SMAJ9.0CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMAJ9.0CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a 9V reverse standoff voltage and provides clamping at 16.9V maximum, with peak pulse current handling of 29.5A. The component is housed in a DO-214AC (SMA) package and is supplied in tape and reel format for automated assembly.

The product maintains Active status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and operational specifications that permit direct functional replacement in circuit applications.

Substiute Parts

SMAJ9.0CE3/TR13

Microchip TechnologyIn Stock: 830SMAJ9.0CE3/TR13 Datasheet

Current PartRFQ

SMAJ9.0CA

MDDIn Stock: 54184SMAJ9.0CA Datasheet

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SMAJ9.0CA

MDDIn Stock: 54184SMAJ9.0CA Datasheet

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SMAJ9.0CA-13-F

Diodes IncorporatedIn Stock: 1868SMAJ9.0CA-13-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by electrical parameter compatibility within defined tolerance bands. The SMAJ9.0CE3/TR13 establishes the baseline specification for 9V reverse standoff voltage protection with 16.9V maximum clamping voltage and 29.5A peak pulse current capacity.

Substitute parts must satisfy the following criteria:

• Voltage - Reverse Standoff (Typ): 9V nominal
• Voltage - Breakdown (Min): 10V minimum threshold
• Package / Case: DO-214AC (SMA) surface-mount configuration
• Mounting Type: Surface Mount
• Type: Zener diode
• Bidirectional Channels: 1 channel
• Product Status: Active
• RoHS Compliance: ROHS3 Compliant

Identified substitute parts SMAJ9.0CA (MDD) and SMAJ9.0CA-13-F (Diodes Incorporated) meet these core electrical and mechanical requirements. Both parts operate at the same 9V reverse standoff voltage and 10V breakdown minimum, with clamping voltages of 15.4V and peak pulse currents of 26A. These specifications remain within functional equivalence for general-purpose transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

SMAJ9.0CA (MDD) is suitable for applications where the lower clamping voltage of 15.4V and reduced peak pulse current of 26A satisfy circuit protection requirements. This part maintains full RoHS3 compliance and unlimited moisture sensitivity rating. The operating temperature range of -50 to 150°C (TJ) covers standard industrial and commercial applications, though it does not extend to the -65°C minimum of the primary part.

SMAJ9.0CA-13-F (Diodes Incorporated) provides equivalent electrical performance to the MDD variant with an extended low-temperature operating range of -55 to 150°C (TJ), offering improved coverage for applications requiring operation below -50°C. This part also maintains full RoHS3 compliance and unlimited moisture sensitivity rating.

Both substitute parts are Active products with established supply availability. Selection between substitutes depends on specific application temperature requirements and acceptable performance tolerances for clamping voltage and peak pulse current handling.

Frequently Asked Questions (FAQ)

Q: Can SMAJ9.0CA or SMAJ9.0CA-13-F be used as direct replacements for SMAJ9.0CE3/TR13?

A: Both parts are functionally equivalent for general-purpose transient voltage suppression. They share identical reverse standoff voltage (9V), breakdown voltage (10V minimum), and package configuration (DO-214AC SMA). The substitute parts operate at lower clamping voltages (15.4V versus 16.9V) and reduced peak pulse current (26A versus 29.5A). Direct substitution is valid when circuit design tolerates these reduced performance specifications.

Q: What is the primary difference between SMAJ9.0CA (MDD) and SMAJ9.0CA-13-F (Diodes Incorporated)?

A: The primary difference is the operating temperature range. SMAJ9.0CA operates from -50 to 150°C (TJ), while SMAJ9.0CA-13-F extends to -55°C minimum. Both parts deliver identical electrical performance with 15.4V clamping voltage and 26A peak pulse current. Selection depends on whether the application requires operation below -50°C.

Q: Are all three parts available in the same package configuration?

A: Yes. SMAJ9.0CE3/TR13, SMAJ9.0CA, and SMAJ9.0CA-13-F are all supplied in DO-214AC (SMA) surface-mount packages in tape and reel format, ensuring compatibility with standard automated assembly processes.

Q: What compliance certifications apply to these substitute parts?

A: All three parts are RoHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Both substitute parts are classified as REACH Unaffected and carry ECCN EAR99 designation.

Q: How do the electrical performance differences affect circuit design?

A: The substitute parts deliver lower peak pulse current (26A versus 29.5A) and lower maximum clamping voltage (15.4V versus 16.9V). Applications requiring the full 29.5A current handling or 16.9V clamping specification must use the primary SMAJ9.0CE3/TR13 part. Applications with design margins accommodating 26A and 15.4V specifications can use either substitute without circuit modification.

Q: What inventory levels are available for each part?

A: SMAJ9.0CE3/TR13 (Microchip) has 813 pieces in stock. SMAJ9.0CA (MDD) has 54,100 pieces in stock. SMAJ9.0CA-13-F (Diodes Incorporated) has 1,800 pieces in stock.