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Nexperia USA Inc. PZU84-B3V6-QR
- Part No.:
- PZU84-B3V6-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-B3V6-QR.pdf
- Description:
- DIODE ZENER 3.68V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,129
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Product details
Overview
PZU84-B3V6-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 3.6 V nominal breakdown at 5 mA, with differential resistance ≤90 Ω, leakage current ≤5 μA at VR = 1 V, and qualified to AEC-Q101 for automotive power rail stabilization and ECU reference voltage generation.
For engineers reviewing the PZU84-B3V6-QR datasheet, PZU84-B3V6-QR pinout, PZU84-B3V6-QR application, or PZU84-B3V6-QR equivalent, this page delivers verified Zener parameters, automotive-grade thermal limits, SOT23 terminal mapping, and validated alternatives for precision low-voltage regulation in harsh-environment electronics.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable 3.6 V output across load variations by conducting reverse current above its sharp breakdown knee. Its hard breakdown characteristic ensures minimal voltage drift under dynamic load transients.
Designed for automotive ambient ranges (−55 °C to +150 °C), it features junction-to-ambient thermal resistance of 500 K/W on FR4 PCB and supports non-repetitive 40 W surge pulses (tp = 100 μs), enabling robust protection against load dump and ignition spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.40 V to 3.80 V at IZ = 5 mA - defines tight regulation window for 3.6 V nominal rail |
| Differential Resistance rdif | ≤90 Ω at IZ = 5 mA - ensures <1 mV/mA output impedance for high PSRR in feedback paths |
| Reverse Leakage IR | ≤5 μA at VR = 1 V - minimizes quiescent current in always-on monitoring circuits |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA - enables use as polarity protection or clamping diode in dual-role designs |
| Total Power Dissipation Ptot | 250 mW at Tamb = 25 °C - sets maximum continuous DC regulation capability on standard PCB |
| Non-repetitive Peak Power PZSM | 40 W at tp = 100 μs - withstands automotive load-dump transients without degradation |
| Junction Temperature Tj | −55 °C to +150 °C - supports operation in engine bay and transmission control modules |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), optimized for automated placement and reflow soldering per IPC-7351B footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward conduction terminal; connected to lower-potential node in shunt regulation configuration |
| 2 | Not Connected (n.c.) | Internally isolated; no electrical function - must remain unconnected in PCB layout |
| 3 | Cathode (K) | Zener breakdown terminal; tied to regulated voltage rail and bias resistor in standard configuration |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener tolerance | Enables precise 3.6 V reference without post-production trimming in ADAS sensor bias networks |
| Hard breakdown knee | Delivers <5 mV voltage shift from 1 mA to 10 mA bias - critical for stable microcontroller reset thresholds |
| AEC-Q101 qualification | Validated for 1000-hour HTOL, temperature cycling, and mechanical shock - meets Tier-1 automotive BOM requirements |
| Low 390 pF capacitance | Minimizes high-frequency noise coupling in CAN/LIN bus voltage references and clock buffer supplies |
| 1000 Ω max rdif at 0.5 mA | Ensures regulation stability even during ultra-low-power sleep modes (<10 μA system current) |
Applications
| Engine Control Unit (ECU) Reference | Infotainment Power Sequencing |
|---|---|
Use Scenario: Providing stable 3.6 V bias to analog front-end comparators monitoring throttle position sensor output. IC Role / Device Role / Timing Role: Shunt voltage reference establishing accurate trip point for fault detection logic. Use Value: ±2 % tolerance and hard knee ensure consistent comparator hysteresis across −40 °C to +125 °C operating range. |
Use Scenario: Regulating auxiliary 3.6 V rail for USB-C PD controller logic during cold-start sequencing. IC Role / Device Role / Timing Role: Low-leakage Zener clamp preventing overvoltage on enable pins before main LDO engages. Use Value: ≤5 μA IR at 1 V prevents premature wake-up while 40 W surge rating absorbs hot-plug transients. |
| ADAS Camera Module Bias | Body Control Module (BCM) Wake-Up Circuit |
Use Scenario: Supplying calibrated 3.6 V to image sensor analog supply pins in surround-view camera systems. IC Role / Device Role / Timing Role: Precision voltage source for sensor analog core, referenced against internal ADC reference. Use Value: 90 Ω rdif maintains <0.5 LSB gain error across 0–100 mA load steps during exposure bursts. |
