SMAZ36-TP Equivalent & Substitute Parts

Part Overview

The SMAZ36-TP is a surface mount Zener diode manufactured by Micro Commercial Co, rated for 36 V nominal Zener voltage and 1 W maximum power dissipation in a DO-214AC (SMAJ) package. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring 36 V Zener regulation in surface mount configurations.

Substiute Parts

SMAZ36-TP

Micro Commercial CoIn Stock: 7928SMAZ36-TP Datasheet

Current PartRFQ

SMAJ4753A-TP

Micro Commercial CoIn Stock: 6326SMAJ4753A-TP Datasheet

DirectRFQ

SZ1SMA5938BT3G

onsemiIn Stock: 8892SZ1SMA5938BT3G Datasheet

SimilarRFQ

SMAZ36-13-F

Diodes IncorporatedIn Stock: 25204SMAZ36-13-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMAZ36-TP is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Zener (Nom): 36 V (exact match required)
• Tolerance: ±5% (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Package / Case: DO-214AC, SMA (exact match required)
• Operating Temperature Range: -65°C to 150°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

Secondary Compatibility Parameters:

• Power - Max: 1 W or greater
• Impedance (Max): 40 Ohms or less
• Current - Reverse Leakage @ Vr: 500 nA or less @ 27.4 V
• Voltage - Forward (Max) @ If: 1.2 V or less @ specified current

Substitute parts are classified into two categories:

Direct Manufacturer Equivalent (SMAJ4753A-TP): Identical electrical specifications with alternative packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Meets all primary and secondary criteria with minor impedance variance (50 Ohms maximum versus 40 Ohms).

Parametric Equivalent (SMAZ36-13-F): Manufactured by Diodes Incorporated with identical electrical performance specifications and packaging designation. Meets all primary and secondary criteria with exact impedance match.

Similar Specification Part (SZ1SMA5938BT3G): Manufactured by onsemi with higher power rating (1.5 W versus 1 W) and automotive qualification (AEC-Q101). Meets all primary criteria with enhanced power capability and automotive-grade certification.

Parameter Comparison

Engineering Selection Recommendations

SMAJ4753A-TP (Direct Manufacturer Equivalent): This part is suitable for direct substitution in applications where packaging format flexibility is acceptable. Both components are manufactured by Micro Commercial Co with identical electrical performance. The impedance specification of 50 Ohms maximum is within acceptable tolerance for standard Zener regulation circuits. Reverse leakage current specification of 5 µA is higher than the main part but remains within acceptable limits for most applications. Forward voltage specification is referenced at 100 mA versus 200 mA on the main part, representing a different measurement condition rather than a performance limitation. All compliance certifications (RoHS3, REACH unaffected) are identical.

SMAZ36-13-F (Parametric Equivalent): This part provides exact electrical and thermal equivalence to the SMAZ36-TP with identical impedance (40 Ohms maximum) and reverse leakage current (500 nA @ 27.4 V) specifications. Manufactured by Diodes Incorporated, this component is suitable for direct substitution with no performance trade-offs. All compliance certifications match the main part. Higher inventory availability (25,100 pieces) supports supply chain continuity.

SZ1SMA5938BT3G (Similar Specification with Enhanced Capability): This onsemi component provides higher power dissipation capability (1.5 W versus 1 W) and automotive-grade qualification (AEC-Q101). The impedance specification of 38 Ohms is superior to the main part. Forward voltage specification of 1.5 V @ 200 mA is higher than the main part specification of 1.2 V @ 200 mA. This part is suitable for applications requiring automotive qualification or where higher power dissipation margin is required. All compliance certifications are identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can SMAJ4753A-TP be used as a direct replacement for SMAZ36-TP?

A: Yes. Both parts share identical Zener voltage (36 V), tolerance (±5%), power rating (1 W), operating temperature range (-65°C to 150°C), and package designation (DO-214AC, SMA). The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and impedance specification (50 Ohms maximum versus 40 Ohms maximum). The impedance variance is within acceptable tolerance for standard Zener regulation applications.

Q: What is the difference between SMAZ36-13-F and SMAZ36-TP?

A: SMAZ36-13-F is manufactured by Diodes Incorporated while SMAZ36-TP is manufactured by Micro Commercial Co. All electrical specifications are identical, including Zener voltage (36 V), power rating (1 W), impedance (40 Ohms maximum), reverse leakage current (500 nA @ 27.4 V), and forward voltage (1.2 V @ 200 mA). Both components are packaged in DO-214AC (SMA) format with identical compliance certifications.

Q: When should SZ1SMA5938BT3G be selected over SMAZ36-TP?

A: SZ1SMA5938BT3G should be selected when automotive-grade qualification (AEC-Q101) is required or when applications demand higher power dissipation margin. The 1.5 W power rating provides 50% additional capacity compared to the 1 W rating of SMAZ36-TP. The impedance specification of 38 Ohms is superior to the main part. Forward voltage is higher at 1.5 V @ 200 mA, which may affect circuit performance in applications with tight voltage regulation requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SMAJ4753A-TP, SMAZ36-13-F, and SZ1SMA5938BT3G are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are REACH unaffected.

Q: What is the significance of the impedance (Zzt) parameter in Zener diode selection?

A: Impedance (Zzt) represents the dynamic impedance of the Zener diode and affects voltage regulation performance. Lower impedance values provide better voltage regulation stability. SMAZ36-TP and SMAZ36-13-F both specify 40 Ohms maximum impedance. SMAJ4753A-TP specifies 50 Ohms maximum, which is acceptable for most applications but provides slightly less regulation performance. SZ1SMA5938BT3G specifies 38 Ohms maximum, providing superior regulation performance.

Q: Can reverse leakage current differences affect circuit performance?

A: Reverse leakage current affects standby power consumption and circuit biasing. SMAZ36-TP, SMAZ36-13-F, and SZ1SMA5938BT3G all specify 500 nA @ 27.4 V. SMAJ4753A-TP specifies 5 µA @ 27.4 V, which is 10 times higher. For most applications, this difference is negligible. In low-power or precision circuits where standby current is critical, SMAZ36-13-F or SZ1SMA5938BT3G are preferred.

Q: Are all substitute parts available in the same package format?

A: All parts are packaged in DO-214AC (SMA) format. However, packaging supply format differs: SMAZ36-TP and SZ1SMA5938BT3G are supplied in Tape & Reel (TR) format, while SMAJ4753A-TP and SMAZ36-13-F are supplied in Cut Tape (CT) & Digi-Reel® format. Physical component dimensions and PCB footprint are identical across all parts.