SP0504BAHT Equivalent & Substitute Parts

Part Overview

The SP0504BAHT is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This unidirectional, 4-channel Zener-type device operates with a 5.5V reverse standoff voltage and 8.5V maximum clamping voltage in a surface-mount SOT-23-5 package. The SP0504BAHT is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

SP0504BAHT

Littelfuse Inc.In Stock: 5293SP0504BAHT Datasheet

Current PartRFQ

SP0504BAHTG

Littelfuse Inc.In Stock: 52484SP0504BAHTG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP0504BAHT is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 5.5V (Max)
• Voltage - Clamping (Max) @ Ipp: 8.5V
• Unidirectional Channels: 4
• Package / Case: SC-74A, SOT-753 (SOT-23-5)
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Type: Zener
• Applications: General Purpose

The SP0504BAHTG qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status: SP0504BAHTG is active and available, whereas SP0504BAHT is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SP0504BAHTG is the direct substitute for the obsolete SP0504BAHT. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The SP0504BAHTG is currently in active production with 52,410 units in stock, compared to the SP0504BAHT's obsolete status with 5,275 units remaining.

A significant compliance advantage exists with SP0504BAHTG: it meets ROHS3 compliance requirements, whereas the SP0504BAHT is RoHS non-compliant. For new designs or applications subject to RoHS regulations, SP0504BAHTG is the required selection. Both parts maintain identical moisture sensitivity levels (MSL 1, Unlimited) and ECCN classification (EAR99).

Frequently Asked Questions (FAQ)

Q: Can SP0504BAHTG replace SP0504BAHT in existing designs?

A: Yes. SP0504BAHTG is a direct substitute with identical voltage ratings (5.5V reverse standoff, 8.5V clamping), channel configuration (4 unidirectional channels), and SOT-23-5 package. No circuit modifications are required.

Q: What is the primary reason to switch from SP0504BAHT to SP0504BAHTG?

A: SP0504BAHT is obsolete with limited remaining inventory. SP0504BAHTG is the active equivalent with full production availability. Additionally, SP0504BAHTG meets ROHS3 compliance, whereas SP0504BAHT does not.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are specified identically for reverse standoff voltage (5.5V Max), clamping voltage (8.5V Max), operating temperature range (-40°C to 85°C), and all other electrical parameters.

Q: Is the package identical between SP0504BAHT and SP0504BAHTG?

A: Yes. Both use the SC-74A / SOT-753 package in SOT-23-5 configuration. PCB footprints and assembly processes are identical.

Q: What is the difference between the packaging options for SP0504BAHTG?

A: SP0504BAHTG is supplied in Cut Tape (CT) and Digi-Reel® formats. SP0504BAHT packaging information was not specified. Verify packaging requirements for your procurement process.