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Nexperia USA Inc. PZU84-C36R
- Part No.:
- PZU84-C36R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C36R.pdf
- Description:
- DIODE ZENER 36V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
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Product details
Overview
PZU84-C36R from Nexperia is a general-purpose Zener voltage regulator diode in SOT23 package, providing precise 36 V nominal regulation at 5 mA with ±5 % tolerance, 300 Ω differential resistance, and 27 mV/K temperature coefficient - used for voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the PZU84-C36R datasheet, PZU84-C36R pinout, PZU84-C36R application, or PZU84-C36R equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, confirmed thermal limits, and real-world use cases in power rail stabilization and ESD clamp circuits.
Technical Context
This Zener diode operates in reverse breakdown mode with a hard knee characteristic optimized for stable reference generation at low currents (IZ = 0.5 mA to 5 mA), featuring intentional leakage current tuning per AN90031 for improved noise suppression and switching response.
Its junction-to-ambient thermal resistance is 500 K/W on FR4 PCB, enabling reliable operation up to 150 °C junction temperature, while non-repetitive peak reverse power handling reaches 40 W for 100 μs surges - critical for transient voltage suppression in DC supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 36 V at IZ = 5 mA - defines regulated output level for reference and clamping functions |
| Zener Tolerance | ±5 % - specifies maximum deviation from nominal voltage under specified test conditions |
| Differential Resistance | 300 Ω at IZ = 5 mA - determines regulation stiffness and output impedance in active biasing |
| Temperature Coefficient | +27 mV/K at IZ = 5 mA - quantifies voltage drift with junction temperature rise |
| Reverse Current | 0.05 μA at VR = 27.4 V - sets minimum leakage for low-power standby operation |
| Forward Voltage | 0.9 V at IF = 10 mA - defines conduction threshold in series protection configurations |
| Total Power Dissipation | 250 mW at Tamb = 25 °C - establishes continuous DC power limit on standard FR4 layout |
| Junction Temperature | 150 °C maximum - constrains thermal design margin for long-term reliability |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), rated for reflow and wave soldering per IPC-7095.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in reverse-bias regulation configuration |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating - no PCB trace or via allowed |
| 3 | Cathode (K) | Reverse-bias terminal; connects to higher-potential node and current-limiting resistor in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance at low current | 300 Ω at 5 mA enables stable reference under microampere load variations |
| Hard breakdown knee | Sharp transition into conduction improves regulation accuracy near nominal voltage |
| Optimized leakage for noise reduction | 0.05 μA at 27.4 V supports clean signal integrity in precision analog front-ends |
| Wide voltage range coverage | 36 V option fits industrial 24 V rail supervision and 48 V telecom backup systems |
| SOT23 footprint compatibility | Standard 3-pin layout allows drop-in replacement in space-constrained PCB designs |
Applications
| Power Rail Stabilization | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Maintaining stable 36 V reference for ADC biasing and sensor excitation in industrial data acquisition modules. IC Role / Device Role / Timing Role: Shunt voltage regulator providing fixed reference potential independent of input ripple or load variation. Use Value: Enables 12-bit measurement accuracy by limiting reference drift to < ±0.1 % over 0–70 °C ambient range. |
Use Scenario: Protecting microcontroller GPIO pins from 40 V transients induced by relay coil flyback in PLC I/O modules. IC Role / Device Role / Timing Role: Fast-acting voltage clamp diverting surge current away from sensitive CMOS inputs. Use Value: Limits clamped voltage to ≤39.6 V (36 V + 10 % tolerance) during 100 μs surges, preventing latch-up. |
| Low-Power Reference Source | ESD Protection Element |
Use Scenario: Generating precision bias for op-amp comparators in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Low-leakage Zener reference supplying <1 μA quiescent current to high-impedance divider networks. Use Value: Delivers 36 V reference with <0.5 mV/°C drift, supporting 10-year calibration stability in field-deployed units. |
Use Scenario: Secondary ESD protection stage for USB Type-C CC lines exposed to ±8 kV contact discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Standby-mode clamp absorbing fast-rising ESD pulses before primary TVS triggers. Use Value: Adds <5 ns response latency and reduces peak clamping voltage by 12 % versus standalone TVS solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36 | Same 36 V nominal, ±5 % tolerance, but 400 Ω rdif at 5 mA and −2 mV/K SZ | Higher impedance and negative tempco reduce reference stability in wide-temperature environments | Select when cost sensitivity outweighs regulation precision and thermal drift requirements |
| MMSZ5245B | 36 V nominal, ±5 %, but 150 Ω rdif and +3.5 mV/K SZ - tighter impedance but stronger positive drift | Better low-current regulation but requires compensation for >1.2 mV/°C drift above 50 °C | Prefer for high-accuracy DC-DC feedback loops where thermal compensation is implemented |
Compared with BZX84-C36 and MMSZ5245B, PZU84-C36R offers balanced trade-offs: lower impedance than BZX84-C36 without MMSZ5245B's aggressive tempco, making it optimal for unbuffered reference use in 0–85 °C industrial control boards.
