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

Nexperia USA Inc. BZX8850-C27YL

Name: BZX8850-C27YL
Brand: Nexperia USA Inc.
SKU: BZX8850-C27YL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX8850-C27YL

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SOD-882

Datasheet:: BZX8850-C27YL.pdf

Description:: DIODE ZENER 27V 250MW DFN1006-2

Quantity:: RFQ Add To RFQ list

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Inventory:7,570

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Product details

Overview

BZX8850-C27YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 27 V nominal with ±5 % tolerance. It delivers stable reference voltage at 50 µA test current, features 300 Ω differential resistance at 5 mA, and operates within −55 °C to +150 °C ambient range. Used in battery-powered sensor biasing and low-power microcontroller reset circuits.

For engineers reviewing the BZX8850-C27YL datasheet, BZX8850-C27YL pinout, BZX8850-C27YL application, or BZX8850-C27YL equivalent, this page provides verified Zener voltage, thermal resistance, leakage behavior, and SOD882 footprint compatibility - critical for space-constrained portable designs requiring stable low-bias regulation.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 27 V, specified at I_Z = 50 µA and T_j = 25 °C. Its temperature coefficient is +0.05 mV/K, indicating minimal drift over temperature, and it exhibits 50 pF capacitance at 0 V reverse bias and 1 MHz.

The device supports up to 200 mA forward current and withstands non-repetitive peak reverse power of 40 W (100 µs pulse), while its junction-to-ambient thermal resistance is 500 K/W on FR4 PCB. The cathode-marked SOD882 package enables automated placement in ultra-compact layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener voltage V_Z	25.65 V to 28.35 V at I_Z = 50 µA - ensures ±5 % regulation accuracy under low-bias conditions
Differential resistance r_diff	300 Ω max at I_Z = 5 mA - defines output impedance affecting load regulation stability
Reverse current I_R	0.05 µA max at V_R = 20.4 V - guarantees minimal quiescent drain in standby circuits
Total power dissipation P_tot	250 mW at T_amb ≤ 25 °C - sets maximum continuous power handling on standard FR4 PCB
Forward voltage V_F	0.9 V max at I_F = 10 mA - determines conduction loss when used in forward-biased protection paths
Junction temperature T_j	150 °C max - defines upper thermal limit for reliable long-term operation
Package	SOD882 (DFN1006-2), 1.0 × 0.6 × 0.5 mm - enables 0201-class board area usage with solderable side terminals

Pinout & Package

SOD882 (DFN1006-2) is a leadless, surface-mount plastic package with two terminals and a cathode marking bar on the top surface. Dimensions are 1.02 mm × 0.62 mm × 0.55 mm; terminals are exposed copper pads on the bottom, compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode (K)	Connected to regulated output node; polarity-sensitive terminal where Zener breakdown occurs
2	Anode (A)	Connected to ground or lower-potential rail; completes reverse-bias path for regulation

Key Features

Feature	Design Value
Low test current specification	50 µA Zener test point - enables accurate regulation in µA-level bias networks without loading
Optimized leakage profile	Intentional minor IR rise per AN90031 - improves switching speed and reduces noise in dynamic reference applications
Ultra-small footprint	DFN1006-2 (0.62 mm width) - saves >60 % board area vs. SOD-123 while maintaining solder joint reliability
Stable temperature coefficient	+0.05 mV/K - limits V_Z drift to <±15 mV across −40 °C to +85 °C operating range
Controlled capacitance	50 pF at 0 V, 1 MHz - minimizes high-frequency coupling in analog reference and timing circuits

Applications

Portable Sensor Biasing

Microcontroller Reset Circuit

Use Scenario: Providing stable 27 V bias to MEMS pressure sensor front-end in handheld medical devices.

IC Role / Device Role / Timing Role: Zener reference diode establishing fixed voltage rail for analog signal conditioning.

Use Value: Low 50 µA test current prevents battery drain; ±5 % tolerance ensures ADC reference accuracy within system error budget.

Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ MCU in IoT edge node during brown-out events.

IC Role / Device Role / Timing Role: Voltage monitor element triggering POR circuit via comparator input.

Use Value: 300 Ω r_diff ensures sharp knee transition; 50 pF capacitance avoids false triggering from digital noise.

Low-Power RF Front-End

Industrial Signal Conditioning

Use Scenario: Supplying regulated 27 V to GaN HEMT gate driver in compact 2.4 GHz transmitter module.

