BZT52C16-13 Equivalent & Substitute Parts

Part Overview

The BZT52C16-13 is a 16 V, 500 mW Zener diode manufactured by Diodes Incorporated in SOD-123 surface mount packaging. This component is designed for voltage regulation and protection applications requiring a nominal Zener voltage of 16 V with ±6% tolerance. The BZT52C16-13 is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain functional compatibility while meeting current availability and compliance requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	16	V
Tolerance	±6%	—
Power - Max	500	mW
Impedance (Max)	40	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 11.2 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	—
Mounting Type	Surface Mount	—
Package / Case	SOD-123	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the BZT52C16-13 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - Zener (Nom): 16 V (exact match required)
Package / Case: SOD-123 (mechanical and electrical compatibility)
Mounting Type: Surface Mount (assembly process compatibility)
Power - Max: 500 mW or greater (functional equivalence)
Operating Temperature Range: Must encompass or exceed -65°C ~ 150°C

Secondary Compatibility Parameters:

Impedance (Max): 40 Ohms or lower (performance equivalence)
Current - Reverse Leakage: 100 nA or lower at specified voltage (functional equivalence)
Voltage - Forward (Vf): 900 mV or lower @ 10 mA (circuit compatibility)

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts with identical or superior electrical specifications and active product status, differing only in packaging format or manufacturer.

Manufacturer Recommended Substitutes: Parts from alternative manufacturers meeting the 16 V Zener voltage requirement with comparable power ratings and operating temperature ranges, though some may have reduced power ratings (410 mW) or modified tolerance specifications.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Vf (Max) @ If	Temp Range	Product Status	RoHS Status
BZT52C16-13	Diodes Incorporated	16 V	±6%	500 mW	40 Ω	900 mV @ 10 mA	-65°C ~ 150°C	Discontinued	Non-compliant
BZT52C16-13-F	Diodes Incorporated	16 V	±6%	500 mW	40 Ω	900 mV @ 10 mA	-65°C ~ 150°C	Active	ROHS3 Compliant
BZT52C16-7-F	Diodes Incorporated	16 V	±6%	500 mW	40 Ω	900 mV @ 10 mA	-65°C ~ 150°C	Active	ROHS3 Compliant
BZT52B16-E3-08	Vishay General Semiconductor	16 V	±2%	410 mW	40 Ω	—	-65°C ~ 150°C	Active	ROHS3 Compliant
BZT52C16-HE3-08	Vishay General Semiconductor	16 V	±5%	410 mW	40 Ω	—	-55°C ~ 150°C	Obsolete	ROHS3 Compliant
MMSZ4703-E3-08	Vishay General Semiconductor	16 V	±5%	500 mW	—	—	—	Active	ROHS3 Compliant
MMSZ4703-G3-08	Vishay General Semiconductor	16 V	±5%	500 mW	—	—	-55°C ~ 150°C	Active	ROHS3 Compliant
MMSZ5246B-HE3-08	Vishay General Semiconductor	16 V	±5%	500 mW	17 Ω	—	-55°C ~ 150°C	Obsolete	ROHS3 Compliant
MMSZ5246BT1G	onsemi	16 V	±5%	500 mW	17 Ω	900 mV @ 10 mA	-55°C ~ 150°C	Active	ROHS3 Compliant
BZT52C16	NextGen Components	16 V	±5%	500 mW	40 Ω	900 mV @ 10 mA	-65°C ~ 150°C	Active	RoHS Compliant
BZT52C16-TP	Micro Commercial Co	16 V	±6%	500 mW	40 Ω	900 mV @ 10 mA	-65°C ~ 150°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

First Priority - Direct Parametric Equivalents:

BZT52C16-13-F and BZT52C16-7-F are direct parametric equivalents manufactured by Diodes Incorporated. Both parts maintain identical electrical specifications to the BZT52C16-13 (16 V, ±6%, 500 mW, 40 Ω impedance, -65°C ~ 150°C operating range) and are ROHS3 compliant with active product status. Selection between these two depends on packaging requirements: BZT52C16-13-F is supplied in Tape & Reel format, while BZT52C16-7-F is supplied in Cut Tape & Digi-Reel format.

Second Priority - Functional Equivalents with Enhanced Compliance:

BZT52C16-TP (Micro Commercial Co) and BZT52C16 (NextGen Components) provide functional equivalence with identical electrical parameters and active product status. Both are ROHS compliant and maintain the full -65°C ~ 150°C operating temperature range. These parts are suitable for applications where the original manufacturer is not a critical requirement.

