Equivalent & Substitute Parts for V33ZU70P

Part Overview

The V33ZU70P is a 33 V, 2 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc package (20mm). This component is designed for transient voltage protection in electronic circuits and is currently in active production status. Substitute parts are identified when identical electrical and mechanical specifications are maintained across different packaging formats, allowing for component interchangeability in design and procurement scenarios.

Substiute Parts

V33ZU70P

Littelfuse Inc.In Stock: 822V33ZU70P Datasheet

Current PartRFQ

V33ZT70P

Littelfuse Inc.In Stock: 1351V33ZT70P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V33ZU70P has one identified substitute: V33ZT70P. This substitution is valid based on the following criteria:

Electrical Parameters (Identical):

• Varistor voltage range: 29.7 V (Min) to 36.3 V (Max), with 33 V typical
• Maximum AC voltage: 21 V
• Maximum DC voltage: 27 V
• Surge current rating: 2 kA
• Energy dissipation: 150 J
• Capacitance: 13000 pF @ 1 MHz
• Number of circuits: 1

Mechanical Parameters (Identical):

• Package type: Disc 20mm
• Mounting type: Through Hole
• Operating temperature range: -55°C to 85°C

Compliance & Certification (Identical):

• RoHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8533.40.4000

Difference:

• Packaging format: V33ZU70P is supplied in Tape & Reel (TR) format; V33ZT70P is supplied in Cut Tape (CT) format

Parameter Comparison

Engineering Selection Recommendations

Both V33ZU70P and V33ZT70P are active production components from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by procurement and assembly requirements:

V33ZU70P (Tape & Reel): Suitable for high-volume automated assembly operations where tape and reel packaging supports pick-and-place equipment integration.

V33ZT70P (Cut Tape): Suitable for lower-volume applications, manual assembly, or situations where cut tape format is preferred for component handling and storage.

Both parts meet ROHS3 compliance and REACH requirements. The choice between these substitutes does not affect circuit performance, thermal characteristics, or voltage protection capability.

Frequently Asked Questions (FAQ)

Q: Can V33ZT70P replace V33ZU70P in my circuit design?

A: Yes. Both parts have identical electrical ratings (33 V typical varistor voltage, 2 kA surge current, 150 J energy), mechanical dimensions (Disc 20mm through-hole), and operating temperature range (-55°C to 85°C). The only difference is the packaging format (Tape & Reel versus Cut Tape).

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 pick-and-place assembly. Cut Tape (CT) packaging supplies components on individual tape segments, typically used for manual assembly or lower-volume applications. Both formats contain the same component.

Q: Are there any compliance or certification differences between these parts?

A: No. Both V33ZU70P and V33ZT70P carry identical certifications: ROHS3 Compliant, REACH Unaffected, MSL 1 (Unlimited), ECCN EAR99, and HTSUS 8533.40.4000.

Q: Which part should I specify for my design?

A: Specify based on your assembly process. For automated assembly lines, use V33ZU70P (Tape & Reel). For manual assembly or lower-volume production, use V33ZT70P (Cut Tape). Both are electrically and mechanically interchangeable.

Q: Do these parts have the same surge current rating?

A: Yes. Both V33ZU70P and V33ZT70P are rated for 2 kA surge current with 150 J energy dissipation capacity.