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Nexperia USA Inc. PZU84-B10-QR
- Part No.:
- PZU84-B10-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-B10-QR.pdf
- Description:
- DIODE ZENER 9.99V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,404
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Product details
Overview
PZU84-B10-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 10 V nominal breakdown voltage (9.45–10.55 V), 250 mW total power dissipation, and qualified to AEC-Q101 for automotive use. It delivers hard breakdown knee, low leakage current (<0.1 μA at VR = 7 V), and differential resistance of 60 Ω at IZ = 5 mA - deployed in precision voltage reference and overvoltage protection circuits within engine control units.
For engineers reviewing the PZU84-B10-QR datasheet, PZU84-B10-QR pinout, PZU84-B10-QR application, or PZU84-B10-QR equivalent, this page provides verified electrical parameters, automotive-grade thermal performance (Tj max = 150 °C), SOT23 terminal mapping, and validated alternatives for voltage regulation in harsh-environment embedded systems.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with tightly controlled VZ tolerance (±2 %) and exhibits a sharp, hard knee at nominal 10 V, enabling stable clamping in low-current bias networks. Its low dynamic impedance (60 Ω at 5 mA) ensures minimal voltage shift under load variation.
Designed per AEC-Q101, it supports ambient temperatures from −55 °C to +150 °C and features optimized leakage behavior for automotive ECU rail monitoring - with IR < 0.1 μA at VR = 7 V and junction-to-ambient thermal resistance of 500 K/W on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 10 V (range: 9.45–10.55 V); defines precise clamping threshold for 12 V rail stabilization |
| Zener Tolerance | ±2 %; enables high-accuracy voltage referencing without post-production trimming |
| Differential Resistance | 60 Ω at IZ = 5 mA; ensures <0.3 V deviation across ±1 mA load current change |
| Max Power Dissipation | 250 mW at Tamb = 25 °C; supports continuous operation in compact automotive PCB layouts |
| Reverse Leakage Current | <0.1 μA at VR = 7 V; minimizes quiescent current loss in always-on monitoring circuits |
| Junction Temperature Limit | 150 °C; certified for under-hood automotive environments per AEC-Q101 stress testing |
| Thermal Resistance (j-a) | 500 K/W; determines temperature rise of 125 K at full 250 mW dissipation on standard FR4 |
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 reflow assembly and space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Connected to lower-potential node (e.g., ground or signal return) during Zener operation |
| 2 (n.c.) | Not connected | Internally unconnected; must remain floating - no PCB trace or solder mask required |
| 3 (Cathode) | Cathode connection | Connected to regulated voltage rail; carries reverse current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables clean, repeatable voltage clamping at 10 V without soft turn-on drift |
| AEC-Q101 qualification | Validated for automotive Grade 0/1 reliability including HTGB, TC, AC/DC life test, and ESD HBM ≥2 kV |
| Low dynamic impedance | 60 Ω at 5 mA ensures <3 % output voltage variation across typical bias current range |
| Ultra-low leakage | <0.1 μA at VR = 7 V preserves battery runtime in always-on vehicle subsystems |
| E24 voltage coverage | Part of 34-value series spanning 2.4 V–51 V, supporting standardized BOM consolidation |
Applications
| Engine Control Unit (ECU) Reference | Infotainment Power Rail Clamp |
|---|---|
Use Scenario: Provides stable 10 V reference for analog sensor signal conditioning in diesel ECU mainboard. IC Role / Device Role / Timing Role: Zener voltage reference element in op-amp feedback network for throttle position sensor ADC front-end. Use Value: ±2 % VZ tolerance and 60 Ω rdif maintain <1 LSB error across −40 °C to +125 °C operating range. |
Use Scenario: Clamps transient spikes on 12 V infotainment supply rail caused by load dump events. IC Role / Device Role / Timing Role: Standby overvoltage protector placed between DC-DC converter output and SoC power input. Use Value: Withstands 40 W non-repetitive surge (tp = 100 μs) while limiting rail excursion to ≤13.5 V. |
| ADAS Camera Module Bias | Body Control Module (BCM) Wake-Up Circuit |
Use Scenario: Supplies regulated bias to image sensor analog front-end in rear-view camera PCB. IC Role / Device Role / Timing Role: Low-noise voltage reference for CCD/CMOS sensor biasing and clock driver ICs. Use Value: <0.1 μA leakage prevents false wake-up in sleep mode; 150 °C Tj rating supports sealed module thermal profile. |