Third Priority - Alternative Manufacturers with Reduced Power Rating:

BZT52B16-E3-08 (Vishay) offers a 410 mW power rating versus the original 500 mW specification, with improved tolerance (±2% versus ±6%). This part is suitable for applications where the reduced power dissipation is acceptable and tighter voltage tolerance is beneficial. Operating temperature range remains -65°C ~ 150°C.

Fourth Priority - Enhanced Performance Alternatives:

MMSZ5246BT1G (onsemi) provides 500 mW power rating with reduced impedance (17 Ω versus 40 Ω), resulting in improved voltage regulation characteristics. This part is ROHS3 compliant and active, though the operating temperature range is limited to -55°C ~ 150°C. The reduced impedance makes this part suitable for applications requiring superior voltage stability.

Not Recommended:

BZT52C16-HE3-08 and MMSZ5246B-HE3-08 are both obsolete products and should not be selected for new designs despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can BZT52C16-13-F be used as a direct replacement for BZT52C16-13?

A: Yes. BZT52C16-13-F is a parametric equivalent with identical electrical specifications (16 V, ±6%, 500 mW, 40 Ω impedance) and operating temperature range (-65°C ~ 150°C). The primary difference is packaging format (Tape & Reel versus the original format) and ROHS3 compliance status. Both are SOD-123 surface mount packages with identical pin configurations.

Q: What is the difference between BZT52C16-13-F and BZT52C16-7-F?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is packaging format: BZT52C16-13-F is supplied in Tape & Reel (TR) format, while BZT52C16-7-F is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on assembly line requirements and tape reel compatibility.

Q: Why does BZT52B16-E3-08 have a lower power rating (410 mW) than the original (500 mW)?

A: BZT52B16-E3-08 is from a different product series (BZT52B versus BZT52C) with different thermal characteristics. The 410 mW rating is the maximum power dissipation for this specific device. It remains suitable for most applications where the original 500 mW part was used, provided the actual power dissipation in the circuit does not exceed 410 mW.

Q: Is MMSZ5246BT1G compatible with the original BZT52C16-13?

A: MMSZ5246BT1G is functionally compatible with identical 16 V Zener voltage and 500 mW power rating in SOD-123 packaging. The key difference is reduced impedance (17 Ω versus 40 Ω), which provides superior voltage regulation. The operating temperature range is -55°C ~ 150°C versus the original -65°C ~ 150°C. This part is suitable for applications where the reduced lower temperature limit is acceptable.

Q: What does the "-13-F" suffix in BZT52C16-13-F indicate?

A: The "-13-F" suffix indicates the specific packaging and lead configuration variant from Diodes Incorporated. The "-F" typically denotes Tape & Reel packaging format. The "-13" portion identifies the specific product variant within the BZT52C16 series.

Q: Can I use BZT52C16 (NextGen Components) in place of BZT52C16-13?

A: Yes. BZT52C16 from NextGen Components provides functional equivalence with identical electrical specifications (16 V, 500 mW, 40 Ω impedance) and operating temperature range (-65°C ~ 150°C). The tolerance is ±5% versus the original ±6%, which is an improvement. This part is ROHS compliant and has active product status.

Q: Why are some substitute parts marked as "Obsolete"?

A: Obsolete products have been discontinued by their manufacturers and are no longer recommended for new designs. While they may still meet electrical specifications, they should not be selected for applications requiring long-term component availability or future production runs. Active products are preferred for all new designs.

Q: What is the significance of ROHS3 compliance versus RoHS non-compliant?

A: ROHS3 compliance indicates the part meets current Restriction of Hazardous Substances regulations. The original BZT52C16-13 is RoHS non-compliant, which may restrict its use in certain applications or regions. All recommended substitute parts are ROHS3 compliant, ensuring regulatory compliance for new designs.

Q: Does impedance (Zzt) affect circuit performance?

A: Yes. Impedance affects voltage regulation quality. Lower impedance (such as 17 Ω in MMSZ5246BT1G) provides better voltage stability and faster response to load changes compared to higher impedance (40 Ω in BZT52C16-13). Selection depends on circuit requirements for voltage regulation precision.

Q: Can I substitute parts with different tolerance specifications?

A: Yes, provided the application circuit can tolerate the tolerance range. BZT52B16-E3-08 offers ±2% tolerance (tighter than the original ±6%), which is beneficial for precision applications. Parts with ±5% tolerance are generally acceptable as substitutes for ±6% specifications.

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