My Inquiry
My Account
Nexperia USA Inc. PZU6.8B1A,115
- Part No.:
- PZU6.8B1A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU6.8B1A,115.pdf
- Description:
- DIODE ZENER 6.8V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,593
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PZU6.8B1A,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. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the PZU6.8B1A,115 datasheet, PZU6.8B1A,115 pinout, PZU6.8B1A,115 application, or PZU6.8B1A,115 equivalent, this device is selected for precision voltage clamping where tight tolerance, low dynamic impedance, and hard breakdown knee are required in space-constrained SMT designs.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal 6.8 V regulation voltage at IZ = 5 mA, exhibiting a temperature coefficient of +3.4 mV/K and typical junction-to-ambient thermal resistance of 390 K/W on FR4 PCB. Its low leakage (20 nA at 0.5 mA) and sharp knee enable accurate voltage referencing without significant current-dependent drift.
The device uses silicon planar technology with metallization optimized for stable Zener characteristics across -55 °C to +150 °C ambient range. Its SOD323 footprint supports high-density layout while maintaining thermal performance under pulsed surge conditions up to 40 W (100 µs square wave).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 6.8 V at IZ = 5 mA - precise regulation point for feedback and clamp circuits |
| Tolerance | ±2 % (B1 series) - tighter than standard ±5 % Zeners for improved system accuracy |
| rdif | ≤60 Ω at IZ = 5 mA - low dynamic impedance ensures minimal voltage shift under load variation |
| IR | ≤20 nA at VR = 0.5 × VZ - ultra-low leakage preserves battery life and signal integrity |
| Ptot | 320 mW at Tamb ≤ 25 °C - sufficient for low-power biasing and sensing applications |
| SZ | +3.4 mV/K - positive tempco enables predictable drift compensation in reference networks |
| Package | SOD323 (SC-76), 1.7 mm × 1.25 mm × 0.95 mm - compact SMT form factor for high-density PCBs |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package with cathode marked by bar; body dimensions 1.7 mm × 1.25 mm × 0.95 mm, 1.3 mm lead pitch, and tin-plated terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct orientation during placement |
| 2 | Anode | Ground or return path; reverse-bias connection enables Zener conduction at VZ |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition minimizes voltage uncertainty near regulation point |
| Very low leakage current | 20 nA at 0.5 mA reverse bias reduces standby power loss in battery-powered systems |
| Optimized thermal resistance | Rth(j-a) = 390 K/W enables reliable operation up to 150 °C junction temperature |
| Non-repetitive surge capability | Withstands 40 W pulses (100 µs) for transient overvoltage suppression without degradation |
| Standard SMD footprint | SOD323 outline matches IPC-7351B generic land pattern for automated assembly compatibility |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated DC-DC converters using optocoupler feedback. IC Role / Device Role / Timing Role: Provides stable 6.8 V reference to TL431 shunt regulator input, setting precise output setpoint. Use Value: ±2 % tolerance ensures output accuracy within ±0.5 % over line/load/temperature, reducing need for post-production trimming. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced transients on industrial sensor interfaces. IC Role / Device Role / Timing Role: Clamps voltage spikes above 6.8 V to ground, diverting surge current away from sensitive logic inputs. Use Value: 60 Ω rdif limits clamping voltage overshoot to <7.2 V during 1 kV HBM events, preserving I/O integrity. |
| Reference Voltage Source | Current-Limited Bias Generator |
|
Use Scenario: Generating precision bias for op-amp comparators in battery monitoring circuits. IC Role / Device Role / Timing Role: Supplies stable 6.8 V reference to comparator non-inverting input for cell voltage threshold detection. Use Value: +3.4 mV/K tempco allows predictable offset calibration across -40 °C to +85 °C operating range. |
Use Scenario: Providing fixed bias current to phototransistor amplifiers in optical isolation stages. IC Role / Device Role / Timing Role: Acts as constant-current sink via series resistor, leveraging Zener voltage stability to fix IE. Use Value: Low 20 nA leakage ensures bias current remains stable down to 1 µA levels, improving amplifier SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B6V8,115 | Same SOD323 package and 6.8 V rating, but ±5 % tolerance (B series) and higher rdif (80 Ω) | Acceptable where ±5 % regulation accuracy suffices and cost is prioritized over precision | Select when budget constraints outweigh need for tight tempco and low dynamic impedance |
| MMSZ5235B-7-F | DO-213AC package (SOD-123), ±5 % tolerance, 100 Ω rdif, 100 nA IR at 0.5 mA | Larger footprint and higher leakage limit use in ultra-low-power or high-density layouts | Choose only if legacy DO-213AC footprint compatibility is mandatory and thermal derating is acceptable |
Compared with BZX384-B6V8,115 and MMSZ5235B-7-F, PZU6.8B1A,115 offers superior regulation accuracy, lower dynamic impedance, and significantly reduced leakage-making it optimal for precision analog references and space-constrained portable electronics where long-term stability matters.
