail-short behavior, and tolerance specifications.

Parameter Comparison

Engineering Selection Recommendations

The 2017-50-SMH-RPLF is the direct substitute for the obsolete 2015-50-SMH-RPLF. Both components are ROHS3 compliant and maintain identical electrical specifications for voltage and pole configuration. The substitute part carries active product status, ensuring long-term availability and supply chain continuity.

The increased impulse discharge current rating (10kA versus 5kA) of the substitute part provides enhanced surge protection capability without compromising compatibility with the original 500V spark-over specification. Both parts exhibit identical fail-short behavior and tolerance characteristics.

Physical package differences exist between the two parts (2-SMD versus Disc 8.00mm Tabbed SMD), requiring PCB layout verification during implementation.

Frequently Asked Questions (FAQ)

Q: Can the 2017-50-SMH-RPLF directly replace the 2015-50-SMH-RPLF?

A: Yes. Both parts share identical voltage ratings (500V), pole configuration (2-pole), fail-short behavior, and tolerance (±20%). The substitute part is rated for higher impulse discharge current (10kA versus 5kA), which represents increased protection capability.

Q: What are the physical differences between these parts?

A: The main part uses a 2-SMD package, while the substitute uses a Disc 8.00mm Tabbed SMD package. The substitute is configured for horizontal surface mount orientation. PCB footprint verification is required before implementation.

Q: Why is the original part obsolete?

A: The 2015-50-SMH-RPLF is classified as obsolete product status. The 2017-50-SMH-RPLF series represents the current active product line from Bourns Inc. for this voltage and pole configuration.

Q: Are both parts RoHS compliant?

A: Yes. Both the 2015-50-SMH-RPLF and 2017-50-SMH-RPLF are ROHS3 compliant.

Q: What is the significance of the higher 10kA rating on the substitute part?

A: The 10kA impulse discharge current rating provides enhanced surge protection capability compared to the 5kA rating of the original part. This does not create incompatibility; it represents an improved specification for the same 500V spark-over voltage class.