V47ZC1P Equivalent & Substitute Parts

Part Overview

The V47ZC1P is a 47V 250A 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 active in production with 814 units in stock. Equivalent substitute parts are identified based on matching electrical specifications and mechanical compatibility to support procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	47 V
Current - Surge	250 A
Maximum AC Volts	30 V
Maximum DC Volts	38 V
Energy	1.8 J
Capacitance @ 1 MHz	1245 pF
Operating Temperature Range	-55°C to 85°C
Mounting Type	Through Hole
Package / Case	Disc 7mm
Number of Circuits	1

Substitute Part Grouping Explanation

Substitute parts for the V47ZC1P are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

Varistor voltage rating (42.3 V minimum to 51.7 V maximum)
Surge current capacity (250 A)
Energy absorption (1.8 J)
Mounting configuration (Through Hole)
Package form factor (Disc 7mm)
Operating temperature range (-55°C to 85°C)
Capacitance characteristics (1245 pF @ 1 MHz)

All identified substitutes match these specifications exactly, ensuring direct replacement capability in circuit applications without design modification.

Parameter Comparison

Parameter	V47ZC1P	V47ZA1P	V47ZA1PX2855
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse
Series	ZC	ZA	ZA
Varistor Voltage (Min)	42.3 V	42.3 V	42.3 V
Varistor Voltage (Typ)	47 V	47 V	47 V
Varistor Voltage (Max)	51.7 V	51.7 V	51.7 V
Current - Surge	250 A	250 A	250 A
Maximum AC Volts	30 V	30 V	30 V
Maximum DC Volts	38 V	38 V	38 V
Energy	1.8 J	1.8 J	1.8 J
Capacitance @ 1 MHz	1245 pF	1245 pF	1245 pF
Operating Temperature	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Disc 7mm	Disc 7mm	Disc 7mm
Number of Circuits	1	1	1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active
Inventory (Pcs)	814	15900	5364

Engineering Selection Recommendations

All three parts—V47ZC1P, V47ZA1P, and V47ZA1PX2855—are functionally equivalent for transient voltage suppression applications. Selection should be based on the following factors:

Compliance & Certification: All parts maintain ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited), meeting regulatory requirements for industrial and commercial applications.

Product Status: All parts are active in production, ensuring long-term availability and supply chain stability.

Inventory Availability: V47ZA1P offers the highest stock level at 15,900 units, followed by V47ZA1PX2855 at 5,364 units, and V47ZC1P at 814 units. Inventory considerations may influence procurement decisions for high-volume requirements.

Series Designation: V47ZC1P belongs to the ZC series, while V47ZA1P and V47ZA1PX2855 belong to the ZA series. Both series are manufactured by Littelfuse and meet identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can V47ZA1P directly replace V47ZC1P in existing designs?

A: Yes. Both parts share identical electrical specifications (47V typical varistor voltage, 250A surge current, 1.8J energy) and mechanical form factor (Disc 7mm, through-hole mounting). No circuit redesign is required.

Q: What is the difference between V47ZC1P and V47ZA1PX2855?

A: Both parts are parametrically equivalent with matching voltage ratings, surge current capacity, energy absorption, and package specifications. The primary difference is series designation (ZC vs. ZA) and inventory availability. V47ZA1PX2855 is part of the ZA series.

Q: Are all three parts suitable for the same temperature range?

A: Yes. All three parts operate across the identical temperature range of -55°C to 85°C, ensuring compatibility in thermal environments.

Q: Do these parts have the same capacitance characteristics?

A: Yes. All three parts exhibit 1245 pF capacitance at 1 MHz, maintaining consistent high-frequency performance across substitutions.

Q: Which part should I select for new designs?

A: Selection should prioritize product status (all active), compliance certifications (all ROHS3 compliant and REACH unaffected), and inventory availability. V47ZA1P offers the highest stock level for high-volume applications.

Q: Are there any restrictions on substituting between these parts?

A: No restrictions exist. All three parts are direct substitutes with identical electrical performance, mechanical compatibility, and regulatory compliance. Substitution is valid in any application where one part is specified.

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