V47ZS7P Equivalent & Substitute Parts

Part Overview

The V47ZS7P is a 47V 1kA disc varistor manufactured by Littelfuse, designed for transient voltage suppression applications. This through-hole component operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently in active production status with 714 units available in stock. Equivalent substitute parts are identified based on matching electrical specifications and mechanical form factors to ensure direct functional replacement in circuit designs.

Substiute Parts

V47ZS7P

LittelfuseIn Stock: 801V47ZS7P Datasheet

Current PartRFQ

V47ZT7P

Littelfuse Inc.In Stock: 798V47ZT7P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V47ZS7P are identified based on the following critical parameters that determine functional equivalence:

• Varistor voltage rating (42.3 V minimum to 51.7 V maximum)
• Surge current capacity (1 kA)
• Energy absorption (8.8 J)
• Mounting type (Through Hole)
• Physical package form factor (Disc 14mm)
• Operating temperature range (-55°C ~ 85°C)
• Regulatory compliance (ROHS3)

The V47ZT7P qualifies as a parametric equivalent based on identical electrical specifications and mechanical compatibility. The primary difference is packaging format: V47ZS7P is supplied in Tape & Reel (TR) format, while V47ZT7P is supplied in Cut Tape (CT) format. Both parts maintain the same electrical performance characteristics and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

Both the V47ZS7P and V47ZT7P are active production components from Littelfuse with identical electrical and mechanical specifications. Selection between these parts is determined by procurement and assembly requirements rather than functional performance.

The V47ZS7P in Tape & Reel format is suitable for high-volume automated assembly operations. The V47ZT7P in Cut Tape format accommodates lower-volume production runs or manual assembly processes. Both parts meet ROHS3 compliance and REACH requirements, ensuring regulatory compatibility across global markets.

Frequently Asked Questions (FAQ)

Q: Can V47ZT7P replace V47ZS7P in existing designs?

A: Yes. The V47ZT7P is a direct parametric equivalent with identical electrical specifications, surge current capacity, energy absorption, and operating temperature range. The physical package dimensions and mounting type are identical. The only difference is the supply format (Cut Tape versus Tape & Reel).

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

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on a reel, optimized for automated pick-and-place assembly. Cut Tape (CT) packaging supplies the same components on tape segments, suitable for manual handling or lower-volume assembly processes. Both formats contain identical components.

Q: Are there any compliance differences between V47ZS7P and V47ZT7P?

A: No. Both parts carry identical ROHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1 - Unlimited). They share the same ECCN and HTSUS classifications.

Q: What determines if a varistor can substitute for the V47ZS7P?

A: Substitution requires matching the varistor voltage rating (47V nominal, 42.3V to 51.7V range), surge current capacity (1 kA), energy absorption (8.8J), operating temperature range (-55°C to 85°C), and physical form factor (Through Hole, Disc 14mm). Electrical performance under transient conditions must remain within specification.

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

A: Interchangeability depends on your assembly equipment. If your process uses automated pick-and-place machinery, the Tape & Reel format (V47ZS7P) is standard. If manual assembly or lower-volume production is used, Cut Tape format (V47ZT7P) may be more practical. Electrically and mechanically, both parts are fully interchangeable.