My Inquiry
My Account
Nexperia USA Inc. PZU3.0B2A,115
- Part No.:
- PZU3.0B2A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU3.0B2A,115.pdf
- Description:
- DIODE ZENER 3V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,774
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PZU3.0B2A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 3.0 V nominal working voltage at 5 mA, with differential resistance ≤95 Ω, reverse current ≤10 µA at 0.5 mA, and total power dissipation of 320 mW - used for precision low-voltage reference and overvoltage clamping in power supply feedback paths.
For engineers reviewing the PZU3.0B2A,115 datasheet, PZU3.0B2A,115 pinout, PZU3.0B2A,115 application, or PZU3.0B2A,115 equivalent, this device supports stable 3.0 V regulation under low-current conditions (IZ = 5 mA), features hard breakdown knee and low leakage, and is optimized for space-constrained DC-DC converter monitoring and microcontroller reset circuitry.
Technical Context
This Zener diode operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current when applied voltage exceeds its 3.0 V nominal Zener voltage. Its ±2 % tolerance (B2 series), 95 Ω max differential resistance at IZ = 5 mA, and −2.1 mV/K temperature coefficient define tight voltage stability across operating current and temperature ranges.
The device uses silicon planar epitaxial construction in a SOD323 package with cathode-anode polarity marked by a bar, enabling surface-mount integration into compact power rails. It sustains non-repetitive peak reverse power up to 40 W (tp = 100 µs) while limiting steady-state dissipation to 320 mW on FR4 PCB with standard footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.0 V at IZ = 5 mA - defines precise clamping threshold for 3.3 V rail protection and MCU brown-out detection |
| Zener Tolerance | ±2 % (B2 series) - ensures voltage accuracy within ±60 mV for reliable reference in feedback loops |
| Differential Resistance | ≤95 Ω at IZ = 5 mA - minimizes output voltage shift under load variation in regulation circuits |
| Reverse Current | ≤10 µA at VR = 0.5 × VZ - enables ultra-low standby leakage in battery-powered sensor nodes |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power | 40 W (tp = 100 µs) - supports transient surge suppression without failure during ESD or inductive kick events |
| Junction Temperature | −55 °C to +150 °C - permits operation in industrial ambient environments including automotive under-hood proximity |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated voltage node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition at 3.0 V improves regulation accuracy in low-current feedback networks |
| Low dynamic impedance | 95 Ω max at 5 mA ensures minimal voltage deviation under varying load currents in LDO monitor circuits |
| Ultra-low leakage | ≤10 µA at 1.5 V reverse bias preserves battery life in always-on IoT endpoint regulators |
| Small-outline packaging | SOD323 footprint (1.7 × 1.25 mm) enables high-density placement on compact PCBs for wearables and modules |
Applications
| Power Supply Feedback Regulation | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Stabilizing output voltage of isolated flyback or buck converter via optocoupler feedback loop. IC Role / Device Role / Timing Role: Shunt reference providing precise 3.0 V threshold to TL431-like comparator input. Use Value: ±2 % tolerance and 95 Ω dynamic impedance maintain ±0.1 V output accuracy across line/load variations. |
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU during 3.3 V rail startup and brown-out. IC Role / Device Role / Timing Role: Zener clamp holding reset line low until VCC reaches 3.0 V ±60 mV. Use Value: Hard breakdown knee ensures fast, deterministic release timing without hysteresis-induced delay. |
| ESD Protection Clamp | Reference Voltage Source |
Use Scenario: Protecting analog sensor inputs (e.g., thermistor ADC channel) from ±8 kV HBM transients. IC Role / Device Role / Timing Role: Low-capacitance (425 pF) shunt clamp diverting surge current away from sensitive front-end. Use Value: 40 W non-repetitive peak power rating absorbs single-event surges without degradation or parametric shift. |
Use Scenario: Providing stable 3.0 V reference for 12-bit SAR ADC in portable medical sensor module. IC Role / Device Role / Timing Role: Passive voltage reference establishing ADC full-scale point independent of supply ripple. Use Value: −2.1 mV/K tempco and low IR ensure <±0.5 LSB drift over 0–70 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V0,115 | Same SOD323 package, ±2 % tolerance, but higher rdif (120 Ω) and higher IR (50 µA at 0.5×VZ) | Less suitable for low-leakage reset circuits; acceptable for general-purpose clamping | Select when cost priority outweighs leakage or dynamic impedance requirements |
| MMSZ3V0T1G | Higher tolerance (±5 %), larger SOD-123 package (3.7 × 1.6 mm), 100 Ω rdif, 50 µA IR | Not suitable for ultra-compact layouts; requires more PCB area and offers looser voltage control | Choose only if legacy footprint compatibility or higher thermal mass is required |
Compared with PZU3.0B2A,115, BZX384-B3V0,115 trades lower leakage and tighter impedance for marginally lower cost, while MMSZ3V0T1G sacrifices both precision and size for broader availability and higher surge robustness in non-space-constrained designs.
