PMT809001 Equivalent & Substitute Parts

Part Overview

The PMT809001 is a Gas Discharge Tube (GDT) rated at 90V DC spark-over voltage with 20kA impulse discharge current capacity in a 3-pole configuration. This component is designed for overvoltage protection applications requiring multi-terminal surge suppression.

The PMT809001 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

PMT809001

Littelfuse Inc.In Stock: 1102PMT809001 Datasheet

Current PartRFQ

SL1021B090C

Littelfuse Inc.In Stock: 677SL1021B090C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PMT809001 is determined by strict equivalence across the following critical parameters:

• Voltage - DC Spark Over (Nominal): 90V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Short characteristic: No
• Package / Case: Cylinder No Lead, 3 Terminal
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part SL1021B090C meets all these criteria and is manufactured by the same supplier (Littelfuse Inc.), ensuring electrical and mechanical compatibility with the original PMT809001 design.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B090C is the direct equivalent substitute for the PMT809001. Both components share identical electrical specifications (90V spark-over, 20kA impulse discharge current) and mechanical form factor (3-pole cylinder configuration).

The primary distinction is product status: PMT809001 is Obsolete, while SL1021B090C is Active. Selection of SL1021B090C ensures long-term component availability and supply chain continuity. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting equivalent environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SL1021B090C be used as a direct replacement for PMT809001?

A: Yes. Both components are electrically and mechanically equivalent, with identical 90V spark-over voltage, 20kA impulse discharge current, 3-pole configuration, and package type. The primary difference is product status (Active vs. Obsolete).

Q: What is the difference in packaging between these parts?

A: PMT809001 is supplied in standard packaging, while SL1021B090C is supplied in Tray packaging. Both use the same Cylinder No Lead, 3 Terminal physical form factor and are compatible with identical PCB layouts and mounting procedures.

Q: Are there any compliance differences between PMT809001 and SL1021B090C?

A: No. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both carry ECCN EAR99 and HTSUS 8536.30.8000 classifications.

Q: Why is PMT809001 listed as Obsolete?

A: Product obsolescence is determined by the manufacturer. SL1021B090C, as an Active product with identical specifications, is the recommended alternative for new designs and ongoing production requirements.

Q: Are there any electrical performance differences?

A: No. Both components have identical electrical characteristics: 90V DC spark-over voltage (nominal), 20000A (20kA) impulse discharge current at 8/20µs, and non-fail-short operation.