SMBJ11-E3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ11-E3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates with an 11V reverse standoff voltage and provides 20.1V maximum clamping voltage at peak pulse current, designed for general-purpose transient protection in surface-mount applications using the DO-214AA (SMB) package.

The SMBJ11-E3/52 is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with active product status, offering identical or compatible electrical and mechanical specifications suitable for direct replacement in circuit designs.

Substiute Parts

SMBJ11-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1115SMBJ11-E3/52 Datasheet

Current PartRFQ

SMBJ11A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 45499SMBJ11A-E3/52 Datasheet

DirectRFQ

SMBJ11E3/TR13

Microchip TechnologyIn Stock: 905SMBJ11E3/TR13 Datasheet

DirectRFQ

SMBJ11A

MeritekIn Stock: 50169SMBJ11A Datasheet

MFR RecommendedRFQ

SMBJ11A

MeritekIn Stock: 50169SMBJ11A Datasheet

MFR RecommendedRFQ

SMBJ11A

MeritekIn Stock: 50169SMBJ11A Datasheet

MFR RecommendedRFQ

SMBJ11A-TP

Micro Commercial CoIn Stock: 3671SMBJ11A-TP Datasheet

MFR RecommendedRFQ

TV06B110J-HF

Comchip TechnologyIn Stock: 771TV06B110J-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ11-E3/52 are classified based on electrical parameter compatibility within the following criteria:

Group A - Electrical Parameter Match (20.1V Clamping): Parts maintaining identical clamping voltage (20.1V @ Ipp) and peak pulse current (29.9A) specifications. These substitutes provide direct functional equivalence with no circuit redesign required.

Group B - Electrical Parameter Variation (18.2V Clamping): Parts with reduced maximum clamping voltage (18.2V @ Ipp) and increased peak pulse current (32.97A to 33A). These substitutes operate within the same 11V reverse standoff voltage class but exhibit different transient suppression characteristics. Selection depends on circuit tolerance for lower clamping voltage.

Common Substitution Parameters:

• Reverse Standoff Voltage: 11V (all substitutes)
• Breakdown Voltage (Min): 12.2V (all substitutes)
• Package: DO-214AA, SMB (all substitutes)
• Mounting Type: Surface Mount (all substitutes)
• Power Rating: 600W (all substitutes)
• RoHS3 Compliance: All substitutes
• MSL Rating: 1 (Unlimited) for all substitutes

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - Electrical Equivalence: SMBJ11E3/TR13 (Microchip Technology) provides direct electrical equivalence to the SMBJ11-E3/52 with identical clamping voltage (20.1V) and peak pulse current (29.9A). This part carries active product status, ROHS3 compliance, and extended operating temperature range (-65°C ~ 150°C). Selection of this substitute requires no circuit modification.

Alternative Substitutes - Reduced Clamping Voltage: SMBJ11A-E3/52 (Vishay), SMBJ11A (Meritek), SMBJ11A-TP (Micro Commercial Co), and TV06B110J-HF (Comchip Technology) operate with 18.2V maximum clamping voltage and increased peak pulse current (32.97A to 33A). All maintain the 11V reverse standoff voltage and 600W power rating. These substitutes are suitable where circuit design tolerates lower clamping voltage. All carry active product status and ROHS3 compliance.

Temperature Consideration: SMBJ11A-TP extends the upper operating temperature limit to 175°C, compared to 150°C for the original part and most substitutes. This option is applicable for high-temperature environments.

Compliance Status: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBJ11A-E3/52 directly replace SMBJ11-E3/52 in existing designs? A: SMBJ11A-E3/52 is electrically compatible but operates with 18.2V maximum clamping voltage versus 20.1V for the original part. Direct substitution is acceptable if circuit design tolerates this 1.9V reduction in clamping voltage. Both parts share identical reverse standoff voltage (11V), breakdown voltage (12.2V), and power rating (600W).

Q: What is the difference between SMBJ11E3/TR13 and SMBJ11A-E3/52? A: SMBJ11E3/TR13 (Microchip) maintains 20.1V clamping voltage and 29.9A peak pulse current, matching the original SMBJ11-E3/52 specifications. SMBJ11A-E3/52 (Vishay) reduces clamping voltage to 18.2V with increased peak pulse current to 33A. SMBJ11E3/TR13 provides direct electrical equivalence; SMBJ11A-E3/52 requires circuit tolerance verification.

Q: Are all substitute parts available in the same DO-214AA (SMB) package? A: Yes. All listed substitute parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and footprint compatibility with the original SMBJ11-E3/52 design.

Q: Does operating temperature range affect part selection? A: Most substitutes operate within -55°C ~ 150°C, matching the original part. SMBJ11E3/TR13 extends the lower limit to -65°C. SMBJ11A-TP extends the upper limit to 175°C. Temperature range selection depends on application requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, meeting standard environmental and manufacturing requirements.

Q: Which substitute offers the best availability? A: SMBJ11A (Meritek) and SMBJ11A-E3/52 (Vishay) offer the highest inventory levels (50,100 and 45,400 units respectively) among active substitutes, providing supply chain reliability for production applications.