TPSMP33HM3/84A Equivalent & Substitute Parts

Part Overview

The TPSMP33HM3/84A is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in automotive-grade circuits requiring transient voltage protection. The part operates across a temperature range of -65°C to 185°C and meets AEC-Q101 automotive qualification standards.

The TPSMP33HM3/84A is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component.

Substiute Parts

TPSMP33HM3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1044TPSMP33HM3/84A Datasheet

Current PartRFQ

TPSMP33AHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 6196TPSMP33AHM3_A/H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMP33HM3/84A is determined by the following critical electrical and mechanical parameters:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 26.8V
• Voltage - Breakdown (Min): 29.7V
• Voltage - Clamping (Max) @ Ipp: 47.7V
• Current - Peak Pulse (10/1000µs): 8.4A
• Power - Peak Pulse: 400W

Mechanical Parameters:

• Package / Case: DO-220AA (SMP)
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

Compliance Parameters:

• Operating Temperature Range: -65°C ~ 185°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

Substitute parts must maintain compatibility across these parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The TPSMP33AHM3_A/H qualifies as a direct substitute for the TPSMP33HM3/84A based on the following criteria:

Compliance Alignment: Both parts maintain identical automotive-grade classification and AEC-Q101 qualification, ensuring compatibility with automotive circuit protection requirements. Both are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Package and Mounting Compatibility: Both components utilize the DO-220AA (SMP) surface mount package, enabling direct PCB layout compatibility without redesign.

Electrical Performance: The TPSMP33AHM3_A/H demonstrates comparable electrical characteristics within acceptable engineering tolerances. The substitute exhibits a slightly higher reverse standoff voltage (28.2V vs. 26.8V) and improved peak pulse current capability (8.8A vs. 8.4A), while maintaining equivalent power dissipation (400W).

Product Availability: The TPSMP33AHM3_A/H carries active product status with 6100 units in stock, compared to the obsolete status of the original part. This substitution addresses supply chain continuity for ongoing production and field replacement requirements.

Frequently Asked Questions (FAQ)

Q: Can the TPSMP33AHM3_A/H be used as a direct replacement for the TPSMP33HM3/84A?

A: Yes. Both parts share identical package geometry (DO-220AA SMP), mounting type (surface mount), and automotive qualification (AEC-Q101). Electrical parameters are within compatible ranges for transient voltage suppression applications.

Q: What are the key electrical differences between these parts?

A: The TPSMP33AHM3_A/H exhibits a reverse standoff voltage of 28.2V compared to 26.8V in the original part, and a peak pulse current of 8.8A versus 8.4A. Clamping voltage is 45.7V versus 47.7V. These variations remain within acceptable substitution tolerances for TVS diode applications.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the TPSMP33HM3/84A and TPSMP33AHM3_A/H are automotive-grade components with AEC-Q101 qualification, operating across the identical temperature range of -65°C to 185°C (TJ).

Q: What is the packaging difference between these parts?

A: The TPSMP33HM3/84A is supplied in standard packaging, while the TPSMP33AHM3_A/H is available in Tape & Reel (TR) format. Both utilize the DO-220AA (SMP) package case. Tape & Reel packaging is standard for high-volume surface mount assembly.

Q: Why is the original part listed as obsolete?

A: The TPSMP33HM3/84A has reached end-of-life status. The TPSMP33AHM3_A/H represents the active equivalent from the same manufacturer series, ensuring continued availability and support for this protection function.