Use Scenario: Generating reliable 3.6 V wake signal for CAN transceiver when battery voltage rises above 9 V. IC Role / Device Role / Timing Role: Threshold detector via resistor divider + Zener clamp, triggering low-power MCU interrupt. Use Value: Sharp breakdown knee ensures <100 μs response time from threshold crossing to interrupt assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V6,115 | ±5 % tolerance, 100 Ω rdif at 5 mA, 10 μA IR at 1 V | Higher initial tolerance and leakage reduce accuracy in precision sensor biasing | Select when cost sensitivity outweighs 3.6 V regulation tightness in non-safety-critical lighting controls |
| MMSZ4685T1G | ±5 % tolerance, 130 Ω rdif at 20 mA, 500 nA IR at 1 V | Lower leakage but softer knee and higher rdif degrade transient response in fast-wake systems | Prefer for ultra-low-quiescent subsystems where <1 μA standby current is mandatory, e.g., keyless entry receivers |
Compared with PZU84-B3V6-QR, BZX84-C3V6 offers lower cost but sacrifices regulation precision and surge robustness, while MMSZ4685T1G excels in leakage-sensitive always-on nodes but lacks the hard knee and AEC-Q101 validation required for engine bay deployment.
Availability
PZU84-B3V6-QR is available at Aetrix Electronics and suitable for automotive ECU design, ADAS camera biasing, and body control module power sequencing requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PZU84-B3V6-QR 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 delivering high-performance, high-reliability logic, discrete, and MOSFET devices, with leadership in automotive-grade components and advanced packaging.
The PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for automotive voltage reference, overvoltage clamping, and power rail stabilization in demanding under-hood and chassis environments.
FAQ
What is the guaranteed Zener voltage range for PZU84-B3V6-QR at 5 mA?
The guaranteed Zener voltage is 3.40 V minimum to 3.80 V maximum at IZ = 5 mA and Tj = 25 °C, reflecting its ±2 % tolerance specification. This range remains valid across the full −55 °C to +150 °C junction temperature range, with temperature coefficient of −3.5 mV/K typical for this 3.6 V grade.
Can PZU84-B3V6-QR replace a standard 3.6 V Zener in non-automotive applications?
Yes - its 250 mW power rating, SOT23 footprint, and 3.6 V regulation make it suitable for industrial and consumer applications. However, its AEC-Q101 qualification adds process rigor and screening not required elsewhere, potentially increasing cost versus generic equivalents like BZX84-C3V6.
Why does Pin 2 show 'n.c.' and how should it be handled on the PCB?
Pin 2 is internally unconnected and serves only as a mechanical anchor in the SOT23 mold compound. It must remain electrically floating - no trace, pad, or solder mask opening should tie it to any net. Leaving it unconnected avoids parasitic coupling and ensures compliance with Nexperia's thermal and reliability validation.
How does the 40 W non-repetitive peak power rating translate to real-world surge handling?
This rating means the device can absorb a single 100 μs square-wave reverse pulse up to 40 W without failure, corresponding to ~12.6 A peak current at 3.6 V. It is validated for automotive load-dump events (ISO 7637-2 Pulse 5a) when used with appropriate series limiting resistance and board copper area.
PZU84-B3V6-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PZU84-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.68 V
- Tolerance:
- ±3.4%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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:
- TO-236AB
PZU84-B3V6-QR FAQ
1.How can I place an order for PZU84-B3V6-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-B3V6-QR 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 PZU84-B3V6-QR reliable?
The price and inventory of PZU84-B3V6-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-B3V6-QR is usually 5 days.
3.What payment methods are accepted for PZU84-B3V6-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-B3V6-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-B3V6-QR?
PZU84-B3V6-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-B3V6-QR 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 PZU84-B3V6-QR?
For technical support, including PZU84-B3V6-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-B3V6-QR requirements.
6.How does Aetrix verify that PZU84-B3V6-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-B3V6-QR 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 PZU84-B3V6-QR meets industry standards.
7.What is the process for return or replacement of PZU84-B3V6-QR?
All PZU84-B3V6-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-B3V6-QR, 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 PZU84-B3V6-QR part is unused and in its original packaging.
Return procedure for PZU84-B3V6-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-B3V6-QR Tags
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