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Nexperia USA Inc. PZU84-C12-QR
- Part No.:
- PZU84-C12-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C12-QR.pdf
- Description:
- DIODE ZENER 12.01V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,266
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Product details
Overview
PZU84-C12-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode with nominal 12 V breakdown voltage, 9 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive use in power rail stabilization and reference circuits.
For engineers reviewing the PZU84-C12-QR datasheet, PZU84-C12-QR pinout, PZU84-C12-QR application, or PZU84-C12-QR equivalent, this page delivers verified electrical parameters, SOT23 terminal mapping, automotive-grade thermal limits, and validated alternative Zeners for precision voltage clamping and regulation.
Technical Context
This Zener operates in reverse-biased breakdown mode to maintain stable 12 V across its cathode-anode terminals under varying load currents from 0.1 μA to 200 mA. Its hard breakdown knee and low leakage (≤0.1 μA at VR = 10 V) support accurate voltage referencing in low-power sensor interfaces.
The device uses silicon planar technology with a junction temperature range of −55 °C to +150 °C and exhibits a positive temperature coefficient of +6.0 mV/K at IZ = 5 mA, enabling predictable drift compensation in temperature-sensitive designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 11.42 V to 12.60 V at IZ = 5 mA - defines tight regulation window for 12 V rail supervision |
| Differential Resistance rdif | 80 Ω at IZ = 5 mA - determines output impedance and load regulation error |
| Reverse Leakage IR | ≤0.1 μA at VR = 10 V - ensures minimal quiescent current in standby circuits |
| Power Dissipation Ptot | 250 mW on FR4 PCB - sets maximum continuous DC power handling without heatsinking |
| Junction Temperature Tj | −55 °C to +150 °C - enables operation in under-hood automotive environments |
| Thermal Resistance Rth(j-a) | 500 K/W in free air - informs derating curves for ambient temperature design margins |
| Non-repetitive Peak Power | 40 W for tp = 100 μs - supports transient overvoltage suppression in CAN/LIN bus protection |
Pinout & Package
Supplied in SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), with standardized footprint per Figure 10 (reflow) and Figure 11 (wave soldering).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connected to lower-potential node in Zener bias configuration |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 | Cathode (K) | Reverse-bias terminal; connects to regulated voltage node and current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % VZ tolerance | Enables single-bin selection for high-accuracy 12 V references without post-production trimming |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics requiring zero-failure reliability over 15-year service life |
| Hard breakdown knee | Ensures sharp transition into regulation, minimizing voltage uncertainty during turn-on in reset supervisor circuits |
| Low dynamic impedance | 80 Ω at 5 mA maintains <1% output deviation across 1–10 mA load steps in feedback loops |
| 105 pF capacitance at 1 MHz | Supports RF noise filtering in microcontroller I/O protection while preserving signal integrity up to 10 MHz |
Applications
| Automotive ECU Power Supervision | Industrial Sensor Reference |
|---|---|
Use Scenario: Monitoring 12 V battery rail in engine control units to trigger brown-out reset before MCU malfunction. IC Role / Device Role / Timing Role: Zener acts as precision voltage threshold detector feeding comparator input. Use Value: Tight 11.42–12.60 V tolerance ensures reset activation within 100 ms of rail collapse, meeting ISO 16750-2 pulse 4 requirements. | Use Scenario: Providing stable 12 V reference for 16-bit ADC in pressure transducer signal conditioning. IC Role / Device Role / Timing Role: Zener supplies low-noise bias to op-amp reference input stage. Use Value: ≤0.1 μA leakage prevents offset drift in high-impedance divider networks, maintaining <0.05% full-scale error. |
| USB-C PD Port Protection | Smart Lighting Driver Regulation |
Use Scenario: Clamping transient surges on 12 V auxiliary power line in USB-C power delivery adapters. IC Role / Device Role / Timing Role: Zener absorbs 40 W non-repetitive pulses (100 μs) during ESD events. Use Value: 40 W peak power rating handles IEC 61000-4-2 Level 4 (15 kV air) without degradation, extending surge lifetime beyond 10,000 strikes. | Use Scenario: Regulating gate drive voltage for MOSFETs in constant-current LED drivers. IC Role / Device Role / Timing Role: Zener stabilizes 12 V bootstrap supply against input ripple in buck-boost topology. Use Value: 80 Ω dynamic impedance limits output variation to ±0.08 V across 5–50 mA load changes, ensuring consistent LED brightness. |
