My Inquiry
My Account
Nexperia USA Inc. BZX8850S-C68-QYL
- Part No.:
- BZX8850S-C68-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C68-QYL.pdf
- Description:
- DIODE ZENER 68V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,320
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX8850S-C68-QYL from Nexperia is a low-current Zener voltage regulator diode in the BZX8850S-Q series, designed for precision biasing and voltage reference in space-constrained, low-power circuits. It provides a nominal 6.8 V regulation at 50 µA test current, with ±2 % tolerance (C-series), 365 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-C68-QYL datasheet, BZX8850S-C68-QYL pinout, BZX8850S-C68-QYL application, or BZX8850S-C68-QYL equivalent, this device is selected for ultra-low-current voltage stabilization in battery-powered sensors, ECU reference rails, and portable instrumentation where side-wettable flanks support automated optical inspection (AOI) and robust reflow soldering.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 6.66 V to 6.94 V at IZ = 50 µA, exhibiting a temperature coefficient of +0.4 mV/K and differential resistance of 160 Ω at IZ = 5 mA. Its low 50 µA test current enables stable regulation under micro-power conditions.
The device uses a planar silicon process with intentional minor leakage optimization per AN90031, supporting fast switching transients and reduced noise in feedback paths. Thermal resistance from junction to ambient is 340 K/W on standard FR4 PCB, limiting continuous operation to ≤150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.8 V (min 6.66 V, max 6.94 V at IZ = 50 µA - defines precise reference point for low-bias circuits) |
| Tolerance | ±2 % (C-series grading - ensures tight voltage matching across production lots for calibration-critical designs) |
| Power Dissipation | 365 mW (at Tamb ≤ 25 °C on single-sided FR4 - sets maximum steady-state thermal load without derating) |
| Forward Voltage | ≤0.9 V at IF = 10 mA - confirms low-loss conduction in forward-biased protection or clamping roles) |
| Differential Resistance | 160 Ω at IZ = 5 mA - quantifies voltage regulation stiffness against load current variation) |
| Junction Temperature | −55 °C to +150 °C - supports operation in under-hood automotive environments and industrial edge nodes) |
| AEC-Q101 Qualified | Yes - validated for automotive discrete semiconductor stress testing, enabling use in ASIL-B compliant subsystems) |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks for AOI-compatible reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar on top surface identifies this terminal - polarity critical for correct Zener biasing) |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration enables voltage clamping and reference generation) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low test current | Specified at 50 µA - enables stable regulation in µA-level bias networks for IoT sensor nodes and standby circuits) |
| Side-wettable flanks | DFN1006BD-2 package geometry - allows automated optical inspection of solder joint quality on both side edges post-reflow) |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching noise and improves transient response in feedback loops) |
| Automotive qualification | AEC-Q101 compliant - meets stress test requirements for temperature cycling, HTRB, and ESD, supporting Tier-1 ECU designs) |
| Two tolerance grades | ±2 % (C-series) and ±5 % (B-series) - enables cost-performance trade-off selection without redesigning PCB layout) |
Applications
| Automotive Body Control Module (BCM) | Portable Medical Sensor Biasing |
|---|---|
Use Scenario: Providing stable 6.8 V reference for analog front-end comparators monitoring door lock actuator current. IC Role / Device Role / Timing Role: Zener voltage reference diode - establishes precise threshold voltage independent of supply rail fluctuations. Use Value: Enables accurate current sensing at <100 µA quiescent current, meeting ISO 16750-2 cold-cranking voltage drop requirements. |
Use Scenario: Biasing photodiode amplifier in handheld pulse oximeter with coin-cell power source. IC Role / Device Role / Timing Role: Low-current voltage regulator - maintains fixed reference for transimpedance amplifier offset calibration. Use Value: Delivers <1 µA leakage at 5 V reverse bias, preserving battery life >12 months while sustaining <0.5 % reference drift over −20 °C to +70 °C. |
| Industrial PLC Input Protection | Smart Meter Reference Rail |
Use Scenario: Clamping 24 V DC input signals to protect microcontroller GPIOs from overvoltage transients. IC Role / Device Role / Timing Role: Zener clamp diode - shunts excess energy during surge events while maintaining signal integrity. Use Value: Withstands non-repetitive 40 W peak power surges (tp = 100 µs), meeting IEC 61000-4-5 Level 3 immunity requirements. |
