SMDA05-6R2 Equivalent & Substitute Parts

Part Overview

The SMDA05-6R2 is a unidirectional transient voltage suppressor (TVS) diode manufactured by onsemi, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 5V reverse standoff voltage, 11V maximum clamping voltage, and 17A peak pulse current capability in an 8-SOIC package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Substiute Parts

SMDA05-6R2

onsemiIn Stock: 1189SMDA05-6R2 Datasheet

Current PartRFQ

SMDA05-6/TR13

Microchip TechnologyIn Stock: 924SMDA05-6/TR13 Datasheet

DirectRFQ

SMDA05-6/TR7

Microchip TechnologyIn Stock: 1557SMDA05-6/TR7 Datasheet

DirectRFQ

SMDA05-6E3/TR7

Microchip TechnologyIn Stock: 10661SMDA05-6E3/TR7 Datasheet

DirectRFQ

SMDA05-6.TBT

Semtech CorporationIn Stock: 1499SMDA05-6.TBT Datasheet

SimilarRFQ

SMDA05-6E3/TR13

Microchip TechnologyIn Stock: 746SMDA05-6E3/TR13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMDA05-6R2 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Reverse standoff voltage: 5V
• Breakdown voltage minimum: 6V
• Clamping voltage maximum: 11V
• Unidirectional channel configuration: 6 channels
• Package type: 8-SOIC form factor
• Mounting type: Surface mount

Acceptable Variation Parameters:

• Peak pulse current: The SMDA05-6R2 specifies 17A (8/20µs). Substitute parts rated at 5A (8/20µs) are acceptable for applications where peak pulse current requirements do not exceed the substitute rating.
• Operating temperature range: Substitutes with -55°C ~ 150°C or -55°C ~ 125°C are functionally equivalent for general-purpose applications.
• Capacitance: Variations between 400pF and 550pF @ 1MHz do not affect core TVS functionality.

Substitute Categories:

Direct Substitutes (Microchip Technology TVSarray™ Series):

• SMDA05-6/TR13
• SMDA05-6/TR7
• SMDA05-6E3/TR13
• SMDA05-6E3/TR7

These parts maintain identical electrical specifications (5V standoff, 6V breakdown, 11V clamping, 6 channels) and 8-SOIC packaging. All are active products with current manufacturing status.

Similar Substitute (Semtech Corporation SMDA Series):

• SMDA05-6.TBT

This part matches all critical electrical parameters and packaging but is manufactured by Semtech Corporation rather than Microchip Technology.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Production Continuity:

The Microchip Technology TVSarray™ series parts (SMDA05-6/TR13, SMDA05-6/TR7, SMDA05-6E3/TR7, SMDA05-6E3/TR13) are the primary substitutes for the obsolete SMDA05-6R2. All four variants maintain identical voltage specifications and 8-SOIC packaging. Selection between these variants depends on packaging format (Tape & Reel designation) and RoHS compliance requirements.

RoHS3 Compliant Options:

• SMDA05-6E3/TR7 (10,635 pcs inventory)
• SMDA05-6E3/TR13 (723 pcs inventory)

These parts satisfy modern environmental compliance standards and are recommended for applications subject to RoHS3 requirements.

Non-Compliant Options (Legacy Support):

• SMDA05-6/TR13 (841 pcs inventory)
• SMDA05-6/TR7 (1,503 pcs inventory)

These parts maintain RoHS non-compliant status matching the original SMDA05-6R2 and are suitable for legacy system maintenance.

Peak Pulse Current Consideration:

The Microchip substitutes are rated at 5A (8/20µs) compared to the original 17A (8/20µs) specification. Applications requiring the full 17A peak pulse current capability should use the Semtech SMDA05-6.TBT, which maintains the 17A rating while meeting ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can I use SMDA05-6/TR7 or SMDA05-6/TR13 as direct replacements for SMDA05-6R2?

A: Yes. Both parts maintain identical voltage specifications (5V standoff, 6V breakdown, 11V clamping) and 8-SOIC packaging. The primary difference is peak pulse current rating: 5A versus the original 17A. Substitution is valid for applications where peak pulse current does not exceed 5A (8/20µs).

Q: What is the difference between SMDA05-6E3/TR7 and SMDA05-6/TR7?

A: Both parts are manufactured by Microchip Technology and share identical electrical specifications and packaging. The E3 designation indicates ROHS3 compliance, while the non-E3 variant is RoHS non-compliant. Electrical performance is equivalent.

Q: Why do some substitutes have lower peak pulse current ratings?

A: The Microchip TVSarray™ series (5A rating) and Semtech SMDA05-6.TBT (17A rating) represent different design implementations within the same voltage class. Selection depends on application peak pulse current requirements. For applications requiring 17A capability, use SMDA05-6.TBT.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package, ensuring mechanical and PCB layout compatibility with the original SMDA05-6R2.

Q: Which substitute should I choose for new designs?

A: For new designs, SMDA05-6E3/TR7 is recommended. It provides ROHS3 compliance, active product status, high inventory availability (10,635 pcs), and maintains all critical electrical specifications. If 17A peak pulse current is required, use SMDA05-6.TBT.

Q: What is the difference between Tape & Reel (TR) packaging variants?

A: TR13 and TR7 designations refer to different tape reel configurations used for automated assembly. Both are surface-mount compatible. Selection depends on manufacturing equipment compatibility and supply chain preferences.