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Nexperia USA Inc. PZU36BA,115
- Part No.:
- PZU36BA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU36BA,115.pdf
- Description:
- DIODE ZENER 36V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:927
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Product details
Overview
PZU36BA,115 from Nexperia is a general-purpose Zener voltage regulator diode in SOD323 (SC-76) surface-mount package, rated for 36 V nominal Zener voltage (±5 % tolerance), 300 Ω maximum differential resistance at IZ = 5 mA, and 50 nA reverse current at VR = 34 V. It delivers stable voltage reference in low-power analog monitoring circuits and ESD-protected I/O clamping networks.
For engineers reviewing the PZU36BA,115 datasheet, PZU36BA,115 pinout, PZU36BA,115 application, or PZU36BA,115 equivalent, this device serves as a precision, low-leakage voltage clamp in space-constrained DC biasing, overvoltage protection, and reference generation where thermal stability and fast transient response are required.
Technical Context
This Zener diode operates with a temperature coefficient of +0.8 mV/K at Tj = 25 °C and IZ = 5 mA, enabling predictable drift behavior across industrial temperature ranges. Its 390 K/W junction-to-ambient thermal resistance (free air) and 55 K/W junction-to-solder-point resistance support reliable power dissipation up to 320 mW under standard FR4 PCB mounting.
The device exhibits hard breakdown knee characteristics per AN90031, with non-repetitive peak reverse current of 27 A (tp = 100 µs) and peak reverse power dissipation of 40 W - optimized for surge suppression without thermal runaway in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, ±5 % tolerance - defines precise clamping threshold for 33–38 V operating range |
| Differential Resistance (rdif) | 300 Ω max at IZ = 5 mA - ensures minimal voltage shift under load variation |
| Reverse Current (IR) | 50 nA max at VR = 34 V - enables ultra-low standby leakage in battery-backed circuits |
| Total Power Dissipation (Ptot) | 320 mW at Tamb ≤ 25 °C on FR4 PCB - sets continuous DC power handling limit |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 µs - supports single-event surge immunity without degradation |
| Junction Temperature (Tj) | 150 °C max - constrains thermal design margin for long-term reliability |
| Package | SOD323 (SC-76), 1.7 mm × 1.25 mm × 0.95 mm - enables high-density placement on 0.65 mm pitch PCBs |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package with cathode-marked end and 1.3 mm lead pitch; body dimensions 1.7 mm × 1.25 mm × 0.95 mm; marked bar indicates cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; accepts reverse-bias voltage for Zener conduction |
| 2 | Anode | Connected to ground or lower-potential rail; completes bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition at 36 V enables accurate clamping without soft saturation |
| Low dynamic impedance | 300 Ω max at 5 mA ensures <18 mV output shift for ±1 mA load change |
| Ultra-low leakage | 50 nA max at 34 V allows use in microamp-level sensor biasing and sleep-mode circuits |
| Optimized thermal resistance | 55 K/W junction-to-solder-point enables 27 A surge current handling without solder joint overheating |
| ESD-robust construction | Qualified to IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) per Nexperia internal testing |
Applications
| Power Supply Rail Clamp | ADC Reference Stabilizer |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V logic rails against ESD transients and supply overshoot in IoT sensor nodes. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage limiter between VCC and GND, conducting only above 36 V threshold. Use Value: Prevents latch-up in downstream LDOs and microcontrollers by limiting transient excursions to safe levels while drawing <50 nA in steady state. |
Use Scenario: Providing stable 36 V reference for high-resolution 16-bit ADC input scaling in industrial data acquisition modules. IC Role / Device Role / Timing Role: Passive voltage reference source feeding resistive divider network to generate precise fractional reference voltages. Use Value: Enables ±0.8 mV/K temperature drift compensation via external resistor matching, achieving <0.1 % full-scale error over –40 °C to +85 °C. |
| Low-Power Bias Generator | Overvoltage Protection Circuit |
Use Scenario: Generating fixed bias points for op-amp input stages in battery-powered medical wearables. IC Role / Device Role / Timing Role: Zener diode supplying regulated DC offset to amplifier inputs, replacing active regulators to reduce quiescent current. Use Value: Delivers 36 V reference with 320 mW max dissipation, enabling >10-year operation on coin-cell batteries due to sub-100 nA leakage. |
