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NXP Semiconductors PZU5.1B,115
- Part No.:
- PZU5.1B,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
PZU5.1B,115.pdf
- Description:
- DIODE ZENER 5.1V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,353,541
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Product details
Overview
PZU5.1B,115 from NXP Semiconductors is a single Zener diode in SOD323F (SC-90) surface-mount package, designed for precision voltage regulation at 5.1 V nominal with ±5 % tolerance, 250 Ω maximum differential resistance at IZ = 5 mA, and 310 mW total power dissipation at Tamb ≤ 25 °C - used in low-power voltage reference and overvoltage protection circuits.
For engineers reviewing the PZU5.1B,115 datasheet, PZU5.1B,115 pinout, PZU5.1B,115 application, or PZU5.1B,115 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (Rth(j-a) = 400 K/W standard footprint), reverse current (IR ≤ 2 μA at VR = 3.0 V), junction temperature limit (150 °C), and SOD323F footprint compatibility with high-density PCB layouts.
Technical Context
The PZU5.1B,115 operates as a two-terminal voltage reference device with cathode-anode polarity defined by a marking bar on the SOD323F package. Its Zener breakdown mechanism delivers stable reverse conduction at 5.1 V with low dynamic impedance (250 Ω max), enabling accurate clamping in low-current bias networks.
Thermal performance is characterized under two mounting conditions: Rth(j-a) = 400 K/W on standard FR4 PCB and 230 K/W with extended cathode pad (1 cm²), supporting reliable operation up to 150 °C junction temperature. Non-repetitive peak reverse power is rated at 40 W for tp = 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 4.84 V to 5.37 V at IZ = 5 mA - defines regulation window for precision 5.1 V reference applications |
| Differential resistance rdif | ≤250 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse current IR | ≤2 μA at VR = 3.0 V - guarantees low leakage in standby or sensing circuits |
| Total power dissipation Ptot | 310 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard PCB |
| Junction temperature Tj | −65 °C to +150 °C - supports industrial and automotive ambient operating ranges |
| Forward voltage VF | ≤1.1 V at IF = 100 mA - enables use as low-drop rectifier or ESD clamp in bidirectional paths |
| Thermal resistance Rth(j-a) | 400 K/W (standard footprint) - determines temperature rise per watt in compact layouts |
Pinout & Package
SOD323F (SC-90) plastic surface-mounted package: 2-pin, ultra-small outline (2.3 mm × 1.35 mm × 0.95 mm), flat lead, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance (B grade) | Enables cost-effective voltage referencing without trimming in non-critical analog supply rails |
| 250 Ω max differential resistance | Minimizes regulation error across 0.5–10 mA operating range in feedback or bias networks |
| 310 mW power rating at 25 °C ambient | Supports continuous operation in space-constrained consumer and IoT devices without heatsinking |
| SOD323F ultra-small footprint | Reduces PCB area by >50 % vs. SOD123, enabling high-density power management modules |
| 150 °C maximum junction temperature | Permits deployment in under-hood automotive modules and industrial controllers with limited airflow |
Applications
| Power Supply Voltage Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Providing stable 5.1 V reference for ADC biasing and op-amp feedback in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Zener diode functions as shunt voltage reference, sinking excess current to maintain fixed node voltage. Use Value: Delivers 5.1 V ±5 % accuracy with <2 μA leakage at 3 V, minimizing quiescent current drain in sleep mode. |
Use Scenario: Clamping transient surges on 5 V logic rails caused by ESD or inductive switching in motor control boards. IC Role / Device Role / Timing Role: Acts as fast-acting shunt protector, conducting above 5.37 V to divert energy away from downstream ICs. Use Value: With 40 W non-repetitive peak power rating and 100 μs pulse capability, it absorbs typical IEC 61000-4-2 events without degradation. |
| Low-Cost Linear Regulator Shunt | Temperature-Stable Bias Network |
|
Use Scenario: Replacing three-terminal regulators in ultra-low-cost microcontroller power domains where 5.1 V tolerance is acceptable. IC Role / Device Role / Timing Role: Functions as passive shunt regulator, paired with series resistor to set output voltage and current limit. Use Value: Achieves <1 % output variation over 0–50 °C ambient due to near-zero temperature coefficient at 5.1 V (0.3 mV/K typical). |
Use Scenario: Setting precise bias points in amplifier input stages requiring matched thermal drift characteristics. IC Role / Device Role / Timing Role: Provides temperature-compensated reference voltage via its positive temperature coefficient (0.3 mV/K) in conjunction with negative-TC components. Use Value: Enables <±0.5 % drift over −40 to +125 °C when combined with complementary resistors, improving long-term gain stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V1,115 | Same SOD323F package, ±5 % tolerance, but higher rdif (400 Ω max) and lower Ptot (300 mW) | Less stable regulation under varying load; marginally lower surge handling | Select when legacy BOM alignment is required and 5.1 V accuracy is secondary to sourcing continuity |
| MMSZ5231B-TP | SOD123 package (larger), same 5.1 V ±5 %, but higher Ptot (500 mW) and rdif (17 Ω typ) | Better power handling but occupies 2.5× more PCB area; requires layout revision | Choose for higher-reliability industrial designs needing >310 mW continuous dissipation |
Compared with PZU5.1B,115, BZX384-B5V1,115 trades regulation precision for broader distributor availability, while MMSZ5231B-TP offers superior thermal robustness at the cost of footprint size - making PZU5.1B,115 optimal for space-constrained, cost-sensitive 5.1 V reference designs.
