DFLZ8V2-TP Zener Diode 8.2V 1W Equivalent & Substitute Parts

Part Overview

The DFLZ8V2-TP is an active-status Zener diode manufactured by Micro Commercial Co, rated at 8.2 V nominal with 1 W maximum power dissipation in a surface mount SOD-123FL package. This component is designed for voltage regulation and protection applications requiring precise Zener voltage characteristics at elevated power levels. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility exist, enabling component selection flexibility across supply chains while maintaining circuit performance specifications.

Substiute Parts

DFLZ8V2-TP

Micro Commercial CoIn Stock: 2860DFLZ8V2-TP Datasheet

Current PartRFQ

BZT52HC8V2WF-7

Diodes IncorporatedIn Stock: 4078BZT52HC8V2WF-7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DFLZ8V2-TP is determined by the following criteria:

Primary Electrical Parameters:

• Zener voltage nominal value: 8.2 V
• Zener voltage tolerance: ±6% or tighter
• Package compatibility: SOD-123F or SOD-123FL

Secondary Electrical Parameters:

• Maximum power dissipation: equal to or greater than 1 W
• Impedance (Zzt): equal to or less than 2 Ohms
• Operating temperature range: must encompass -55°C to 150°C minimum

Compliance & Environmental:

• RoHS3 compliance required
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Surface mount technology

The substitute part BZT52HC8V2WF-7 meets the primary electrical parameters (8.2 V nominal, ±6.1% tolerance) and package requirements (SOD-123F). However, the maximum power rating of 375 mW is lower than the 1 W specification of the main part, and impedance is higher at 10 Ohms versus 2 Ohms maximum. These differences establish a one-directional substitution relationship: the DFLZ8V2-TP can replace the BZT52HC8V2WF-7 in applications, but the reverse substitution is limited to circuits where power dissipation does not exceed 375 mW.

Parameter Comparison

Engineering Selection Recommendations

DFLZ8V2-TP Selection Criteria: Select the DFLZ8V2-TP when circuit design requires 1 W maximum power dissipation capability and impedance specification of 2 Ohms or lower. This part is suitable for general-purpose voltage regulation and protection applications across the full -55°C to 150°C operating range. Active product status and ROHS3 compliance ensure long-term availability and regulatory conformance.

BZT52HC8V2WF-7 Selection Criteria: The BZT52HC8V2WF-7 is applicable in applications where power dissipation does not exceed 375 mW and where automotive-grade qualification (AEC-Q101) is required or preferred. The extended lower temperature rating to -65°C accommodates specialized low-temperature environments. Higher impedance (10 Ohms) may affect voltage regulation performance in circuits sensitive to dynamic impedance characteristics. Active product status and ROHS3 compliance are maintained.

Substitution Direction: The DFLZ8V2-TP can substitute for the BZT52HC8V2WF-7 in all applications where power dissipation remains within 375 mW limits. Reverse substitution of BZT52HC8V2WF-7 for DFLZ8V2-TP is restricted to circuits designed for maximum 375 mW dissipation and where higher impedance is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the BZT52HC8V2WF-7 replace the DFLZ8V2-TP in all applications?

A: No. The BZT52HC8V2WF-7 has a maximum power rating of 375 mW compared to the DFLZ8V2-TP's 1 W rating. Substitution is limited to circuits where actual power dissipation does not exceed 375 mW. Additionally, the BZT52HC8V2WF-7 has higher impedance (10 Ohms versus 2 Ohms), which may affect voltage regulation performance in sensitive applications.

Q: Are the packages physically compatible?

A: Yes. Both the DFLZ8V2-TP and BZT52HC8V2WF-7 use the SOD-123F package with identical footprints. The DFLZ8V2-TP is supplied in SOD-123FL variant, which is mechanically and electrically compatible with SOD-123F. Both are surface mount components suitable for automated assembly.

Q: What is the difference in Zener voltage tolerance between these parts?

A: The DFLZ8V2-TP specifies ±6% tolerance, while the BZT52HC8V2WF-7 specifies ±6.1% tolerance. Both tolerances are equivalent for practical circuit design purposes, with the difference of 0.1% falling within normal manufacturing variation.

Q: Does the BZT52HC8V2WF-7 automotive qualification affect substitution decisions?

A: Automotive qualification (AEC-Q101) is a manufacturing and testing certification specific to the BZT52HC8V2WF-7. It does not prevent substitution but indicates the part meets automotive industry reliability standards. Selection should be based on application requirements rather than qualification status alone.

Q: What is the impact of impedance differences on circuit performance?

A: Impedance (Zzt) affects the dynamic voltage regulation characteristics of the Zener diode. The DFLZ8V2-TP's lower impedance (2 Ohms maximum) provides better voltage stability under varying load conditions. The BZT52HC8V2WF-7's higher impedance (10 Ohms maximum) may result in greater voltage variation. Applications requiring tight voltage regulation should prioritize the lower impedance specification.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the DFLZ8V2-TP and BZT52HC8V2WF-7 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Can the DFLZ8V2-TP be used in the extended temperature range of the BZT52HC8V2WF-7?

A: The DFLZ8V2-TP is rated for -55°C to 150°C operation. The BZT52HC8V2WF-7 extends the lower limit to -65°C. If circuit operation below -55°C is required, the DFLZ8V2-TP does not meet the specification. The BZT52HC8V2WF-7 must be selected for such applications.