MMXZ5246B-TP Zener Diode 16V 200mW Equivalent & Substitute Parts

Part Overview

The MMXZ5246B-TP is a 16 V, 200 mW surface mount zener diode manufactured by Micro Commercial Co in SOD-323 packaging. 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 circuits. Equivalent and substitute parts are identified based on matching electrical characteristics and package compatibility to support design flexibility, inventory optimization, and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	16	V
Power - Max	200	mW
Tolerance	±5%	—
Impedance (Max)	17	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 12 V	—
Voltage - Forward (Max)	1.2 V @ 100 mA	—
Operating Temperature Range	-55°C to 150°C	—
Mounting Type	Surface Mount	—
Package / Case	SOD-323	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MMXZ5246B-TP is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 16 V nominal
Maximum power dissipation: 200 mW or greater
Tolerance: ±5% or tighter
Package type: SOD-323 or SOD-323F (compatible footprints)
Surface mount configuration
Operating temperature range: minimum -55°C to 150°C or wider
RoHS3 compliance

Substitution Categories:

Direct Equivalents — Parts with identical electrical specifications and SOD-323 packaging:

MMSZ5246BS-7-F (Diodes Incorporated)
DDZ9703S-7 (Diodes Incorporated)

Compatible Substitutes — Parts with matching zener voltage and power rating but different package variant (SOD-323F) or enhanced specifications:

MM3Z16VC (onsemi)
MM3Z16VB (onsemi)

Higher-Performance Substitutes — Parts with matching zener voltage but increased power rating or tighter tolerance:

BZX84J-B16,115 (NXP Semiconductors) — 550 mW, ±2% tolerance, automotive qualified
TDZ16J,115 (Nexperia USA Inc.) — 500 mW, ±2% tolerance, automotive qualified

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vz (Nom)	Power (Max)	Tolerance	Zzt (Max)	Reverse Leakage @ Vr	Vf (Max)	Temp Range	Package	RoHS3
MMXZ5246B-TP	Micro Commercial Co	16 V	200 mW	±5%	17 Ω	100 nA @ 12 V	1.2 V @ 100 mA	-55°C to 150°C	SOD-323	Yes
MMSZ5246BS-7-F	Diodes Incorporated	16 V	200 mW	±5%	17 Ω	100 nA @ 12 V	900 mV @ 10 mA	-65°C to 150°C	SOD-323	Yes
DDZ9703S-7	Diodes Incorporated	16 V	200 mW	±5%	—	50 nA @ 12.1 V	900 mV @ 10 mA	-65°C to 150°C	SOD-323	Yes
MM3Z16VC	onsemi	16 V	200 mW	±5%	37 Ω	45 nA @ 11.2 V	1 V @ 10 mA	-65°C to 150°C	SOD-323F	Yes
MM3Z16VB	onsemi	16 V	200 mW	±2%	37 Ω	45 nA @ 11.2 V	1 V @ 10 mA	-65°C to 150°C	SOD-323F	Yes
BZX84J-B16,115	NXP Semiconductors	16 V	550 mW	±2%	20 Ω	50 nA @ 11.2 V	1.1 V @ 100 mA	-55°C to 150°C	SOD-323F	—
TDZ16J,115	Nexperia USA Inc.	16 V	500 mW	±2%	20 Ω	50 nA @ 11.2 V	1.1 V @ 100 mA	-55°C to 150°C	SOD-323F	Yes

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

MMSZ5246BS-7-F and DDZ9703S-7 are direct functional equivalents to MMXZ5246B-TP. Both maintain 16 V nominal zener voltage, 200 mW power rating, and ±5% tolerance. MMSZ5246BS-7-F extends the operating temperature range to -65°C and is supplied by Diodes Incorporated with high inventory availability. DDZ9703S-7 similarly provides -65°C to 150°C operation and is available in high volume. Both are ROHS3 compliant with MSL 1 rating.

For Enhanced Tolerance and Extended Temperature Range:

MM3Z16VB (onsemi) provides tighter ±2% tolerance while maintaining 200 mW power rating and -65°C to 150°C operating range. This part uses SOD-323F package variant, which is mechanically compatible with SOD-323 footprints. MM3Z16VC offers the same power and temperature specifications with ±5% tolerance.

For Higher Power Dissipation Applications:

BZX84J-B16,115 (NXP Semiconductors) and TDZ16J,115 (Nexperia USA Inc.) provide increased power ratings of 550 mW and 500 mW respectively, with tighter ±2% tolerance. Both are AEC-Q101 automotive qualified. TDZ16J,115 is ROHS3 compliant and available in high volume. These parts use SOD-323F packaging and are suitable for applications requiring higher thermal headroom.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications. Parts designated as automotive grade (BZX84J-B16,115 and TDZ16J,115) carry AEC-Q101 qualification for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5246BS-7-F directly replace MMXZ5246B-TP in production?

A: Yes. MMSZ5246BS-7-F is electrically equivalent with identical zener voltage (16 V), power rating (200 mW), and tolerance (±5%). Both use SOD-323 packaging. The substitute offers extended temperature range (-65°C to 150°C versus -55°C to 150°C) and is pin-compatible.

Q: What is the difference between SOD-323 and SOD-323F packages?

A: SOD-323F is a variant of the SOD-323 package. Both are surface mount diode packages with identical pin spacing and footprint compatibility. SOD-323F may have different lead frame material or plating specifications. Parts in either package are mechanically interchangeable on standard PCB layouts.

Q: Can I use BZX84J-B16,115 or TDZ16J,115 as substitutes for the MMXZ5246B-TP?

A: Yes, with design considerations. Both parts maintain the 16 V zener voltage and are surface mount compatible. However, they provide higher power dissipation (550 mW and 500 mW respectively) and tighter tolerance (±2%). These characteristics make them suitable for applications requiring higher thermal capacity or tighter voltage regulation. Verify that the circuit design accommodates the higher power rating and does not rely on the original ±5% tolerance specification.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitutes except BZX84J-B16,115 explicitly state ROHS3 compliance. BZX84J-B16,115 does not provide RoHS status in the available data. Verify RoHS compliance with the supplier if this is a design requirement.

Q: Which substitute offers the best inventory availability?

A: TDZ16J,115 (Nexperia USA Inc.) has the highest inventory level at 100,400 pieces. DDZ9703S-7 (Diodes Incorporated) is also well-stocked at 35,300 pieces. Both are suitable for high-volume production requirements.

Q: What is the impact of using MM3Z16VB instead of MMXZ5246B-TP?

A: MM3Z16VB provides tighter tolerance (±2% versus ±5%), lower reverse leakage (45 nA @ 11.2 V versus 100 nA @ 12 V), and extended temperature range (-65°C to 150°C). The impedance is higher (37 Ω versus 17 Ω). These characteristics improve voltage regulation stability and reduce leakage current, making it suitable for precision voltage reference applications.

Q: Can I mix different substitute parts in the same production batch?

A: All listed substitutes are electrically compatible at the 16 V, 200 mW specification level. However, mixing parts with different tolerances (±5% versus ±2%), impedance values, or temperature ranges may introduce performance variation across units. Maintain consistency within a production batch unless the circuit design explicitly tolerates the parameter variations.

Q: What is the significance of AEC-Q101 qualification on BZX84J-B16,115 and TDZ16J,115?

A: AEC-Q101 qualification indicates these parts meet automotive industry reliability and quality standards. This certification is relevant only for automotive applications. For non-automotive use, this qualification provides no functional advantage over non-qualified equivalents.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message