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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. PDZ6.8B,115

Name: PDZ6.8B,115
Brand: Nexperia USA Inc.
SKU: PDZ6.8B,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDZ6.8B,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: PDZ6.8B,115.pdf

Description:: DIODE ZENER 6.8V 400MW SOD323

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Inventory:74,705

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Product details

Overview

PDZ6.8B,115 from Nexperia is a single Zener diode designed for low-power voltage regulation in surface-mounted applications. It delivers a nominal working voltage of 6.8 V at 5 mA, with ±2 % tolerance, 60 Ω maximum differential resistance at 5 mA, and 0.5 μA reverse current at 4.5 V - deployed in compact SOD323 (SC-76) packages for space-constrained power rail clamping and reference circuits.

For engineers reviewing the PDZ6.8B,115 datasheet, PDZ6.8B,115 pinout, PDZ6.8B,115 application, or PDZ6.8B,115 equivalent, key selection criteria include Zener voltage accuracy, low leakage at sub-breakdown bias, thermal resistance to solder point (130 K/W), and compatibility with FR4 PCB reflow profiles per JEDEC J-STD-020.

Technical Context

This device operates as a two-terminal voltage reference by exploiting controlled reverse breakdown in silicon PN junctions. Its hard breakdown knee and low dynamic impedance (≤60 Ω at I_Z = 5 mA) ensure stable regulation under varying load currents up to 200 mA forward and 5.5 A non-repetitive surge.

Thermal performance is defined relative to solder point (R_th(j-sp) = 130 K/W) and ambient (R_th(j-a) = 340 K/W) on standard FR4 PCBs. Temperature coefficient is +3.4 mV/K at 5 mA, enabling predictable drift compensation in mid-voltage reference designs.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	6.65 V to 6.93 V at I_Z = 5 mA - ensures tight regulation window for 6.8 V nominal rails
Differential Resistance (r_dif)	≤60 Ω at I_Z = 5 mA - minimizes output voltage shift under load transients
Reverse Current (I_R)	≤0.5 μA at V_R = 4.5 V - enables low-quiescent monitoring in battery-backed circuits
Power Dissipation (P_tot)	400 mW at T_amb ≤ 25 °C - supports continuous operation in thermally constrained layouts
Forward Voltage (V_F)	0.9 V at I_F = 10 mA - defines conduction loss when used bidirectionally or in clamp configurations
Thermal Resistance (R_th(j-sp))	130 K/W - determines junction temperature rise above solder point during steady-state bias
Temperature Coefficient (S_Z)	+3.4 mV/K at I_Z = 5 mA - allows predictable voltage drift compensation across −65 °C to +150 °C

Pinout & Package

PDZ6.8B,115 is housed in a SOD323 (SC-76) plastic surface-mount package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode indicated by a marking bar on the body.

Pin/Terminal	Circuit Role	Design Meaning
1 (K)	Cathode	Connected to regulated output node; reverse-biased terminal during Zener operation
2 (A)	Anode	Connected to ground or lower-potential rail; defines polarity for breakdown conduction

Key Features

Feature	Design Value
Low dynamic impedance	60 Ω max at 5 mA - maintains stable reference voltage under load variation
Hard breakdown knee	Sharp transition into conduction - reduces ambiguity in regulation onset and improves noise immunity
Very low leakage current	0.5 μA max at 4.5 V - preserves signal integrity in high-impedance sensing nodes
SOD323 footprint	Compatible with JEDEC-standard reflow and wave soldering footprints - supports automated assembly
±2 % voltage tolerance	Tight initial calibration - eliminates need for post-assembly trimming in cost-sensitive designs

Applications

Power Supply Rail Clamping

Low-Voltage Reference Generator

Use Scenario: Protecting 5 V or 6 V logic rails from transient overvoltage events in industrial I/O modules.

IC Role / Device Role / Timing Role: Shunt regulator that conducts excess current when input exceeds 6.8 V threshold.

Use Value: Limits peak voltage to ≤7.0 V with <0.5 μA standby leakage, preserving downstream CMOS input integrity.

Use Scenario: Providing a stable 6.8 V reference for ADC biasing in portable medical sensors.

IC Role / Device Role / Timing Role: Precision voltage source establishing analog front-end operating point.

Use Value: Delivers ±2 % accuracy and +3.4 mV/K drift tracking, enabling calibrated offset correction across temperature.

ESD Protection Interface

Signal Level Translation

Use Scenario: Bidirectional ESD clamp on USB 2.0 D+ line in embedded host controllers.

