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Nexperia USA Inc. MM5Z3V3T5GF
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- Part No.:
- MM5Z3V3T5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z3V3T5GF.pdf
- Description:
- DIODE ZENER 3.3V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,088
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Product details
Overview
MM5Z3V3T5GF from Nexperia is a 3.3 V ±2 % tolerance Zener diode in SOD523 (SC-79) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 5.0 Ω differential resistance at IZ = 5 mA and −3.5 to 0 mV/K temperature coefficient. It provides precision voltage regulation in space-constrained low-power circuits such as USB port protection and microcontroller reset supervision.
For engineers reviewing the MM5Z3V3T5GF datasheet, MM5Z3V3T5GF pinout, MM5Z3V3T5GF application, or MM5Z3V3T5GF equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (Rth(j-a) = 350 K/W), cathode-anode polarity marking, and SOD523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable 3.3 V output across load variations by conducting reverse current above its breakdown threshold. Its low 5.0 Ω differential resistance ensures minimal voltage deviation under dynamic current changes from 1 mA to 5 mA.
The SOD523 package enables surface-mount integration with minimal board area (1.25 mm × 0.85 mm), while the −3.5 to 0 mV/K temperature coefficient guarantees predictable drift over −55 °C to +150 °C ambient range - critical for industrial sensor front-ends and battery-powered wearables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.23 V to 3.37 V at IZ = 5 mA - defines tight regulation window for 3.3 V rail stabilization |
| Tolerance | ±2 % - enables accurate reference generation without post-production trimming |
| Differential Resistance (rdiff) | 5.0 Ω max at IZ = 5 mA - limits output voltage shift to ≤25 mV per 5 mA load change |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 PCB with 35 mm² copper - sets maximum continuous DC bias capability |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W at tp = 100 µs - supports transient surge suppression in ESD-coupled interfaces |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - defines forward conduction loss during polarity-reversal fault conditions |
| Junction Temperature (Tj) | 150 °C max - determines thermal derating curve for operation above 25 °C ambient |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead plastic package: 1.25 mm × 0.85 mm body, 0.65 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during regulation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes shunt path for excess current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SOD523 footprint | Enables placement in <1.1 mm² PCB area - ideal for wearable sensors and miniaturized IoT modules |
| ±2 % Zener voltage tolerance | Eliminates need for external calibration in 3.3 V reference designs for ADCs and comparators |
| Low 5.0 Ω differential resistance | Reduces output voltage variation to <15 mV across 1–5 mA operating range - improves analog signal integrity |
| −3.5 to 0 mV/K temperature coefficient | Minimizes drift to <±10 mV over −40 °C to +85 °C - suitable for unheated industrial enclosures |
| 40 W non-repetitive surge rating | Withstands IEC 61000-4-2 Level 4 ESD pulses (±15 kV air, ±8 kV contact) without degradation |
Applications
| USB Port Overvoltage Clamp | Microcontroller Reset Supervisor |
|---|---|
|
Use Scenario: Clamps transient voltages on USB VBUS line during hot-plug or cable coupling events. IC Role / Device Role / Timing Role: Shunt regulator clamping excess energy to ground before it reaches USB PHY IC. Use Value: Limits VBUS overshoot to ≤3.6 V using 3.3 V Zener knee, preventing damage to 3.3 V-tolerant USB transceivers. |
Use Scenario: Generates clean, temperature-stable reset signal for ARM Cortex-M0+ microcontrollers during power-up. IC Role / Device Role / Timing Role: Provides precise 3.3 V reference to RC-based reset timing circuit. Use Value: ±2 % VZ tolerance ensures reset assertion within 2.9 V–3.4 V window across temperature, meeting MCU spec. |
| Industrial Sensor Signal Conditioning | Low-Power Battery Monitor Reference |
|
Use Scenario: Stabilizes excitation voltage for 3.3 V bridge-based pressure sensors in factory automation nodes. IC Role / Device Role / Timing Role: Acts as passive voltage reference for Wheatstone bridge biasing network. Use Value: 5.0 Ω rdiff maintains <±5 mV regulation error despite 200 µA sensor bias current fluctuations. |
Use Scenario: Supplies stable reference to comparator in lithium coin-cell voltage monitor for medical patches. IC Role / Device Role / Timing Role: Defines trip point for low-battery alert at 2.8 V via resistor divider from 3.3 V Zener. Use Value: −3.5 to 0 mV/K TC ensures alert threshold shifts <±8 mV over −20 °C to +60 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C3V3 | Same 3.3 V ±5 % tolerance, SOD523 package, but higher rdiff = 90 Ω and Ptot = 350 mW | Less stable regulation under varying load; better suited for coarse clamping than precision reference | Select when cost priority outweighs voltage stability; avoid in ADC reference paths |
| MMSZ4685T1G | 3.3 V ±5 %, SOD-123 package (2.7 mm × 1.6 mm), rdiff = 15 Ω, Ptot = 500 mW | Larger footprint and higher power handling, but looser tolerance and inferior thermal resistance (Rth(j-a) = 450 K/W) | Choose only if board layout allows larger package and higher power margin is required |
Compared with BZX584-C3V3 and MMSZ4685T1G, MM5Z3V3T5GF delivers tighter voltage control (±2 % vs. ±5 %), lower impedance regulation (5.0 Ω vs. ≥15 Ω), and superior thermal performance in ultra-dense layouts - making it optimal for precision 3.3 V reference and ESD-critical interfaces.
