DPD13AWF-7 Equivalent & Substitute Parts

Part Overview

The DPD13AWF-7 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. With a 13V reverse standoff voltage and 21.5V maximum clamping voltage, this component provides transient suppression for sensitive electronic circuits. The DPD13AWF-7 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

DPD13AWF-7

Diodes IncorporatedIn Stock: 2988DPD13AWF-7 Datasheet

Current PartRFQ

SMF13A-TP

Micro Commercial CoIn Stock: 13960SMF13A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DPD13AWF-7 is determined by the following critical electrical and mechanical parameters:

• Voltage Rating Match: Reverse standoff voltage of 13V, breakdown voltage minimum of 14.4V, and clamping voltage maximum of 21.5V must remain constant
• Current Handling: Peak pulse current rating must support the application's transient suppression requirements
• Package Compatibility: SOD-123F surface-mount package ensures mechanical and thermal compatibility with existing PCB layouts
• Unidirectional Configuration: Single-channel Zener topology for single-line protection
• Temperature Range: Operating temperature specification must meet or exceed the application environment
• Compliance Standards: RoHS3 compliance and EAR99 classification maintained across substitutes

The SMF13A-TP from Micro Commercial Co meets all critical substitution criteria while offering active product status and improved long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The SMF13A-TP is the qualified substitute for the obsolete DPD13AWF-7. Selection is based on the following factors:

• Product Status: SMF13A-TP maintains active production status, ensuring long-term availability and supply chain continuity
• Electrical Equivalence: Identical voltage ratings (13V standoff, 14.4V breakdown, 21.5V clamping) guarantee functional compatibility in existing circuit designs
• Package Compatibility: Both components use SOD-123F surface-mount packaging, enabling direct PCB layout compatibility without redesign
• Compliance Alignment: SMF13A-TP maintains ROHS3 compliance and EAR99 classification, meeting regulatory requirements equivalent to the original part
• Temperature Performance: SMF13A-TP extends the upper operating temperature limit to 175°C, providing enhanced thermal margin in demanding applications
• Current Rating Consideration: SMF13A-TP peak pulse current is rated at 9.3A compared to the original 10.5A. Applications requiring the full 10.5A peak pulse capability must evaluate whether the 9.3A rating is sufficient for the specific transient suppression scenario

Frequently Asked Questions (FAQ)

Q: Can SMF13A-TP be used as a direct replacement for DPD13AWF-7 in existing designs?

A: Yes. Both components share identical voltage ratings (13V standoff, 14.4V breakdown, 21.5V clamping), unidirectional Zener topology, and SOD-123F package. Direct PCB substitution is mechanically and electrically compatible. The 9.3A peak pulse rating of SMF13A-TP versus 10.5A of the original part must be evaluated against application transient current requirements.

Q: What is the significance of the SOD-123F package specification?

A: SOD-123F is a standardized surface-mount package for small-signal diodes and TVS devices. Both the DPD13AWF-7 and SMF13A-TP use this package, ensuring identical footprint, lead spacing, and thermal characteristics on the PCB. No layout modifications are required for substitution.

Q: Why is the DPD13AWF-7 classified as obsolete?

A: Obsolete status indicates that Diodes Incorporated has discontinued production and support for this part number. The SMF13A-TP from Micro Commercial Co provides equivalent electrical performance with active manufacturing status, ensuring continued availability for new and existing applications.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant and classified as EAR99 for export control purposes. SMF13A-TP is REACH Unaffected, while DPD13AWF-7 is REACH Affected. For applications subject to REACH regulations, SMF13A-TP may offer simplified compliance documentation.

Q: How do the operating temperature ranges compare?

A: DPD13AWF-7 operates from -65°C to 150°C (junction temperature). SMF13A-TP operates from -65°C to 175°C (ambient temperature). The extended upper temperature limit of SMF13A-TP provides additional thermal margin in high-temperature environments.

Q: What packaging format is available for SMF13A-TP?

A: SMF13A-TP is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. This packaging format is standard for high-volume production and provides better handling and storage characteristics compared to alternative formats.