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NXP Semiconductors PZU3.3B2L,315
- Part No.:
- PZU3.3B2L,315
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
PZU3.3B2L,315.pdf
- Description:
- DIODE ZENER 3.3V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:138,731
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Product details
Overview
PZU3.3B2L from NXP Semiconductors is a single Zener diode in SOD882 ultra-small surface-mount package, designed for precision voltage regulation at 3.3 V nominal with ±2 % tolerance, 5 µA reverse current at 0.5 mA test current, and 95 Ω differential resistance at 5 mA - used in power supply feedback loops and reference circuits of automotive ECUs and industrial sensors.
For engineers reviewing the PZU3.3B2L datasheet, PZU3.3B2L pinout, PZU3.3B2L application, or PZU3.3B2L equivalent, key selection criteria include its AEC-Q101 qualification, 250 mW total power dissipation at 25 °C ambient, non-repetitive 40 W surge capability, and cathode-anode polarity marking on the SOD882 body.
Technical Context
The PZU3.3B2L operates as a two-terminal voltage reference device with fixed 3.3 V breakdown voltage, optimized for low-noise, stable regulation under DC and transient conditions. Its thermal resistance from junction to ambient is 500 K/W in free air and 250 K/W with 1 cm² cathode pad, supporting operation from −55 °C to +150 °C ambient.
It features a negative temperature coefficient of −2.4 mV/K at 5 mA, enabling predictable drift compensation in bias networks. The device requires reflow soldering only and is mounted on FR4 PCBs with standard tin-plated single-sided copper footprint per Figure 9.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.3 V ±2 % (tight tolerance enables accurate 3.3 V rail monitoring without external trimming) |
| Reverse Current (IR) | 5 µA max at VR = 2.65 V (low leakage preserves battery life in always-on sensor nodes) |
| Differential Resistance | 95 Ω max at IZ = 5 mA (stable regulation under load variation in feedback paths) |
| Total Power Dissipation | 250 mW at Tamb ≤25 °C (supports compact layout in space-constrained modules) |
| Non-repetitive Peak Power | 40 W for tp = 100 µs (withstands ESD and surge events in automotive CAN/LIN interfaces) |
| Junction Temperature | 150 °C max (enables use in under-hood automotive environments) |
| AEC-Q101 Qualified | Yes - qualified for automotive discrete semiconductor stress testing (reliability validation for Tier-1 suppliers) |
Pinout & Package
SOD882 leadless ultra-small plastic package (1.0 × 0.6 × 0.5 mm); cathode marked by bar on top surface; designed for reflow-only assembly on FR4 PCBs with standardized footprint per Figure 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity marker aligns with PCB silkscreen 'K' or band; must match feedback path direction in switching regulator ICs |
| 2 | Anode | Connected to ground or lower-potential rail; forms reference node with cathode for voltage clamping or bias generation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct use in 3.3 V LDO feedback without resistor divider calibration |
| AEC-Q101 qualification | Validates reliability for automotive power management modules operating at 125 °C junction |
| Low 5 µA IR at 0.5 mA test current | Minimizes quiescent current draw in battery-backed real-time clock circuits |
| 95 Ω dynamic impedance at 5 mA | Ensures <1 % output deviation across 1–10 mA load steps in precision references |
| SOD882 footprint compatibility | Matches industry-standard 0201-equivalent land pattern for automated placement and reflow |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for LIN bus transceiver biasing and microcontroller reset circuitry in door module ECUs. IC Role / Device Role / Timing Role: Zener reference providing stable 3.3 V threshold for POR and brown-out detection. Use Value: ±2 % tolerance ensures reset assertion within 3.23–3.37 V window across temperature, meeting ISO 16750-2 requirements. |
Use Scenario: Precision voltage clamp in 4–20 mA loop transmitter front-end for pressure sensor excitation. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant 3.3 V reference for DAC output stage. Use Value: 95 Ω rdif limits output error to <0.1 V under 1 mA load shift, preserving 12-bit linearity. |
| USB-C Power Delivery Monitor | Medical Wearable Battery Gauge |
Use Scenario: Overvoltage protection and reference for USB PD CC line voltage sensing in portable chargers. IC Role / Device Role / Timing Role: Clamping diode limiting CC pin voltage to 3.3 V during hot-plug transients. Use Value: 40 W non-repetitive peak power absorbs 100 µs surges without degradation, per USB-IF compliance tests. |
Use Scenario: Low-leakage reference for fuel gauge ADC in Bluetooth-enabled glucose monitors. IC Role / Device Role / Timing Role: Stable 3.3 V reference source for battery voltage measurement circuitry. Use Value: 5 µA IR at 2.65 V ensures <1 µA system leakage, extending shelf life beyond 12 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V3,115 | Same 3.3 V ±2 %, SOD323 package (1.7 × 1.3 × 0.9 mm), higher 350 mW Ptot, 100 Ω rdif | Larger footprint; less suitable for ultra-dense layouts but offers higher continuous power margin | Select when board space allows larger package and >300 mW steady-state dissipation is needed |
| MMSZ4685T1G | 3.3 V ±5 %, SOD-123 package (3.7 × 1.7 × 1.3 mm), 500 mW Ptot, 100 Ω rdif, no AEC-Q101 | Looser tolerance and non-automotive qualification; higher power rating but larger size | Choose for cost-sensitive industrial designs where ±5 % accuracy and non-automotive grade are acceptable |
Compared with BZX384-B3V3,115 and MMSZ4685T1G, the PZU3.3B2L delivers tighter voltage tolerance in the smallest footprint and is the only AEC-Q101-qualified option - making it optimal for space-constrained automotive modules requiring long-term stability and qualification traceability.
