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Nexperia USA Inc. MM3Z22VT1GX
- Part No.:
- MM3Z22VT1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z22VT1GX.pdf
- Description:
- DIODE ZENER 22V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
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Product details
Overview
MM3Z22VT1GX from Nexperia is a 22 V ±5 % tolerance Zener diode in SOD323 (SC-76) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 17 Ω typical differential resistance at IZ = 5 mA and 16.4–20.0 V working voltage range. It provides precision voltage regulation in low-power analog reference and overvoltage protection circuits.
For engineers reviewing the MM3Z22VT1GX datasheet, MM3Z22VT1GX pinout, MM3Z22VT1GX application, or MM3Z22VT1GX equivalent, this page delivers verified electrical characteristics, thermal behavior, cathode/anode terminal mapping, and real-world use cases for stable 22 V reference design in space-constrained PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 22 V reference across load variations, with temperature coefficient of +16.4 mV/K at IZ = 5 mA and junction-to-ambient thermal resistance of 415 K/W on FR4 PCB. Its low 17 Ω differential resistance ensures minimal output voltage drift under dynamic current changes.
The device supports pulse operation up to 40 W (tp = 100 µs, square wave) and continuous DC operation up to 300 mW at Tamb = 25 °C. Forward voltage is ≤1.1 V at IF = 100 mA, enabling bidirectional clamping when paired with series components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 20.88 V to 23.17 V at IZ = 5 mA - defines usable regulation window for 22 V nominal reference |
| Differential Resistance rdiff | 17 Ω max at IZ = 5 mA - determines output impedance and load regulation error |
| Total Power Dissipation Ptot | 300 mW at Tamb = 25 °C on FR4 PCB - sets maximum continuous DC power handling |
| Non-repetitive Peak Reverse Power | 40 W (tp = 100 µs, square wave) - enables transient overvoltage suppression without failure |
| Forward Voltage VF | ≤1.1 V at IF = 100 mA - supports bidirectional clamping and ESD protection integration |
| Junction Temperature Range | −55 °C to +150 °C - allows operation in industrial ambient environments |
| Package | SOD323 (SC-76), 2.7 × 1.6 mm footprint - enables high-density placement on compact PCBs |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with cathode marked by bar on top surface; dimensions: 2.7 mm × 1.6 mm × 1.1 mm (L × W × H); thermal resistance Rth(j-a) = 415 K/W on single-sided FR4 PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 17 Ω max at 5 mA - minimizes output voltage variation under load current shifts |
| Wide voltage range coverage | 22 V nominal within 2.4–75 V series - simplifies BOM consolidation across multiple designs |
| Small-footprint SMD package | SOD323 (2.7 × 1.6 mm) - reduces board area vs. DO-35 or SOD123 alternatives |
| Stable temperature coefficient | +16.4 mV/K at 5 mA - enables predictable drift compensation in precision references |
| Pulse surge capability | 40 W non-repetitive peak power - absorbs short-duration transients without degradation |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Providing stable 22 V reference for ADC voltage dividers and op-amp bias networks in sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp reference node voltage. Use Value: Maintains <±1% output stability over 0–70 °C ambient with <0.5% line regulation error due to 17 Ω rdiff. |
Use Scenario: Clamping input rails against ESD or inductive kickback in industrial I/O modules. IC Role / Device Role / Timing Role: Bidirectional transient suppressor leveraging forward conduction (<1.1 V) and reverse Zener action (22 V). Use Value: Absorbs 40 W surges (100 µs) while limiting voltage excursion to ≤23.2 V, protecting downstream LDOs and microcontrollers. |
| Low-Power Voltage Monitor | LED Current Regulation |
Use Scenario: Detecting undervoltage conditions in battery-powered IoT nodes using comparator input referenced to 22 V Zener. IC Role / Device Role / Timing Role: Precision voltage threshold generator with known VZ tolerance (±5 %) and thermal drift profile. Use Value: Enables reliable trip point setting at 22 V ±1.1 V across −40 to +85 °C, supported by documented +16.4 mV/K coefficient. |
Use Scenario: Setting constant current for high-brightness LED strings in signage drivers via series Zener bias. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed voltage drop across current-sense resistor. Use Value: Delivers ±2% current accuracy at 5 mA bias, enabled by tight 20.88–23.17 V VZ window and low rdiff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B22 | Same 22 V nominal, ±5 % tolerance, but SOD323 package with higher rdiff (20 Ω vs. 17 Ω) and lower Ptot (300 mW same, but derated faster above 70 °C) | Less stable under varying load current due to higher impedance; requires tighter thermal management in high-ambient designs | Select when legacy BOM alignment is required; verify thermal margin on FR4 with >1 cm² copper pour |
| MMSZ5247B | 22 V nominal, ±5 %, but SOD123 package (3.7 × 1.6 mm); rdiff = 23 Ω; Ptot = 500 mW (higher power but larger footprint) | Higher power handling trades off PCB density; less suitable for ultra-compact wearables or modules | Prefer for designs needing >300 mW continuous dissipation where board area permits larger SOD123 layout |
Compared with BZX384-B22 and MMSZ5247B, MM3Z22VT1GX offers the lowest differential resistance in the smallest SOD323 footprint, making it optimal for space-constrained, high-stability 22 V reference designs where thermal budget is managed via standard FR4 layout.
