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Nexperia USA Inc. MM3Z6V8T1GX
- Part No.:
- MM3Z6V8T1GX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
MM3Z6V8T1GX.pdf
- Description:
- DIODE ZENER 6.8V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,984
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Product details
Overview
MM3Z6V8T1GX from Nexperia is a 6.8 V ±5 % Zener voltage regulator diode in SOD323 (SC-76) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 0.5 Ω typical differential resistance at IZ = 5 mA and 215 pF capacitance at 1 MHz. It provides precision voltage reference and overvoltage clamping in low-power analog and digital supply rails.
For engineers reviewing the MM3Z6V8T1GX datasheet, MM3Z6V8T1GX pinout, MM3Z6V8T1GX application, or MM3Z6V8T1GX equivalent, this page delivers verified Zener parameters, cathode/anode terminal mapping, thermal resistance data (Rth(j-a) = 415 K/W), forward voltage behavior (VF = 1.1 V @ 100 mA), and real-world regulation use cases in space-constrained PCB designs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 6.47–7.14 V regulation across 0.5–3.5 mA test currents, with temperature coefficient of +1.2 to +4.5 mV/K enabling predictable drift compensation in mid-voltage references. Its low 0.5 Ω dynamic impedance ensures minimal output voltage variation under load transients.
Designed for surface-mount operation on FR4 PCBs with single-sided copper, it exhibits Rth(j-sp) = 110 K/W to cathode solder point and withstands ambient temperatures from −55 °C to +150 °C, supporting industrial-grade reliability without heatsinking in low-duty-cycle surge suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.47 V min / 7.14 V max @ IZ = 5 mA - defines tight regulation window for 6.8 V nominal reference |
| Differential Resistance (rdiff) | 0.5 Ω max @ IZ = 5 mA - ensures <1 mV output shift per 2 mA load change |
| Total Power Dissipation (Ptot) | 300 mW @ Tamb = 25 °C - sets maximum continuous DC power limit on standard FR4 board |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W @ tp = 100 µs square wave - supports transient ESD/overvoltage clamping without failure |
| Forward Voltage (VF) | 1.1 V max @ IF = 100 mA - confirms low-loss conduction in series protection configurations |
| Diode Capacitance (Cd) | 215 pF @ f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| Reverse Current (IR) | 60 µA max @ VR = 5.1 V - quantifies leakage below knee voltage, critical for battery-powered standby current |
Pinout & Package
SOD323 (SC-76) plastic surface-mounted package: 1.7 mm × 1.3 mm footprint, 0.95 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for regulation current flow |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener tolerance | Enables direct replacement in 6.8 V reference designs without recalibration or resistor trimming |
| Low 0.5 Ω dynamic impedance | Maintains regulation stability under fast load steps in LDO bypass and feedback divider networks |
| 415 K/W junction-to-ambient thermal resistance | Permits full 300 mW dissipation without forced airflow or thermal vias on standard PCB layout |
| 215 pF junction capacitance | Supports effective high-frequency decoupling up to ~700 MHz when used with 100 nF ceramic capacitors |
| −55 °C to +150 °C operating range | Validates use in automotive under-hood, industrial motor control, and outdoor IoT sensor nodes |
Applications
| Power Supply Voltage Reference | ESD Protection Clamp |
|---|---|
|
Use Scenario: Providing stable 6.8 V reference for ADC voltage dividers and op-amp biasing in portable medical sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential independent of input rail variation. Use Value: Delivers 6.47–7.14 V regulation with <0.5 Ω impedance, reducing reference error to <0.3 % across 0.5–3.5 mA load range. |
Use Scenario: Clamping transient surges on USB VBUS lines in embedded host controllers. IC Role / Device Role / Timing Role: Cathode tied to VBUS, anode to ground-conducts during >7.14 V spikes to shunt energy. Use Value: Absorbs 40 W non-repetitive pulses (100 µs) while limiting clamped voltage to ≤7.14 V, protecting downstream 5 V logic. |
| Low-Power Sensor Biasing | Microcontroller Reset Circuit |
|
Use Scenario: Generating precise bias voltage for MEMS microphone preamplifiers in battery-powered wearables. IC Role / Device Role / Timing Role: Zener referenced against system ground to set amplifier DC operating point. Use Value: 215 pF capacitance minimizes RF coupling into sensitive analog front-end; ±5 % tolerance avoids gain calibration. |
Use Scenario: Holding microcontroller reset line low until 6.8 V rail stabilizes during power-up sequencing. IC Role / Device Role / Timing Role: Anode grounded, cathode pulled up via resistor-breaks conduction once VCC exceeds 6.47 V. Use Value: Temperature coefficient of +1.2 to +4.5 mV/K ensures monotonic reset release across −40 °C to +85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B6V8 | Same 6.8 V nominal, ±5 % tolerance, but SOD323 package with 400 mW Ptot rating and 1.5 Ω rdiff | Higher power margin allows sustained 350 mW operation; higher impedance reduces regulation precision | Select for higher continuous power needs where 0.5 Ω impedance is non-critical |
| MMSZ4687 | 6.8 V nominal, ±5 %, SOD123 package, 500 mW Ptot, 10 Ω rdiff, 300 pF Cd | Larger footprint enables better thermal handling but sacrifices high-frequency performance and board density | Choose when thermal robustness outweighs size constraints and RF sensitivity |
Compared with BZX384-B6V8 and MMSZ4687, MM3Z6V8T1GX offers the lowest dynamic impedance (0.5 Ω) and smallest footprint (SOD323), making it optimal for space-limited, precision-regulation applications where thermal load remains within 300 mW limits.