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-C12-TP | ±5 % tolerance, 100 Ω rdif at 5 mA, no AEC-Q101 qualification | Suitable for consumer-grade power rails where cost outweighs automotive reliability | Select when BOM cost reduction is prioritized over long-term stability in harsh environments |
| MMSZ5242B-TP | ±5 % tolerance, 33 Ω rdif at 20 mA, 500 mW Ptot, no AEC-Q101 | Better regulation at higher currents but lacks automotive qualification and low-leakage performance | Choose only for industrial prototypes requiring tighter rdif at >10 mA, with external qualification testing |
Compared with PZU84-C12-QR, BZX84-C12-TP trades AEC-Q101 compliance and 0.1 μA leakage for lower unit cost, while MMSZ5242B-TP offers lower dynamic impedance at higher test currents but requires revalidation for automotive thermal cycling and humidity exposure.
Availability
PZU84-C12-QR is available at Aetrix Electronics and suitable for automotive ECU power supervision, industrial sensor reference, and USB-C PD port protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for PZU84-C12-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-enhancing components, delivering high-performance, reliable devices for automotive, industrial, and consumer markets.
The PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient suppression in automotive power systems and safety-critical subsystems.
FAQ
What is the maximum continuous forward current for PZU84-C12-QR?
The device is not rated for continuous forward conduction; its absolute maximum forward current is 200 mA under pulsed conditions (tp ≤ 300 μs, duty cycle ≤ 2 %). In normal Zener operation, forward bias is avoided-only reverse breakdown is used for regulation. Forward voltage is specified at 10 mA (VF ≤ 0.9 V) solely for characterization, not functional use.
Does PZU84-C12-QR support bidirectional transient protection?
No-it is a unidirectional Zener diode optimized for reverse-bias regulation only. Its anode is not designed to clamp positive transients; for bidirectional protection, a TVS diode such as PESD5V0S1BA should be used instead. The n.c. pin does not enable symmetrical behavior, and forward conduction degrades long-term stability.
How does the 12 V temperature coefficient affect accuracy over −40 °C to +125 °C?
With a typical SZ of +6.0 mV/K at IZ = 5 mA, the Zener voltage shifts approximately +1.0 V across that range. For applications requiring <1 % total error, active compensation (e.g., thermistor network) or operating at fixed IZ with thermal derating is required. Data sheet Fig. 4 confirms linear drift behavior within this range.
Can PZU84-C12-QR replace older PZU84-C12 variants without layout changes?
Yes-PZU84-C12-QR shares identical SOT23 package dimensions, pinout (Anode–n.c.–Cathode), thermal footprint, and soldering profiles with prior PZU84-C12 versions. The "QR" suffix denotes tape-and-reel packaging with updated AEC-Q101 test reporting; electrical characteristics and reliability data are fully backward-compatible.
PZU84-C12-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):
- 12.01 V
- Tolerance:
- ±4.91%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.1 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-C12-QR FAQ
1.How can I place an order for PZU84-C12-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C12-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-C12-QR reliable?
The price and inventory of PZU84-C12-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-C12-QR is usually 5 days.
3.What payment methods are accepted for PZU84-C12-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C12-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C12-QR?
PZU84-C12-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C12-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-C12-QR?
For technical support, including PZU84-C12-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C12-QR requirements.
6.How does Aetrix verify that PZU84-C12-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-C12-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-C12-QR meets industry standards.
7.What is the process for return or replacement of PZU84-C12-QR?
All PZU84-C12-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C12-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-C12-QR part is unused and in its original packaging.
Return procedure for PZU84-C12-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C12-QR Tags
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