Use Scenario: Generating stable 6.8 V reference for metrology ADC in Class 0.2 smart electricity meters. IC Role / Device Role / Timing Role: Precision voltage reference - supplies clean, low-noise bias to sigma-delta modulator reference input. Use Value: Achieves <10 ppm/°C effective TC via matched layout and C-series tolerance, supporting <0.1 % energy measurement accuracy over full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V8,215 | Same 6.8 V, ±5 % (B-series), SOT23 package (larger footprint, no side-wettable flanks) | Higher leakage (1 µA vs. 0.1 µA at VR = 5.5 V), unsuitable for sub-µA bias networks | Select when board space permits larger package and AOI is not required. |
| MMSZ5235B-TP | 6.8 V, ±5 %, SOD-123 package, 500 mW Ptot, higher rdiff (1000 Ω) | Higher power rating but poorer regulation stiffness - better for high-current clamping, worse for precision reference | Select only for non-critical clamping where thermal margin outweighs voltage stability needs. |
Compared with BZX8850S-C68-QYL, BZX84-C6V8,215 trades AOI compatibility and ultra-low leakage for broader availability and lower cost in legacy SOT23 designs, while MMSZ5235B-TP sacrifices regulation precision for higher surge handling - making the BZX8850S-C68-QYL optimal for new automotive and portable instrumentation layouts demanding miniaturization and metrology-grade stability.
Availability
BZX8850S-C68-QYL is available at Aetrix Electronics and suitable for automotive body control modules, portable medical sensor biasing, and smart meter reference rails requiring stable component supply with AEC-Q101 traceability and side-wettable flank manufacturability.
Supply support for BZX8850S-C68-QYL 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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
BZX8850S-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for ultra-low-current voltage regulation and reference applications in space-constrained, thermally demanding environments.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850S-C68-QYL?
The BZX8850S-C68-QYL has a nominal Zener voltage of 6.8 V, with guaranteed breakdown occurring between 6.66 V and 6.94 V at IZ = 50 µA. Its absolute maximum reverse voltage is not defined - operation above the specified VZ range risks exceeding the 365 mW power limit and triggering thermal runaway under sustained bias.
Does BZX8850S-C68-QYL support reflow soldering with standard lead-free profiles?
Yes - the DFN1006BD-2 package is qualified for lead-free reflow per J-STD-020. Recommended peak temperature is 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. The side-wettable flanks ensure reliable solder fillet formation and AOI detectability on standard stencil-printed boards.
How does the "intentional minor rise of leakage current" affect circuit performance?
This design feature (per AN90031) slightly increases IR at low VR to reduce minority-carrier lifetime, resulting in faster turn-off time and lower switching noise. In practice, it improves transient response in feedback references and reduces audible noise in audio bias networks without compromising DC regulation accuracy.
Can BZX8850S-C68-QYL replace BZX84-C6V8 in an existing SOT23 design?
No - the BZX8850S-C68-QYL uses DFN1006BD-2 (SOD882BD) packaging, which is physically incompatible with SOT23 footprints. While electrical characteristics are similar, mechanical redesign is required to accommodate the 1.0 mm × 0.6 mm body and side-wettable flank soldering requirements.
BZX8850S-C68-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 68 V
- Tolerance:
- ±5%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 240 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 47.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-C68-QYL FAQ
1.How can I place an order for BZX8850S-C68-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C68-QYL 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 BZX8850S-C68-QYL reliable?
The price and inventory of BZX8850S-C68-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850S-C68-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C68-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C68-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C68-QYL?
BZX8850S-C68-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C68-QYL 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 BZX8850S-C68-QYL?
For technical support, including BZX8850S-C68-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C68-QYL requirements.
6.How does Aetrix verify that BZX8850S-C68-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C68-QYL 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 BZX8850S-C68-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C68-QYL?
All BZX8850S-C68-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C68-QYL, 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 BZX8850S-C68-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C68-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-C68-QYL 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…
