SMBJ75C-E3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ75C-E3/52 is a 75V Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, housed in a DO-214AA (SMB) surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The SMBJ75C-E3/52 provides transient voltage suppression for general-purpose applications with a 134V maximum clamping voltage and 4.5A peak pulse current capability. Substitute parts must maintain electrical compatibility within the specified parameter ranges while meeting current product availability and compliance requirements.

Substiute Parts

SMBJ75C-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 993SMBJ75C-E3/52 Datasheet

Current PartRFQ

SMBJ75CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 16133SMBJ75CA-E3/52 Datasheet

DirectRFQ

SMBJ75CE3/TR13

Microchip TechnologyIn Stock: 1025SMBJ75CE3/TR13 Datasheet

DirectRFQ

SMBJ7.5CA

MDDIn Stock: 45848SMBJ7.5CA Datasheet

MFR RecommendedRFQ

SMBJ75CA

MDDIn Stock: 45399SMBJ75CA Datasheet

MFR RecommendedRFQ

SMBJ75CA

MDDIn Stock: 45399SMBJ75CA Datasheet

MFR RecommendedRFQ

SMBJ75CA

MDDIn Stock: 45399SMBJ75CA Datasheet

MFR RecommendedRFQ

SMBJ75CA-13-F

Diodes IncorporatedIn Stock: 29379SMBJ75CA-13-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ75C-E3/52 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 75V
• Voltage - Breakdown (Min): 83.3V
• Package / Case: DO-214AA, SMB (surface mount compatibility)
• Bidirectional Channels: 1
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: 121V to 134V (within transient suppression design tolerance)
• Current - Peak Pulse (10/1000µs): 4.5A to 5.3A (within pulse handling capability)
• Operating Temperature Range: -50°C to -55°C minimum; 150°C maximum

Substitute parts must maintain the 75V standoff voltage and 83.3V minimum breakdown voltage to ensure proper circuit protection. Clamping voltage and peak pulse current variations within the specified ranges remain functionally compatible for general-purpose transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Electrical & Availability Match): SMBJ75CA-E3/52 (Vishay) is the direct equivalent from the original manufacturer. This part maintains identical standoff and breakdown voltages, operates across the same temperature range (-55°C to 150°C), and is currently in active production status with 16,070 units in stock. The clamping voltage of 121V and peak pulse current of 5A remain within acceptable design tolerance for general-purpose transient suppression.

Alternative Substitute (Exact Electrical Match): SMBJ75CE3/TR13 (Microchip) provides identical clamping voltage (134V) and peak pulse current (4.5A) to the original part, ensuring no performance deviation. This part extends the operating temperature range to -65°C minimum, offering enhanced low-temperature performance. Product status is active with 987 units available.

Secondary Substitutes (Voltage & Current Variation): SMBJ75CA-13-F (Diodes Incorporated) and SMBJ75CA (MDD) maintain the critical 75V standoff and 83.3V breakdown voltages with clamping voltages of 121V and peak pulse currents of 4.9A to 5.3A. These parts are in active production with high inventory availability (29,300 and 45,300 units respectively) and meet all compliance requirements.

All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can SMBJ75CA-E3/52 directly replace SMBJ75C-E3/52? A: Yes. Both parts share identical reverse standoff voltage (75V), breakdown voltage (83.3V), operating temperature range (-55°C to 150°C), and DO-214AA package. The clamping voltage difference (121V vs. 134V) remains within acceptable transient suppression design tolerance for general-purpose applications.

Q: What is the difference between SMBJ75CE3/TR13 and SMBJ75CA-E3/52? A: SMBJ75CE3/TR13 (Microchip) matches the original part's clamping voltage (134V) and peak pulse current (4.5A) exactly, while SMBJ75CA-E3/52 (Vishay) reduces clamping voltage to 121V with increased peak pulse current to 5A. Both maintain the 75V standoff voltage and are electrically compatible. SMBJ75CE3/TR13 offers extended low-temperature operation (-65°C minimum).

Q: Are MDD SMBJ75CA parts suitable substitutes? A: Yes. MDD SMBJ75CA parts maintain the 75V standoff and 83.3V breakdown voltages with 121V clamping voltage and 5.3A peak pulse current. These parameters fall within the allowable variation range for transient suppression. High inventory availability (45,300 units) supports procurement continuity.

Q: Does packaging differ between substitute parts? A: All substitute parts use DO-214AA (SMB) surface mount packaging, ensuring mechanical and electrical compatibility with the original SMBJ75C-E3/52 footprint. Tape & Reel (TR) packaging is available for automated assembly processes.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and reliability standards for PCB assembly and long-term storage.

Q: Which substitute offers the best low-temperature performance? A: SMBJ75CE3/TR13 (Microchip) extends the minimum operating temperature to -65°C, compared to -55°C for most alternatives. This provides enhanced performance in applications requiring operation below -55°C.