SMLJ9.0CA Equivalent & Substitute Parts

Part Overview

The SMLJ9.0CA is a bidirectional transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 9V reverse standoff voltage, 15.4V maximum clamping voltage, and 3000W peak pulse power rating in a DO-214AB (SMC) package. The part is actively produced and RoHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching or compatible electrical characteristics and mechanical specifications that allow direct functional replacement in circuit designs.

Substiute Parts

SMLJ9.0CA

Bourns Inc.In Stock: 743SMLJ9.0CA Datasheet

Current PartRFQ

SMDJ9.0CA

Alpha & Omega Semiconductor Inc.In Stock: 30319SMDJ9.0CA Datasheet

DirectRFQ

SMCJ11CA-13-F

Diodes IncorporatedIn Stock: 3677SMCJ11CA-13-F Datasheet

SimilarRFQ

SMCJ9.0CA

Taiwan Semiconductor CorporationIn Stock: 84258SMCJ9.0CA Datasheet

SimilarRFQ

SMCJ9.0CA-TP

Micro Commercial CoIn Stock: 4169SMCJ9.0CA-TP Datasheet

SimilarRFQ

SMDJE9-0CA

Eaton - Electronics DivisionIn Stock: 6789SMDJE9-0CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMLJ9.0CA are categorized based on the following electrical and mechanical compatibility criteria:

Direct Equivalents match all critical parameters: 9V reverse standoff voltage, 10V minimum breakdown voltage, 15.4V maximum clamping voltage, DO-214AB (SMC) package, surface-mount configuration, and -55°C to 150°C operating temperature range.

Similar Alternatives maintain the same voltage class (9V standoff) and package format but may vary in peak pulse current rating or power dissipation capacity, suitable for applications with lower transient current requirements.

Voltage-Class Alternatives operate at different voltage levels (11V standoff) and are applicable only when circuit protection requirements differ from the original 9V specification.

The following parameters determine substitution eligibility:

• Reverse standoff voltage (9V primary class)
• Breakdown voltage range (10V minimum)
• Clamping voltage (15.4V maximum)
• Package type (DO-214AB/SMC)
• Mounting configuration (Surface Mount)
• Temperature operating range compatibility

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility): SMDJ9.0CA (Alpha & Omega Semiconductor Inc.) provides direct functional equivalence with identical voltage ratings (9V standoff, 15.4V clamping), matching peak pulse current (194.9A), and equivalent 3000W power dissipation. Both parts maintain RoHS3 compliance and active production status. This part is suitable for one-to-one substitution in existing designs.

Compatible Alternatives (Same Voltage Class): SMCJ9.0CA (Taiwan Semiconductor Corporation), SMCJ9.0CA-TP (Micro Commercial Co), and SMDJE9-0CA (Eaton - Electronics Division) maintain the 9V voltage specification and 15.4V clamping voltage. These parts are compatible with circuits designed for the SMLJ9.0CA but feature reduced peak pulse current ratings (20.5A to 102A) and lower power dissipation (1500W to 3000W). Selection depends on actual transient current requirements in the application. All maintain RoHS compliance and active status.

Voltage-Class Alternative (Different Protection Level): SMCJ11CA-13-F (Diodes Incorporated) operates at 11V reverse standoff with 18.2V clamping voltage. This part is applicable only when circuit protection requirements specify higher voltage thresholds and is not interchangeable with the 9V-rated SMLJ9.0CA in standard applications.

All substitute parts are actively produced, RoHS compliant, and available in DO-214AB (SMC) surface-mount packages compatible with existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can SMDJ9.0CA directly replace SMLJ9.0CA in production? A: Yes. SMDJ9.0CA from Alpha & Omega Semiconductor Inc. provides direct equivalence with matching voltage ratings, peak pulse current (194.9A vs 194.8A), and 3000W power dissipation. Both parts are RoHS3 compliant and actively produced.

Q: What is the difference between SMCJ9.0CA and SMLJ9.0CA? A: Both maintain identical voltage specifications (9V standoff, 15.4V clamping). The primary difference is peak pulse current: SMCJ9.0CA handles 102A compared to SMLJ9.0CA's 194.8A. SMCJ9.0CA is suitable for applications with lower transient current requirements and reduced power dissipation (1500W vs 3000W).

Q: Is SMCJ9.0CA-TP compatible with SMLJ9.0CA? A: SMCJ9.0CA-TP maintains the same voltage ratings and clamping characteristics but with reduced peak pulse current (97.4A) and power dissipation (1500W). It is compatible for applications with lower transient stress. This part supports extended operating temperature to 175°C.

Q: Can SMCJ11CA-13-F replace SMLJ9.0CA? A: No. SMCJ11CA-13-F operates at 11V reverse standoff with 18.2V clamping voltage, providing higher protection thresholds. It is not interchangeable with the 9V-rated SMLJ9.0CA and is applicable only when circuit design specifies 11V voltage class protection.

Q: Are all substitute parts available in the same DO-214AB package? A: Yes. All listed substitute parts use DO-214AB (SMC) surface-mount packaging, ensuring mechanical and footprint compatibility with existing PCB designs for the SMLJ9.0CA.

Q: What compliance certifications apply to substitute parts? A: All substitute parts maintain RoHS3 compliance (or RoHS compliance for SMDJE9-0CA). All are actively produced and suitable for current design implementations.

Q: Which substitute part has the highest peak pulse current rating? A: SMDJ9.0CA from Alpha & Omega Semiconductor Inc. matches the original SMLJ9.0CA with 194.9A peak pulse current and 3000W power dissipation, providing equivalent transient handling capability.