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Nexperia USA Inc. MM5Z4V3T5GF
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- Part No.:
- MM5Z4V3T5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z4V3T5GF.pdf
- Description:
- DIODE ZENER 4.3V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,998
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Product details
Overview
MM5Z4V3T5GF from Nexperia is a general-purpose Zener diode in SOD523 (SC-79) package, designed for precision voltage regulation and reference functions in space-constrained circuits. It delivers a nominal Zener voltage of 4.3 V ±2 % at IZ = 5 mA, with low differential resistance (3.0 Ω), reverse current ≤600 µA at VR = 1 V, and thermal resistance Rth(j-sp) = 65 K/W - enabling stable operation in low-power sensor biasing and power-rail clamping applications.
For engineers reviewing the MM5Z4V3T5GF datasheet, MM5Z4V3T5GF pinout, MM5Z4V3T5GF application, or MM5Z4V3T5GF equivalent, key selection considerations include its 4.3 V regulation tolerance, ultra-small SOD523 footprint, cathode-marked polarity, and suitability for low-current (<200 mA) reverse-biased stabilization in portable and battery-powered systems.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its design centers on tight voltage tolerance (±2 %), low dynamic impedance (3.0 Ω at IZ = 5 mA), and predictable temperature coefficient (−3.5 to 0 mV/K) - critical for analog sensing and feedback loop accuracy.
Thermal performance is defined by junction-to-solder-point resistance of 65 K/W when mounted on FR4 PCB with ~35 mm² copper area at the cathode tab, supporting reliable power dissipation up to 300 mW at Tamb = 25 °C and non-repetitive surge handling of 40 W (100 µs square wave).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.21 V to 4.39 V at IZ = 5 mA - ensures precise 4.3 V regulation within ±2 % tolerance for reference stability |
| Differential Resistance rdiff | 3.0 Ω - minimizes output voltage variation under changing load current, improving regulation accuracy |
| Reverse Current IR | ≤600 µA at VR = 1 V - guarantees low leakage in standby or high-impedance bias networks |
| Total Power Dissipation Ptot | 300 mW at Tamb = 25 °C - defines maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power PZSM | 40 W (100 µs square wave) - supports transient overvoltage suppression without failure |
| Forward Voltage VF | 1.1 V at IF = 100 mA - enables use as low-drop rectifier or ESD clamp in forward conduction mode |
| Junction Temperature Tj | 150 °C maximum - sets upper thermal limit for reliable long-term operation in compact layouts |
Pinout & Package
SOD523 (SC-79) ultra-small surface-mount plastic package with 2 leads, 1.25 mm × 0.85 mm body size, 0.65 mm height, and cathode marked by a visible band on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal - required for correct reverse-bias orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables accurate voltage references without post-production trimming in low-cost consumer and industrial designs |
| Low 3.0 Ω differential resistance | Reduces output voltage drift under load changes - essential for stable feedback in LDOs and sensor excitation |
| SOD523 ultra-small footprint | Occupies only 1.06 mm² PCB area - ideal for wearables, hearing aids, and miniaturized IoT endpoints |
| 150 °C max junction temperature | Supports operation in thermally dense environments such as enclosed power modules and automotive cabin electronics |
| 65 K/W junction-to-solder-point thermal resistance | Facilitates efficient heat transfer through cathode pad - improves reliability during pulsed surge events |
Applications
| Portable Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable excitation voltage to MEMS pressure sensors in battery-powered medical monitors. IC Role / Device Role / Timing Role: Zener voltage reference diode operating in reverse breakdown to fix sensor bridge bias point. Use Value: ±2 % VZ tolerance and low rdiff ensure <±5 mV drift across 0–100 µA load variation, preserving measurement linearity. |
Use Scenario: Protecting USB 2.0 data lines from accidental 5.5 V overvoltage during hot-plug events. IC Role / Device Role / Timing Role: Low-capacitance (350 pF) shunt clamp limiting VCC-to-ground voltage during transients. Use Value: 40 W non-repetitive surge rating absorbs 100 µs spikes without degradation, while 1.1 V forward drop limits fault current. |
| Low-Power Microcontroller Reset Circuit | LED Current Regulation Reference |
|
Use Scenario: Generating a clean 4.3 V threshold for brown-out detection in ARM Cortex-M0+ microcontrollers. IC Role / Device Role / Timing Role: Precision Zener referenced into comparator input to trigger reset when supply drops below safe level. Use Value: −3.5 to 0 mV/K temperature coefficient minimizes trip-point drift over −40 °C to +85 °C ambient range. |