Availability
PZU3.3B2L is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and portable medical devices requiring stable component supply with full traceability and lifecycle continuity.
Supply support for PZU3.3B2L 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The PZUxBL series was developed to deliver AEC-Q101-qualified, ultra-miniature Zener diodes for voltage regulation in next-generation automotive control units and high-density portable electronics.
FAQ
What is the exact Zener voltage tolerance for PZU3.3B2L?
The PZU3.3B2L has a nominal Zener voltage of 3.3 V with a tolerance of ±2 %, verified per Table 8 of the NXP datasheet Rev. 01 (2008). This corresponds to a guaranteed breakdown range of 3.234 V to 3.366 V at 5 mA test current and 25 °C junction temperature. The 'B2' suffix explicitly denotes the ±2 % grade within the PZUxBL family.
Is PZU3.3B2L qualified for automotive applications?
Yes, the PZU3.3B2L is AEC-Q101 qualified, as confirmed in Section 8.1 of the official NXP product data sheet. This qualification covers stress testing for high-temperature operating life, temperature cycling, and humidity bias, making PZU3.3B2L suitable for use in automotive body electronics, infotainment power supplies, and ADAS sensor modules.
What is the maximum non-repetitive peak reverse current for PZU3.3B2L?
The PZU3.3B2L supports a non-repetitive peak reverse current (IZSM) of 8 A, specified for tp = 100 µs square-wave pulses with Tj = 25 °C prior to surge (Table 8, footnote [2]). This value is derived from its 40 W non-repetitive peak power rating and 3.3 V nominal Zener voltage, and is validated for transient suppression in LIN and CAN bus protection circuits.
Which package type does PZU3.3B2L use, and what are its dimensions?
The PZU3.3B2L uses the SOD882 leadless ultra-small plastic package, measuring 1.02 mm × 0.62 mm × 0.50 mm (length × width × height) per Figure 8. Its cathode is marked by a bar on the top surface, and it requires reflow soldering only - no hand-soldering or wave soldering is recommended per Section 11 of the datasheet.
What is the thermal resistance from junction to ambient for PZU3.3B2L in free air?
The thermal resistance from junction to ambient (Rth(j-a)) for PZU3.3B2L is 500 K/W in free air, as specified in Table 6 under condition [1][2]. When mounted on an FR4 PCB with a 1 cm² cathode pad, Rth(j-a) improves to 250 K/W. These values directly determine maximum allowable power dissipation before exceeding the 150 °C junction limit.
PZU3.3B2L,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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:
- DFN1006-2
PZU3.3B2L,315 FAQ
1.How can I place an order for PZU3.3B2L,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU3.3B2L,315 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 PZU3.3B2L,315 reliable?
The price and inventory of PZU3.3B2L,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU3.3B2L,315 is usually 5 days.
3.What payment methods are accepted for PZU3.3B2L,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU3.3B2L,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU3.3B2L,315?
PZU3.3B2L,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU3.3B2L,315 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 PZU3.3B2L,315?
For technical support, including PZU3.3B2L,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU3.3B2L,315 requirements.
6.How does Aetrix verify that PZU3.3B2L,315 is sourced from the original manufacturer or authorized distributors?
All PZU3.3B2L,315 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 PZU3.3B2L,315 meets industry standards.
7.What is the process for return or replacement of PZU3.3B2L,315?
All PZU3.3B2L,315 units undergo pre-shipment inspection (PSI). If there is an issue with PZU3.3B2L,315, 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 PZU3.3B2L,315 part is unused and in its original packaging.
Return procedure for PZU3.3B2L,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU3.3B2L,315 Tags
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