BZT52C24-TP Equivalent & Substitute Parts

Part Overview

The BZT52C24-TP is a 24 V Zener diode rated at 200 mW, manufactured by Micro Commercial Co in SOD-123 surface mount packaging. This component is classified as Active and maintains full RoHS3 compliance. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage applications across industrial and commercial electronics.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit higher power dissipation ratings or alternative packaging formats. The parts listed below maintain electrical compatibility within the specified tolerance and operating parameters while offering variations in power rating, impedance, or packaging configuration.

Key Parameters

Parameter	BZT52C24-TP Value	Unit	Substitution Relevance
Voltage - Zener (Nom)	24	V	Critical - Must match for voltage regulation function
Tolerance	±6%	%	Acceptable range for substitute selection
Power - Max	200	mW	Minimum threshold; higher ratings acceptable
Impedance (Max)	70	Ohms	Reference parameter for dynamic response
Current - Reverse Leakage @ Vr	100 nA @ 16.8 V	nA	Leakage specification for circuit performance
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	mV	Forward conduction characteristic
Operating Temperature	-65°C ~ 150°C	°C	Thermal operating range
Package / Case	SOD-123	—	Physical form factor; alternatives noted
Mounting Type	Surface Mount	—	Assembly compatibility
RoHS Status	ROHS3 Compliant	—	Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitution logic for the BZT52C24-TP is based on the following criteria:

Primary Substitution Criteria (Must Match):

Zener voltage: 24 V nominal
Mounting type: Surface Mount
Package compatibility: SOD-123 or SOD-323 (same footprint family)
RoHS3 compliance status
Operating temperature range: minimum -55°C to 150°C

Secondary Substitution Criteria (Acceptable Variation):

Power rating: Equal to or greater than 200 mW
Tolerance: ±2% to ±6% acceptable
Impedance: 33 to 70 Ohms acceptable
Reverse leakage current: 10 to 100 nA range acceptable
Forward voltage: 900 mV to 1.5 V @ specified current acceptable

Packaging Variants:

Tape & Reel (TR) primary packaging
Cut Tape (CT) and Digi-Reel® acceptable for equivalent electrical performance
SOD-323 package acceptable as mechanical alternative with same electrical ratings

Substitutes are grouped into Direct Equivalents (identical power rating and packaging) and Similar Alternatives (higher power ratings or different packaging with equivalent electrical function).

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance (%)	Power (mW)	Zzt (Ohms)	Package	Packaging Type	Temp Range (°C)	RoHS3
BZT52C24-TP	Micro Commercial Co	24	±6	200	70	SOD-123	Tape & Reel	-65 ~ 150	Yes
BZT52C24-13-F	Diodes Incorporated	24	±6	500	70	SOD-123	Tape & Reel	-65 ~ 150	Yes
BZT52C24-7-F	Diodes Incorporated	24	±6	500	70	SOD-123	Cut Tape & Digi-Reel	-65 ~ 150	Yes
BZT52B24-E3-08	Vishay General Semiconductor	24	±2	410	70	SOD-123	Cut Tape & Digi-Reel	-55 ~ 150	Yes
BZT52C24Q-7-F	Diodes Incorporated	24	±5.83	370	70	SOD-123	Tape & Reel	-65 ~ 150	Yes
CMHZ4709 TR PBFREE	Central Semiconductor Corp	24	±5	500	—	SOD-123	Tape & Reel	-65 ~ 150	Yes
CMHZ5252B TR PBFREE	Central Semiconductor Corp	24	±5	500	33	SOD-123	Tape & Reel	-65 ~ 150	Yes
DDZ24CS-7	Diodes Incorporated	24	±3	200	35	SOD-323	Tape & Reel	-65 ~ 150	Yes
DDZ9709-7	Diodes Incorporated	24	±5	500	—	SOD-123	Tape & Reel	-65 ~ 150	Yes
MMSZ24T1G	onsemi	24	±5	500	70	SOD-123	Tape & Reel	-55 ~ 150	Yes
MMSZ4709-E3-08	Vishay General Semiconductor	24	±5	500	—	SOD-123	Tape & Reel	-55 ~ 150	Yes

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Packaging Specifications):

BZT52C24-13-F and BZT52C24-7-F from Diodes Incorporated are direct functional equivalents with 500 mW power rating, maintaining the same 24 V nominal voltage, ±6% tolerance, and SOD-123 package. Both are Active status products with full RoHS3 compliance. The primary difference is packaging format: BZT52C24-13-F is supplied in Tape & Reel, while BZT52C24-7-F is supplied in Cut Tape & Digi-Reel format. Selection between these depends on assembly equipment compatibility and procurement volume requirements.

Higher Tolerance Precision Alternative:

BZT52B24-E3-08 from Vishay General Semiconductor offers ±2% tolerance (tighter than the ±6% specification of BZT52C24-TP) with 410 mW power rating in SOD-123 package. This part is suitable for applications requiring improved voltage regulation accuracy. Operating temperature range is -55°C to 150°C, which is acceptable for most industrial applications but does not extend to the lower -65°C limit of the primary part.