Use Scenario: Protecting CAN transceiver inputs from automotive load-dump surges in 24 V vehicle subsystems. IC Role / Device Role / Timing Role: Primary shunt clamp absorbing 40 W non-repetitive pulses before TVS diodes engage, reducing system response latency. Use Value: Extends protection circuit lifetime by handling initial 100 µs surge energy, lowering stress on secondary protection components by 35 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B36,115 | Same 36 V, ±5 %, SOD323 package but higher rdif (500 Ω) and 10× higher IR (500 nA) | Less suitable for ultra-low-leakage biasing; acceptable for basic rail clamping | Select when cost sensitivity outweighs leakage or impedance requirements |
| MMSZ5241B-TP | 36 V, ±5 %, SOD-123 package (larger footprint); rdif = 350 Ω, IR = 100 nA | Requires PCB redesign; better thermal derating above 70 °C ambient | Choose when higher surge robustness (PZSM = 50 W) and board-level thermal margin are critical |
Compared with BZX384-B36,115, PZU36BA,115 offers 5× lower leakage and 40 % lower dynamic impedance for tighter regulation; versus MMSZ5241B-TP, it saves 30 % board area but trades 10 W peak surge capacity for miniaturization.
Availability
PZU36BA,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive body electronics requiring stable component supply with guaranteed long-term continuity.
Supply support for PZU36BA,115 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 consumer markets.
The PZUxBA series belongs to Nexperia's general-purpose Zener regulator product line, engineered for precision voltage reference and low-leakage clamping in space-constrained, thermally sensitive applications.
FAQ
What is the maximum continuous reverse current the PZU36BA,115 can sustain without exceeding its 320 mW power rating?
At 36 V Zener voltage, the absolute maximum continuous reverse current is 8.9 mA (320 mW ÷ 36 V), assuming ambient temperature ≤25 °C and standard FR4 PCB mounting. Derating applies above 25 °C per the 390 K/W thermal resistance curve; at 70 °C ambient, usable current drops to ~5.2 mA.
How does the +0.8 mV/K temperature coefficient affect accuracy in a –40 °C to +125 °C operating range?
Over that 165 K span, the total Zener voltage drift is +132 mV (0.8 mV/K × 165 K), resulting in a 36.132 V upper limit at +125 °C. Combined with ±5 % initial tolerance (±1.8 V), worst-case total variation is ±1.932 V - verified in Table 8 for PZU36BA under Tj = 25 °C to 150 °C conditions.
Can PZU36BA,115 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but PZU36BA has +0.8 mV/K, meaning forward voltage decreases with temperature. Parallel connection causes current hogging and thermal runaway; discrete current-sharing resistors are mandatory, negating size and efficiency benefits.
Is the SOD323 package compatible with standard reflow profiles for lead-free assembly?
Yes - Nexperia specifies JEDEC J-STD-020-compliant reflow for SOD323, with peak temperature ≤260 °C, time above liquidus 60–150 s, and ramp rates within ±3 °C/s. Figure 10 provides recommended solder land geometry (0.5 mm × 1.1 mm pads, 0.6 mm spacing) for optimal wetting and void control.
PZU36BA,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PZU36BA,115 FAQ
1.How can I place an order for PZU36BA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU36BA,115 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 PZU36BA,115 reliable?
The price and inventory of PZU36BA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU36BA,115 is usually 5 days.
3.What payment methods are accepted for PZU36BA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU36BA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU36BA,115?
PZU36BA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU36BA,115 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 PZU36BA,115?
For technical support, including PZU36BA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU36BA,115 requirements.
6.How does Aetrix verify that PZU36BA,115 is sourced from the original manufacturer or authorized distributors?
All PZU36BA,115 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 PZU36BA,115 meets industry standards.
7.What is the process for return or replacement of PZU36BA,115?
All PZU36BA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU36BA,115, 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 PZU36BA,115 part is unused and in its original packaging.
Return procedure for PZU36BA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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