SMAJ4741CE3/TR13 Equivalent & Substitute Parts Reference

Part Overview

The SMAJ4741CE3/TR13 is an active Zener diode from Microchip Technology. It features a nominal Zener voltage of 11 V, 2 W maximum power dissipation, ±2% tolerance, and is provided in a DO-214AC, SMA surface mount package. Its electrical, mechanical, and environmental specifications align with the requirements for Zener voltage regulation and circuit protection in surface mount designs. Finding alternative models is essential for cases of inventory depletion, supply chain requirements, or specification matching in compatible circuits.

Substiute Parts

SMAJ4741CE3/TR13

Microchip TechnologyIn Stock: 898SMAJ4741CE3/TR13 Datasheet

Current PartRFQ

1SMA5926BT3G

onsemiIn Stock: 101441SMA5926BT3G Datasheet

SimilarRFQ

SZ1SMA5926BT3G

onsemiIn Stock: 690SZ1SMA5926BT3G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are selected strictly based on matching core electrical parameters: Zener voltage (nominal), mounting type, package/case compatibility, and compliance certifications. Zener voltage must be identical. Package type (DO-214AC, SMA) ensures mechanical interchangeability for surface mount designs. Regulatory compliance (RoHS, REACH, ECCN) and product status (active) are maintained. Power rating, tolerance, impedance, and leakage current must be compared directly for engineering appropriateness as per the provided parameters.

Parameter Comparison

Engineering Selection Recommendations

All part numbers—SMAJ4741CE3/TR13, 1SMA5926BT3G, and SZ1SMA5926BT3G—are active products and ROHS3 compliant, with MSL level 1 (Unlimited), and REACH unaffected. All use the DO-214AC, SMA surface mount package and share category classification (Diodes, Zener). Substitute selection must be based on inventory availability, regulatory compliance, and matched environmental and mounting requirements. The substitute SZ1SMA5926BT3G includes automotive qualification.

Frequently Asked Questions (FAQ)

Q1: What is the critical parameter for substituting a Zener diode in surface mount applications?
A1: The nominal Zener voltage must match. Mechanical interchangeability requires the same mounting type and package/case (DO-214AC, SMA).

Q2: Are substitute parts compatible in the same PCB footprint?
A2: All listed parts use DO-214AC, SMA surface mount packaging, ensuring footprint compatibility.

Q3: How do tolerance and maximum power affect substitutability?
A3: Tolerance and power ratings are key selection criteria. The main part features ±2% tolerance and 2 W power; substitute parts offer ±5% or unspecified tolerance and 1.5 W power.

Q4: Do substitute parts offer the same environmental compliance?
A4: All substitutes are ROHS3 compliant, MSL 1 (Unlimited), and REACH unaffected. ECCN and HTSUS codes are identical.

Q5: What distinguishes the SZ1SMA5926BT3G as a substitute?
A5: SZ1SMA5926BT3G has automotive grade and AEC-Q101 qualification in addition to the same electrical and mechanical configuration.

Q6: Why is DO-214AC, SMA package important for substitution?
A6: It guarantees surface mount compatibility and consistent soldering profiles in automated assembly.