SMDB24/TR13 Equivalent & Substitute Parts

Part Overview

The SMDB24/TR13 is a Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, part of the TVSarray™ series. This surface-mount component provides transient overvoltage protection in general-purpose applications with a 24V reverse standoff voltage and 43V maximum clamping voltage. The device is actively produced and available in tape and reel packaging format.

Substitute parts are identified to address packaging format availability, inventory requirements, and compliance variations while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

SMDB24/TR13

Microchip TechnologyIn Stock: 1169SMDB24/TR13 Datasheet

Current PartRFQ

SMDB24/TR7

Microchip TechnologyIn Stock: 1354SMDB24/TR7 Datasheet

DirectRFQ

SMDA24.TBT

Semtech CorporationIn Stock: 2168SMDA24.TBT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMDB24/TR13 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Breakdown (Min): 26.7V minimum
• Current - Peak Pulse (8/20µs): 5A
• Power - Peak Pulse: 300W
• Unidirectional Channels: 4

Mechanical Compatibility Requirements:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 8-SO

Packaging Format Variations: The SMDB24/TR13 is supplied in Tape & Reel (TR) format. Direct substitutes may be available in alternative packaging formats such as Cut Tape (CT) or alternative reel specifications, provided all electrical and mechanical parameters remain within specification.

Voltage Clamping Tolerance: The Voltage - Clamping (Max) @ Ipp parameter may vary between substitute parts. Substitutes with higher clamping voltages (such as 55V versus 43V) remain functionally compatible for general-purpose transient suppression applications where the circuit design accommodates the higher clamping threshold.

Parameter Comparison

Engineering Selection Recommendations

SMDB24/TR7 (Direct Substitute - Microchip Technology)

The SMDB24/TR7 is a direct electrical equivalent to the SMDB24/TR13, differing only in packaging format. Both components are manufactured by Microchip Technology within the TVSarray™ series and share identical electrical specifications. The SMDB24/TR7 is supplied in Cut Tape (CT) format rather than Tape & Reel (TR). Selection of this substitute is appropriate when Cut Tape packaging meets procurement and assembly requirements. Both parts maintain identical RoHS non-compliance status and MSL rating.

SMDA24.TBT (Similar Substitute - Semtech Corporation)

The SMDA24.TBT is manufactured by Semtech Corporation and maintains electrical compatibility with the SMDB24/TR13 across critical parameters: 24V reverse standoff voltage, 26.7V minimum breakdown voltage, 5A peak pulse current, and 300W peak pulse power. The SMDA24.TBT exhibits a higher voltage clamping specification (55V maximum versus 43V) and lower capacitance (60pF versus 90pF at 1MHz). The operating temperature range is reduced to -55°C to 125°C compared to -55°C to 150°C for the main part. The SMDA24.TBT achieves ROHS3 compliance, whereas the SMDB24/TR13 is RoHS non-compliant. Selection of this substitute is appropriate for applications requiring RoHS3 compliance or when the higher clamping voltage and lower capacitance characteristics are acceptable for the circuit design.

Frequently Asked Questions (FAQ)

Q: Can SMDB24/TR7 be used as a direct replacement for SMDB24/TR13?

A: Yes. The SMDB24/TR7 is electrically identical to the SMDB24/TR13. The only difference is packaging format: SMDB24/TR7 is supplied in Cut Tape (CT) format while SMDB24/TR13 is supplied in Tape & Reel (TR) format. Both components are manufactured by Microchip Technology and share all electrical specifications, operating temperature range, and compliance certifications.

Q: What are the key differences between SMDA24.TBT and SMDB24/TR13?

A: The SMDA24.TBT differs from SMDB24/TR13 in three areas: (1) Voltage - Clamping (Max) @ Ipp is 55V for SMDA24.TBT versus 43V for SMDB24/TR13; (2) Capacitance @ 1MHz is 60pF for SMDA24.TBT versus 90pF for SMDB24/TR13; (3) Operating temperature maximum is 125°C for SMDA24.TBT versus 150°C for SMDB24/TR13. Additionally, SMDA24.TBT is ROHS3 compliant while SMDB24/TR13 is RoHS non-compliant. All other electrical parameters including reverse standoff voltage, breakdown voltage, peak pulse current, and peak pulse power are identical.

Q: Is the higher clamping voltage of SMDA24.TBT a limitation?

A: The higher clamping voltage (55V) of SMDA24.TBT does not constitute a limitation for general-purpose transient suppression applications. The circuit design must accommodate this higher clamping threshold. For applications where the 43V clamping specification of SMDB24/TR13 is a critical design requirement, SMDA24.TBT is not suitable.

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

A: Yes. All listed substitute parts utilize the 8-SOIC (0.154", 3.90mm Width) surface-mount package. Packaging format (Tape & Reel versus Cut Tape) differs between SMDB24/TR13 and SMDB24/TR7, but the physical component package remains identical, ensuring PCB footprint compatibility.

Q: What is the significance of the MSL rating?

A: All listed parts carry Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements. This specification is identical across SMDB24/TR13, SMDB24/TR7, and SMDA24.TBT.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance status does not affect electrical performance. SMDA24.TBT achieves ROHS3 compliance while SMDB24/TR13 and SMDB24/TR7 are RoHS non-compliant. Selection between compliant and non-compliant parts is determined by regulatory and procurement requirements specific to the end application and market.