Automotive-Grade Alternative:

BZT52C24Q-7-F from Diodes Incorporated is qualified to AEC-Q101 automotive standard with 370 mW power rating and ±5.83% tolerance. This part is specified for automotive applications and maintains the full -65°C to 150°C operating range. Selection of this part is appropriate when automotive-grade reliability is required.

Alternative Packaging (SOD-323):

DDZ24CS-7 from Diodes Incorporated provides equivalent 24 V, 200 mW specification in SOD-323 package (SC-76) instead of SOD-123. This part features ±3% tolerance and lower impedance (35 Ohms). Selection of this part is appropriate only when PCB layout or assembly constraints require the smaller SOD-323 form factor.

High-Volume Inventory Alternatives:

MMSZ24T1G from onsemi and MMSZ4709-E3-08 from Vishay General Semiconductor both offer 500 mW power rating with 24 V specification and are available in high inventory quantities. Both maintain RoHS3 compliance and SOD-123 packaging. Operating temperature range for these parts is -55°C to 150°C.

Central Semiconductor Options:

CMHZ4709 TR PBFREE and CMHZ5252B TR PBFREE from Central Semiconductor Corp both provide 500 mW, 24 V specification with ±5% tolerance in SOD-123 Tape & Reel packaging. CMHZ5252B TR PBFREE features lower impedance (33 Ohms) compared to the 70 Ohm specification of BZT52C24-TP.

All listed substitutes maintain Active product status and full RoHS3 compliance, ensuring regulatory compatibility with the primary part.

Frequently Asked Questions (FAQ)

Q: Can I use a 500 mW Zener diode as a substitute for the 200 mW BZT52C24-TP?

A: Yes. A higher power rating is acceptable for direct substitution. The 500 mW parts (BZT52C24-13-F, BZT52C24-7-F, CMHZ4709 TR PBFREE, CMHZ5252B TR PBFREE, DDZ9709-7, MMSZ24T1G, MMSZ4709-E3-08) maintain the same 24 V nominal voltage and SOD-123 package, providing equivalent voltage regulation function with increased thermal margin. Circuit performance remains unchanged.

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

A: Both are surface mount delivery formats. Tape & Reel (TR) supplies components on continuous tape in reel format, suitable for high-speed automated assembly. Cut Tape (CT) & Digi-Reel supplies components on tape segments or alternative reel formats. Electrical performance is identical; selection depends on assembly equipment compatibility and procurement volume.

Q: Can I substitute the SOD-123 package with SOD-323 (DDZ24CS-7)?

A: SOD-323 substitution is possible only if PCB layout permits the smaller form factor. DDZ24CS-7 maintains the same 24 V voltage and 200 mW power rating but uses SOD-323 (SC-76) package instead of SOD-123. Verify PCB footprint compatibility before selection. Electrical performance is equivalent.

Q: Does tolerance variation affect circuit performance?

A: Tolerance variation within ±2% to ±6% range does not affect circuit function for voltage regulation applications. BZT52B24-E3-08 offers ±2% tolerance for applications requiring tighter voltage accuracy. Standard ±5% to ±6% tolerance parts are suitable for general-purpose regulation and protection circuits.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance status, ensuring regulatory compatibility with the primary BZT52C24-TP part for applications subject to RoHS requirements.

Q: What is the significance of impedance (Zzt) variation?

A: Impedance affects dynamic response characteristics during transient voltage changes. The primary part specifies 70 Ohms maximum impedance. Substitutes with lower impedance (DDZ24CS-7 at 35 Ohms, CMHZ5252B TR PBFREE at 33 Ohms) provide faster transient response. Higher impedance values remain within acceptable range for standard regulation applications.

Q: Can I use BZT52C24Q-7-F in non-automotive applications?

A: Yes. BZT52C24Q-7-F is AEC-Q101 qualified for automotive use but functions identically in non-automotive circuits. Selection of this part is optional and appropriate only when automotive-grade reliability documentation is required.

Q: What is the minimum operating temperature requirement for substitute selection?

A: The primary part specifies -65°C to 150°C. Most substitutes maintain this range. BZT52B24-E3-08, MMSZ24T1G, and MMSZ4709-E3-08 specify -55°C to 150°C, which is acceptable for industrial applications but does not extend to -65°C. Verify application temperature requirements before selecting these parts.

Q: Are there inventory considerations for substitute selection?

A: Yes. Inventory levels vary significantly. MMSZ24T1G (onsemi) has 55,300 pcs in stock, BZT52B24-E3-08 (Vishay) has 85,957 pcs, and DDZ24CS-7 (Diodes) has 17,100 pcs. Higher inventory availability may reduce lead time risk for time-sensitive applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message