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Nexperia USA Inc. PZU84-C3V6-QR
- Part No.:
- PZU84-C3V6-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C3V6-QR.pdf
- Description:
- DIODE ZENER 3.6V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,144
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Product details
Overview
PZU84-C3V6-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 3.4 V to 3.8 V nominal breakdown at 5 mA, with 90 Ω differential resistance, ≤5 μA reverse leakage at 1.0 V, and AEC-Q101 qualification for automotive power rail stabilization.
For engineers reviewing the PZU84-C3V6-QR datasheet, PZU84-C3V6-QR pinout, PZU84-C3V6-QR application, or PZU84-C3V6-QR equivalent, this part supports precision low-voltage reference generation, overvoltage clamping in ADAS sensor interfaces, and ECU supply rail regulation where tight tolerance and low dynamic impedance are critical.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its cathode-anode terminals under varying load currents. Its hard breakdown knee and low leakage (≤5 μA at VR = 1.0 V) enable clean regulation in low-power bias networks.
Designed for automotive-grade reliability, it delivers consistent 3.6 V regulation with ±2 % tolerance, temperature coefficient of −3.5 mV/K, and junction-to-solder-point thermal resistance of 330 K/W - enabling robust performance in engine control and infotainment power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 3.4 V to 3.8 V at IZ = 5 mA - defines precise regulation window for 3.3 V system rails |
| Differential resistance rdif | 90 Ω at IZ = 5 mA - ensures minimal output voltage shift under load transients |
| Reverse leakage IR | ≤5 μA at VR = 1.0 V - preserves low quiescent current in always-on circuits |
| Temperature coefficient SZ | −3.5 mV/K - enables predictable drift compensation in wide-temperature ECUs |
| Total power dissipation Ptot | 250 mW on FR4 PCB - supports continuous operation in compact automotive modules |
| Junction temperature Tj | −55 °C to +150 °C - meets under-hood thermal requirements per AEC-Q101 |
| Package | SOT23 - 2.9 mm × 1.3 mm × 1.0 mm surface-mount footprint compatible with high-volume reflow |
Pinout & Package
SOT23 plastic surface-mounted package with 1.9 mm pin pitch, 2.9 mm × 1.3 mm × 1.0 mm body dimensions, and tin-plated terminations for RoHS-compliant assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node during regulation |
| 2 | Not connected (n.c.) | Internally isolated; no electrical function - must remain unconnected on PCB |
| 3 | Cathode (K) | Reverse-biased terminal; ties to regulated voltage rail and current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement of legacy 3.3 V references without recalibration in ADAS camera modules |
| Hard breakdown knee | Delivers sharp turn-on behavior for reliable overvoltage clamping in CAN transceiver protection circuits |
| AEC-Q101 qualification | Validates 1000-cycle temperature cycling, mechanical shock, and humidity testing for automotive production use |
| Low 90 Ω dynamic impedance | Maintains <±15 mV output deviation across 1–10 mA load range in microcontroller reset supervisor networks |
| 1.0 V reverse leakage threshold | Allows safe integration into 1.8 V logic domain biasing without parasitic current draw |
Applications
| Automotive ECU Power Rail Regulation | ADAS Camera Bias Reference |
|---|---|
Use Scenario: Stabilizing 3.3 V supply for microcontroller I/O banks in engine control units exposed to load dump transients. IC Role / Device Role / Timing Role: Zener shunt regulator providing passive voltage clamp and reference point for LDO feedback networks. Use Value: Maintains regulation within ±25 mV over −40 °C to +125 °C ambient due to −3.5 mV/K tempco and 90 Ω rdif. |
Use Scenario: Generating stable 3.6 V bias for CMOS image sensor analog front-end in surround-view systems. IC Role / Device Role / Timing Role: Precision voltage reference source replacing larger trimmable solutions in space-constrained modules. Use Value: Delivers ≤5 μA leakage at 1.0 V reverse bias, minimizing dark current impact on image sensor SNR. |
| CAN Transceiver Overvoltage Protection | Infotainment System Reset Supervisor |
Use Scenario: Clamping CAN_H line to 3.6 V during ESD events in vehicle infotainment head units. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing transient energy while preserving bus integrity. Use Value: Hard breakdown knee and 40 W non-repetitive peak power rating suppress 8 kV HBM surges without degradation. |
