CMSZDA8V2 TR PBFREE Equivalent & Substitute Parts

Part Overview

The CMSZDA8V2 TR PBFREE is a Zener Diode Array manufactured by Central Semiconductor Corp, configured as 1 Pair Common Anode with a nominal Zener voltage of 8.2 V and maximum power dissipation of 275 mW. The device is packaged in SOT-323 (SC-70) surface mount configuration and is RoHS3 compliant with MSL Level 1 rating.

This part is currently in Active product status with 3,516 pieces available in inventory. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the Zener diode category, enabling component selection flexibility for design implementation and supply chain optimization.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	8.2	V
Tolerance	±5%	%
Power - Max	275	mW
Impedance (Max)	15	Ohms
Current - Reverse Leakage @ Vr	700	nA @ 5 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Configuration	1 Pair Common Anode	—
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—
Operating Temperature	-65°C ~ 150°C	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the CMSZDA8V2 TR PBFREE is determined by the following critical parameters:

Electrical Compatibility Criteria:

Nominal Zener voltage of 8.2 V
Voltage tolerance of ±5%
Impedance (Max) of 15 Ohms
Reverse leakage current of 700 nA @ 5 V
Forward voltage of 900 mV @ 10 mA

Mechanical & Configuration Compatibility:

Configuration: 1 Pair Common Anode
Package: SOT-323 (SC-70)
Mounting: Surface Mount

Compliance & Quality:

RoHS3 compliance
Active product status

The substitute part BZB784-C8V2,115 matches all electrical parameters and mechanical specifications. The primary difference is maximum power dissipation (180 mW versus 275 mW), which represents a reduced thermal capability. This difference must be evaluated against application power requirements.

Parameter Comparison

Parameter	CMSZDA8V2 TR PBFREE (Central Semiconductor)	BZB784-C8V2,115 (NXP USA Inc.)
Voltage - Zener (Nom)	8.2 V	8.2 V
Tolerance	±5%	±5%
Power - Max	275 mW	180 mW
Impedance (Max)	15 Ohms	15 Ohms
Current - Reverse Leakage @ Vr	700 nA @ 5 V	700 nA @ 5 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA
Configuration	1 Pair Common Anode	1 Pair Common Anode
Package / Case	SC-70, SOT-323	SC-70, SOT-323
Mounting Type	Surface Mount	Surface Mount
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	Not specified in data

Engineering Selection Recommendations

Primary Part (CMSZDA8V2 TR PBFREE): Select this part when maximum power dissipation of 275 mW is required for the application. The part is Active status with established supply (3,516 pieces in stock), RoHS3 compliant, and MSL Level 1 rated for unlimited moisture exposure.

Substitute Part (BZB784-C8V2,115): The BZB784-C8V2,115 is suitable for applications where power dissipation does not exceed 180 mW. This part is manufactured by NXP USA Inc. (Nexperia brand) and maintains identical electrical characteristics for Zener voltage, tolerance, impedance, leakage current, and forward voltage. The substitute offers significantly higher inventory availability (130,251 pieces). Both parts are Active status and packaged identically in SOT-323.

Selection Basis:

Electrical parameter matching across all specified criteria
Identical mechanical configuration and package
Both parts maintain Active product status
Compliance certifications support interchangeability within thermal design constraints

Frequently Asked Questions (FAQ)

Q: Can BZB784-C8V2,115 directly replace CMSZDA8V2 TR PBFREE in all applications?

A: Direct replacement is valid when application power dissipation does not exceed 180 mW. The substitute part has lower maximum power rating (180 mW vs. 275 mW). All other electrical parameters—Zener voltage, tolerance, impedance, leakage current, and forward voltage—are identical. Mechanical compatibility is confirmed through identical SOT-323 packaging and 1 Pair Common Anode configuration.

Q: What is the significance of the power rating difference?

A: The CMSZDA8V2 TR PBFREE supports 275 mW maximum dissipation, while BZB784-C8V2,115 supports 180 mW. This difference affects thermal performance under sustained current conditions. Applications requiring power dissipation above 180 mW must use the primary part or verify thermal design margins with the substitute.

Q: Are both parts RoHS compliant?

A: The CMSZDA8V2 TR PBFREE is confirmed RoHS3 compliant. RoHS status for BZB784-C8V2,115 is not specified in the provided data. Compliance verification should be obtained from the manufacturer for applications with RoHS requirements.

Q: What is the MSL rating significance?

A: The CMSZDA8V2 TR PBFREE carries MSL Level 1 (Unlimited), indicating no moisture sensitivity limitations for storage or handling. This supports extended shelf life and flexible supply chain management without special moisture control requirements.

Q: Are the packages truly identical?

A: Both parts use SC-70 / SOT-323 surface mount packaging. Mechanical footprint, pin configuration, and PCB layout compatibility are identical, enabling direct board-level substitution without layout modifications.

Q: What inventory considerations apply?

A: CMSZDA8V2 TR PBFREE has 3,516 pieces in stock. BZB784-C8V2,115 has 130,251 pieces available, providing significantly higher supply availability for high-volume production or extended lead-time mitigation.

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