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Nexperia USA Inc. PZU6.8B2A,115
- Part No.:
- PZU6.8B2A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU6.8B2A,115.pdf
- Description:
- DIODE ZENER 6.8V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
PZU6.8B2A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 6.8 V nominal working voltage at 5 mA, with 60 Ω maximum differential resistance and 20 nA reverse current at 0.5 mA, used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the PZU6.8B2A,115 datasheet, PZU6.8B2A,115 pinout, PZU6.8B2A,115 application, or PZU6.8B2A,115 equivalent, this device supports stable regulation in space-constrained designs requiring tight voltage tolerance, low leakage, and fast transient response per AN90031.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics optimized for low-current regulation (IZ = 5 mA), delivering stable 6.8 V reference under ambient temperatures from −55 °C to +150 °C and junction temperature up to 150 °C.
Its thermal resistance from junction to solder point is 55 K/W, enabling reliable power dissipation up to 320 mW on FR4 PCBs with standard footprint, while non-repetitive surge capability reaches 40 W for 100 µs square-wave pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.8 V at IZ = 5 mA - precise reference for biasing, feedback, or clamping in analog signal chains |
| Voltage Tolerance | ±2 % (B2 series) - ensures consistent regulation across production batches without post-assembly trimming |
| Differential Resistance | ≤60 Ω at IZ = 5 mA - minimizes output voltage shift under load variation in feedback networks |
| Reverse Current | 20 nA at VR = 0.5 mA - enables ultra-low standby power in battery-backed or energy-harvesting systems |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C - supports continuous operation on standard FR4 PCB without heatsinking |
| Non-repetitive Peak Power | 40 W for tp = 100 µs - provides robust transient overvoltage suppression in ESD-prone interfaces |
| Package | SOD323 (SC-76), 1.7 mm × 1.25 mm × 0.95 mm - compatible with high-density automated SMT assembly |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with cathode marked by bar; body dimensions 1.7 mm × 1.25 mm × 0.95 mm; 1.3 mm lead pitch; designed for reflow or wave soldering per Figures 10–11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Intentional minor leakage rise | Optimizes fast switching and noise reduction per AN90031 - improves transient response in dynamic regulation loops |
| Hard breakdown knee | Sharp Zener onset at 6.8 V - eliminates ambiguity in threshold detection for protection circuits |
| Low dynamic impedance | 60 Ω at 5 mA - maintains <1 % output deviation across ±1 mA load changes in reference supplies |
| Thermal stability | Temperature coefficient of +3.4 mV/K - predictable drift behavior enables compensation in precision instrumentation |
| Small-outline packaging | SOD323 footprint - fits 0805-equivalent board area, supporting miniaturized DC-DC feedback and sensor biasing |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 6.8 V reference for op-amp biasing and ADC voltage references in industrial sensor nodes. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential independent of supply ripple. Use Value: ±2 % tolerance and 60 Ω dynamic resistance ensure reference accuracy remains within 0.14 V over full operating current range. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced voltage spikes in USB peripheral interfaces. IC Role / Device Role / Timing Role: Fast-clamping element shunting transients above 6.8 V to ground before damage occurs. Use Value: 40 W non-repetitive peak power rating absorbs 100 µs surges without degradation, per IEC 61000-4-2 Level 4 compliance paths. |
| Current Source Bias | Signal Level Shifting |
Use Scenario: Setting bias current for low-noise JFET amplifiers in audio front-end circuits. IC Role / Device Role / Timing Role: Regulator establishing fixed voltage drop across series resistor to generate stable bias current. Use Value: 20 nA reverse leakage prevents loading of high-impedance gate nodes, preserving amplifier input impedance >1012 Ω. |
Use Scenario: Translating 3.3 V logic signals to 5 V domains in mixed-voltage FPGA I/O banks. IC Role / Device Role / Timing Role: Clamping diode limiting high-side swing to 6.8 V while allowing full low-side swing to ground. Use Value: Hard knee and low capacitance (<500 pF) preserve signal edge integrity up to 10 MHz without distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B6V8,115 | Same SOD323 package and 6.8 V/±2 % rating, but higher typical rdif (80 Ω) and 100 nA IR at 0.5 mA | Less suitable for ultra-low-leakage biasing; acceptable for general-purpose clamping where leakage <100 nA is tolerable | Select when cost sensitivity outweighs leakage or dynamic impedance requirements |
| MMSZ5235B-TP | SOD-123 package (larger), same 6.8 V/±5 %, rdif = 10 Ω typical but IR = 1 µA at 1 V - significantly higher leakage | Compatible with legacy footprints but unsuitable for battery-critical or high-impedance nodes due to µA-level leakage | Choose only if board layout mandates SOD-123 or ±5 % tolerance is acceptable |
Compared with BZX384-B6V8,115 and MMSZ5235B-TP, PZU6.8B2A,115 delivers superior leakage performance (20 nA vs. ≥100 nA) and tighter tolerance (±2 % vs. ±5 %), making it optimal for precision analog and low-power embedded regulation where reference stability and quiescent current are critical.
