CZRF10VB Zener Diode 10V 200mW Equivalent & Substitute Parts

Part Overview

The CZRF10VB is a surface mount Zener diode manufactured by Comchip Technology, rated at 10 V nominal voltage with 200 mW maximum power dissipation. This component is classified as Active product status and is RoHS3 compliant. The CZRF10VB is packaged in 1005/SOD-323F form factor for high-density circuit applications.

Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for Zener diodes in this voltage class. Substitution becomes necessary due to inventory availability, lead time constraints, or design flexibility requirements across manufacturing sources.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	10	V
Tolerance	±3%	-
Power - Max	200	mW
Impedance (Max)	15	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 8 V	-
Voltage - Forward (Max) @ If	900 mV @ 10 mA	-
Operating Temperature Range	-55°C to 125°C	-
Mounting Type	Surface Mount	-
Package / Case	1005 (2512 Metric) / SOD-323F	-
RoHS Status	ROHS3 Compliant	-
MSL Rating	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the CZRF10VB is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage (Nom): 10 V (exact match required)
Package type: SOD-323F surface mount (mechanical compatibility)
Mounting type: Surface Mount (assembly process compatibility)
RoHS3 compliance status (regulatory requirement)
MSL rating: 1 (Unlimited) (moisture sensitivity compatibility)

Secondary Compatibility Parameters:

Tolerance range: ±2% to ±5% (acceptable variance from ±3%)
Power rating: 200 mW minimum (substitutes may exceed this rating)
Impedance (Max): 10 to 15 Ohms (acceptable range)
Reverse leakage current: 100 to 200 nA (acceptable range)
Operating temperature: -55°C to 150°C (acceptable range)

All four substitute parts meet the primary matching criteria. Differences in power dissipation, tolerance, and temperature range represent design margins that do not prevent functional substitution in applications designed for the CZRF10VB.

Parameter Comparison

Parameter	CZRF10VB (Main)	BZX84J-B10,115	BZX84J-C10,115	PZU10B,115	TDZ10J,115
Manufacturer	Comchip Technology	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Voltage - Zener (Nom)	10 V	10 V	10 V	10 V	10 V
Tolerance	±3%	±2%	±5%	±5%	±2%
Power - Max	200 mW	550 mW	550 mW	310 mW	500 mW
Impedance (Max)	15 Ohms	10 Ohms	10 Ohms	10 Ohms	10 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 8 V	200 nA @ 7 V	200 nA @ 7 V	100 nA @ 7 V	200 nA @ 7 V
Voltage - Forward (Max) @ If	900 mV @ 10 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA
Operating Temperature	-55°C to 125°C	-65°C to 150°C	-65°C to 150°C	-65°C to 150°C	-55°C to 150°C
Package / Case	1005 / SOD-323F	SC-90 / SOD-323F	SC-90 / SOD-323F	SC-90 / SOD-323F	SC-90 / SOD-323F
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

BZX84J-B10,115 (Nexperia USA Inc.)

This substitute provides 550 mW power rating with ±2% tolerance and AEC-Q101 automotive qualification. The extended operating temperature range (-65°C to 150°C) exceeds the CZRF10VB specification. Impedance is reduced to 10 Ohms, providing improved voltage regulation characteristics. Suitable for applications requiring automotive-grade reliability and higher power dissipation margins.

BZX84J-C10,115 (Nexperia USA Inc.)

This substitute offers 550 mW power rating with ±5% tolerance and AEC-Q101 automotive qualification. Operating temperature range extends to -65°C to 150°C. The wider tolerance (±5%) accommodates less stringent voltage regulation requirements. Highest inventory availability (18,469 pcs) among substitute options. Suitable for general-purpose applications with relaxed tolerance specifications.

PZU10B,115 (Nexperia USA Inc.)

