DFLZ24-TP-HF Equivalent & Substitute Parts

Part Overview

The DFLZ24-TP-HF is a 24 V, 1 W Zener diode manufactured by Micro Commercial Co, designed for interface applications in surface mount configurations. This component is classified as an active product and is currently in production. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit component flexibility within specified electrical and mechanical parameters.

Substiute Parts

DFLZ24-TP-HF

Micro Commercial CoIn Stock: 1050DFLZ24-TP-HF Datasheet

Current PartRFQ

BZT52HC24WF-7

Diodes IncorporatedIn Stock: 2045BZT52HC24WF-7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DFLZ24-TP-HF is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage nominal value: 24 V
• Package type: SOD-123F (surface mount)
• Mounting configuration: Surface mount

Secondary Compatibility Parameters:

• Power dissipation capability: Minimum 375 mW (substitute may have lower power rating if circuit design permits)
• Voltage tolerance: ±5% to ±5.83%
• Operating temperature range: Minimum -55°C to 150°C
• Impedance characteristics: Maximum 30 Ohms

The BZT52HC24WF-7 manufactured by Diodes Incorporated meets the primary substitution criteria with identical zener voltage and package type. Secondary parameters indicate reduced power dissipation (375 mW versus 1 W) and slightly higher impedance (30 Ohms versus 15 Ohms), which requires circuit-level evaluation for compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (DFLZ24-TP-HF): The DFLZ24-TP-HF is the specified component and should be used when available. This part is active in production with 956 units in stock and meets all original design requirements.

Substitute Part Selection (BZT52HC24WF-7): The BZT52HC24WF-7 is an acceptable substitute when the primary part is unavailable. Both parts share identical zener voltage (24 V) and package type (SOD-123F), which are the primary substitution criteria for Zener diodes in this category.

Compliance Considerations: The BZT52HC24WF-7 carries AEC-Q101 automotive qualification and ROHS3 compliance certification, providing additional qualification documentation. The DFLZ24-TP-HF does not specify these certifications in the provided data.

Electrical Parameter Differences: The substitute part exhibits lower power dissipation (375 mW versus 1 W) and higher impedance (30 Ohms versus 15 Ohms). These differences require evaluation within the specific circuit application to confirm functional equivalence. The substitute also demonstrates lower reverse leakage current (50 nA versus 1 µA), which may provide improved performance in certain applications.

Frequently Asked Questions (FAQ)

Q: Can the BZT52HC24WF-7 be used as a direct replacement for the DFLZ24-TP-HF?

A: The BZT52HC24WF-7 is electrically and mechanically compatible for substitution based on matching zener voltage (24 V) and package type (SOD-123F). However, the reduced power rating (375 mW versus 1 W) and increased impedance (30 Ohms versus 15 Ohms) require circuit-level verification to confirm the substitute meets application requirements.

Q: What are the key parameters that determine if a Zener diode can substitute for the DFLZ24-TP-HF?

A: The primary substitution criteria are zener voltage (24 V nominal) and package type (SOD-123F surface mount). Secondary parameters include power dissipation capability, voltage tolerance, operating temperature range, and impedance characteristics. All parameters must remain within acceptable limits for the intended application.

Q: Are there packaging differences between these parts?

A: Both the DFLZ24-TP-HF and BZT52HC24WF-7 use the SOD-123F package for surface mount applications. The main packaging difference is that the substitute is supplied in Tape & Reel (TR) format, while the primary part does not specify packaging format in the provided data.

Q: What is the temperature operating range for each part?

A: The DFLZ24-TP-HF operates from -55°C to 150°C (TJ). The BZT52HC24WF-7 operates from -65°C to 150°C, providing a wider lower temperature range by 10°C.

Q: Does the substitute part have any additional certifications?

A: The BZT52HC24WF-7 carries AEC-Q101 automotive qualification and ROHS3 compliance certification. The primary part does not specify these certifications in the provided documentation.

Q: How do the impedance values affect substitution?

A: The DFLZ24-TP-HF has a maximum impedance of 15 Ohms, while the BZT52HC24WF-7 has a maximum impedance of 30 Ohms. Higher impedance affects voltage regulation characteristics and transient response. Circuit design must accommodate this difference for functional equivalence.

Q: What is the difference in power dissipation between these parts?

A: The DFLZ24-TP-HF is rated for 1 W maximum power dissipation, while the BZT52HC24WF-7 is rated for 375 mW. Applications requiring sustained power dissipation above 375 mW must use the primary part or verify that the substitute operates within its thermal limits.