MMSZ5246B-7-F Zener Diode Equivalent & Substitute Parts

Part Overview

The MMSZ5246B-7-F is a 16 V, 500 mW surface mount zener diode manufactured by Diodes Incorporated in SOD-123 package. This component is classified as Active and is ROHS3 compliant. The part is supplied in Cut Tape (CT) & Digi-Reel® packaging with 45,300 units currently in stock.

Equivalent and substitute parts are necessary to address supply chain continuity, packaging format requirements, and manufacturer availability. Alternative sources from qualified manufacturers provide functional interchangeability while maintaining electrical and mechanical specifications within defined tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	16	V
Tolerance	±5	%
Power - Maximum	500	mW
Package / Case	SOD-123	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the MMSZ5246B-7-F is determined by the following critical parameters:

Electrical Specifications:

Zener voltage: 16 V nominal
Tolerance: ±5%
Maximum power dissipation: 500 mW
Package type: SOD-123 (surface mount)

Environmental & Compliance:

Operating temperature range: -65°C to 150°C (or subset thereof)
RoHS3 compliance
Moisture Sensitivity Level: 1

Mechanical Compatibility:

Surface mount technology
SOD-123 package footprint

All substitute parts listed maintain identical electrical ratings and package specifications. Variations in packaging format (Cut Tape vs. Tape & Reel) and operating temperature lower limits do not affect functional interchangeability in circuit applications.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Package	Temp Range	Packaging Format	Inventory
MMSZ5246B-7-F	Diodes Incorporated	16 V	±5%	500 mW	SOD-123	-65 to 150°C	Cut Tape & Digi-Reel®	45,300
DDZ9703-7	Diodes Incorporated	16 V	±5%	500 mW	SOD-123	-65 to 150°C	Tape & Reel	15,600
MMSZ5246B-E3-08	Vishay General Semiconductor - Diodes Division	16 V	±5%	500 mW	SOD-123	-55 to 150°C	Tape & Reel	7,062
MMSZ5246B-TP	Micro Commercial Co	16 V	±5%	500 mW	SOD-123	-55 to 150°C	Tape & Reel	4,100
MMSZ5246BT1G	onsemi	16 V	±5%	500 mW	SOD-123	-55 to 150°C	Cut Tape & Digi-Reel®	133,400
MMSZ5246ET1G	onsemi	16 V	±5%	500 mW	SOD-123	-55 to 150°C	Tape & Reel	19,145

Engineering Selection Recommendations

All listed substitute parts are classified as Active products with ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). Selection among equivalent parts is based on the following criteria:

Packaging Format Compatibility:

MMSZ5246BT1G (onsemi) provides identical Cut Tape & Digi-Reel® packaging to the primary part with the highest inventory availability (133,400 units).
DDZ9703-7 (Diodes Incorporated) maintains the same manufacturer as the primary part with Tape & Reel packaging.
MMSZ5246ET1G (onsemi) and MMSZ5246B-TP (Micro Commercial Co) are available in Tape & Reel format for automated assembly processes.

Operating Temperature Consideration:

MMSZ5246B-7-F and DDZ9703-7 support the full -65°C to 150°C range.
MMSZ5246B-E3-08, MMSZ5246B-TP, MMSZ5246BT1G, and MMSZ5246ET1G operate within -55°C to 150°C. These parts are suitable for applications where the lower temperature limit does not extend below -55°C.

Compliance Status: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5246BT1G replace MMSZ5246B-7-F directly in production?

A: Yes. Both parts share identical electrical specifications (16 V, ±5%, 500 mW), SOD-123 package, and Cut Tape & Digi-Reel® packaging format. The operating temperature range of MMSZ5246BT1G (-55°C to 150°C) is a subset of the primary part (-65°C to 150°C). Direct substitution is valid for applications where the lower operating temperature does not fall below -55°C.

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

A: Cut Tape & Digi-Reel® packaging provides components on cut tape segments compatible with both manual and automated pick-and-place equipment. Tape & Reel packaging supplies components on continuous reel format optimized for high-volume automated assembly. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts, including MMSZ5246B-7-F, DDZ9703-7, MMSZ5246B-E3-08, MMSZ5246B-TP, MMSZ5246BT1G, and MMSZ5246ET1G, are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Which substitute part has the highest inventory availability?

A: MMSZ5246BT1G (onsemi) has 133,400 units in stock, representing the highest availability among all listed alternatives.

Q: Can I use DDZ9703-7 if my application requires the full -65°C to 150°C temperature range?

A: Yes. DDZ9703-7 supports the complete -65°C to 150°C operating temperature range, matching the primary part MMSZ5246B-7-F. This part is manufactured by Diodes Incorporated and is available in Tape & Reel packaging.

Q: What electrical parameters must remain constant for substitution?

A: Zener voltage (16 V nominal), tolerance (±5%), maximum power dissipation (500 mW), and SOD-123 package type must remain constant. All listed substitute parts maintain these specifications.

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