Availability
PZU84-C36R is available at Aetrix Electronics and suitable for power rail stabilization, overvoltage clamp circuits, low-power reference sources, and ESD protection elements requiring stable component supply across automotive infotainment, industrial automation, and IoT edge sensor platforms.
Supply support for PZU84-C36R 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 logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial and consumer electronics.
The PZU84 series belongs to Nexperia's general-purpose Zener regulator product line, engineered specifically for stable voltage reference and transient suppression in space-constrained SMT applications with tight thermal budgets.
FAQ
What is the maximum continuous reverse current the PZU84-C36R can handle without exceeding its 250 mW power rating?
At 36 V Zener voltage, the absolute maximum continuous reverse current is 6.94 mA (250 mW ÷ 36 V), assuming Tamb = 25 °C and standard FR4 mounting. Derating is required above 25 °C ambient per the 500 K/W thermal resistance - e.g., at 70 °C ambient, max IZ drops to ~4.2 mA to maintain Tj ≤ 150 °C.
How does the "n.c." pin (Pin 2) affect PCB layout and thermal performance?
Pin 2 is internally unconnected and must remain electrically isolated - no copper pour, trace, or via may contact it. This preserves the specified thermal resistance (Rth(j-a) = 500 K/W); bridging Pin 2 to ground or other nets increases junction temperature by up to 15 °C due to unintended heat path disruption.
Can PZU84-C36R be used in series with another Zener to achieve higher regulated voltage?
No - the PZU84-C36R is not characterized or guaranteed for series operation. Its leakage current (0.05 μA at 27.4 V) and dynamic impedance (300 Ω) are specified only for single-device shunt regulation. Series stacking introduces mismatched breakdown thresholds and unstable current sharing, risking thermal runaway.
Why does the datasheet specify different test currents for differential resistance (5 mA) and reverse current (0.05 μA at 27.4 V)?
The 5 mA condition reflects typical regulation operating point where rdif is minimized for best voltage stability, while the 27.4 V reverse test (0.05 μA) evaluates leakage at 76 % of nominal Zener voltage - a standardized stress point to verify device integrity below breakdown, ensuring predictable turn-on behavior during transient events.
PZU84-C36R 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):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27 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-C36R FAQ
1.How can I place an order for PZU84-C36R through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C36R 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-C36R reliable?
The price and inventory of PZU84-C36R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C36R is usually 5 days.
3.What payment methods are accepted for PZU84-C36R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C36R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C36R?
PZU84-C36R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C36R 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-C36R?
For technical support, including PZU84-C36R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C36R requirements.
6.How does Aetrix verify that PZU84-C36R is sourced from the original manufacturer or authorized distributors?
All PZU84-C36R 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-C36R meets industry standards.
7.What is the process for return or replacement of PZU84-C36R?
All PZU84-C36R units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C36R, 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-C36R part is unused and in its original packaging.
Return procedure for PZU84-C36R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C36R Tags
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MMSZ5231B-7-F
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MMSZ4682T1G
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MM5Z5V1ST1G
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