BZT52C47-13 Equivalent & Substitute Parts

Part Overview

The BZT52C47-13 is a Zener diode rated at 47 V nominal voltage with 410 mW maximum power dissipation in a surface mount SOD-123 package. Manufactured by Diodes Incorporated, this component is designed for voltage regulation and protection applications requiring precise 47 V reference levels.

The BZT52C47-13 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available to maintain design continuity and ensure project completion. Substitute selection is based on matching electrical specifications including nominal voltage, power rating, impedance, and thermal operating range, combined with package compatibility and current product availability.

Substiute Parts

BZT52C47-13

Diodes IncorporatedIn Stock: 750BZT52C47-13 Datasheet

Current PartRFQ

BZT52C47-7-F

Diodes IncorporatedIn Stock: 4452BZT52C47-7-F Datasheet

Parametric EquivalentRFQ

MMSZ5261BT1G

onsemiIn Stock: 4199MMSZ5261BT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZT52C47-13 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Nominal Zener voltage of 47 V
• Maximum power dissipation of 410 mW or greater
• Impedance (Zzt) at or below 100 Ohms
• Reverse leakage current at or below 100 nA @ 35 V or equivalent test voltage
• Operating temperature range encompassing -65°C to 150°C

Mechanical Compatibility Requirements:

• SOD-123 surface mount package
• Surface mount mounting type

Compliance Considerations:

• RoHS3 compliance status
• REACH compliance status

Substitute parts meeting all electrical and mechanical parameters are classified as direct equivalents. Parts with enhanced specifications (higher power rating, improved tolerance) that maintain compatibility with the original design parameters are classified as parametric equivalents or manufacturer-recommended alternatives.

Parameter Comparison

Engineering Selection Recommendations

BZT52C47-7-F (Diodes Incorporated)

This part is a parametric equivalent to the BZT52C47-13, offering identical electrical specifications with the same 47 V nominal voltage, ±6% tolerance, 410 mW power rating, and 100 Ohm impedance. The primary difference is packaging format (Tape & Reel versus bulk), and the BZT52C47-7-F carries ROHS3 compliance status. This part is currently active in production with 4400 units in stock, making it the direct replacement for discontinued BZT52C47-13 applications.

MMSZ5261BT1G (onsemi)

This part is a manufacturer-recommended alternative offering enhanced specifications within compatible parameters. The MMSZ5261BT1G maintains the 47 V nominal voltage and SOD-123 package while providing increased power dissipation (500 mW versus 410 mW) and improved tolerance (±5% versus ±6%). The impedance specification of 105 Ohms is marginally higher than the original 100 Ohms but remains within acceptable substitution limits. The operating temperature range is -55°C to 150°C, which covers the upper portion of the original -65°C to 150°C range. This part is ROHS3 compliant and currently active with 4100 units in stock. Selection of this part is appropriate for applications where enhanced power handling or improved tolerance provides design margin.

Both substitute parts are surface mount SOD-123 devices suitable for direct PCB replacement of the BZT52C47-13 in voltage regulation and protection circuits.

Frequently Asked Questions (FAQ)

Q: Can the BZT52C47-7-F directly replace the BZT52C47-13 in my circuit?

A: Yes. The BZT52C47-7-F is a parametric equivalent with identical electrical specifications: 47 V nominal voltage, ±6% tolerance, 410 mW power rating, 100 Ohm impedance, and -65°C to 150°C operating range. Both use the SOD-123 surface mount package. The primary difference is packaging format (Tape & Reel) and RoHS3 compliance status of the substitute.

Q: What are the key differences between the BZT52C47-13 and MMSZ5261BT1G?

A: Both parts share the same 47 V nominal voltage and SOD-123 package. The MMSZ5261BT1G offers higher power dissipation (500 mW versus 410 mW), improved voltage tolerance (±5% versus ±6%), and slightly higher impedance (105 Ohms versus 100 Ohms). The operating temperature range of the MMSZ5261BT1G is -55°C to 150°C, which does not extend to the lower -65°C limit of the original part. Both are ROHS3 compliant.

Q: Is the MMSZ5261BT1G suitable for applications requiring the full -65°C to 150°C temperature range?

A: No. The MMSZ5261BT1G operates from -55°C to 150°C. If your application requires operation at temperatures below -55°C, the BZT52C47-7-F is the appropriate substitute, as it maintains the original -65°C to 150°C range.

Q: Can I use the MMSZ5261BT1G in place of the BZT52C47-13 if my circuit operates within -55°C to 150°C?

A: Yes, provided your circuit operates within the -55°C to 150°C range. The MMSZ5261BT1G meets all other electrical parameters and offers enhanced power handling (500 mW) and improved tolerance (±5%), making it suitable for applications within this temperature window.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the BZT52C47-7-F and MMSZ5261BT1G are ROHS3 compliant. The original BZT52C47-13 is RoHS non-compliant.

Q: What is the difference between the packaging formats listed for these parts?

A: The BZT52C47-13 is listed with no specified packaging format. The BZT52C47-7-F is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Both parts use the same SOD-123 component package and are compatible with automated pick-and-place equipment.

Q: Can I use either substitute part interchangeably in my design?

A: The BZT52C47-7-F is the direct equivalent and can be used as a one-to-one replacement. The MMSZ5261BT1G can be used if your application operates within -55°C to 150°C and does not require the extended lower temperature range. Both are SOD-123 surface mount devices suitable for direct PCB replacement.