This substitute provides 310 mW power rating with ±5% tolerance and AEC-Q100 automotive qualification. Operating temperature range is -65°C to 150°C. Power dissipation is closest to the CZRF10VB at 310 mW, making this option suitable for applications with limited thermal headroom. Reverse leakage current matches the main part at 100 nA.

TDZ10J,115 (Nexperia USA Inc.)

This substitute delivers 500 mW power rating with ±2% tolerance and AEC-Q101 automotive qualification. Operating temperature range is -55°C to 150°C, matching the lower temperature limit of the CZRF10VB. The TDZxJ series designation indicates specialized design characteristics. Suitable for precision voltage regulation applications requiring tight tolerance control.

All substitute parts maintain RoHS3 compliance, MSL rating 1 (Unlimited), and Active product status. Selection should be based on specific application requirements for power dissipation, tolerance, temperature range, and automotive qualification level.

Frequently Asked Questions (FAQ)

Q: Can BZX84J-B10,115 replace CZRF10VB in all applications?

A: BZX84J-B10,115 is electrically compatible as a substitute. Both components share the same 10 V nominal Zener voltage, SOD-323F package, and RoHS3 compliance. The substitute provides higher power rating (550 mW vs. 200 mW) and tighter tolerance (±2% vs. ±3%), which are design improvements. Mechanical footprint compatibility is confirmed through SOD-323F package equivalence.

Q: What is the difference between BZX84J-B10,115 and BZX84J-C10,115?

A: Both parts are manufactured by Nexperia USA Inc. and share identical power rating (550 mW), impedance (10 Ohms), and temperature range (-65°C to 150°C). The primary difference is tolerance specification: BZX84J-B10,115 is ±2% while BZX84J-C10,115 is ±5%. BZX84J-C10,115 has significantly higher inventory (18,469 pcs vs. 6,100 pcs). Selection depends on voltage regulation precision requirements.

Q: Is PZU10B,115 suitable for high-power applications?

A: PZU10B,115 is rated at 310 mW maximum power dissipation, which exceeds the CZRF10VB (200 mW) but is lower than BZX84J-B10,115 and BZX84J-C10,115 (550 mW each). This substitute is appropriate for applications with moderate power requirements. TDZ10J,115 (500 mW) or BZX84J series (550 mW) are recommended for higher power dissipation scenarios.

Q: Are all substitute parts automotive qualified?

A: BZX84J-B10,115, BZX84J-C10,115, and TDZ10J,115 carry AEC-Q101 automotive qualification. PZU10B,115 carries AEC-Q100 automotive qualification. Both AEC-Q100 and AEC-Q101 are valid automotive standards. The CZRF10VB does not specify automotive qualification. All substitutes meet or exceed the compliance level of the main part.

Q: Can I use TDZ10J,115 in place of CZRF10VB?

A: TDZ10J,115 is a valid substitute with matching 10 V Zener voltage, SOD-323F package, and RoHS3 compliance. The TDZxJ series provides 500 mW power rating and ±2% tolerance. Operating temperature range is -55°C to 150°C, matching the CZRF10VB lower limit. This substitute is suitable for precision voltage regulation applications.

Q: What packaging format differences exist between these parts?

A: CZRF10VB is supplied in Tape & Reel (TR) packaging. BZX84J-B10,115 and BZX84J-C10,115 are supplied in Cut Tape (CT) & Digi-Reel® format. PZU10B,115 and TDZ10J,115 are supplied in Tape & Reel (TR) format. All parts use identical SOD-323F component package. Packaging format differences affect supply chain logistics but do not impact electrical or mechanical compatibility.

Q: Which substitute offers the best inventory availability?

A: BZX84J-C10,115 has the highest inventory level at 18,469 pcs. TDZ10J,115 has the lowest at 2,060 pcs. CZRF10VB has 1,123 pcs in stock. Inventory levels are subject to change. For supply chain continuity, BZX84J-C10,115 provides the most reliable availability among substitute options.

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