My Inquiry
My Account
Nexperia USA Inc. BZX8850-B24YL
- Part No.:
- BZX8850-B24YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-B24YL.pdf
- Description:
- DIODE ZENER 24V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:9,765
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX8850-B24YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 24 V nominal with ±2 % tolerance. It delivers stable 24 V reference under 50 μA test current, features 250 mW total power dissipation, and exhibits 250 Ω differential resistance at 5 mA, making it suitable for low-bias battery-powered sensor interfaces and portable voltage monitoring circuits.
For engineers reviewing the BZX8850-B24YL datasheet, BZX8850-B24YL pinout, BZX8850-B24YL application, or BZX8850-B24YL equivalent, this page provides verified Zener voltage, thermal resistance, leakage behavior, cathode/anode terminal mapping, and direct-fit alternatives for low-power regulation design.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal 24 V regulation voltage at IZ = 50 μA, maintaining tight ±2 % tolerance across temperature. Its differential resistance of 250 Ω at 5 mA ensures minimal voltage shift under load variation, while the −0.05 μA reverse current at VR = 19.2 V confirms low leakage in standby.
The device uses silicon planar technology in a leadless DFN1006-2 package with 0.5 mm height and 1.0 × 0.6 mm footprint, enabling high-density PCB layouts. Thermal resistance from junction to ambient is 500 K/W on FR4 single-sided copper, limiting continuous power handling to 250 mW at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 23.5 V to 24.5 V at IZ = 50 μA - defines precise 24 V reference point for low-current bias networks |
| Tolerance | ±2 % - enables accurate voltage setting without post-calibration in portable instrumentation |
| Differential Resistance rdiff | 250 Ω at IZ = 5 mA - limits output voltage drift to < ±125 mV per ±0.5 mA load change |
| Reverse Current IR | ≤ 0.05 μA at VR = 19.2 V - ensures negligible quiescent drain in battery-critical sleep modes |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - sets maximum continuous DC power in standard FR4 layout |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - supports use as polarity protection diode in dual-role circuits |
| Junction Temperature | −55 °C to +150 °C - allows operation in extended industrial environments without derating |
Pinout & Package
Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package; dimensions 1.0 × 0.6 × 0.5 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 μA - enables regulation in micro-power systems where supply current is constrained |
| Tight voltage tolerance | ±2 % - reduces need for trimming resistors in precision analog front-ends |
| Ultra-small footprint | DFN1006-2 (1.0 × 0.6 mm) - supports miniaturized wearable and IoT PCBs with >30 % area saving vs. SOD-323 |
| Optimized leakage profile | Intentional minor rise per AN90031 - improves switching speed and reduces noise in dynamic reference applications |
| Thermal robustness | 150 °C max junction temperature - sustains reliability in sealed enclosures without forced airflow |
Applications
| Portable Sensor Biasing | USB-C Power Monitor Reference |
|---|---|
|
Use Scenario: Providing stable 24 V bias to MEMS pressure sensor ICs in handheld diagnostic tools powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Zener voltage reference source establishing fixed excitation voltage for bridge-based sensing elements. Use Value: ±2 % tolerance and 250 Ω rdiff ensure sensor output linearity remains within 0.5 % full-scale error across battery discharge cycle. |
Use Scenario: Generating precise 24 V reference for ADC input scaling in USB-C PD sink voltage verification circuits. IC Role / Device Role / Timing Role: Low-leakage shunt regulator supplying clean reference to 12-bit SAR ADC measuring VBUS. Use Value: ≤0.05 μA reverse current at 19.2 V prevents loading of high-impedance divider network, preserving measurement accuracy. |
| Industrial PLC Input Protection | Low-Power RTC Backup Regulation |
|
Use Scenario: Clamping transient overvoltage on 24 V DC fieldbus inputs in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Shunt protection element absorbing surge energy while holding bus voltage below 27 V threshold. Use Value: 40 W non-repetitive peak power rating (tp = 100 μs) handles IEC 61000-4-5 Level 3 surges without failure. |
