My Inquiry
My Account
Nexperia USA Inc. BZX884S-C51-QYL
- Part No.:
- BZX884S-C51-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-C51-QYL.pdf
- Description:
- DIODE ZENER 51V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,240
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX884S-C51-QYL from Nexperia is a precision Zener voltage regulator diode in the BZX884S-Q series, designed for stable voltage reference and overvoltage protection in compact automotive and industrial circuits. It delivers a nominal 51 V Zener voltage with ±5 % tolerance, 90 Ω typical differential resistance at IZ = 2 mA, and operates within −55 °C to +150 °C ambient range. Its ultra-small DFN1006BD-2 (SOD882BD) package supports high-density PCB layouts in power supply feedback paths and ESD-critical sensor interfaces.
For engineers reviewing the BZX884S-C51-QYL datasheet, BZX884S-C51-QYL pinout, BZX884S-C51-QYL application, or BZX884S-C51-QYL equivalent, key selection considerations include its AEC-Q101 qualification, side-wettable flanks for automated optical inspection, 365 mW power dissipation on FR4, and temperature coefficient of +60 mV/K at IZ = 2 mA - critical for thermal stability in under-hood electronics and industrial control modules.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 51 V reference across load variations and temperature shifts. Its differential resistance of 90 Ω (typ.) at 2 mA ensures low dynamic impedance for effective regulation, while the positive temperature coefficient (+60 mV/K) enables predictable drift behavior in high-temperature environments.
The device uses silicon planar epitaxial construction with metallized cathode and anode terminals, packaged in a leadless DFN1006BD-2 outline featuring side-wettable flanks for solder joint integrity verification. It complies with IEC 60134 absolute maximum ratings and is qualified per AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 48.0 V to 54.0 V at IZ = 2 mA - defines precise clamping threshold for 51 V nominal rail protection |
| Differential Resistance rdif | 90 Ω (typ.) at IZ = 2 mA - ensures minimal output voltage variation under dynamic load current changes |
| Temperature Coefficient SZ | +60 mV/K at IZ = 2 mA - quantifies predictable positive drift enabling thermal compensation design |
| Max Power Dissipation Ptot | 365 mW on FR4 PCB (70 μm Cu) - sets continuous operating limit for thermal management in space-constrained layouts |
| Reverse Current IR | 0.05 μA max at VR = 38.8 V - guarantees low leakage in standby and low-power monitoring circuits |
| Junction Temperature Tj | −55 °C to +150 °C - supports operation in engine control units, battery management systems, and industrial motor drives |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - defines conduction loss during forward-biased transient events |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless plastic package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks and 0.65 mm pitch; marking bar indicates cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker for correct orientation in reverse-bias voltage reference configuration |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield and field reliability |
| Ultra-small footprint | DFN1006BD-2 (1.0 mm × 0.6 mm) reduces PCB area by >50 % vs. traditional SOD-323 packages, enabling miniaturized designs |
| Two tolerance options | ±2 % (B-series) and ±5 % (C-series) allow cost/performance trade-off selection - C51-QYL is ±5 % variant |
| Wide voltage range support | Part of 37-device family spanning 2.4 V to 75 V, simplifying BOM consolidation across multiple voltage rails |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: Stabilizing 5V reference for microcontroller ADC sampling in harsh under-hood environments. IC Role / Device Role / Timing Role: Zener voltage reference providing stable bias for precision analog-to-digital conversion. Use Value: Maintains <±1% reference accuracy over −40°C to +125°C due to AEC-Q101 qualification and controlled temperature coefficient. |
Use Scenario: Clamping 4–20 mA loop transmitter output against transients induced by relay switching. IC Role / Device Role / Timing Role: Overvoltage protection element shunting surge energy to ground before it reaches sensitive op-amps. Use Value: Limits voltage excursions to ≤54 V with 90 Ω dynamic impedance, preventing latch-up in signal conditioning circuitry. |
| Medical Infusion Pump Power Supply | Smart Energy Meter Voltage Monitoring |
Use Scenario: Regulating auxiliary 3.3 V rail derived from isolated DC/DC converter in battery-backed medical device. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining stable bias for isolated feedback optocoupler. Use Value: Delivers 365 mW power handling on standard FR4, eliminating need for external heat sinking in sealed enclosures. |
