SMBJ90CHE3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ90CHE3/52 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in the DO-214AA (SMB) package and provides 90V reverse standoff voltage with 160V maximum clamping voltage at peak pulse current. The part is currently classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

SMBJ90CHE3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 809SMBJ90CHE3/52 Datasheet

Current PartRFQ

SMBJ90CE3/TR13

Microchip TechnologyIn Stock: 934SMBJ90CE3/TR13 Datasheet

DirectRFQ

SMBJ90CA

MDDIn Stock: 29266SMBJ90CA Datasheet

MFR RecommendedRFQ

SMBJ90CA

MDDIn Stock: 29266SMBJ90CA Datasheet

MFR RecommendedRFQ

SMBJ90CA

MDDIn Stock: 29266SMBJ90CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ90CHE3/52 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 90V
• Voltage - Breakdown (Min): 100V
• Package / Case: DO-214AA, SMB (surface mount)
• Bidirectional Channels: 1
• Mounting Type: Surface Mount

Secondary Compatibility Parameters:

• Voltage - Clamping (Max) @ Ipp: 160V (maximum allowable)
• Current - Peak Pulse (10/1000µs): 3.8A (minimum acceptable)
• Power - Peak Pulse: 600W
• Operating Temperature Range: -55°C to 150°C (minimum acceptable)

Substitute parts must maintain the 90V reverse standoff voltage and 100V minimum breakdown voltage to ensure proper circuit protection. The DO-214AA package is mandatory for mechanical and thermal compatibility. Clamping voltage must not exceed 160V, and peak pulse current must meet or exceed 3.8A. Operating temperature range must encompass the specified -55°C to 150°C range.

Parameter Comparison

Engineering Selection Recommendations

SMBJ90CE3/TR13 (Microchip Technology) is the primary direct substitute for SMBJ90CHE3/52. This part maintains identical electrical specifications including 90V reverse standoff voltage, 100V breakdown voltage, 160V clamping voltage, and 3.8A peak pulse current. The part is currently in active production status, ensuring long-term availability. Operating temperature range extends to -65°C, providing superior low-temperature performance compared to the original part. ROHS3 compliance and MSL 1 rating match the original specification. Packaging is supplied in Tape & Reel format (TR13).

SMBJ90CA (MDD) is an alternative substitute with active product status and high inventory availability (29,200 pcs). This part meets the core 90V reverse standoff and 100V breakdown voltage requirements. Peak pulse current is rated at 4.1A, exceeding the original 3.8A specification. Clamping voltage is specified at 146V, which is lower than the original 160V maximum. Operating temperature range is -50°C to 150°C, which does not extend to the original -55°C minimum. This part is suitable for applications where the lower clamping voltage and reduced low-temperature range are acceptable.

Both substitute parts maintain DO-214AA package compatibility, surface mount mounting type, and ROHS3 compliance required for modern manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can SMBJ90CE3/TR13 be used as a direct replacement for SMBJ90CHE3/52?

A: Yes. SMBJ90CE3/TR13 maintains identical electrical specifications for reverse standoff voltage (90V), breakdown voltage (100V), clamping voltage (160V), and peak pulse current (3.8A). Both parts use the DO-214AA package. The primary difference is that SMBJ90CE3/TR13 is in active production status, whereas SMBJ90CHE3/52 is obsolete.

Q: What is the difference between SMBJ90CE3/TR13 and SMBJ90CA?

A: Both parts share the same 90V reverse standoff and 100V breakdown voltage. SMBJ90CE3/TR13 specifies 160V maximum clamping voltage and 3.8A peak pulse current. SMBJ90CA specifies 146V maximum clamping voltage and 4.1A peak pulse current. SMBJ90CE3/TR13 supports operating temperatures down to -65°C, while SMBJ90CA supports only -50°C minimum. Both use the DO-214AA package.

Q: Is the lower clamping voltage of SMBJ90CA (146V vs 160V) a concern?

A: Lower clamping voltage provides tighter voltage regulation during transient events. Whether this is acceptable depends on circuit requirements. If the original design specified 160V as a maximum allowable clamping voltage, SMBJ90CA at 146V is within acceptable limits. If the circuit requires exactly 160V clamping characteristics, SMBJ90CE3/TR13 is the appropriate choice.

Q: Are all substitute parts RoHS compliant?

A: Yes. SMBJ90CE3/TR13 and SMBJ90CA are both ROHS3 compliant, matching the original SMBJ90CHE3/52 specification.

Q: What is the difference between tape & reel (TR) and other packaging formats?

A: Tape & Reel packaging is standard for automated surface mount assembly. SMBJ90CE3/TR13 is supplied in TR13 format, which is compatible with standard pick-and-place equipment. This is the standard procurement format for high-volume manufacturing.

Q: Can I use SMBJ90CA if my application operates at -55°C?

A: SMBJ90CA is rated for -50°C minimum operating temperature. Use at -55°C is outside the specified operating range. SMBJ90CE3/TR13, rated to -65°C, is the appropriate choice for applications requiring -55°C operation.