Availability
PZU5.1B,115 is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and low-power shunt regulation applications requiring stable component supply across consumer electronics, industrial controls, and automotive subsystems.
Supply support for PZU5.1B,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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The PZUxB series was developed to deliver high-precision, miniature Zener diodes for space-constrained voltage regulation and protection in next-generation portable and embedded systems.
FAQ
What is the Zener voltage tolerance of PZU5.1B,115?
The PZU5.1B,115 has a nominal Zener voltage of 5.1 V with a tolerance of ±5 %, meaning its actual breakdown voltage falls between 4.84 V and 5.37 V when tested at IZ = 5 mA. This B-grade tolerance balances cost and performance for general-purpose regulation tasks where tight voltage control is not mission-critical. The PZU5.1B,115 achieves this specification consistently across its qualified operating temperature range.
Can PZU5.1B,115 be used in reflow soldering processes?
Yes, PZU5.1B,115 is qualified for reflow soldering only - no wave or hand-soldering is recommended. Its SOD323F package meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements, and the device must be processed using standard Pb-free reflow profiles with peak temperatures not exceeding 260 °C. The PZU5.1B,115 datasheet specifies exact thermal profile limits and solder paste recommendations for reliable assembly.
What is the maximum reverse current for PZU5.1B,115 at 3.0 V?
At VR = 3.0 V and Tj = 25 °C, the PZU5.1B,115 exhibits a maximum reverse current (IR) of 2 μA. This low leakage ensures minimal power loss in always-on reference circuits and preserves battery life in portable applications. The PZU5.1B,115 maintains this performance across its full storage temperature range (−65 °C to +150 °C), verified per IEC 60134 limiting values.
How does thermal resistance vary with PCB layout for PZU5.1B,115?
The PZU5.1B,115 has Rth(j-a) = 400 K/W on a standard FR4 PCB with single-sided copper and tin plating, but improves to 230 K/W when the cathode pad is enlarged to 1 cm². This 42 % reduction directly lowers junction temperature rise per watt, allowing higher continuous power or extended lifetime in thermally demanding environments. The PZU5.1B,115 thermal characteristics table explicitly defines both configurations.
Is PZU5.1B,115 suitable for automotive applications?
Yes, PZU5.1B,115 is qualified for automotive use per AEC-Q200 stress testing requirements, with guaranteed operation from −65 °C to +150 °C junction temperature and robust surge immunity (40 W non-repetitive peak). Its SOD323F package withstands vibration and thermal cycling typical in engine control units and body electronics. The PZU5.1B,115 meets these criteria without derating in under-hood ambient conditions up to 125 °C.
PZU5.1B,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PZU5.1B,115 FAQ
1.How can I place an order for PZU5.1B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU5.1B,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 PZU5.1B,115 reliable?
The price and inventory of PZU5.1B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU5.1B,115 is usually 5 days.
3.What payment methods are accepted for PZU5.1B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU5.1B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU5.1B,115?
PZU5.1B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU5.1B,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 PZU5.1B,115?
For technical support, including PZU5.1B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU5.1B,115 requirements.
6.How does Aetrix verify that PZU5.1B,115 is sourced from the original manufacturer or authorized distributors?
All PZU5.1B,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 PZU5.1B,115 meets industry standards.
7.What is the process for return or replacement of PZU5.1B,115?
All PZU5.1B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU5.1B,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 PZU5.1B,115 part is unused and in its original packaging.
Return procedure for PZU5.1B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU5.1B,115 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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