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Nexperia USA Inc. SZMM5Z6V8T5GF
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- Part No.:
- SZMM5Z6V8T5GF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z6V8T5GF.pdf
- Description:
- DIODE ZENER 6.8V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
SZMM5Z6V8T5GF from Nexperia is a 6.8 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 2.0 Ω differential resistance at IZ = 5 mA and AEC-Q101 qualification for automotive voltage regulation.
For engineers reviewing the SZMM5Z6V8T5GF datasheet, SZMM5Z6V8T5GF pinout, SZMM5Z6V8T5GF application, or SZMM5Z6V8T5GF equivalent, this device serves as a precision shunt reference in low-power biasing, overvoltage clamping, and ESD-protected signal conditioning circuits where ultra-small footprint and thermal reliability are critical.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 6.66–6.94 V regulation across 1–5 mA test currents, with low temperature coefficient (+1.2 to +4.5 mV/K) and minimal capacitance (215 pF at 0 V, f = 1 MHz). Its cathode-anode polarity is marked by a bar on the SOD523 body.
Designed for surface-mount reflow assembly, it delivers 65 K/W junction-to-solder-point thermal resistance when mounted on FR4 with 35 mm² copper area at the cathode tab, enabling reliable operation up to 150 °C junction temperature under transient surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.66 V min to 6.94 V max at IZ = 5 mA - defines tight regulation window for precision reference applications |
| Differential Resistance (rdiff) | 2.0 Ω max at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤ 15 µA at VR = 4.5 V - guarantees low leakage in standby or high-impedance sensing nodes |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets continuous DC power limit for thermal design on standard PCBs |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - supports transient surge suppression without failure |
| Thermal Resistance (Rth(j-sp)) | 65 K/W - enables direct thermal path from junction to solder point for improved pulse handling |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SOD523 (SC-79), ultra-small flat-lead surface-mount plastic package (1.25 × 0.85 × 0.65 mm), cathode identified by marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; carries reverse current during Zener conduction; marked by bar on package |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables accurate voltage setting without post-assembly trimming in cost-sensitive consumer and automotive modules |
| Low 2.0 Ω differential resistance | Maintains regulation stability across ±1 mA load changes in feedback networks and reference buffers |
| AEC-Q101 qualification | Validates suitability for under-hood automotive electronics including body control modules and sensor interfaces |
| 215 pF diode capacitance at 0 V | Minimizes high-frequency signal distortion in ESD-clamped data lines (e.g., LIN bus, I²C pull-ups) |
| 350 K/W junction-to-ambient Rth | Supports natural convection cooling in space-constrained designs without heatsinking |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stable 6.8 V reference for microcontroller ADC reference and CAN transceiver bias in BCM PCBs. IC Role / Device Role / Timing Role: Shunt voltage regulator providing low-drift reference for analog subsystems. Use Value: Tight ±2 % tolerance and AEC-Q101 qualification ensure consistent performance across −40 °C to +125 °C ambient. |
Use Scenario: Clamping and biasing of 4–20 mA loop transmitter outputs in factory automation sensors. IC Role / Device Role / Timing Role: Reverse-biased Zener protecting op-amp inputs from overvoltage transients. Use Value: 40 W non-repetitive peak power rating absorbs 100 µs surges without degradation in harsh EMI environments. |
| USB-C Port Protection Circuit | Smart Home Wireless Node Power Rail |
Use Scenario: Overvoltage clamp on VBUS detection line in USB-C receptacle designs. IC Role / Device Role / Timing Role: Fast-response shunt limiter activated during hot-plug events. Use Value: 215 pF capacitance avoids signal integrity loss on high-speed CC line while clamping to safe levels. |
Use Scenario: Low-power voltage reference for battery-monitoring ICs in Zigbee/Z-Wave edge nodes. IC Role / Device Role / Timing Role: Precision Zener supplying stable bias to voltage-divider networks. Use Value: 300 mW Ptot and 2.0 Ω rdiff enable <10 µA quiescent current draw with <10 mV regulation error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C6V8 | Same 6.8 V nominal, ±5 % tolerance, SOD523 package, but only 200 mW Ptot and no AEC-Q101 qualification | Acceptable for commercial-grade consumer products; insufficient for automotive temperature or reliability requirements | Select when cost is primary and AEC-Q101 compliance is not required |
| MMSZ5236B | 6.8 V nominal, ±5 % tolerance, SOD-123 package (larger), 500 mW Ptot, no AEC-Q101 | Higher power handling but 2× larger footprint; unsuitable for ultra-dense layouts requiring SOD523 | Select when board space allows larger package and higher continuous power is needed |
Compared with BZX584C6V8 and MMSZ5236B, SZMM5Z6V8T5GF uniquely combines automotive qualification, ±2 % tolerance, and ultra-compact SOD523 packaging-making it optimal for space-constrained, high-reliability applications where precision and regulatory compliance are mandatory.
