My Inquiry
My Account
Nexperia USA Inc. BZX84W-C36-QF
- Part No.:
- BZX84W-C36-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C36-QF.pdf
- Description:
- DIODE ZENER 36V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84W-C36-QF from Nexperia is a ±5 % tolerance Zener diode with 36 V nominal regulation voltage, 350 Ω differential resistance at 2 mA, and 33.0 mV/K temperature coefficient, housed in SOT323 (SC-70) package for precision voltage reference in automotive power supply monitoring circuits.
For engineers reviewing the BZX84W-C36-QF datasheet, BZX84W-C36-QF pinout, BZX84W-C36-QF application, or BZX84W-C36-QF equivalent, this page delivers verified Zener parameters, AEC-Q101 qualification status, thermal resistance (455 K/W), reverse leakage (50 nA at 25.2 V), and automotive-grade packaging details.
Technical Context
This Zener operates in reverse breakdown to maintain stable 36 V reference under varying load and temperature conditions. Its 350 Ω dynamic impedance ensures minimal output voltage variation across 2 mA test current, while the +33.0 mV/K temperature coefficient enables predictable drift compensation in feedback loops.
Rated for 275 mW total power dissipation on FR4 PCB and qualified per AEC-Q101, it supports operation from −55 °C to +150 °C ambient, with non-repetitive surge capability up to 40 W for transient overvoltage protection in 100 µs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 36 V nominal (±5 % tolerance); defines precise regulation point for feedback networks |
| Differential Resistance rdif | 350 Ω at IZ = 2 mA; determines output voltage stability under load current changes |
| Temperature Coefficient SZ | +33.0 mV/K at IZ = 2 mA; quantifies voltage drift per degree Celsius for thermal design margining |
| Reverse Leakage IR | 50 nA at VR = 25.2 V (0.7 × VZ); critical for low-power standby circuit accuracy |
| Total Power Dissipation Ptot | 275 mW at Tamb = 25 °C on FR4 PCB; sets maximum continuous power handling in standard layout |
| Junction-to-Ambient Rth(j-a) | 455 K/W; defines thermal rise per watt for board-level thermal management planning |
| Forward Voltage VF | 0.9 V at IF = 10 mA; relevant for polarity-check or ESD clamp configurations |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals, optimized for high-density automotive PCB layouts and reflow/wave soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connects to lower-potential node in reverse-biased Zener configuration |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or pad required |
| 3 | Cathode (K) | Connects to higher-potential node; carries regulated output current in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and infotainment systems requiring reliability beyond industrial grade |
| ±5 % Zener voltage tolerance | Enables tighter regulation band than ±10 % alternatives, reducing need for post-regulation trimming |
| Low 50 nA leakage at 0.7×VZ | Minimizes quiescent current error in battery-backed or ultra-low-power sensing circuits |
| 350 Ω dynamic impedance | Provides <12 mV output shift per 34 mA load change-critical for analog sensor reference stability |
| SOT323 footprint compatibility | Matches industry-standard SC-70 land pattern (2.65 mm × 2.35 mm), enabling drop-in replacement in existing designs |
Applications
| Automotive Power Rail Monitoring | Industrial Sensor Reference Supply |
|---|---|
|
Use Scenario: Monitoring 12 V/24 V vehicle battery voltage with microcontroller ADC input. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 36 V clamping point for resistive divider scaling. Use Value: Enables accurate battery state-of-charge estimation within ±0.5 % full-scale error despite ambient temperature swings from −40 °C to +125 °C. |
Use Scenario: Generating precision bias voltage for MEMS pressure transducer signal conditioning. IC Role / Device Role / Timing Role: Low-drift Zener reference stabilizing op-amp gain-setting network. Use Value: Limits offset drift to <15 µV/°C over operating range, preserving sensor linearity to 0.1 % FS. |
| Programmable Logic Controller Input Protection | DC-DC Converter Feedback Divider |
|
Use Scenario: Protecting PLC digital input against 48 V field wiring surges. IC Role / Device Role / Timing Role: Clamping diode absorbing transient energy above 36 V threshold. Use Value: Withstands 40 W non-repetitive surges (100 µs), preventing damage to downstream optocouplers without external TVS. |