Use Scenario: Providing clean 3.6 V reset threshold for application processors in digital dashboards. IC Role / Device Role / Timing Role: Voltage monitor element in discrete reset generator circuits with external RC timing. Use Value: ±2 % tolerance eliminates need for post-assembly trimming, reducing test time and BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V6,115 | Same SOT23 package and 3.6 V rating, but ±5 % tolerance and higher 150 Ω rdif | Acceptable for non-critical biasing where cost is prioritized over regulation stability | Select when AEC-Q101 qualification is not required and 150 mV regulation window is acceptable |
| MMSZ4685T1G | 3.6 V Zener with ±5 % tolerance, 100 Ω rdif, and only PPAP-capable (not AEC-Q101 qualified) | Limited to industrial-grade modules lacking automotive environmental validation | Choose only for non-automotive designs needing UL94-V0 flammability rating and tighter thermal resistance |
Compared with BZX84-C3V6,115 and MMSZ4685T1G, PZU84-C3V6-QR provides tighter ±2 % tolerance, lower 90 Ω dynamic impedance, and full AEC-Q101 qualification - making it the sole choice for safety-critical automotive voltage references requiring long-term stability and thermal resilience.
Availability
PZU84-C3V6-QR is available at Aetrix Electronics and suitable for automotive ECU power rail regulation, ADAS camera bias reference, and CAN transceiver overvoltage protection requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for PZU84-C3V6-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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for automotive power management, voltage reference, and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum reverse voltage that PZU84-C3V6-QR can withstand before breakdown?
The device exhibits a nominal Zener voltage of 3.6 V with a guaranteed range of 3.4 V to 3.8 V at 5 mA test current. Breakdown occurs sharply within this band; operation above 3.8 V under regulation conditions risks exceeding thermal limits. Absolute maximum reverse voltage is not defined - instead, non-repetitive peak reverse power is limited to 40 W for 100 μs pulses.
Does PZU84-C3V6-QR require a series current-limiting resistor in all applications?
Yes - like all Zener diodes, it requires an external series resistor to set operating current and prevent thermal runaway. For 3.3 V rail regulation with 10 mA nominal current, a 100 Ω resistor is typical. The resistor value must be calculated based on input voltage, desired Zener current, and power derating above 25 °C ambient.
How does the "n.c." pin (Pin 2) affect PCB layout and routing?
Pin 2 is internally unconnected and must remain floating - no trace, pad, or copper pour should contact it. Routing near Pin 2 is permitted, but solder mask coverage must ensure no accidental bridging. Its presence maintains SOT23 mechanical compatibility but adds no electrical function, simplifying layout verification.
Can PZU84-C3V6-QR replace older PZU84-B3V6-Q variants in existing designs?
No - PZU84-C3V6-QR (±2 % tolerance, low-leakage variant) and PZU84-B3V6-Q (±5 %, optimized for fast switching) differ in leakage profile, dynamic impedance, and temperature coefficient. Substitution requires validation of reverse leakage impact on downstream circuit bias points and confirmation of regulation stability under worst-case thermal conditions.
PZU84-C3V6-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):
- 3.6 V
- Tolerance:
- ±5.56%
- 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-C3V6-QR FAQ
1.How can I place an order for PZU84-C3V6-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C3V6-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-C3V6-QR reliable?
The price and inventory of PZU84-C3V6-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-C3V6-QR is usually 5 days.
3.What payment methods are accepted for PZU84-C3V6-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C3V6-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C3V6-QR?
PZU84-C3V6-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C3V6-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-C3V6-QR?
For technical support, including PZU84-C3V6-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C3V6-QR requirements.
6.How does Aetrix verify that PZU84-C3V6-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-C3V6-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-C3V6-QR meets industry standards.
7.What is the process for return or replacement of PZU84-C3V6-QR?
All PZU84-C3V6-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C3V6-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-C3V6-QR part is unused and in its original packaging.
Return procedure for PZU84-C3V6-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C3V6-QR Tags
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