CZRF52C10 Zener Diode Equivalent & Substitute Parts

Part Overview

The CZRF52C10 is an active-status Zener diode manufactured by Comchip Technology, designed for voltage regulation and protection applications. This 10 V, 200 mW surface mount component operates across the industrial temperature range of -55°C to 125°C and is packaged in the 1005/SOD-323F form factor. Substitute parts are identified when inventory constraints, supply chain disruptions, or procurement requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	10	V
Tolerance	±5%	%
Power - Max	200	mW
Impedance (Max)	15	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 7.5 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-55 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	1005 (2512 Metric)	—
Supplier Device Package	1005/SOD-323F	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the CZRF52C10 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Zener voltage: 10 V nominal
Tolerance: ±5%
Maximum power dissipation: 200 mW
Maximum impedance: 15 Ohms
Reverse leakage current: 100 nA @ 7.5 V
Forward voltage: 900 mV maximum @ 10 mA

Mechanical & Environmental Specifications:

Mounting type: Surface Mount
Package designation: 1005/SOD-323F
Operating temperature range: -55°C to 125°C
Moisture sensitivity level: 1 (Unlimited)

Compliance & Regulatory:

RoHS3 Compliant
REACH Unaffected status

Substitute parts must match all parameters listed above without deviation. Parts meeting these criteria are classified as parametric equivalents and are suitable for direct replacement in circuit designs.

Parameter Comparison

Parameter	CZRF52C10	CZRFR52C10	Match Status
Manufacturer	Comchip Technology	Comchip Technology	Identical
Category	Diodes, Zener	Diodes, Zener	Identical
Voltage - Zener (Nom)	10 V	10 V	Identical
Tolerance	±5%	±5%	Identical
Power - Max	200 mW	200 mW	Identical
Impedance (Max)	15 Ohms	15 Ohms	Identical
Current - Reverse Leakage @ Vr	100 nA @ 7.5 V	100 nA @ 7.5 V	Identical
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	Identical
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	1005 (2512 Metric)	1005 (2512 Metric)	Identical
Supplier Device Package	1005/SOD-323F	1005/SOD-323F	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

Both CZRF52C10 and CZRFR52C10 are active-status products manufactured by Comchip Technology with full ROHS3 compliance and REACH unaffected status. Selection between these parts is based on availability and procurement requirements rather than technical differentiation.

CZRF52C10 is the primary part number with current inventory of 2400 pieces.

CZRFR52C10 is the parametric equivalent substitute with current inventory of 1036 pieces.

Both parts satisfy identical electrical, mechanical, thermal, and regulatory requirements. Circuit-level performance and reliability characteristics are equivalent. Selection should be determined by supply chain availability, lead time requirements, and inventory management priorities.

Frequently Asked Questions (FAQ)

Q: Can CZRFR52C10 be used as a direct replacement for CZRF52C10 in production?

A: Yes. CZRFR52C10 is a parametric equivalent with identical electrical specifications (10 V nominal, 200 mW, ±5% tolerance), mechanical packaging (1005/SOD-323F), and environmental ratings (-55°C to 125°C). Direct substitution is supported without circuit redesign or re-qualification.

Q: Are there differences in the base product numbers?

A: The main part uses base product number CZRF52, while the substitute uses CZRFR52. This designation difference does not affect electrical or mechanical compatibility. Both derive from the same product family and share identical parametric specifications.

Q: What compliance certifications apply to both parts?

A: Both CZRF52C10 and CZRFR52C10 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. No additional handling or storage precautions are required beyond standard component practices.

Q: Is the 1005/SOD-323F package identical for both parts?

A: Yes. Both parts use the identical 1005 (2512 Metric) package designation with SOD-323F supplier device package specification. PCB footprints, solder reflow profiles, and assembly processes are interchangeable.

Q: What is the impedance specification and why does it matter?

A: Maximum impedance is specified at 15 Ohms for both parts. This parameter affects transient response and voltage regulation performance in circuit applications. Identical impedance ensures equivalent dynamic behavior.

Q: Can these parts be mixed in the same production batch?

A: Yes. Both parts meet identical specifications and certifications. Mixed sourcing is permissible from a technical standpoint, though inventory tracking and component traceability procedures should be followed per standard manufacturing practices.

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