Use Scenario: Setting output voltage of isolated flyback converter via optocoupler feedback loop. IC Role / Device Role / Timing Role: Precision reference defining upper divider node for feedback resistor network. Use Value: Maintains ±1.2 % output regulation across line/load/temperature due to tight 36 V tolerance and low rdif. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-B36-Q | ±2 % tolerance (vs. ±5 %), 300 Ω rdif, +33.0 mV/K SZ | Higher precision needed for metrology-grade references; tighter thermal drift control | Select when absolute voltage accuracy >0.7 V matters more than cost or availability |
| MMSZ5241B-TP | 36 V ±5 %, 350 Ω rdif, but only industrial-grade (−65 °C to +150 °C), no AEC-Q101 | Lacks automotive qualification; unsuitable for under-hood or safety-critical modules | Acceptable for consumer or industrial power supplies where AEC compliance is not mandated |
Compared with BZX84W-C36-QF, the BZX84W-B36-Q offers superior voltage accuracy at higher cost and identical thermal behavior, while MMSZ5241B-TP matches electrical specs but omits automotive qualification-making BZX84W-C36-QF the optimal balance of precision, ruggedness, and compliance for automotive embedded systems.
Availability
BZX84W-C36-QF is available at Aetrix Electronics and suitable for automotive power monitoring, industrial sensor reference, PLC input protection, and DC-DC feedback applications requiring stable component supply across extended temperature ranges and AEC-Q101 compliance.
Supply support for BZX84W-C36-QF 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 and logic devices for automotive, industrial, and mobile markets.
The BZX84W-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient suppression in harsh automotive environments.
FAQ
What is the maximum continuous power dissipation for BZX84W-C36-QF?
The BZX84W-C36-QF has a total power dissipation rating of 275 mW at 25 °C ambient when mounted on a standard FR4 PCB with single-sided copper and tin plating. Derating is required above 25 °C at 0.607 mW/°C based on its 455 K/W junction-to-ambient thermal resistance.
Is BZX84W-C36-QF suitable for automotive applications?
Yes-BZX84W-C36-QF is fully qualified per AEC-Q101 for automotive use, with guaranteed operation from −55 °C to +150 °C ambient and validated reliability for under-hood, body control, and infotainment systems requiring long-term stability and surge resilience.
How does the 350 Ω differential resistance affect circuit performance?
A 350 Ω rdif means the Zener voltage shifts by 350 mV per 1 mA change in reverse current. In a typical 2 mA bias application, this translates to ±3.5 mV regulation error per ±10 µA load variation-critical for maintaining ADC reference accuracy in sensor interfaces.
What is the significance of the 'n.c.' terminal in the SOT323 package?
Pin 2 is internally not connected and must remain unconnected on the PCB. Routing traces or applying solder paste to this pad violates the specified SOT323 footprint and risks mechanical stress or thermal imbalance during reflow, potentially compromising long-term reliability.
BZX84W-C36-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W-Q
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5.56%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 25.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C36-QF FAQ
1.How can I place an order for BZX84W-C36-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C36-QF 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 BZX84W-C36-QF reliable?
The price and inventory of BZX84W-C36-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C36-QF is usually 5 days.
3.What payment methods are accepted for BZX84W-C36-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C36-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C36-QF?
BZX84W-C36-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C36-QF 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 BZX84W-C36-QF?
For technical support, including BZX84W-C36-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C36-QF requirements.
6.How does Aetrix verify that BZX84W-C36-QF is sourced from the original manufacturer or authorized distributors?
All BZX84W-C36-QF 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 BZX84W-C36-QF meets industry standards.
7.What is the process for return or replacement of BZX84W-C36-QF?
All BZX84W-C36-QF units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C36-QF, 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 BZX84W-C36-QF part is unused and in its original packaging.
Return procedure for BZX84W-C36-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C36-QF 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…
