PMT6090MS Equivalent & Substitute Parts

Part Overview

The PMT6090MS is a Gas Discharge Tube (GDT) rated at 90V with 5000A (5kA) impulse discharge current in a 3-pole configuration. This component is designed for surge protection applications requiring user-defined mounting. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

PMT6090MS
Littelfuse Inc.In Stock: 1076PMT6090MS Datasheet
PMT6090MS
Current Part
SL1003A090SM
Littelfuse Inc.In Stock: 15841SL1003A090SM Datasheet
SL1003A090SM
MFR Recommended

Key Parameters

Parameter Value
Voltage - DC Spark Over (Nominal) 90 V
Impulse Discharge Current (8/20µs) 5000A (5kA)
Number of Poles 3
Fail Short No
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PMT6090MS is determined by the following critical parameters:

  • Voltage Rating: 90V DC spark over voltage (nominal)
  • Pole Configuration: 3-pole architecture
  • Fail Mode: Non-shorting characteristic
  • Regulatory Compliance: ROHS3 compliance requirement
  • Moisture Sensitivity: MSL 1 rating

The substitute part SL1003A090SM meets all mandatory substitution criteria. While the impulse discharge current rating differs (10kA versus 5kA), this represents an enhanced capability within the same voltage and pole configuration, suitable for applications requiring equal or greater surge protection capacity.

Parameter Comparison

Parameter PMT6090MS SL1003A090SM
Manufacturer Littelfuse Inc. Littelfuse Inc.
Voltage - DC Spark Over (Nominal) 90 V 90 V
Impulse Discharge Current (8/20µs) 5000A (5kA) 10000A (10kA)
Number of Poles 3 3
Fail Short No No
Mounting Type User Defined Surface Mount
Package / Case Cylinder No Lead, 3 Terminal 3-SMD Cylinder Square End
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
Product Status Obsolete Active

Engineering Selection Recommendations

The SL1003A090SM is the manufacturer-recommended substitute for the obsolete PMT6090MS. Both components share identical voltage ratings, pole configuration, and fail-mode characteristics, with full ROHS3 compliance and MSL 1 moisture sensitivity ratings.

The primary design consideration is the mounting interface transition from user-defined to surface mount technology. The SL1003A090SM's enhanced impulse discharge current rating (10kA versus 5kA) provides increased surge protection capacity and is suitable for applications originally specified with the PMT6090MS.

Product status transition from obsolete to active ensures long-term availability and supply chain continuity for the SL1003A090SM.

Frequently Asked Questions (FAQ)

Q: Can the SL1003A090SM directly replace the PMT6090MS in existing designs?

A: Electrical compatibility is confirmed across voltage rating, pole configuration, and fail-mode characteristics. Mechanical compatibility requires evaluation of the mounting interface change from user-defined to surface mount technology.

Q: What is the significance of the increased impulse discharge current rating?

A: The SL1003A090SM's 10kA rating represents enhanced surge protection capacity compared to the PMT6090MS 5kA rating. This higher capability is suitable for applications requiring equal or greater transient protection at the same 90V voltage threshold.

Q: Are there compliance differences between the two parts?

A: Both components maintain ROHS3 compliance and MSL 1 moisture sensitivity ratings. No compliance degradation occurs with substitution.

Q: What mounting considerations apply to this substitution?

A: The PMT6090MS uses user-defined mounting, while the SL1003A090SM is specified for surface mount applications. PCB layout and assembly process compatibility must be evaluated for your specific application.

Q: Is the SL1003A090SM available for procurement?

A: The SL1003A090SM is listed as active product status with 15822 pieces in stock, ensuring availability for new designs and production requirements.

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