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Nexperia USA Inc. MM5Z20VT5GF
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- Part No.:
- MM5Z20VT5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
MM5Z20VT5GF.pdf
- Description:
- DIODE ZENER 20V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
MM5Z20VT5GF from Nexperia is a 20 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 14.0 Ω differential resistance at IZ = 5 mA and −14.4 to +18.0 mV/K temperature coefficient - used for precision voltage reference and overvoltage clamping in low-power analog circuits.
For engineers reviewing the MM5Z20VT5GF datasheet, MM5Z20VT5GF pinout, MM5Z20VT5GF application, or MM5Z20VT5GF equivalent, this device supports stable regulation in space-constrained consumer and industrial PCBs where tight voltage tolerance, low thermal resistance (65 K/W to solder point), and fast transient suppression are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 20.0 V (19.6–20.4 V range), optimized for low-current regulation (IZ = 5 mA) and exhibits minimal voltage drift across temperature due to its specified SZ range of −14.4 to +18.0 mV/K.
Its SOD523 package delivers ultra-compact mounting (1.25 mm × 0.85 mm footprint) with cathode-marked anisotropic thermal path - junction-to-solder-point resistance is 65 K/W, enabling effective heat transfer on FR4 PCBs with ≥35 mm² copper area at the cathode tab.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19.6 V to 20.4 V at IZ = 5 mA - defines precise clamping threshold for 20 V rail protection |
| Differential Resistance (rdiff) | 14.0 Ω max at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets continuous operating limit on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs square wave - enables robust ESD/surge transient suppression |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - confirms low-loss conduction in forward-biased protection paths |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in extended industrial ambient environments |
| Thermal Resistance (Rth(j-sp)) | 65 K/W - quantifies thermal coupling efficiency to PCB solder point for thermal design |
Pinout & Package
SOD523 (SC-79) ultra-small surface-mount 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 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables accurate 20 V reference without post-production trimming in cost-sensitive designs |
| Low rdiff (14.0 Ω) | Maintains regulation stability under dynamic load changes typical in sensor biasing circuits |
| Ultra-small SOD523 footprint | Reduces board area by >50 % vs. SOD-123, critical for wearables and compact IoT modules |
| 65 K/W Rth(j-sp) | Allows direct thermal coupling to PCB copper, eliminating need for thermal vias in most applications |
| 40 W surge rating | Withstands IEC 61000-4-2 Level 4 ESD events (±15 kV air, ±8 kV contact) without degradation |
Applications
| USB Port Overvoltage Protection | ADC Reference Stabilization |
|---|---|
|
Use Scenario: Clamping transient spikes on USB VBUS line during hot-plug or ESD events. IC Role / Device Role / Timing Role: Zener diode placed between VBUS and GND to clamp voltage above 20 V. Use Value: Prevents damage to downstream USB controller ICs by limiting excursion to ≤20.4 V with <100 ns response. |
Use Scenario: Providing stable 20 V reference for 16-bit SAR ADC biasing in portable instrumentation. IC Role / Device Role / Timing Role: Low-noise Zener source feeding precision op-amp buffer stage. Use Value: Achieves <0.1 % full-scale error contribution due to ±2 % VZ tolerance and 14 Ω rdiff. |
| Low-Power Sensor Biasing | Microcontroller Reset Circuit |
|
Use Scenario: Supplying regulated bias current to MEMS pressure sensor elements in battery-powered nodes. IC Role / Device Role / Timing Role: Reverse-biased Zener establishes fixed current sink via series resistor. Use Value: Delivers stable 50 µA bias over −40 °C to +85 °C using temperature-compensated VZ profile. |
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU during brown-out conditions. IC Role / Device Role / Timing Role: Zener-based voltage monitor triggering external reset IC when supply drops below 19.6 V. Use Value: Ensures deterministic reset assertion with 0.4 V hysteresis margin against supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C20 | Same 20 V nominal, ±5 % tolerance, 350 mW Ptot, SOD-523 package | Higher voltage tolerance reduces accuracy in precision references but improves yield in high-volume consumer goods | Select when cost sensitivity outweighs 20 mV/°C tighter tempco requirement |
| MMSZ5248B | 20 V nominal, ±5 %, 500 mW Ptot, SOD-123 package (2.7 × 1.7 mm) | Larger footprint increases board area but enables higher continuous power handling | Choose for designs requiring >300 mW steady-state dissipation or legacy footprint compatibility |
Compared with BZX584C20 and MMSZ5248B, MM5Z20VT5GF offers superior voltage accuracy and thermal performance in minimal area - optimal for next-gen compact electronics where regulation precision and space constraints dominate.
Availability
MM5Z20VT5GF is available at Aetrix Electronics and suitable for USB protection, ADC reference stabilization, low-power sensor biasing, and microcontroller reset circuits requiring stable component supply with guaranteed long-term sourcing.
Supply support for MM5Z20VT5GF 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.
MM5Z20VT5GF belongs to the MM5Z series of general-purpose Zener diodes engineered for space-constrained voltage regulation and transient suppression in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous reverse current (IZ) this Zener can handle at 25 °C?
The MM5Z20VT5GF is characterized at IZ = 5 mA for specification compliance, but its absolute maximum limiting value for forward current is 200 mA. Continuous reverse current must be limited by external series resistance to ensure power dissipation stays within 300 mW - at 20 V, this corresponds to ≤15 mA average IZ on FR4 with 35 mm² copper.
Does this part have automotive qualification?
No. MM5Z20VT5GF is not AEC-Q200 qualified and is intended for industrial and consumer applications only. Nexperia explicitly states that non-automotive qualified products are unsuitable for safety-critical or automotive use, and no testing or warranty applies to such deployments.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
At IZ = 5 mA, the temperature coefficient ranges from −14.4 to +18.0 mV/K. Over a 165 °C span, this produces up to ±2.97 V drift - however, actual drift is nonlinear and minimized near room temperature; for narrow-range applications (e.g., 0–70 °C), drift remains under ±0.3 V.
Can this Zener be used in parallel for higher power handling?
No. Zener diodes exhibit manufacturing variations in VZ and rdiff, causing current imbalance when paralleled. Even with matched units, thermal runaway risk exists due to positive temperature coefficient behavior above ~5 V - external current-sharing resistors or dedicated regulators are required instead.
MM5Z20VT5GF 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):
- 20 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 14 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
MM5Z20VT5GF FAQ
1.How can I place an order for MM5Z20VT5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for MM5Z20VT5GF 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 MM5Z20VT5GF reliable?
The price and inventory of MM5Z20VT5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM5Z20VT5GF is usually 5 days.
3.What payment methods are accepted for MM5Z20VT5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM5Z20VT5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM5Z20VT5GF?
MM5Z20VT5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM5Z20VT5GF 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 MM5Z20VT5GF?
For technical support, including MM5Z20VT5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM5Z20VT5GF requirements.
6.How does Aetrix verify that MM5Z20VT5GF is sourced from the original manufacturer or authorized distributors?
All MM5Z20VT5GF 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 MM5Z20VT5GF meets industry standards.
7.What is the process for return or replacement of MM5Z20VT5GF?
All MM5Z20VT5GF units undergo pre-shipment inspection (PSI). If there is an issue with MM5Z20VT5GF, 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 MM5Z20VT5GF part is unused and in its original packaging.
Return procedure for MM5Z20VT5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM5Z20VT5GF Tags
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