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Nexperia USA Inc. PZU84-C3V6R
- Part No.:
- PZU84-C3V6R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C3V6R.pdf
- Description:
- DIODE ZENER 3.6V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,501
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Product details
Overview
PZU84-C3V6R from Nexperia is a general-purpose Zener voltage regulator diode in SOT23 package, providing precise 3.6 V nominal regulation at 5 mA with ±2 % tolerance, 90 Ω differential resistance, and 1.0 μA reverse current at 1.0 V. It operates across −55 °C to +150 °C ambient, delivering stable reference voltage for low-power analog circuits and power rail clamping in consumer and industrial electronics.
For engineers reviewing the PZU84-C3V6R datasheet, PZU84-C3V6R pinout, PZU84-C3V6R application, or PZU84-C3V6R equivalent, key selection criteria include its tight 3.6 V Zener voltage tolerance, low 90 Ω dynamic impedance at 5 mA, minimal 1.0 μA leakage at VR = 1.0 V, hard breakdown knee characteristic, and SOT23 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode belongs to the PZU84-C subseries optimized for very low dynamic impedance and ultra-low leakage current, enabling sharp breakdown characteristics ideal for precision voltage referencing and noise-sensitive signal conditioning. Its −3.5 mV/K temperature coefficient at 5 mA ensures predictable drift behavior over temperature.
The device uses silicon planar technology with an anode-cathode configuration and features a non-connected terminal (Pin 2), allowing flexible PCB routing while maintaining thermal performance via cathode-tab solder point (Rth(j–sp) = 330 K/W). It supports non-repetitive surge handling up to 40 W for 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.40 V to 3.80 V at IZ = 5 mA - defines tight 3.6 V nominal regulation window for accurate voltage reference |
| Differential Resistance rdif | 90 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load changes |
| Reverse Current IR | 1.0 μA max at VR = 1.0 V - enables low-power standby operation without excessive quiescent drain |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - supports efficient forward-bias use in protection or logic-level translation |
| Total Power Dissipation Ptot | 250 mW at Tamb = 25 °C - sets continuous operating limit on standard FR4 PCB with 70 μm copper |
| Junction Temperature Tj | −55 °C to +150 °C - guarantees reliable operation in extended-temperature industrial environments |
| Package | SOT23 - 2.9 mm × 1.3 mm × 1.0 mm surface-mount outline compatible with automated assembly |
Pinout & Package
SOT23 plastic surface-mounted package with 3 terminals, 1.9 mm pitch, and body dimensions of 2.9 mm × 1.3 mm × 1.0 mm. Thermal path optimized via cathode tab solder point (Rth(j–sp) = 330 K/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-current entry point; connects to lower-potential node in reverse-bias regulation mode |
| 2 | Not Connected (n.c.) | Internally unconnected; allows routing flexibility without electrical impact or thermal penalty |
| 3 | Cathode (K) | Regulated output node in reverse bias; primary thermal conduction path to PCB via solder point |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement in precision 3.6 V reference designs without calibration adjustment |
| Hard breakdown knee | Delivers abrupt, repeatable turn-on behavior critical for overvoltage clamp reliability |
| Very low leakage (1.0 μA @ 1.0 V) | Minimizes parasitic current draw in battery-powered or always-on monitoring circuits |
| Low differential impedance (90 Ω) | Maintains regulation stability under varying load currents typical in sensor interface rails |
| Optimized thermal resistance (Rth(j–sp) = 330 K/W) | Supports sustained 250 mW dissipation on standard PCB without heatsinking |
Applications
| Power Rail Clamping | Reference Voltage Source |
|---|---|
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage during hot-plug or ESD events. IC Role / Device Role / Timing Role: Shunt regulator clamping rail to 3.6 V before damage threshold is exceeded. Use Value: Leverages hard breakdown knee and 40 W surge rating to absorb 100 μs transients without degradation. |
Use Scenario: Providing stable 3.6 V reference for ADC biasing in portable medical sensors. IC Role / Device Role / Timing Role: Precision voltage reference with low tempco (−3.5 mV/K) and minimal drift. Use Value: Tight ±2 % tolerance and 90 Ω rdif ensure <10 mV error across 100 μA–5 mA load range. |
| Signal Level Translation | Low-Power Voltage Monitoring |