Availability
PZU6.8B1A,115 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and precision reference voltage generation requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for PZU6.8B1A,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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PZUxBA series targets general-purpose Zener regulation in miniaturized SMT designs, emphasizing tight tolerance, low leakage, and robust surge handling for cost-sensitive yet performance-aware applications.
FAQ
What is the maximum continuous reverse current the PZU6.8B1A,115 can handle?
The device is rated for a maximum forward current of 200 mA, but as a Zener diode, its continuous reverse current is limited by power dissipation. At 25 °C ambient, with Ptot = 320 mW and VZ = 6.8 V, the maximum steady-state reverse current is approximately 47 mA - beyond which thermal derating or heatsinking becomes necessary.
Does the PZU6.8B1A,115 require external series resistance in typical Zener applications?
Yes - a current-limiting resistor is mandatory to set the operating Zener current (e.g., 5 mA for spec compliance) and prevent thermal runaway. For a 12 V supply regulating to 6.8 V, a 1.0 kΩ resistor establishes ~5.2 mA, aligning with datasheet test conditions and ensuring stable regulation and low rdif.
How does the +3.4 mV/K temperature coefficient affect circuit performance?
This positive coefficient means output voltage increases by ~3.4 mV per °C rise in junction temperature. In a 6.8 V reference, that's ~0.05 %/°C drift - manageable in room-temperature applications but requires compensation (e.g., matched NTC thermistor or complementary diode) in wide-temperature-range precision systems.
Can PZU6.8B1A,115 be used in place of older PZM6.8B1A variants?
No - PZM devices use SOT23 packaging and differ in thermal performance, pinout, and surge ratings. While both regulate at 6.8 V, PZU6.8B1A,115's SOD323 footprint, 390 K/W Rth(j-a), and 40 W pulse rating are not interchangeable with PZM6.8B1A's SOT23 layout and thermal profile without board redesign and validation.
PZU6.8B1A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
PZU6.8B1A,115 FAQ
1.How can I place an order for PZU6.8B1A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU6.8B1A,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 PZU6.8B1A,115 reliable?
The price and inventory of PZU6.8B1A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU6.8B1A,115 is usually 5 days.
3.What payment methods are accepted for PZU6.8B1A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU6.8B1A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU6.8B1A,115?
PZU6.8B1A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU6.8B1A,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 PZU6.8B1A,115?
For technical support, including PZU6.8B1A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU6.8B1A,115 requirements.
6.How does Aetrix verify that PZU6.8B1A,115 is sourced from the original manufacturer or authorized distributors?
All PZU6.8B1A,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 PZU6.8B1A,115 meets industry standards.
7.What is the process for return or replacement of PZU6.8B1A,115?
All PZU6.8B1A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU6.8B1A,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 PZU6.8B1A,115 part is unused and in its original packaging.
Return procedure for PZU6.8B1A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU6.8B1A,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
