MMSZ4697-TP Zener Diode 10V 500mW SOD-123 Equivalent & Substitute Parts

Part Overview

The MMSZ4697-TP is a 10 V, 500 mW surface mount zener diode manufactured by Micro Commercial Co in SOD-123 package. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. The part operates across a temperature range of -55°C to 150°C and features ±5% voltage tolerance with 1 µA reverse leakage current at 7.6 V. Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity for applications requiring 10 V zener regulation in compact surface mount form factors.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	10	V
Power - Maximum	500	mW
Tolerance	±5%	—
Mounting Type	Surface Mount	—
Package / Case	SOD-123	—
Operating Temperature Range	-55 to 150	°C
Voltage - Forward (Max) @ If	950 mV @ 10 mA	—
Current - Reverse Leakage @ Vr	1 µA @ 7.6 V	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MMSZ4697-TP is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - Zener (Nominal): 10 V
Power - Maximum: 500 mW or greater
Package / Case: SOD-123 (surface mount form factor compatibility)
Mounting Type: Surface Mount
Operating Temperature Range: Minimum -55°C to 150°C coverage
RoHS3 Compliance: Required
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Parameters:

Tolerance: ±5% or ±6% (acceptable variance for voltage regulation applications)
Voltage - Forward (Max) @ If: 900–950 mV @ 10 mA
Current - Reverse Leakage: Specified at comparable voltage reference points

Parts meeting all primary criteria and operating within secondary parameter ranges are classified as direct substitutes. Parts with reduced power ratings (250 mW) or different package geometries are identified separately due to application-specific constraints.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Power (Max)	Tolerance	Package	Vf (Max) @ 10mA	Temp Range	RoHS3
MMSZ4697-TP	Micro Commercial Co	10 V	500 mW	±5%	SOD-123	950 mV	-55 to 150°C	Yes
BZT52C10-7-F	Diodes Incorporated	10 V	500 mW	±6%	SOD-123	900 mV	-65 to 150°C	Yes
BZT52C10LP-7	Diodes Incorporated	10 V	250 mW	±6%	0402 (1006 Metric)	900 mV	-65 to 150°C	Yes
MMSZ10T1G	onsemi	10 V	500 mW	±5%	SOD-123	900 mV	-55 to 150°C	Yes
MMSZ4697T1G	onsemi	10 V	500 mW	±5%	SOD-123	900 mV	-55 to 150°C	Yes
MMSZ5240BT1G	onsemi	10 V	500 mW	±5%	SOD-123	900 mV	-55 to 150°C	Yes
MMSZ5240BT3G	onsemi	10 V	500 mW	±5%	SOD-123	900 mV	-55 to 150°C	Yes

Engineering Selection Recommendations

Direct Substitutes (Full Compatibility):

The following parts are direct substitutes for MMSZ4697-TP based on matching voltage, power rating, package geometry, and compliance certifications:

MMSZ4697T1G (onsemi): Identical base part number with Cut Tape & Digi-Reel packaging. Maintains ±5% tolerance, 500 mW power rating, and SOD-123 package. Active product status with RoHS3 compliance.
MMSZ10T1G (onsemi): Alternative onsemi 10 V, 500 mW zener in SOD-123 package. Meets all primary substitution criteria with ±5% tolerance and identical temperature range.
MMSZ5240BT1G (onsemi): 10 V, 500 mW zener in SOD-123 package with ±5% tolerance. Part of MMSZ52xxxT1G series. Active product status with RoHS3 compliance.
MMSZ5240BT3G (onsemi): Tape & Reel packaged variant of MMSZ5240BT1G. Identical electrical specifications and SOD-123 package. Maintains RoHS3 compliance.
BZT52C10-7-F (Diodes Incorporated): 10 V, 500 mW zener in SOD-123 package. Tolerance of ±6% is within acceptable variance. Extended temperature range (-65 to 150°C) provides additional thermal margin. Active product status with RoHS3 compliance.

Conditional Substitute (Power Derating Required):

BZT52C10LP-7 (Diodes Incorporated): 10 V zener with reduced 250 mW power rating in 0402 (1006 Metric) package. This part is suitable only for applications where power dissipation does not exceed 250 mW. Package geometry differs from SOD-123, requiring PCB layout modification. Active product status with RoHS3 compliance.

All substitute parts maintain Active product status, RoHS3 compliance, REACH unaffected designation, and Moisture Sensitivity Level 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can MMSZ4697T1G replace MMSZ4697-TP in all applications?

A: Yes. MMSZ4697T1G is a direct substitute with identical electrical specifications (10 V, 500 mW, ±5% tolerance, SOD-123 package). The difference is packaging format: MMSZ4697-TP is supplied in Tape & Reel (TR), while MMSZ4697T1G is supplied in Cut Tape (CT) & Digi-Reel. Both are Active status with RoHS3 compliance.

Q: What is the difference between BZT52C10-7-F and MMSZ4697-TP?

A: Both are 10 V, 500 mW zener diodes in SOD-123 package. BZT52C10-7-F has ±6% tolerance versus ±5% for MMSZ4697-TP. BZT52C10-7-F operates from -65°C (versus -55°C for MMSZ4697-TP), providing extended low-temperature performance. Forward voltage is 900 mV versus 950 mV. Both are RoHS3 compliant.

Q: Why is BZT52C10LP-7 listed as a conditional substitute?

A: BZT52C10LP-7 has a reduced power rating of 250 mW compared to 500 mW for MMSZ4697-TP. It is suitable only for applications where power dissipation does not exceed 250 mW. Additionally, the package is 0402 (1006 Metric) instead of SOD-123, requiring PCB layout changes.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH unaffected status, matching the compliance profile of MMSZ4697-TP.

Q: What is the significance of ±5% versus ±6% tolerance?

A: Both tolerances are acceptable for zener voltage regulation. ±5% tolerance (MMSZ4697-TP, onsemi parts) provides tighter voltage control. ±6% tolerance (BZT52C10-7-F) is acceptable where voltage regulation margin is sufficient. Selection depends on application voltage accuracy requirements.

Q: Can I use MMSZ5240BT1G and MMSZ5240BT3G interchangeably?

A: Yes, electrically. Both are identical 10 V, 500 mW zener diodes in SOD-123 package with ±5% tolerance. The difference is packaging: MMSZ5240BT1G is Cut Tape & Digi-Reel, while MMSZ5240BT3G is Tape & Reel. Selection depends on assembly equipment and inventory management requirements.

Q: What is the operating temperature range for all substitutes?

A: MMSZ4697-TP and onsemi substitutes (MMSZ10T1G, MMSZ4697T1G, MMSZ5240BT1G, MMSZ5240BT3G) operate from -55°C to 150°C. Diodes Incorporated parts (BZT52C10-7-F, BZT52C10LP-7) operate from -65°C to 150°C, providing extended low-temperature capability.

Q: Are there inventory considerations for substitute selection?

A: Yes. Inventory levels vary: MMSZ5240BT1G has 216,587 pcs available, MMSZ4697T1G has 70,200 pcs, and BZT52C10-7-F has 22,952 pcs. MMSZ4697-TP has 3,691 pcs. Substitute selection may be influenced by supply availability and lead time requirements.

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