Equivalent & Substitute Parts for V33ZC05P

Part Overview

The V33ZC05P is a 33 V Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc., designed for transient overvoltage protection in electronic circuits. This through-hole disc component rated at 100 A surge current is classified as Active product status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across all critical parameters, enabling seamless component interchange in circuit designs.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	33 V
Current - Surge	100 A
Maximum DC Volts	26 V
Maximum AC Volts	20 V
Energy	0.3 J
Mounting Type	Through Hole
Package / Case	Disc 5mm
Operating Temperature Range	-55°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The V33ZA05P qualifies as a parametric equivalent to the V33ZC05P based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

Varistor voltage rating (typical): 33 V
Surge current capacity: 100 A
Maximum DC voltage: 26 V
Maximum AC voltage: 20 V
Energy dissipation: 0.3 J
Mounting configuration: Through Hole
Package form factor: Disc 5mm
Operating temperature range: -55°C ~ 85°C
RoHS3 compliance status

Both parts belong to the Littelfuse Inc. varistor product line and maintain identical performance boundaries across all specified parameters.

Parameter Comparison

Parameter	V33ZC05P (Main Part)	V33ZA05P (Substitute)
Manufacturer	Littelfuse Inc.	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)
Series	ZC	ZA
Varistor Voltage (Min)	29.7 V	29.7 V
Varistor Voltage (Typ)	33 V	33 V
Varistor Voltage (Max)	36.3 V	36.3 V
Current - Surge	100 A	100 A
Maximum DC Volts	26 V	26 V
Maximum AC Volts	20 V	20 V
Energy	0.3 J	0.3 J
Number of Circuits	1	1
Capacitance @ 1 MHz	790 pF	790 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
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

Both V33ZC05P and V33ZA05P maintain Active product status with full regulatory compliance. The V33ZA05P is available in higher inventory quantity (4101 Pcs) compared to the V33ZC05P (1099 Pcs). Component selection between these two parts should be based on availability and supply chain requirements, as electrical performance and mechanical specifications are identical. Both parts satisfy ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for end-use applications.

Frequently Asked Questions (FAQ)

Q: Can V33ZA05P replace V33ZC05P in existing circuit designs?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters, including varistor voltage rating, surge current capacity, package form factor, and operating temperature range.

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

A: The series designation reflects internal manufacturing or product line categorization within Littelfuse Inc. Both series maintain identical electrical performance and mechanical specifications for this 33 V, 100 A varistor configuration.

Q: Are there any compatibility concerns with through-hole PCB mounting?

A: No. Both parts use identical through-hole disc 5mm packaging, ensuring direct mechanical and electrical compatibility with existing PCB layouts and footprints.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both V33ZC05P and V33ZA05P are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited).

Q: What is the operating temperature range for both parts?

A: Both parts operate across -55°C to 85°C ambient temperature range, suitable for industrial and commercial applications.

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