IC Role / Device Role / Timing Role: Low-capacitance (215 pF) shunt element limiting voltage excursions to ±0.9 V forward / 6.93 V reverse.

Use Value: Absorbs 8 kV HBM surges while maintaining signal rise time due to minimal junction capacitance.

Use Scenario: Level-shifting 3.3 V GPIO signals to interface with 5 V peripherals in IoT edge nodes.

IC Role / Device Role / Timing Role: Forward-biased diode drop (0.9 V) combined with Zener reverse drop (6.8 V) creates defined translation thresholds.

Use Value: Enables robust 3.3 V → 5 V translation without active circuitry, reducing BOM count and quiescent power.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode voltage regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B6V8,115	Same SOD323 package, identical 6.8 V nominal, but ±5 % tolerance and higher r_dif (90 Ω)	Acceptable where tighter voltage stability is not required and cost is prioritized	Select when budget constraints outweigh precision needs and thermal derating margin is sufficient
MMSZ4687T1G	SOD123 package (larger footprint), same 6.8 V nominal, ±5 % tolerance, P_tot = 500 mW	Suitable for higher-power dissipation scenarios where board area permits larger package	Choose when >400 mW continuous dissipation is needed and SOD123 layout is already standardized

Compared with BZX384-B6V8,115 and MMSZ4687T1G, PDZ6.8B,115 offers superior voltage accuracy (±2 % vs ±5 %), lower dynamic impedance (60 Ω vs 90 Ω/100 Ω), and optimized thermal path for SOD323 - making it preferred for precision reference and space-limited clamping where regulation fidelity is critical.

Availability

PDZ6.8B,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive body control modules requiring stable component supply and consistent parametric performance across production batches.

Supply support for PDZ6.8B,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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

PDZ6.8B,115 belongs to the PDZ-B series of low-power Zener diodes engineered for general-purpose voltage regulation in miniaturized SMD designs - emphasizing tight tolerance, low leakage, and robust thermal behavior on standard PCBs.

FAQ

What is the maximum reverse current specification for PDZ6.8B,115 at 4.5 V?

The maximum reverse current (I_R) is 0.5 μA at V_R = 4.5 V and T_j = 25 °C. This value is confirmed in Table 8 of the Nexperia datasheet Rev. 5 and reflects the device's ability to maintain high impedance below its Zener knee, critical for low-power monitoring circuits.

Can PDZ6.8B,115 be used in bidirectional ESD protection configurations?

Yes - its forward voltage is 0.9 V at 10 mA and reverse breakdown is sharply defined at 6.65–6.93 V, enabling effective clamping of both positive and negative transients. Junction capacitance is 215 pF at 0 V, supporting USB 2.0 and similar signal lines without excessive bandwidth degradation.

What is the thermal resistance from junction to solder point (R_th(j-sp)) for PDZ6.8B,115?

R_th(j-sp) is 130 K/W under standard mounting conditions: FR4 PCB, single-sided copper, tin-plated, and standard SOD323 footprint. This value is measured per JEDEC JESD51-2 and enables accurate junction temperature estimation during steady-state bias.

Does PDZ6.8B,115 meet automotive qualification standards?

No - PDZ6.8B,115 is not automotive-qualified. The Nexperia datasheet explicitly states "Non-automotive qualified products" in Section 14 and confirms no AEC-Q200 testing or automotive-grade screening. It is intended for industrial, consumer, and computing applications only.

PDZ6.8B,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: PDZ-B

Package/Case:: SC-76, SOD-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 6.8 V

Tolerance:: ±2%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 40 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

PDZ6.8B,115 FAQ

1.How can I place an order for PDZ6.8B,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for PDZ6.8B,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 PDZ6.8B,115 reliable?

The price and inventory of PDZ6.8B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ6.8B,115 is usually 5 days.

3.What payment methods are accepted for PDZ6.8B,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ6.8B,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDZ6.8B,115?

PDZ6.8B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDZ6.8B,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 PDZ6.8B,115?

For technical support, including PDZ6.8B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ6.8B,115 requirements.

6.How does Aetrix verify that PDZ6.8B,115 is sourced from the original manufacturer or authorized distributors?

All PDZ6.8B,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 PDZ6.8B,115 meets industry standards.

7.What is the process for return or replacement of PDZ6.8B,115?

All PDZ6.8B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ6.8B,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 PDZ6.8B,115 part is unused and in its original packaging.

Return procedure for PDZ6.8B,115:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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