Availability
PZU6.8B2A,115 is available at Aetrix Electronics and suitable for industrial sensor calibration, portable medical device power management, and automotive infotainment subsystems requiring stable component supply and long-term obsolescence mitigation.
Supply support for PZU6.8B2A,115 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 manufacturing rooted in process technology leadership and automotive-grade quality systems.
PZUxBA series belongs to Nexperia's general-purpose Zener regulator product line, engineered specifically for space-constrained, low-power applications demanding tight voltage tolerance, low leakage, and robust surge immunity in consumer, industrial, and communications equipment.
FAQ
What is the maximum continuous reverse current this Zener can handle?
The PZU6.8B2A,115 supports a maximum continuous forward current of 200 mA, but its Zener operation is defined by reverse current. At 6.8 V, the recommended test current is 5 mA; sustained reverse current beyond 50 mA exceeds the 320 mW power limit and risks thermal runaway without active cooling or derating.
Does this part meet JEDEC moisture sensitivity level (MSL) requirements?
Yes - the SOD323 package of PZU6.8B2A,115 is rated MSL-1 (unlimited floor life), meaning it may be stored indefinitely at ≤30 °C/60 % RH and placed directly into reflow without baking, per Nexperia's qualification per J-STD-020.
Can this Zener be used in series for higher voltage references?
Yes - multiple PZU6.8B2A,115 units may be cascaded in series to achieve higher reference voltages (e.g., two in series yield ~13.6 V), but total tolerance accumulates (±2.8 %), and thermal coupling must be managed to avoid mismatched drift; parallel use is not recommended due to current-sharing instability.
Is there a recommended PCB footprint for thermal performance?
For optimal thermal performance, use the reflow footprint shown in Figure 10: 0.6 mm × 0.5 mm solder lands with 0.5 mm spacing, and extend the cathode pad to ≥1 cm² copper area to reduce Rth(j-sp) from 55 K/W toward the 255 K/W junction-to-ambient value specified for larger pads.
PZU6.8B2A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 320 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:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PZU6.8B2A,115 FAQ
1.How can I place an order for PZU6.8B2A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU6.8B2A,115 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 PZU6.8B2A,115 reliable?
The price and inventory of PZU6.8B2A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU6.8B2A,115 is usually 5 days.
3.What payment methods are accepted for PZU6.8B2A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU6.8B2A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU6.8B2A,115?
PZU6.8B2A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU6.8B2A,115 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 PZU6.8B2A,115?
For technical support, including PZU6.8B2A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU6.8B2A,115 requirements.
6.How does Aetrix verify that PZU6.8B2A,115 is sourced from the original manufacturer or authorized distributors?
All PZU6.8B2A,115 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 PZU6.8B2A,115 meets industry standards.
7.What is the process for return or replacement of PZU6.8B2A,115?
All PZU6.8B2A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU6.8B2A,115, 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 PZU6.8B2A,115 part is unused and in its original packaging.
Return procedure for PZU6.8B2A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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