SMAJ4753A-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The SMAJ4753A-TP is a 36 V, 1 W surface mount zener diode manufactured by Micro Commercial Co in DO-214AC (SMA) package format. This component is classified as Active and RoHS3 Compliant. Substitute parts are identified based on matching electrical specifications including nominal zener voltage, power rating, tolerance, operating temperature range, and package compatibility. Alternative components may be required due to inventory availability, packaging format preferences, or supply chain considerations.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	36 V
Power - Max	1 W
Tolerance	±5%
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMAJ4753A-TP are qualified based on the following criteria:

Electrical Equivalence Requirements:

Nominal zener voltage of 36 V
Maximum power rating of 1 W
Voltage tolerance of ±5%
Operating temperature range of -65°C to 150°C
Surface mount mounting type

Package Compatibility:

DO-214AC or SMA package designation
Physical form factor compatible with SMA footprint

Compliance Requirements:

RoHS3 Compliant status
MSL rating of 1 (Unlimited)

Parts meeting these criteria are electrically and mechanically interchangeable within the specified application parameters.

Parameter Comparison

Parameter	SMAJ4753A-TP	SMAZ36-TP	SMAZ36-13-F
Manufacturer	Micro Commercial Co	Micro Commercial Co	Diodes Incorporated
Voltage - Zener (Nom) (Vz)	36 V	36 V	36 V
Tolerance	±5%	±5%	±5%
Power - Max	1 W	1 W	1 W
Impedance (Max) (Zzt)	50 Ohms	40 Ohms	40 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 27.4 V	500 nA @ 27.4 V	500 nA @ 27.4 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA	1.2 V @ 200 mA	1.2 V @ 200 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

All three components listed are Active products with RoHS3 Compliance and MSL rating of 1 (Unlimited), meeting regulatory and environmental requirements for equivalent substitution.

SMAZ36-TP (Micro Commercial Co): This part maintains the same nominal zener voltage, power rating, and tolerance as the SMAJ4753A-TP. The primary difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel). Secondary electrical differences include lower impedance (40 Ohms versus 50 Ohms) and lower reverse leakage current (500 nA versus 5 µA), representing improved performance characteristics. Forward voltage specification extends to 200 mA versus 100 mA.

SMAZ36-13-F (Diodes Incorporated): This part is electrically equivalent to SMAZ36-TP with identical nominal zener voltage, power rating, tolerance, and operating temperature range. Impedance and reverse leakage specifications match SMAZ36-TP. The manufacturer differs from the main part, and packaging format is Cut Tape & Digi-Reel. This component offers the highest inventory availability among the three options.

Selection between these substitutes depends on packaging format requirements and inventory availability rather than electrical performance, as all meet the specified application parameters.

Frequently Asked Questions (FAQ)

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

A: Yes. Both components share identical nominal zener voltage (36 V), power rating (1 W), tolerance (±5%), operating temperature range (-65°C to 150°C), and DO-214AC SMA package designation. The primary difference is packaging format: SMAZ36-TP is supplied in Tape & Reel format while SMAJ4753A-TP is supplied in Cut Tape & Digi-Reel format. Electrical performance of SMAZ36-TP is equivalent or superior.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) & Digi-Reel packaging supplies components on individual tape segments suitable for manual handling or small-scale assembly. Tape & Reel (TR) packaging supplies components on continuous reels optimized for automated pick-and-place assembly equipment. Both formats contain the same component; packaging selection depends on assembly process requirements.

Q: Are there electrical performance differences between SMAJ4753A-TP and the substitute parts?

A: SMAJ4753A-TP specifies maximum impedance of 50 Ohms and reverse leakage current of 5 µA at 27.4 V. Both SMAZ36-TP and SMAZ36-13-F specify 40 Ohms impedance and 500 nA reverse leakage current at the same voltage. These represent tighter specifications in the substitute parts, indicating improved performance characteristics while maintaining functional equivalence.

Q: Can SMAZ36-13-F from Diodes Incorporated replace SMAJ4753A-TP from Micro Commercial Co?

A: Yes. Both components meet identical electrical specifications for nominal zener voltage, power rating, tolerance, and operating temperature. Cross-manufacturer substitution is valid when electrical and package specifications are equivalent. SMAZ36-13-F is RoHS3 Compliant with MSL rating of 1, matching the compliance profile of SMAJ4753A-TP.

Q: What packaging format should be selected for automated assembly?

A: Tape & Reel (TR) format is optimized for automated pick-and-place assembly equipment. SMAZ36-TP is supplied in Tape & Reel format. Cut Tape & Digi-Reel format is suitable for manual assembly or lower-volume production processes.

Q: Are all substitute parts RoHS3 Compliant?

A: Yes. SMAJ4753A-TP, SMAZ36-TP, and SMAZ36-13-F are all RoHS3 Compliant with MSL rating of 1 (Unlimited), meeting environmental and regulatory requirements for equivalent substitution.

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