Availability
PZU3.0B2A,115 is available at Aetrix Electronics and suitable for power supply feedback regulation, microcontroller reset generation, ESD protection clamping, and precision reference voltage sourcing requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for PZU3.0B2A,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 high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.
The PZUxBA series targets general-purpose Zener regulation in space-constrained, cost-sensitive applications - emphasizing tight tolerance, low leakage, and robust surge capability for power management and protection functions.
FAQ
What is the maximum continuous reverse current for PZU3.0B2A,115 at 25 °C ambient?
The device supports up to 200 mA forward current, but as a Zener diode, its continuous reverse current is limited by power dissipation: at 3.0 V, Imax = 320 mW / 3.0 V ≈ 107 mA. Derating applies above 25 °C per Rth(j-a) = 390 K/W.
Does PZU3.0B2A,115 have automotive qualification?
No - PZU3.0B2A,115 is not AEC-Q200 qualified. It is specified for industrial and commercial use only. Nexperia explicitly states non-automotive qualified products are unsuitable for safety-critical or automotive applications unless separately validated by the customer.
How does the B2 tolerance series differ from B1 or B3 in the PZUxBA family?
B2 denotes ±2 % tolerance at IZ = 5 mA, positioned between B1 (tighter ±2 % with tighter binning) and B3 (±2 % with relaxed test conditions). For PZU3.0B2A,115, B2 guarantees VZ between 2.95 V and 3.20 V - verified per Table 8 of the datasheet Rev. 4.
Can PZU3.0B2A,115 be used in place of a 3.3 V Zener diode?
No - it is a 3.0 V nominal device. Substituting it for a 3.3 V Zener would result in premature conduction and incorrect regulation. The PZU3.3B2A,115 variant (VZ = 3.3 V, ±2 %) is the correct replacement for 3.3 V applications.
PZU3.0B2A,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):
- 3 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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:
- SOD-323
PZU3.0B2A,115 FAQ
1.How can I place an order for PZU3.0B2A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU3.0B2A,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 PZU3.0B2A,115 reliable?
The price and inventory of PZU3.0B2A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU3.0B2A,115 is usually 5 days.
3.What payment methods are accepted for PZU3.0B2A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU3.0B2A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU3.0B2A,115?
PZU3.0B2A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU3.0B2A,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 PZU3.0B2A,115?
For technical support, including PZU3.0B2A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU3.0B2A,115 requirements.
6.How does Aetrix verify that PZU3.0B2A,115 is sourced from the original manufacturer or authorized distributors?
All PZU3.0B2A,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 PZU3.0B2A,115 meets industry standards.
7.What is the process for return or replacement of PZU3.0B2A,115?
All PZU3.0B2A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU3.0B2A,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 PZU3.0B2A,115 part is unused and in its original packaging.
Return procedure for PZU3.0B2A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU3.0B2A,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
