SMLJ75CA-TP Equivalent & Substitute Parts

Part Overview

The SMLJ75CA-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates with a 75V reverse standoff voltage and provides 121V maximum clamping voltage at peak pulse current of 24.8A, delivering 3000W peak pulse power dissipation. The device is housed in a DO-214AB (SMC) package and is currently in active production status with 828 pieces available in bulk packaging. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

SMLJ75CA-TP

Micro Commercial CoIn Stock: 894SMLJ75CA-TP Datasheet

Current PartRFQ

SMDJ75CA

SMC Diode SolutionsIn Stock: 9335SMDJ75CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMLJ75CA-TP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 75V
• Voltage - Breakdown (Min): 83.3V
• Voltage - Clamping (Max) @ Ipp: 121V
• Current - Peak Pulse (10/1000µs): 24.8A
• Power - Peak Pulse: 3000W
• Bidirectional Channels: 1
• Type: Zener

Mechanical Equivalence Criteria:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount

The SMDJ75CA manufactured by SMC Diode Solutions meets all electrical specifications and mechanical requirements for direct substitution. Both devices share identical voltage ratings, peak pulse current capacity, and power dissipation characteristics. The DO-214AB (SMC) package ensures mechanical and thermal compatibility in surface-mount applications.

Parameter Comparison

*Operating temperature upper limit differs: SMLJ75CA-TP supports 175°C junction temperature, while SMDJ75CA supports 150°C. For applications requiring operation above 150°C, the SMLJ75CA-TP is required.

Engineering Selection Recommendations

Primary Selection (SMLJ75CA-TP): Select the SMLJ75CA-TP when the application requires the extended upper operating temperature limit of 175°C junction temperature. This part is manufactured by Micro Commercial Co and is available in bulk packaging. Product status is active with established supply availability.

Substitute Selection (SMDJ75CA): The SMDJ75CA manufactured by SMC Diode Solutions is a direct electrical and mechanical equivalent for applications operating within the -55°C to 150°C temperature range. This substitute provides identical voltage clamping, peak pulse current, and power dissipation characteristics. The SMDJ75CA is available in multiple packaging formats (Cut Tape, Digi-Reel®, and Tape & Reel), offering greater procurement flexibility. Both parts carry EAR99 ECCN classification and share identical HTSUS code 8541.10.0080. The SMDJ75CA is RoHS3 compliant with MSL rating of 1 (Unlimited).

Compliance Considerations: Both parts are classified as REACH Unaffected and carry EAR99 export control status. The SMDJ75CA provides additional RoHS3 compliance documentation. For applications requiring specific compliance certifications, verify documentation requirements with your procurement department.

Frequently Asked Questions (FAQ)

Q: Can SMDJ75CA replace SMLJ75CA-TP in all applications?

A: The SMDJ75CA is a direct substitute for applications operating within -55°C to 150°C junction temperature range. If your application requires sustained operation above 150°C, the SMLJ75CA-TP with its 175°C rating is required. All other electrical and mechanical parameters are identical.

Q: What are the key differences between these parts?

A: The primary differences are: (1) Operating temperature upper limit (SMLJ75CA-TP: 175°C vs. SMDJ75CA: 150°C), (2) Manufacturer (Micro Commercial Co vs. SMC Diode Solutions), and (3) Packaging options (SMLJ75CA-TP: Bulk vs. SMDJ75CA: Cut Tape, Digi-Reel®, Tape & Reel). All voltage, current, and power specifications are identical.

Q: Are the DO-214AB packages mechanically interchangeable?

A: Yes. Both SMLJ75CA-TP and SMDJ75CA use the DO-214AB (SMC) surface-mount package. They are mechanically and thermally interchangeable on PCBs designed for this package type.

Q: What is the significance of the 75V reverse standoff voltage?

A: The 75V reverse standoff voltage indicates the maximum continuous reverse voltage the device can withstand without conducting. This parameter determines the protection threshold for the circuit. Both parts share this specification.

Q: How do I select between bulk and tape & reel packaging?

A: SMLJ75CA-TP is supplied in bulk packaging, suitable for smaller orders or manual assembly. SMDJ75CA is available in Cut Tape, Digi-Reel®, and Tape & Reel formats, optimized for automated pick-and-place assembly. Select based on your manufacturing process requirements.

Q: Are there any compliance or certification differences?

A: Both parts carry EAR99 ECCN classification and REACH Unaffected status. The SMDJ75CA includes RoHS3 compliance certification and MSL rating of 1 (Unlimited). Verify specific compliance requirements for your application.

Q: What does the 24.8A peak pulse current specification mean?

A: This is the maximum instantaneous current the TVS diode can conduct during a 10/1000µs transient pulse without damage. Both parts are rated for identical 24.8A peak pulse current, ensuring equivalent transient protection performance.