BZT52C3V0S RRG Equivalent & Substitute Parts

Part Overview

The BZT52C3V0S RRG is a 3 V Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 200 mW power dissipation in a surface mount SOD-323F package. This component is classified as Active and is ROHS3 compliant. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage applications in electronic circuits. Alternative equivalent and substitute parts may be required due to inventory availability, packaging format preferences, tolerance requirements, or supply chain considerations.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	3	V
Tolerance	±5%	-
Power - Max	200	mW
Impedance (Max)	100	Ohms
Current - Reverse Leakage @ Vr	9	µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1	V @ 10 mA
Operating Temperature	-65 to 150	°C (TJ)
Mounting Type	Surface Mount	-
Package / Case	SC-90, SOD-323F	-

Substitute Part Grouping Explanation

Substitution of Zener diodes is determined by the following critical parameters: nominal Zener voltage (Vz), maximum power rating, package type, and operating temperature range. All substitute parts listed maintain the 3 V nominal Zener voltage and 200 mW power rating required for functional equivalence. Package compatibility is maintained across all substitutes through the SOD-323F form factor. Tolerance variations (±2% versus ±5%) represent tighter or standard voltage regulation specifications and do not prevent substitution when circuit design permits. Impedance variations within the specified range do not affect basic Zener diode operation. All listed substitutes are Active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Parameter Comparison

Parameter	BZT52C3V0S RRG	BZT52C3V0S R9G	BZT52B3V0S R9G	MM3Z3V0B	MM3Z3V0C	UDZVTE-173.0B
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Fairchild Semiconductor	onsemi	Rohm Semiconductor
Voltage - Zener (Nom)	3 V	3 V	3 V	3 V	3 V	3 V
Tolerance	±5%	±5%	±2%	±2%	±5%	Not specified
Power - Max	200 mW	200 mW	200 mW	200 mW	200 mW	200 mW
Impedance (Max)	100 Ohms	100 Ohms	100 Ohms	89 Ohms	89 Ohms	Not specified
Current - Reverse Leakage @ Vr	9 µA @ 1 V	9 µA @ 1 V	9 µA @ 1 V	9 µA @ 1 V	9 µA @ 1 V	Not specified
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA	1 V @ 10 mA	1 V @ 10 mA	1 V @ 10 mA	1 V @ 10 mA	Not specified
Operating Temperature	-65 to 150°C	-65 to 150°C	-65 to 150°C	-65 to 150°C	-65 to 150°C	-55 to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-90, SOD-323F	SC-90, SOD-323F	SC-90, SOD-323F	SC-90, SOD-323F	SC-90, SOD-323F	SC-90, SOD-323F
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not specified	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

BZT52C3V0S R9G and BZT52B3V0S R9G are parametric equivalents manufactured by Taiwan Semiconductor Corporation. BZT52C3V0S R9G maintains identical specifications to the main part with ±5% tolerance and is available in Cut Tape & Digi-Reel® packaging. BZT52B3V0S R9G offers tighter ±2% tolerance with the same electrical performance and is suitable for applications requiring improved voltage regulation accuracy. Both parts are Active products with ROHS3 compliance and unlimited MSL rating.

Similar Substitutes (Cross-Manufacturer Alternatives):

MM3Z3V0B (Fairchild Semiconductor) and MM3Z3V0C (onsemi) are cross-manufacturer alternatives that maintain the 3 V nominal voltage and 200 mW power rating. MM3Z3V0B provides ±2% tolerance with 89 Ohms impedance. MM3Z3V0C offers ±5% tolerance with 89 Ohms impedance and is available in higher inventory quantities (20,300 pcs). Both are Active products with ROHS3 compliance.

UDZVTE-173.0B (Rohm Semiconductor) is a similar substitute with 3 V nominal voltage and 200 mW power rating. This part uses UMD2 package format while maintaining SOD-323F mechanical compatibility. Operating temperature range is -55°C to 150°C, which is narrower at the lower end compared to the main part. UDZVTE-173.0B is ROHS3 compliant with unlimited MSL and offers the highest inventory availability (122,300 pcs).

All substitute parts are Active products with ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification, matching the regulatory profile of the main part.

Frequently Asked Questions (FAQ)

Q: Can BZT52C3V0S R9G be used as a direct replacement for BZT52C3V0S RRG?

A: Yes. BZT52C3V0S R9G is a parametric equivalent with identical electrical specifications (3 V, 200 mW, ±5% tolerance) and package type (SOD-323F). The difference is packaging format: R9G is supplied in Cut Tape & Digi-Reel® while RRG is supplied in Tape & Reel. Both are suitable for the same circuit applications.

Q: What is the difference between BZT52B3V0S R9G and BZT52C3V0S R9G?

A: Both parts are 3 V, 200 mW Zener diodes in SOD-323F packages from Taiwan Semiconductor Corporation. The primary difference is tolerance: BZT52B3V0S R9G has ±2% tolerance while BZT52C3V0S R9G has ±5% tolerance. The ±2% tolerance provides tighter voltage regulation and is suitable for precision applications. Both are electrically and mechanically compatible.

Q: Are MM3Z3V0B and MM3Z3V0C interchangeable with the BZT52C3V0S RRG?

A: Yes, with consideration of tolerance specifications. Both Fairchild and onsemi parts maintain 3 V nominal voltage, 200 mW power rating, and SOD-323F package compatibility. MM3Z3V0B offers ±2% tolerance while MM3Z3V0C offers ±5% tolerance. Impedance is 89 Ohms compared to 100 Ohms in the main part, which does not affect basic Zener diode function. Both are suitable substitutes for voltage regulation and protection applications.

Q: Can UDZVTE-173.0B replace BZT52C3V0S RRG?

A: UDZVTE-173.0B is a functional substitute with matching 3 V nominal voltage and 200 mW power rating in a mechanically compatible SOD-323F package. The part uses UMD2 supplier package format. Operating temperature range is -55°C to 150°C, which is narrower at the lower temperature limit (-55°C versus -65°C). This part is suitable for applications within the -55°C to 150°C range. UDZVTE-173.0B offers the highest inventory availability among all substitutes.

Q: What packaging formats are available for these Zener diodes?

A: The main part BZT52C3V0S RRG is supplied in Tape & Reel (TR) format. Parametric equivalents BZT52C3V0S R9G and BZT52B3V0S R9G are available in Cut Tape (CT) & Digi-Reel® format. Cross-manufacturer alternatives MM3Z3V0B, MM3Z3V0C, and UDZVTE-173.0B are available in Cut Tape (CT) & Digi-Reel® format. All parts use the same SOD-323F physical package for PCB mounting.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant and REACH Unaffected. Moisture sensitivity level is 1 (Unlimited) for all parts except MM3Z3V0B, where this specification is not provided. All parts carry EAR99 ECCN classification and HTSUS code 8541.10.0050.

Q: Which substitute offers the best inventory availability?

A: UDZVTE-173.0B from Rohm Semiconductor offers the highest inventory availability with 122,300 pcs in stock. MM3Z3V0C from onsemi is the second highest with 20,300 pcs. Both are suitable for high-volume production requirements.

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