Availability
MM5Z3V3T5GF is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset circuits, industrial sensor excitation, and low-power battery monitoring requiring stable component supply and consistent SOD523 footprint compliance.
Supply support for MM5Z3V3T5GF 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, with leadership in automotive-grade and industrial-standard components.
The MM5Z series targets general-purpose voltage regulation in consumer, industrial, and computing applications where miniature size, tight tolerance, and robust surge capability are essential - especially in space-constrained portable electronics.
FAQ
What is the maximum continuous reverse current for stable 3.3 V regulation?
The MM5Z3V3T5GF maintains regulation up to 95 µA reverse current at VR = 3.0 V, and achieves full 3.23–3.37 V Zener voltage at IZ = 5 mA. For stable operation, design for 1–10 mA nominal Zener current to stay within specified differential resistance and temperature coefficient bounds.
How does the SOD523 package affect thermal performance in high-density PCBs?
With Rth(j-a) = 350 K/W in free air and Rth(j-sp) = 65 K/W to solder point, the SOD523 package relies heavily on cathode-side copper area. On standard FR4 with 35 mm² Cu at the cathode tab, junction-to-ambient rise is limited to ~105 °C at 300 mW - confirming suitability for thermally constrained IoT modules.
Can MM5Z3V3T5GF replace a 3.3 V TL431-based reference in low-current applications?
No - the MM5Z3V3T5GF is a passive two-terminal Zener diode, lacking the active feedback, adjustable output, and 1 mA minimum cathode current requirement of the TL431. It serves best as a simple shunt clamp or fixed reference where ±2 % accuracy suffices and no dynamic adjustment is needed.
What is the impact of reverse voltage below 3.23 V on leakage behavior?
At VR = 3.0 V, typical reverse current is ≤95 µA; at VR = 2.5 V, it drops to <1 µA. This low sub-knee leakage (≤100 nA at 1 V) ensures minimal quiescent drain in always-on battery monitors, preserving shelf life in medical patch devices.
MM5Z3V3T5GF 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):
- 3.3 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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
MM5Z3V3T5GF FAQ
1.How can I place an order for MM5Z3V3T5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z3V3T5GF 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 MM5Z3V3T5GF reliable?
The price and inventory of MM5Z3V3T5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z3V3T5GF is usually 5 days.
3.What payment methods are accepted for MM5Z3V3T5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z3V3T5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z3V3T5GF?
MM5Z3V3T5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z3V3T5GF 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 MM5Z3V3T5GF?
For technical support, including MM5Z3V3T5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z3V3T5GF requirements.
6.How does Aetrix verify that MM5Z3V3T5GF is sourced from the original manufacturer or authorized distributors?
All MM5Z3V3T5GF 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 MM5Z3V3T5GF meets industry standards.
7.What is the process for return or replacement of MM5Z3V3T5GF?
All MM5Z3V3T5GF units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z3V3T5GF, 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 MM5Z3V3T5GF part is unused and in its original packaging.
Return procedure for MM5Z3V3T5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z3V3T5GF Tags
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