DDZX33-13 Equivalent & Substitute Parts

Part Overview

The DDZX33-13 is a Zener diode manufactured by Diodes Incorporated, rated for 33 V nominal Zener voltage with 300 mW maximum power dissipation in a surface mount SOT-23-3 package. This component is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same product family, enabling seamless integration in circuit designs requiring 33 V Zener regulation.

Substiute Parts

DDZX33-13

Diodes IncorporatedIn Stock: 45182DDZX33-13 Datasheet

Current PartRFQ

DDZX33-7

Diodes IncorporatedIn Stock: 3148DDZX33-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DDZX33-13 are identified based on strict electrical and mechanical parameter matching within the DDZX33 product family. The substitution criteria are:

• Zener Voltage (Nominal): 33 V
• Tolerance: ±3%
• Maximum Power Dissipation: 300 mW
• Impedance (Maximum): 75 Ohms
• Reverse Leakage Current: 50 nA @ 27 V
• Forward Voltage: 900 mV @ 10 mA
• Operating Temperature Range: -65°C to 150°C
• Package Configuration: SOT-23-3 (TO-236-3, SC-59)
• Mounting Technology: Surface Mount
• Regulatory Compliance: RoHS3 Compliant, REACH Unaffected

Parts meeting all these parameters are classified as parametric equivalents and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The DDZX33-7 is a direct parametric equivalent to the DDZX33-13. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications, thermal characteristics, and regulatory compliance status. Selection between these parts may be based on inventory availability and lead time considerations. The DDZX33-13 maintains higher stock levels (45,100 pcs) compared to the DDZX33-7 (3,100 pcs). Both parts carry active product status and full RoHS3 compliance with REACH unaffected designation, confirming suitability for current and future production applications.

Frequently Asked Questions (FAQ)

Q: Can the DDZX33-7 be used as a direct replacement for the DDZX33-13?

A: Yes. The DDZX33-7 is a parametric equivalent with identical Zener voltage (33 V), power rating (300 mW), impedance (75 Ohms), temperature range (-65°C to 150°C), and SOT-23-3 package configuration. No circuit modifications are required.

Q: Are there any differences in regulatory compliance between these parts?

A: No. Both the DDZX33-13 and DDZX33-7 carry identical RoHS3 compliance status, REACH unaffected designation, and moisture sensitivity level (MSL 1 - Unlimited).

Q: What is the significance of the different part number suffixes (-13 vs -7)?

A: The suffix designates the packaging reel configuration or supplier-specific tape format. The electrical and mechanical specifications remain identical across all DDZX33 variants with matching core parameters.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Both parts use the identical SOT-23-3 surface mount package with the same pin configuration, footprint, and soldering requirements.

Q: What should be considered when selecting between DDZX33-13 and DDZX33-7?

A: Selection should be based on inventory availability, lead time, and supply chain requirements. The DDZX33-13 has higher stock availability. Electrical performance and compliance characteristics are identical.