Availability
SZMM5Z6V8T5GF is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C protection circuits, and smart home wireless node power rails requiring stable component supply and long-term lifecycle support.
Supply support for SZMM5Z6V8T5GF 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, high-reliability logic, discrete, and MOSFET devices, with leadership in automotive-qualified components and energy-efficient solutions.
SZMM5Z series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient protection in automotive and industrial surface-mount applications demanding miniaturization and robustness.
FAQ
What is the maximum continuous reverse current this Zener can handle at 6.8 V?
At VZ = 6.8 V and Tamb = 25 °C, the maximum continuous reverse current is derived from Ptot = 300 mW: IZ(max) = 300 mW / 6.8 V ≈ 44 mA. However, derating applies above 25 °C per the 350 K/W Rth(j-a); actual usable current drops to ~25 mA at 85 °C ambient.
How does the cathode marking align with the SOD523 package outline?
The cathode (pin 1) is indicated by a visible bar on the top surface of the SOD523 package, positioned adjacent to the shorter end of the rectangular body. Per Figure 9 in the datasheet, the bar aligns with terminal "K" and corresponds to the leftmost pad in the recommended reflow footprint (Figure 10).
Is this Zener suitable for use in a 1 MHz signal path?
Yes - its 215 pF capacitance at 0 V (f = 1 MHz) introduces minimal loading in low-current signal paths. When used as a DC bias reference or low-duty-cycle clamp, it maintains signal integrity; however, for AC-coupled high-speed lines, parallel impedance must be evaluated against source impedance to avoid attenuation.
Does the AEC-Q101 qualification cover extended temperature operation?
Yes - AEC-Q101 testing includes temperature cycling (−40 °C to +150 °C), high-temperature reverse bias (1000 hrs at 150 °C), and unbiased high-humidity storage. The device is rated for continuous operation from −55 °C to +150 °C ambient, with full electrical specs guaranteed from −40 °C to +125 °C.
SZMM5Z6V8T5GF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z6V8T5GF FAQ
1.How can I place an order for SZMM5Z6V8T5GF through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z6V8T5GF 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 SZMM5Z6V8T5GF reliable?
The price and inventory of SZMM5Z6V8T5GF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z6V8T5GF is usually 5 days.
3.What payment methods are accepted for SZMM5Z6V8T5GF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z6V8T5GF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z6V8T5GF?
SZMM5Z6V8T5GF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z6V8T5GF 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 SZMM5Z6V8T5GF?
For technical support, including SZMM5Z6V8T5GF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z6V8T5GF requirements.
6.How does Aetrix verify that SZMM5Z6V8T5GF is sourced from the original manufacturer or authorized distributors?
All SZMM5Z6V8T5GF 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 SZMM5Z6V8T5GF meets industry standards.
7.What is the process for return or replacement of SZMM5Z6V8T5GF?
All SZMM5Z6V8T5GF units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z6V8T5GF, 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 SZMM5Z6V8T5GF part is unused and in its original packaging.
Return procedure for SZMM5Z6V8T5GF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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