Use Scenario: Monitoring 230 V AC mains via resistive divider with integrated overvoltage detection. IC Role / Device Role / Timing Role: High-voltage Zener clamp protecting MCU GPIO from line surges exceeding 51 V threshold. Use Value: Withstands 200 mA peak forward current and −55°C to +150°C operation, ensuring robustness in outdoor metering environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-B51-Q | Nominal 51 V with ±2 % tolerance (vs. ±5 %); 70 Ω rdif at 5 mA | Higher precision required in metrology-grade references where tighter VZ spread is critical | Select when ±2 % tolerance and lower dynamic impedance justify higher unit cost |
| MMSZ5257ET1G | 51 V ±5 %, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 rating | Non-automotive consumer or industrial applications where larger footprint and non-qualified status are acceptable | Choose only for cost-sensitive, non-automotive designs requiring higher power margin and legacy package compatibility |
Compared with BZX884S-C51-QYL, the BZX884S-B51-Q offers tighter tolerance and lower impedance but lacks the side-wettable flanks needed for AOI in high-reliability production; MMSZ5257ET1G provides greater power headroom but sacrifices automotive qualification and miniaturization benefits.
Availability
BZX884S-C51-QYL is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC analog input protection, and medical infusion pump power supplies requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX884S-C51-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with leadership in automotive-grade components and advanced packaging technologies.
The BZX884S-Q series belongs to Nexperia's precision Zener diode product line, engineered specifically for space-constrained, thermally demanding applications in automotive and industrial electronics where AEC-Q101 qualification and side-wettable flanks are mandatory.
FAQ
What is the maximum reverse voltage this Zener can safely clamp?
The BZX884S-C51-QYL is rated for a nominal Zener voltage of 51 V with a guaranteed range of 48.0 V to 54.0 V at IZ = 2 mA. Its absolute maximum reverse voltage is not specified separately, but operation beyond 54 V risks exceeding the device's power dissipation limit of 365 mW on FR4 PCB - sustained clamping above this threshold may cause thermal runaway.
Does this part require a series current-limiting resistor in all applications?
Yes - a series current-limiting resistor is mandatory to prevent thermal destruction. For example, at 51 V Zener voltage and 365 mW max power, the maximum safe Zener current is ~7.16 mA. The resistor value must be selected to ensure IZ stays within 2 mA to 7.16 mA across expected input voltage and load variations, per the device's recommended operating conditions.
How does the side-wettable flank feature impact assembly yield?
The side-wettable flanks on the DFN1006BD-2 package enable reliable solder joint inspection using standard AOI systems without X-ray. This eliminates blind spots inherent in bottom-terminal-only packages, reducing false call rates by up to 40 % and improving first-pass yield in high-volume automotive PCB assembly lines certified to IATF 16949.
Can this Zener replace older through-hole 1N5235B devices?
No - while both regulate at ~51 V, the BZX884S-C51-QYL is a surface-mount DFN1006BD-2 device with different thermal characteristics (365 mW vs. 500 mW for 1N5235B), no leads for mechanical strain relief, and AEC-Q101 qualification. Direct replacement requires PCB redesign, thermal revalidation, and verification of surge current capability in the target application.
BZX884S-C51-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 51 V
- Tolerance:
- ±1.96%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 180 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 35.7 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
BZX884S-C51-QYL FAQ
1.How can I place an order for BZX884S-C51-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-C51-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 BZX884S-C51-QYL reliable?
The price and inventory of BZX884S-C51-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884S-C51-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-C51-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-C51-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-C51-QYL?
BZX884S-C51-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-C51-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 BZX884S-C51-QYL?
For technical support, including BZX884S-C51-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-C51-QYL requirements.
6.How does Aetrix verify that BZX884S-C51-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-C51-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 BZX884S-C51-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-C51-QYL?
All BZX884S-C51-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-C51-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 BZX884S-C51-QYL part is unused and in its original packaging.
Return procedure for BZX884S-C51-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-C51-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…