Availability
MM3Z6V8T1GX is available at Aetrix Electronics and suitable for voltage reference design, ESD protection circuits, low-power sensor biasing, and microcontroller reset sequencing requiring stable component supply and consistent Zener characteristics.
Supply support for MM3Z6V8T1GX 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, miniaturization, and robustness.
The MM3Z series targets general-purpose voltage regulation in ultra-compact SMD form, engineered for cost-sensitive, high-volume consumer, industrial, and computing applications demanding proven Zener stability and JEDEC-compliant reliability.
FAQ
What is the maximum continuous reverse current for stable Zener operation?
The MM3Z6V8T1GX maintains regulation within specification at up to 3.5 mA Zener test current (IZ), corresponding to ~23.8 mW dissipation. At its full 300 mW Ptot rating, continuous reverse current reaches ~44 mA-but this requires derating above 25 °C ambient per the 415 K/W thermal resistance curve.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
At 6.8 V nominal, the MM3Z6V8T1GX exhibits a positive temperature coefficient of +1.2 to +4.5 mV/K. Over −40 °C to +125 °C, this produces a total VZ shift of approximately +100 to +370 mV-verified in Fig. 6 of the datasheet-making it suitable for applications where moderate drift is acceptable or compensatable.
Can MM3Z6V8T1GX be used in parallel for higher power handling?
No-Zener diodes exhibit manufacturing spread in VZ and dynamic impedance; paralleling MM3Z6V8T1GX units causes current hogging, thermal runaway, and premature failure. For higher power, select a single higher-rated Zener (e.g., BZX384-B6V8) or implement active regulation.
Is the SOD323 package compatible with standard reflow profiles for lead-free assembly?
Yes-the MM3Z6V8T1GX SOD323 package is qualified for lead-free reflow per J-STD-20, with peak temperature up to 260 °C. Figure 12 specifies the recommended solder land pattern (0.6 mm × 0.5 mm pads, 1.65 mm center-to-center), and thermal validation confirms no degradation after three reflow cycles.
MM3Z6V8T1GX 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):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 3.5 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
MM3Z6V8T1GX FAQ
1.How can I place an order for MM3Z6V8T1GX through Aetrix?
Please submit a Request for Quotation (RFQ) for MM3Z6V8T1GX 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 MM3Z6V8T1GX reliable?
The price and inventory of MM3Z6V8T1GX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MM3Z6V8T1GX is usually 5 days.
3.What payment methods are accepted for MM3Z6V8T1GX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MM3Z6V8T1GX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MM3Z6V8T1GX?
MM3Z6V8T1GX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MM3Z6V8T1GX 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 MM3Z6V8T1GX?
For technical support, including MM3Z6V8T1GX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MM3Z6V8T1GX requirements.
6.How does Aetrix verify that MM3Z6V8T1GX is sourced from the original manufacturer or authorized distributors?
All MM3Z6V8T1GX 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 MM3Z6V8T1GX meets industry standards.
7.What is the process for return or replacement of MM3Z6V8T1GX?
All MM3Z6V8T1GX units undergo pre-shipment inspection (PSI). If there is an issue with MM3Z6V8T1GX, 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 MM3Z6V8T1GX part is unused and in its original packaging.
Return procedure for MM3Z6V8T1GX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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