Use Scenario: Regulating backup voltage for real-time clock ICs during main power loss in smart meter designs. IC Role / Device Role / Timing Role: Low-quiescent shunt regulator maintaining 24 V rail from supercapacitor during brownout conditions. Use Value: 50 μA test current aligns with supercap lifetime requirements, extending backup duration beyond 72 hours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C24 | ±5 % tolerance, SOT-23 package, 350 mW Ptot, rdiff = 300 Ω at 5 mA | Higher power but larger footprint; higher leakage (≤1.0 μA at 19.2 V) | Select when board space permits and tighter tolerance is not required |
| MMSZ5245B | ±5 % tolerance, SOD-123 package, 500 mW Ptot, rdiff = 275 Ω at 20 mA | Higher power rating but 3× larger footprint; requires ≥20 mA for spec compliance | Select for higher-current regulation where thermal margin is critical |
Compared with BZX8850-B24YL, BZX84-C24 offers greater power headroom but sacrifices precision and size efficiency, while MMSZ5245B trades miniaturization for higher current capability-making BZX8850-B24YL optimal for space-constrained, micro-power 24 V reference designs.
Availability
BZX8850-B24YL is available at Aetrix Electronics and suitable for portable sensor biasing, USB-C power monitor reference, and industrial PLC input protection requiring stable component supply with traceable sourcing and consistent parametric performance.
Supply support for BZX8850-B24YL 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-powered and space-constrained applications demanding tight voltage tolerance and ultra-low leakage at microampere bias levels.
FAQ
What is the exact Zener voltage range for BZX8850-B24YL at 50 µA test current?
The BZX8850-B24YL has a guaranteed Zener voltage range of 23.5 V to 24.5 V when measured at IZ = 50 μA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 1 (17 July 2024). This ±2 % tolerance is maintained across the full operating temperature range of −55 °C to +150 °C.
Can BZX8850-B24YL be used in place of a 24 V Zener with ±5 % tolerance?
Yes, but only if the circuit design accommodates tighter regulation: BZX8850-B24YL's ±2 % tolerance yields a 23.5–24.5 V window versus ±5 % parts (22.8–25.2 V). Its lower leakage (≤0.05 μA vs. ≥1 μA) and smaller DFN1006-2 footprint also reduce board area and standby current, though thermal derating must follow its 250 mW limit on FR4.
What is the maximum reverse voltage before breakdown begins?
Breakdown onset occurs at approximately 22.8 V, defined as the voltage where reverse current reaches 1 μA. The datasheet specifies that at VR = 19.2 V (80 % of nominal VZ), reverse current is ≤0.05 μA - confirming sharp knee characteristics and reliable regulation starting near 23 V under typical conditions.
Is the cathode marking visible on the top surface of the DFN1006-2 package?
Yes, the cathode is unambiguously marked by a laser-etched or molded bar on the top surface of the SOD882 package, aligned with Pin 1 per Figure 9 in the datasheet. This marking is visible under 10× magnification and matches the simplified outline in Table 2, ensuring correct orientation during automated placement.
BZX8850-B24YL 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):
- 24 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.2 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-B24YL FAQ
1.How can I place an order for BZX8850-B24YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-B24YL 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-B24YL reliable?
The price and inventory of BZX8850-B24YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-B24YL is usually 5 days.
3.What payment methods are accepted for BZX8850-B24YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-B24YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-B24YL?
BZX8850-B24YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-B24YL 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-B24YL?
For technical support, including BZX8850-B24YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-B24YL requirements.
6.How does Aetrix verify that BZX8850-B24YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-B24YL 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-B24YL meets industry standards.
7.What is the process for return or replacement of BZX8850-B24YL?
All BZX8850-B24YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-B24YL, 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-B24YL part is unused and in its original packaging.
Return procedure for BZX8850-B24YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-B24YL 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…
