V33ZU5P Equivalent & Substitute Parts

Part Overview

The V33ZU5P is a 33V 1kA disc varistor manufactured by Littelfuse, designed for transient voltage suppression in through-hole applications. This component operates across a temperature range of -55°C to 85°C and is RoHS3 compliant. The part is currently active in production with 897 units in stock. Substitute parts are identified when electrical parameters, mechanical form factor, and compliance certifications remain equivalent, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

V33ZU5P

LittelfuseIn Stock: 952V33ZU5P Datasheet

Current PartRFQ

V33ZT5P

Littelfuse Inc.In Stock: 2070V33ZT5P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V33ZT5P qualifies as a parametric equivalent to the V33ZU5P based on the following criteria:

Electrical Parameters Match:

• Varistor voltage range: 29.7V (Min) to 36.3V (Max), with 33V typical
• Surge current rating: 1 kA
• Maximum DC voltage: 26V
• Maximum AC voltage: 20V
• Energy dissipation: 6J
• Capacitance: 9290 pF @ 1 MHz

Mechanical Compatibility:

• Package form factor: Disc 14mm
• Mounting type: Through Hole
• Number of circuits: 1

Compliance & Certification:

• RoHS3 compliant
• Operating temperature: -55°C to 85°C
• Moisture sensitivity level: 1 (Unlimited)
• REACH status: Unaffected

The only difference between these parts is the packaging format: V33ZU5P is supplied in Tape & Reel (TR), while V33ZT5P is supplied in Cut Tape (CT). This distinction affects procurement and assembly processes but does not alter electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the V33ZU5P and V33ZT5P are active production components from Littelfuse with identical electrical and mechanical specifications. Selection between these parts should be based on procurement and assembly requirements:

V33ZU5P (Tape & Reel): Suitable for high-volume automated assembly operations where tape-and-reel packaging integrates directly with pick-and-place equipment.

V33ZT5P (Cut Tape): Suitable for lower-volume applications, manual assembly, or situations where tape-and-reel packaging is not required. This variant currently has higher inventory availability (1998 units versus 897 units).

Both parts meet RoHS3 compliance and REACH requirements. The choice between them does not affect circuit performance, thermal characteristics, or voltage suppression capability.

Frequently Asked Questions (FAQ)

Q: Can V33ZT5P replace V33ZU5P in my circuit design?

A: Yes. The V33ZT5P is electrically and mechanically identical to the V33ZU5P. The only difference is packaging format (Cut Tape versus Tape & Reel). Circuit performance remains unchanged.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on a continuous reel suitable for automated assembly lines. Cut Tape (CT) packaging provides components on tape segments, typically used for manual assembly or lower-volume production. Both formats contain the same component.

Q: Are both parts RoHS3 compliant?

A: Yes. Both V33ZU5P and V33ZT5P are RoHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these varistors?

A: Both parts operate across -55°C to 85°C ambient temperature range.

Q: Can I use these parts interchangeably in my PCB assembly process?

A: Electrical and mechanical interchangeability is confirmed. Assembly process compatibility depends on your equipment: Tape & Reel format requires compatible pick-and-place machinery, while Cut Tape format supports manual or semi-automated placement.

Q: What surge current rating do these varistors handle?

A: Both parts are rated for 1 kA surge current with 6J energy dissipation capacity.