PMT809004F Gas Discharge Tube 90V 20kA 3 Pole Through Hole

Part Overview

The PMT809004F is a gas discharge tube (GDT) rated for 90V DC spark over voltage with an impulse discharge current capacity of 20kA (8/20µs). This component is designed for three-pole through-hole applications and features fail-short characteristics for protective circuit implementations. The PMT809004F is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and design continuity.

Substiute Parts

PMT809004F

Littelfuse Inc.In Stock: 941PMT809004F Datasheet

Current PartRFQ

SL1021B090RF

Littelfuse Inc.In Stock: 877SL1021B090RF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL1021B090RF qualifies as a direct substitute for the PMT809004F based on matching electrical and mechanical specifications. Substitution is valid when the following parameters are identical:

• Voltage - DC Spark Over (Nominal): 90 V
• Impulse Discharge Current (8/20µs): 20000A (20kA)
• Number of Poles: 3
• Fail Short: Yes
• Mounting Type: Through Hole
• Package / Case: Axial Cylinder, 3 Lead (Radial Bend)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SL1021B090RF maintains full electrical and mechanical compatibility with the PMT809004F while offering the advantage of active product status and availability.

Parameter Comparison

Engineering Selection Recommendations

The SL1021B090RF is the appropriate selection for applications currently specified with PMT809004F components. Both parts are manufactured by Littelfuse Inc. and maintain identical electrical performance and mechanical form factors. The SL1021B090RF offers the advantage of active product status, ensuring continued availability and supply chain reliability. Both components meet ROHS3 compliance requirements and carry identical environmental ratings. The transition from PMT809004F to SL1021B090RF requires no circuit redesign or performance validation, as all critical parameters remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can SL1021B090RF be used as a direct replacement for PMT809004F?

A: Yes. The SL1021B090RF is a direct substitute. All electrical parameters (90V spark over, 20kA impulse discharge current, 3-pole configuration) and mechanical specifications (through-hole mounting, axial cylinder package) are identical.

Q: What is the primary reason to transition from PMT809004F to SL1021B090RF?

A: The PMT809004F is classified as obsolete. The SL1021B090RF is an active product from the same manufacturer with identical specifications, ensuring long-term availability and supply continuity.

Q: Are there any packaging differences between these parts?

A: Both components use the same package type: Axial Cylinder, 3 Lead (Radial Bend). The PMT809004F is supplied in standard packaging, while the SL1021B090RF is supplied in Tray packaging. This difference does not affect electrical or mechanical compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PMT809004F and SL1021B090RF are ROHS3 compliant with MSL rating of 1 (Unlimited). Both carry identical ECCN (EAR99) and HTSUS (8536.30.8000) classifications.

Q: Is circuit redesign necessary when switching to SL1021B090RF?

A: No. The SL1021B090RF maintains identical electrical and mechanical specifications, allowing direct substitution without circuit modification or performance re-evaluation.