Availability
MM3Z22VT1GX is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, low-power voltage monitor, and LED current regulation requiring stable component supply and consistent parametric performance across production lots.
Supply support for MM3Z22VT1GX 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-qualified and industrial-grade components.
The MM3Z series targets general-purpose voltage regulation in cost-sensitive, space-constrained applications, emphasizing tight tolerance, low rdiff, and robust surge capability in miniature SMD packages.
FAQ
What is the maximum continuous reverse current for stable 22 V regulation?
The MM3Z22VT1GX achieves stable regulation at IZ = 5 mA, with maximum continuous reverse current limited by its 300 mW power rating: IZ(max) ≈ 300 mW / 22 V = 13.6 mA at 25 °C ambient. Derating applies above 25 °C per Rth(j-a) = 415 K/W; at 70 °C ambient, max IZ drops to ~9.2 mA to maintain Tj ≤ 150 °C.
How does the cathode marking align with PCB layout for SOD323?
The cathode (pin 1) is identified by a visible bar marking on the top surface of the SOD323 package; on PCB footprints, this corresponds to the left pad in standard orientation (viewed from top, marking bar left, anode right). Reflow soldering land pattern per Figure 12 uses 0.6 mm × 0.5 mm pads spaced 1.35 mm center-to-center.
Can MM3Z22VT1GX be used in series for higher voltage references?
Yes - two MM3Z22VT1GX diodes in series yield ~44 V nominal regulation, but tolerance compounds (±5 % each → ±10 % total), and thermal tracking differs due to independent junctions. Differential resistance sums linearly (34 Ω), increasing output impedance; parallel use is not recommended due to mismatched VZ causing current hogging.
What is the reverse leakage current at 18 V bias?
At VR = 18 V and Tj = 25 °C, reverse leakage (IR) is ≤100 µA per Table 8, confirmed by Fig. 9 showing <1 µA at 18 V for 22 V-rated types. This low leakage ensures minimal quiescent current draw in always-on monitoring circuits.
MM3Z22VT1GX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- MM3Z
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 17 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-323
MM3Z22VT1GX FAQ
1.How can I place an order for MM3Z22VT1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z22VT1GX 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 MM3Z22VT1GX reliable?
The price and inventory of MM3Z22VT1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z22VT1GX is usually 5 days.
3.What payment methods are accepted for MM3Z22VT1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z22VT1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z22VT1GX?
MM3Z22VT1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z22VT1GX 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 MM3Z22VT1GX?
For technical support, including MM3Z22VT1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z22VT1GX requirements.
6.How does Aetrix verify that MM3Z22VT1GX is sourced from the original manufacturer or authorized distributors?
All MM3Z22VT1GX 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 MM3Z22VT1GX meets industry standards.
7.What is the process for return or replacement of MM3Z22VT1GX?
All MM3Z22VT1GX units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z22VT1GX, 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 MM3Z22VT1GX part is unused and in its original packaging.
Return procedure for MM3Z22VT1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MM3Z22VT1GX Tags
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