UPT33E3/TR7 Equivalent & Substitute Parts

Part Overview

The UPT33E3/TR7 is a unidirectional Zener-type Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient voltage protection applications. This component features a 33V reverse standoff voltage with a 56.7V maximum clamping voltage and 2.65A peak pulse current capability in a surface-mount Powermite 1 (DO-216AA) package.

The UPT33E3/TR7 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this TVS diode specification.

Substiute Parts

UPT33E3/TR7

Microchip TechnologyIn Stock: 842UPT33E3/TR7 Datasheet

Current PartRFQ

UPT33E3/TR13

Microchip TechnologyIn Stock: 1016UPT33E3/TR13 Datasheet

DirectRFQ

UPT33RE3

Microsemi CorporationIn Stock: 893UPT33RE3 Datasheet

DirectRFQ

UPT33RE3/TR13

Microchip TechnologyIn Stock: 1051UPT33RE3/TR13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UPT33E3/TR7 are determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters establish substitution validity:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 33V
• Voltage - Breakdown (Min): 36.8V
• Voltage - Clamping (Max) @ Ipp: 56.7V
• Current - Peak Pulse (10/1000µs): 2.65A
• Power - Peak Pulse: 1000W
• Operating Temperature Range: -65°C to 150°C (TJ)
• Package / Case: DO-216AA
• Mounting Type: Surface Mount
• Type: Zener
• Unidirectional Channels: 1

All identified substitute parts maintain identical electrical specifications and mechanical compatibility. Substitutes differ only in packaging configuration (Tape & Reel versus bulk), manufacturer designation, or product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: UPT33E3/TR13

The UPT33E3/TR13 is the direct functional equivalent of the UPT33E3/TR7. Both parts are manufactured by Microchip Technology and share identical electrical and mechanical specifications. The UPT33E3/TR13 is classified as Active product status, ensuring continued availability and manufacturing support. This part is ROHS3 Compliant and carries Tape & Reel (TR13) packaging, suitable for automated assembly processes.

Secondary Recommendation: UPT33RE3/TR13

The UPT33RE3/TR13 provides full electrical and mechanical equivalence with identical performance parameters. Manufactured by Microchip Technology, this part is Active status and ROHS3 Compliant. The TR13 packaging designation indicates Tape & Reel configuration.

Alternative Option: UPT33RE3

The UPT33RE3, manufactured by Microsemi Corporation, maintains complete electrical and mechanical compatibility. This part is Active status and ROHS3 Compliant. Packaging configuration differs from the main part number; verify packaging requirements for your application.

All substitute parts satisfy the electrical performance requirements, operating temperature range, and mechanical form factor of the UPT33E3/TR7. Selection among active alternatives should be based on packaging requirements, supply chain availability, and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can UPT33E3/TR13 be used as a direct replacement for UPT33E3/TR7?

A: Yes. Both parts are manufactured by Microchip Technology and share identical electrical specifications (33V standoff, 36.8V breakdown minimum, 56.7V clamping maximum, 2.65A peak pulse current) and mechanical packaging (DO-216AA surface mount). The primary difference is product status: UPT33E3/TR7 is obsolete while UPT33E3/TR13 is active. The TR13 designation indicates Tape & Reel packaging versus the TR7 configuration of the original part.

Q: What is the difference between UPT33E3/TR13 and UPT33RE3/TR13?

A: Both parts are electrically and mechanically identical with matching voltage ratings, current ratings, and DO-216AA packaging. The primary difference is the internal part number designation (E3 versus RE3). Both are manufactured by Microchip Technology, are Active status, and are ROHS3 Compliant.

Q: Can I use UPT33RE3 (without TR13 designation) as a substitute?

A: UPT33RE3 provides full electrical equivalence and mechanical compatibility in the DO-216AA package. However, the packaging configuration differs from the TR13 variants. Verify that your assembly process and procurement requirements accommodate the packaging type of UPT33RE3 before selection.

Q: Are all substitute parts ROHS3 Compliant?

A: Yes. UPT33E3/TR13, UPT33RE3, and UPT33RE3/TR13 are all ROHS3 Compliant. The original UPT33E3/TR7 does not list RoHS status in the provided specifications.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All parts, including the main part number and all substitutes, have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Are there any differences in operating temperature range among the substitute parts?

A: No. All parts operate across the identical temperature range of -65°C to 150°C (TJ).

Q: Which substitute part should I select for new designs?

A: For new designs, select from the Active status parts: UPT33E3/TR13, UPT33RE3, or UPT33RE3/TR13. All three provide equivalent performance. Choose based on packaging requirements (Tape & Reel versus bulk) and supply chain availability.