Use Scenario: Converting 5 V logic signals to 3.6 V-compatible levels for mixed-voltage FPGA I/O banks. IC Role / Device Role / Timing Role: Forward-biased Zener used as voltage dropper with predictable 0.9 V drop at 10 mA. Use Value: Low VF tolerance and SOT23 size enable compact, low-heat-drop level-shifting per channel. |
Use Scenario: Detecting brown-out conditions on 3.3 V system rails using comparator input biasing. IC Role / Device Role / Timing Role: Reference node for comparator hysteresis setting with ultra-low leakage. Use Value: 1.0 μA max IR at 1.0 V prevents false triggering in high-impedance sensing networks. |
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 | Same 3.6 V nominal, ±5 % tolerance, higher 250 Ω rdif, 5 μA IR @ 1 V | Less precise regulation; suitable where cost outweighs accuracy | Select when ±5 % tolerance and relaxed dynamic impedance are acceptable for non-critical rails |
| MMSZ4685 | 3.6 V nominal, ±5 %, 150 Ω rdif, 10 μA IR @ 1 V, SOD-123 package | Larger footprint, higher leakage, less stable tempco (−2.5 mV/K) | Choose only if SOD-123 layout compatibility is mandatory and thermal margin exceeds 330 K/W |
Compared with BZX84-C3V6 and MMSZ4685, PZU84-C3V6R delivers superior regulation accuracy, lower dynamic impedance, and significantly reduced leakage-making it optimal for precision reference and low-power monitoring where SOT23 space constraints apply.
Availability
PZU84-C3V6R is available at Aetrix Electronics and suitable for power rail clamping, reference voltage sourcing, and low-power voltage monitoring requiring stable component supply across industrial control, portable instrumentation, and IoT edge nodes.
Supply support for PZU84-C3V6R 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
PZU84-C3V6R belongs to the PZU84 series of general-purpose Zener diodes engineered for precision voltage regulation in space-constrained, thermally demanding applications-emphasizing low leakage, sharp breakdown, and robust surge capability.
FAQ
What is the maximum continuous power dissipation for PZU84-C3V6R on a standard PCB?
The PZU84-C3V6R has a total power dissipation limit of 250 mW at Tamb = 25 °C when mounted on a FR4 PCB with single-sided 70 μm copper, tin-plated, and standard SOT23 footprint. Derating is required above 25 °C ambient per the Rth(j–a) = 500 K/W thermal resistance.
Does Pin 2 have any internal connection or function?
No-Pin 2 is explicitly designated as "not connected" (n.c.) in the official Nexperia datasheet. It is electrically isolated and serves only as a mechanical placeholder in the SOT23 package; no routing or grounding is required or recommended.
How does the temperature coefficient affect regulation accuracy over industrial temperature ranges?
At IZ = 5 mA, PZU84-C3V6R exhibits a temperature coefficient of −3.5 mV/K. Over −40 °C to +85 °C, this results in approximately ±210 mV drift from nominal 3.6 V-within acceptable bounds for non-precision references but requires compensation in high-accuracy systems.
Can PZU84-C3V6R be used in forward-bias applications?
Yes-its forward voltage is specified at 0.9 V max at 10 mA, making it suitable for low-drop level translation or LED current limiting. However, it is not optimized for continuous forward conduction; thermal limits still apply based on Ptot = 250 mW.
PZU84-C3V6R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PZU84
- 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%
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PZU84-C3V6R FAQ
1.How can I place an order for PZU84-C3V6R through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C3V6R 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-C3V6R reliable?
The price and inventory of PZU84-C3V6R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C3V6R is usually 5 days.
3.What payment methods are accepted for PZU84-C3V6R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C3V6R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C3V6R?
PZU84-C3V6R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C3V6R 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-C3V6R?
For technical support, including PZU84-C3V6R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C3V6R requirements.
6.How does Aetrix verify that PZU84-C3V6R is sourced from the original manufacturer or authorized distributors?
All PZU84-C3V6R 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-C3V6R meets industry standards.
7.What is the process for return or replacement of PZU84-C3V6R?
All PZU84-C3V6R units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C3V6R, 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-C3V6R part is unused and in its original packaging.
Return procedure for PZU84-C3V6R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C3V6R Tags
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