V47ZC05P Equivalent & Substitute Parts

Part Overview

The V47ZC05P is a 47V 100A 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 762 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	100 A
Maximum AC Volts	30 V
Maximum DC Volts	38 V
Energy	0.4 J
Mounting Type	Through Hole
Package / Case	Disc 5mm
Operating Temperature	-55°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The V47ZA05P qualifies as a parametric equivalent to the V47ZC05P based on the following criteria:

Identical varistor voltage rating: 47 V (typical)
Identical surge current capacity: 100 A
Identical maximum AC and DC voltage ratings: 30 V AC / 38 V DC
Identical energy dissipation: 0.4 J
Identical mounting type and package: Through Hole Disc 5mm
Identical operating temperature range: -55°C ~ 85°C
Identical compliance certifications: ROHS3, REACH Unaffected

Both parts belong to the Littelfuse varistor product line and share the same electrical performance envelope, making them interchangeable for circuit protection applications requiring these specifications.

Parameter Comparison

Parameter	V47ZC05P (Main)	V47ZA05P (Substitute)
Manufacturer	Littelfuse Inc.	Littelfuse
Series	ZC	ZA
Category	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)
Varistor Voltage (Min)	42.3 V	42.3 V
Varistor Voltage (Typ)	47 V	47 V
Varistor Voltage (Max)	51.7 V	51.7 V
Current - Surge	100 A	100 A
Maximum AC Volts	30 V	30 V
Maximum DC Volts	38 V	38 V
Energy	0.4 J	0.4 J
Number of Circuits	1	1
Capacitance @ 1 MHz	585 pF	585 pF
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C
Mounting Type	Through Hole	Through Hole
Package / Case	Disc 5mm	Disc 5mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

Both the V47ZC05P and V47ZA05P are active production components from Littelfuse with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on inventory availability and lead time requirements. The V47ZA05P currently has higher inventory (1152 units) compared to the V47ZC05P (762 units), making it suitable for applications where supply assurance is a priority. Both parts meet identical electrical and mechanical specifications and are suitable for direct substitution in circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can the V47ZA05P replace the V47ZC05P in existing designs?

A: Yes. Both parts share identical electrical ratings (47V typical varistor voltage, 100A surge current), voltage limits (30V AC / 38V DC), energy dissipation (0.4J), and physical packaging (Through Hole Disc 5mm). They are direct substitutes.

Q: What is the difference between the ZC and ZA series designations?

A: The series designation indicates different product lines within Littelfuse's varistor portfolio. Both series meet the same electrical and mechanical specifications for this 47V 100A rating.

Q: Are there any compliance differences between these parts?

A: No. Both parts carry identical certifications: ROHS3 compliant, REACH unaffected, MSL rating 1 (unlimited), and EAR99 export classification.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use identical through-hole mounting with 5mm disc packaging, allowing direct PCB footprint compatibility without layout modifications.

Q: What operating conditions apply to both parts?

A: Both parts operate across -55°C to 85°C ambient temperature range with identical capacitance characteristics (585 pF @ 1 MHz) and energy handling capacity.

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