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MM3Z7V5
Diotec Semiconductor
ZENER SOD323F 7.5V 0.3W 5%
237898 Pcs New Original In Stock
Zener Diode 7.5 V 300 mW ±5% Surface Mount SOD-323
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5.0 / 5.0
- (377 Ratings)
MM3Z7V5
Product Overview
12944457
DiGi Electronics Part Number
MM3Z7V5-DGManufacturer
Diotec Semiconductor
MM3Z7V5
Description
ZENER SOD323F 7.5V 0.3W 5%Inventory
237898 Pcs New Original In Stock
Zener Diode 7.5 V 300 mW ±5% Surface Mount SOD-323
Quantity
Minimum 1
Minimum 1
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MM3Z7V5 Technical Specifications
Category
Diodes, Zener, Single Zener Diodes
Packaging
-
Series
-
Product Status
Active
Voltage - Zener (Nom) (Vz)
7.5 V
Tolerance
±5%
Power - Max
300 mW
Impedance (Max) (Zzt)
15 Ohms
Current - Reverse Leakage @ Vr
500 nA @ 4 V
Voltage - Forward (Vf) (Max) @ If
1 V @ 10 mA
Operating Temperature
-50°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
SC-90, SOD-323F
Supplier Device Package
SOD-323
Datasheet & Documents
Datasheets
Download MM3Z7V5 Product Specification (PDF)
HTML Datasheet
MM3Z7V5-DG
Environmental & Export Classification
RoHS Status
Not applicable
Moisture Sensitivity Level (MSL)
Not Applicable
REACH Status
Vendor Undefined
ECCN
EAR99
HTSUS
8541.10.0000
Additional Information
Other Names
2796-MM3Z7V5TR
Standard Package
3,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
배송이 빠르고 고객 지원이 세심해서 늘 만족해요. 정말 최고라고 생각합니다.
Dec 02, 2025
Their secure packaging protocols demonstrate a strong focus on customer satisfaction.
Dec 02, 2025
Fast, efficient shipping made my shopping experience seamless.
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Frequently Asked Questions (FAQ)
Can the MM3Z7V5 be used as a drop-in replacement for BZX84-C7V5 in a high-temperature PCB design, and what are the key differences to watch for?
Yes, the MM3Z7V5 can generally replace the BZX84-C7V5 in low-power zener applications, but attention must be paid to package thermal dissipation. Both are 7.5V ±5% zener diodes in SOD-323 packages, but the MM3Z7V5 specifies a tighter Zzt (impedance) of 15Ω max, which improves regulation under dynamic loads. However, the MM3Z7V5's 300 mW power rating requires careful PCB copper layout to manage thermal rise above 75°C ambient. Use thermal reliefs and at least 20 mm² of copper pad to ensure reliable operation near max junction temperature (150°C). Verify that leakage current (500 nA @ 4V) meets your standby power budget in battery-sensitive systems.
How does the MM3Z7V5 perform in voltage regulation for a 3.3V microcontroller powered from a noisy 12V rail through a current-limiting resistor?
The MM3Z7V5 is not ideal for direct 3.3V MCU regulation from 12V due to its 7.5V nominal zener voltage. Attempting to use it as a shunt regulator in this configuration creates excess power dissipation—over 2.2W in worst-case scenarios, far exceeding its 300 mW limit. Instead, use a 3.6V zener or low-dropout regulator (LDO) for 3.3V domains. However, the MM3Z7V5 can protect MCU inputs via clamping when combined with a series resistor, especially in ESD-prone interfaces where its 150°C TJ rating ensures stability in industrial environments.
What are the design-in risks when using the MM3Z7V5 for reverse polarity protection in a 9V battery-powered sensor module?
Using the MM3Z7V5 for reverse polarity protection is not recommended due to its forward voltage limitation—1V max @ 10mA—rather than acting as a blocking diode. If the device conducts in reverse fault conditions, it will go into avalanche breakdown at 7.5V, risking thermal runaway without current limiting. For 9V systems, a series Schottky diode like 1N5819 (for through-hole) or MBRS340 (SMD) is safer. Use the MM3Z7V5 only for voltage clamping or reference in parallel with the supply rail, not as a series-blocking component.
Is the MM3Z7V5 suitable for precision voltage reference applications compared to specialized references like TL431 or LM4040?
No, the MM3Z7V5 lacks the temperature stability and long-term accuracy of precision references such as the LM4040 (0.1% initial tolerance) or TL431 (2% tolerance, better thermal performance). While the MM3Z7V5 offers ±5% tolerance and 15Ω Zzt, its zener voltage drift over temperature is not specified, making it unsuitable for ADC references or feedback loops requiring accuracy. However, it can serve as a cost-effective clamp or rough reference in non-critical circuits, such as LED driver feedback or transient suppression where moderate stability is acceptable.
What PCB layout practices should be followed when integrating the MM3Z7V5 in an automotive ECU exposed to thermal cycling and voltage transients?
In automotive ECU designs, optimize the MM3Z7V5 layout by minimizing trace lengths to reduce inductance during voltage transients. Use a symmetric SOD-323 footprint with thermal vias (if possible on thin boards) to stabilize junction temperature across -40°C to 125°C operating ranges. Since the MM3Z7V5 has a 300 mW power rating, limit average current to below 20 mA with a series resistor, especially during load dump events. Confirm board cleanliness to prevent leakage paths—its 500 nA leakage @ 4V can increase with contamination. Place the MM3Z7V5 close to the protected node (e.g., IC input) to reduce parasitic pickup in high-noise environments.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MM3Z7V5 CAD Models
Diotec Semiconductor MM3Z7V5 PCB symbols & footprints
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