V320LS7P Equivalent & Substitute Parts

Part Overview

The V320LS7P is a 510 V, 1.2 kA disc varistor manufactured by Littelfuse Inc., 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 877 units available in stock. Substitute parts are identified when packaging or series variations exist while maintaining identical electrical and mechanical specifications.

Substiute Parts

V320LS7P

Littelfuse Inc.In Stock: 948V320LS7P Datasheet

Current PartRFQ

V320LT7P

LittelfuseIn Stock: 2088V320LT7P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V320LS7P has one identified substitute: V320LT7P. Both parts are manufactured by Littelfuse and share identical electrical characteristics across all critical parameters: varistor voltage range (459 V minimum to 561 V maximum), surge current rating (1.2 kA), energy dissipation (25 J), and physical form factor (7mm disc, through-hole mounting). The substitution is valid based on the following matching parameters:

• Varistor Voltage (Min/Typ/Max): 459 V / 510 V / 561 V
• Current - Surge: 1.2 kA
• Maximum AC/DC Volts: 320 V / 420 V
• Energy: 25 J
• Package / Case: Disc 7mm
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 85°C
• Capacitance @ 1 MHz: 65 pF

The only difference between these parts is the packaging format: V320LS7P is supplied in Tape & Reel (TR), while V320LT7P is supplied in Cut Tape (CT).

Parameter Comparison

Engineering Selection Recommendations

Both V320LS7P and V320LT7P are active production components from Littelfuse with identical electrical performance and compliance certifications. Selection between these parts depends on procurement and assembly requirements:

V320LS7P (Tape & Reel packaging) is suitable for high-volume automated assembly operations where tape-fed component handling is standard.

V320LT7P (Cut Tape packaging) is suitable for lower-volume applications, manual assembly, or situations where individual component access is required without tape infrastructure.

Both parts meet ROHS3 compliance and REACH unaffected status, making them suitable for equivalent circuit applications without regulatory differentiation.

Frequently Asked Questions (FAQ)

Q: Can V320LT7P replace V320LS7P in my circuit? A: Yes. Both parts have identical electrical specifications, including varistor voltage (510 V typical), surge current rating (1.2 kA), energy dissipation (25 J), and operating temperature range (-55°C to 85°C). The only difference is packaging format.

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 provides components on tape segments, typically used for manual assembly or lower-volume applications.

Q: Are there any compliance differences between these parts? A: No. Both V320LS7P and V320LT7P carry identical certifications: ROHS3 compliant, REACH unaffected, MSL 1 (unlimited moisture sensitivity level), and EAR99 export classification.

Q: Can I use these parts interchangeably in my PCB design? A: Yes, provided your assembly process accommodates the packaging format. The physical form factor (7mm disc, through-hole mounting) and electrical characteristics are identical, ensuring direct functional equivalence.

Q: Which part should I specify for new designs? A: Selection depends on your manufacturing process. For automated assembly, specify V320LS7P (Tape & Reel). For manual assembly or lower volumes, specify V320LT7P (Cut Tape). Both are active production parts with equivalent performance.