IC Role / Device Role / Timing Role: Low-current Zener clamp stabilizing gate bias voltage against supply ripple.

Use Value: 250 mW P_tot rating supports transient surge absorption; SOD882 package fits under RF shield.

Use Scenario: Setting precision reference for 4–20 mA loop transmitter in hazardous-area process controller.

IC Role / Device Role / Timing Role: Primary voltage reference source for DAC output stage calibration.

Use Value: 150 °C T_j rating ensures operation in sealed enclosures; ±5 % tolerance aligns with 0.1 % loop accuracy target.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX884-C27	Same 27 V ±5 % rating but in larger SOD-323 package (1.7 × 1.3 mm); 350 mW P_tot; 400 Ω r_diff	Higher power margin but 2.8× larger footprint; less suitable for ultra-dense layouts	Select when thermal headroom >250 mW is required and board space permits SOD-323
MMSZ5256ET1G	27 V ±5 % in SOD-123; 500 mW P_tot; 35 Ω r_diff at 20 mA; higher test current (20 mA)	Better regulation stiffness but draws 400× more bias current; unsuitable for µA-battery systems	Select only for high-stability analog references where bias current is not constrained

Compared with BZX8850-C27YL, BZX884-C27 trades size for thermal margin, while MMSZ5256ET1G sacrifices low-bias capability for tighter regulation - making BZX8850-C27YL uniquely suited for miniaturized, battery-sensitive Zener applications.

Availability

BZX8850-C27YL is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset circuits, low-power RF front-ends, and industrial signal conditioning requiring stable component supply and tight Zener voltage control.

Supply support for BZX8850-C27YL 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 logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.

The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for space-constrained, battery-powered systems needing stable voltage references at microampere bias levels.

FAQ

What is the exact Zener voltage tolerance and test condition for BZX8850-C27YL?

The BZX8850-C27YL has a nominal Zener voltage of 27 V with ±5 % tolerance, verified at I_Z = 50 µA and T_j = 25 °C. Measured values fall between 25.65 V and 28.35 V under these conditions, as confirmed in Table 8 of the official Nexperia datasheet Rev. 1 (2024).

Can BZX8850-C27YL be used in forward conduction mode?

Yes - it functions as a standard silicon diode in forward bias, with V_F ≤ 0.9 V at I_F = 10 mA. However, its primary design purpose is reverse-bias Zener regulation; forward use is limited to clamping or protection roles where low V_F is beneficial and 200 mA absolute max forward current is respected.

Is the SOD882 package compatible with standard reflow soldering processes?

Yes - the SOD882 (DFN1006-2) package is qualified for IPC/JEDEC J-STD-020D reflow profiles. Figure 10 in the datasheet specifies a recommended solder land pattern with 0.3 mm pad width and 0.6 mm spacing, supporting Type 3 solder paste and peak temperatures up to 260 °C.

How does the "intentional minor rise of leakage current" affect circuit performance?

Per Application Note AN90031, this controlled IR increase improves switching speed and reduces noise by optimizing carrier lifetime in the depletion region. In practice, it yields faster turn-on/turn-off in dynamic reference circuits and lowers broadband noise floor - measurable as reduced RMS jitter in timing-sensitive analog stages.

BZX8850-C27YL Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: BZX8850

Package/Case:: SOD-882

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 27 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 80 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 20.4 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DFN1006-2

BZX8850-C27YL FAQ

1.How can I place an order for BZX8850-C27YL through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX8850-C27YL 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 BZX8850-C27YL reliable?

The price and inventory of BZX8850-C27YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-C27YL is usually 5 days.

3.What payment methods are accepted for BZX8850-C27YL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-C27YL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX8850-C27YL?

BZX8850-C27YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX8850-C27YL 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 BZX8850-C27YL?

For technical support, including BZX8850-C27YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-C27YL requirements.

6.How does Aetrix verify that BZX8850-C27YL is sourced from the original manufacturer or authorized distributors?

All BZX8850-C27YL 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 BZX8850-C27YL meets industry standards.

7.What is the process for return or replacement of BZX8850-C27YL?

All BZX8850-C27YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-C27YL, 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 BZX8850-C27YL part is unused and in its original packaging.

Return procedure for BZX8850-C27YL:

1.Submit a request within 90 days.

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

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