Use Scenario: Setting reference voltage for constant-current LED driver ICs in smart lighting modules. IC Role / Device Role / Timing Role: Shunt reference providing stable 4.3 V to driver's feedback pin for current-sense amplifier bias. Use Value: 300 mW power rating supports continuous operation at 5 mA bias current, ensuring long-term stability without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C4V3 | Same 4.3 V ±5 % tolerance, higher rdiff (10 Ω), SOD-323 package (1.7 × 1.3 mm) | Larger footprint and looser tolerance reduce suitability for precision biasing but improve surge margin | Select when board space allows larger package and ±5 % regulation is acceptable for cost-sensitive designs |
| MMSZ4V3ET1G | 4.3 V ±5 %, rdiff = 10 Ω, SOD-123 package (3.7 × 1.6 mm), Ptot = 500 mW | Higher power rating supports higher bias currents but sacrifices miniaturization and tight tolerance | Choose for higher-current reference needs (>10 mA) where PCB real estate is not constrained |
Compared with BZX584-C4V3 and MMSZ4V3ET1G, MM5Z4V3T5GF offers superior voltage accuracy (±2 % vs. ±5 %) and smallest footprint (SOD523), making it optimal for high-density, precision-regulated circuits - though its lower total power rating requires careful thermal layout.
Availability
MM5Z4V3T5GF is available at Aetrix Electronics and suitable for portable sensor biasing, USB port overvoltage protection, and low-power microcontroller reset circuits requiring stable component supply with guaranteed traceability and lifecycle continuity.
Supply support for MM5Z4V3T5GF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, serving automotive, industrial, and consumer markets with energy-efficient solutions.
The MM5Z series targets cost-sensitive, space-constrained applications requiring stable voltage references - engineered for manufacturability, thermal robustness, and consistent parametric performance in mass-produced electronics.
FAQ
What is the maximum continuous reverse current the MM5Z4V3T5GF can sustain?
The MM5Z4V3T5GF is rated for a maximum forward current of 200 mA, but its continuous reverse (Zener) current is limited by power dissipation. At 25 °C ambient and 300 mW total power, the maximum sustainable Zener current is approximately 70 mA (300 mW ÷ 4.3 V). Derating is required above 25 °C per the 350 K/W junction-to-ambient thermal resistance.
How does the cathode marking appear on the MM5Z4V3T5GF package?
The cathode is identified by a single dark band located at one end of the SOD523 body - aligned with Pin 1 per the official Nexperia package outline. This marking matches the "K" designation in the pinning diagram and must be oriented toward the higher-potential node in reverse-bias configuration.
Can MM5Z4V3T5GF be used in forward conduction mode?
Yes - the device exhibits a typical forward voltage of 1.1 V at 100 mA, making it usable as a low-drop rectifier or ESD protection element in forward bias. However, its primary design intent and characterization are for reverse-bias Zener operation; forward-mode current handling is secondary and limited by thermal constraints.
Is MM5Z4V3T5GF suitable for automotive applications?
No - this part is not AEC-Q200 qualified and lacks automotive-grade screening, temperature validation beyond 150 °C junction, or extended reliability testing. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use in automotive systems requires formal qualification or selection of an automotive-grade alternative.
MM5Z4V3T5GF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- MM5Z
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
MM5Z4V3T5GF FAQ
1.How can I place an order for MM5Z4V3T5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z4V3T5GF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MM5Z4V3T5GF reliable?
The price and inventory of MM5Z4V3T5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z4V3T5GF is usually 5 days.
3.What payment methods are accepted for MM5Z4V3T5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z4V3T5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z4V3T5GF?
MM5Z4V3T5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z4V3T5GF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MM5Z4V3T5GF?
For technical support, including MM5Z4V3T5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z4V3T5GF requirements.
6.How does Aetrix verify that MM5Z4V3T5GF is sourced from the original manufacturer or authorized distributors?
All MM5Z4V3T5GF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MM5Z4V3T5GF meets industry standards.
7.What is the process for return or replacement of MM5Z4V3T5GF?
All MM5Z4V3T5GF units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z4V3T5GF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MM5Z4V3T5GF part is unused and in its original packaging.
Return procedure for MM5Z4V3T5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z4V3T5GF Tags
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