SMBJ18A/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ18A/TR13 is an active-status transient voltage suppressor (TVS) diode manufactured by YAGEO in Surface Mount DO-214AA (SMB) package format. This unidirectional zener diode is designed for general-purpose transient voltage suppression applications with a reverse standoff voltage of 18V and peak pulse current handling of 20.6A. The component is supplied in Tape & Reel packaging and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

SMBJ18A/TR13

YAGEOIn Stock: 1965SMBJ18A/TR13 Datasheet

Current PartRFQ

P6SMBJ18AS_R1_00001

Panjit International Inc.In Stock: 1339P6SMBJ18AS_R1_00001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ18A/TR13 are identified based on strict electrical and mechanical parameter matching within the transient voltage suppressor category. The substitution logic requires equivalence across the following critical parameters:

• Voltage Rating: Reverse standoff voltage of 18V (typical), breakdown voltage minimum of 20V, and clamping voltage maximum of 29.2V at peak pulse current
• Current Handling: Peak pulse current of 20.6A at 10/1000µs pulse duration
• Power Dissipation: Peak pulse power rating of 600W
• Package Compatibility: DO-214AA (SMB) surface mount package
• Thermal Performance: Operating temperature range of -55°C to 150°C (junction temperature)
• Device Type: Unidirectional zener diode configuration with single channel

Parts meeting all these parameters are classified as direct electrical and mechanical equivalents suitable for component substitution in the same application circuit.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ18A/TR13 (YAGEO) and P6SMBJ18AS_R1_00001 (Panjit International Inc.) are active-status products with identical electrical specifications and mechanical compatibility. Selection between these parts is based on the following engineering criteria:

Compliance & Certification: Both parts maintain ROHS3 compliance and carry EAR99 export classification. The SMBJ18A/TR13 is REACH Affected, while the P6SMBJ18AS_R1_00001 is REACH Unaffected. Organizations subject to REACH regulations should verify applicability to their supply chain requirements.

Inventory & Availability: The SMBJ18A/TR13 maintains 1934 pieces in stock, while the P6SMBJ18AS_R1_00001 maintains 1248 pieces in stock. Both quantities support production requirements for surface mount assembly operations.

Thermal & Environmental Performance: Both parts operate across the identical temperature range of -55°C to 150°C (junction temperature) with MSL 1 rating, indicating unlimited moisture sensitivity tolerance and suitability for standard storage and handling conditions.

Package Standardization: Both parts utilize the DO-214AA (SMB) surface mount package in Tape & Reel format, ensuring direct mechanical and electrical compatibility on printed circuit boards without layout or assembly modifications.

Frequently Asked Questions (FAQ)

Q: Can the P6SMBJ18AS_R1_00001 be used as a direct replacement for the SMBJ18A/TR13?

A: Yes. The P6SMBJ18AS_R1_00001 meets all electrical and mechanical parameters specified for the SMBJ18A/TR13. Both parts share identical voltage ratings (18V reverse standoff, 20V breakdown minimum, 29.2V clamping maximum), current handling (20.6A peak pulse), power dissipation (600W), operating temperature range (-55°C to 150°C), and DO-214AA (SMB) package format. Direct substitution is supported without circuit modification.

Q: Are there package compatibility concerns when substituting between these parts?

A: No. Both the SMBJ18A/TR13 and P6SMBJ18AS_R1_00001 utilize identical DO-214AA (SMB) surface mount packages supplied in Tape & Reel format. Footprint, lead spacing, and solder pad dimensions are standardized across both parts, enabling direct placement on existing printed circuit board designs without layout changes.

Q: What is the difference in REACH compliance status between these parts?

A: The SMBJ18A/TR13 is classified as REACH Affected, while the P6SMBJ18AS_R1_00001 is classified as REACH Unaffected. Organizations operating under REACH regulations should verify which classification aligns with their supply chain requirements and regulatory obligations before component selection.

Q: Do both parts support the same thermal operating range?

A: Yes. Both the SMBJ18A/TR13 and P6SMBJ18AS_R1_00001 operate across the identical junction temperature range of -55°C to 150°C. Thermal performance and derating characteristics are equivalent across both parts.

Q: What is the moisture sensitivity rating for these TVS diodes?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity level rating. This classification indicates unlimited shelf life under standard storage conditions without moisture bake-out requirements prior to assembly.

Q: Are both parts suitable for general-purpose transient voltage suppression applications?

A: Yes. Both the SMBJ18A/TR13 and P6SMBJ18AS_R1_00001 are classified for general-purpose applications. The 18V reverse standoff voltage, 20.6A peak pulse current, and 600W peak pulse power rating support transient suppression in standard industrial and commercial electronic circuits.