Use Scenario: Generates reliable wake-up threshold in BCM low-power monitoring circuit detecting ignition key RF signal. IC Role / Device Role / Timing Role: Precision voltage detector element triggering MCU wake-up when 12 V rail exceeds 9.8 V. Use Value: Hard knee and ±2 % tolerance ensure consistent 100 ms response window across production lots and temperature. |
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-C10-TP | ±5 % tolerance; 100 Ω rdif at 5 mA; not AEC-Q101 qualified | Suitable only for non-automotive consumer PCBs with relaxed accuracy and reliability requirements | Select only if cost sensitivity outweighs automotive compliance and 10 V stability needs |
| MMSZ5240B-TP | ±5 % tolerance; 17 Ω rdif at 20 mA; TO-236AB package (larger footprint) | Higher power handling (500 mW) but lacks AEC-Q101 and exhibits softer knee above 15 mA | Prefer for industrial power supplies where board space allows and tighter rdif at higher current is critical |
Compared with BZX84-C10-TP and MMSZ5240B-TP, PZU84-B10-QR uniquely combines AEC-Q101 qualification, ±2 % tolerance, and hard-knee 10 V regulation in SOT23 - making it the sole choice for safety-critical automotive voltage references requiring zero post-calibration drift.
Availability
PZU84-B10-QR is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, and body control modules requiring stable component supply under automotive qualification and long-term lifecycle assurance.
Supply support for PZU84-B10-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and computing markets.
PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for precision voltage regulation and transient suppression in automotive electronic control units and safety-critical subsystems.
FAQ
What is the maximum reverse voltage before breakdown for PZU84-B10-QR?
The guaranteed breakdown voltage range is 9.45 V to 10.55 V at IZ = 5 mA and Tj = 25 °C. Below 9.45 V, reverse current remains <0.1 μA at VR = 7 V; breakdown is not defined below this minimum VZ, and operation outside the specified range risks unstable clamping or excessive leakage.
Can PZU84-B10-QR replace older PZU84-B10-Q parts in existing designs?
Yes - PZU84-B10-QR is a direct replacement for PZU84-B10-Q with identical electrical specs, SOT23 pinout, and AEC-Q101 qualification. The '-QR' suffix denotes enhanced traceability and packaging per Nexperia's 2024 quality revision; no layout or firmware changes are required.
How does the n.c. pin (Pin 2) affect PCB layout?
Pin 2 is internally unconnected and must remain electrically isolated - no copper trace, solder mask opening, or thermal pad should contact it. Standard SOT23 footprints (e.g., IPC-7351B) already exclude Pin 2 from solder land definition, ensuring manufacturability without design modification.
Is PZU84-B10-QR suitable for bidirectional ESD protection?
No - it is a unidirectional Zener diode optimized for reverse-bias voltage regulation only. Its forward voltage is 0.9 V at 10 mA, but it lacks symmetric clamping, low capacitance (<1 pF), or IEC 61000-4-2 rating required for ESD protection; dedicated TVS diodes like PESD5V0S1BA should be used instead.
PZU84-B10-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):
- 9.99 V
- Tolerance:
- ±2.2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 7.6 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-B10-QR FAQ
1.How can I place an order for PZU84-B10-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-B10-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-B10-QR reliable?
The price and inventory of PZU84-B10-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-B10-QR is usually 5 days.
3.What payment methods are accepted for PZU84-B10-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-B10-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-B10-QR?
PZU84-B10-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-B10-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-B10-QR?
For technical support, including PZU84-B10-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-B10-QR requirements.
6.How does Aetrix verify that PZU84-B10-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-B10-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-B10-QR meets industry standards.
7.What is the process for return or replacement of PZU84-B10-QR?
All PZU84-B10-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-B10-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-B10-QR part is unused and in its original packaging.
Return procedure for PZU84-B10-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-B10-QR Tags
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MMSZ5231B-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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