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NXP Semiconductors PZU7.5B,115
- Part No.:
- PZU7.5B,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
PZU7.5B,115.pdf
- Description:
- DIODE ZENER 7.5V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:57,000
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Product details
Overview
PZU7.5B,115 from NXP Semiconductors is a general-purpose Zener diode in SOD323F (SC-90) surface-mount package, designed for voltage regulation and reference functions at 7.5 V nominal Zener voltage with ±5 % tolerance, 60 Ω maximum differential resistance, and 10 nA reverse current at 5 mA test current. It delivers stable regulation in low-power analog circuits, power supply feedback paths, and overvoltage protection nodes.
For engineers reviewing the PZU7.5B,115 datasheet, PZU7.5B,115 pinout, PZU7.5B,115 application, or PZU7.5B,115 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (230 K/W on standard FR4), junction temperature limit (150 °C), and SOD323F footprint compatibility with high-density PCB layouts.
Technical Context
The PZU7.5B,115 operates as a single-junction silicon Zener diode optimized for stable reverse-breakdown regulation at 7.5 V with low temperature coefficient (±4.0 mV/K at IZ = 5 mA). Its design targets precision biasing and voltage clamping in ambient-temperature-stable environments where low leakage and predictable rdif are critical.
It exhibits 10 nA reverse current at VR = 5 V and 60 Ω differential resistance at IZ = 5 mA, enabling tight regulation under light-load conditions. Thermal performance is defined for two mounting configurations: standard FR4 footprint (Rth(j-a) = 230 K/W) and enhanced cathode pad (Rth(j-a) = 170 K/W), supporting both compact and thermally demanding placements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.06 V to 7.84 V at IZ = 5 mA - defines regulation band for feedback or reference use |
| Differential Resistance (rdif) | ≤60 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤10 nA at VR = 5 V - enables low-power standby operation without significant leakage error |
| Temperature Coefficient (SZ) | ±4.0 mV/K at IZ = 5 mA - supports stable regulation across −65 °C to +150 °C ambient range |
| Total Power Dissipation (Ptot) | 310 mW at Tamb ≤25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Junction Temperature (Tj) | 150 °C maximum - determines thermal derating threshold for long-term reliability |
| Package | SOD323F (SC-90) - 2-pin ultra-small flat-lead SMD footprint (2.3 × 1.35 mm) for high-density routing |
Pinout & Package
SOD323F (SC-90) is a 2-pin surface-mount plastic package with cathode marked by a bar on the device body. The package measures 2.3 mm × 1.35 mm × 0.95 mm and features gull-wing leads for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal; carries reverse-bias current during regulation |
| 2 | Anode | Connected to ground or lower-potential rail; completes Zener conduction path when reverse voltage exceeds VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance (B grade) | Enables accurate voltage reference without post-production trimming in cost-sensitive designs |
| Low 10 nA reverse leakage at 5 V | Minimizes quiescent current draw in battery-powered or always-on monitoring circuits |
| 60 Ω differential resistance at 5 mA | Provides <1 % output voltage change per 3 mA load step-critical for precision feedback loops |
| SOD323F ultra-compact footprint | Supports >2× higher component density vs. SOD123; compatible with 0.5 mm pitch reflow profiles |
| 150 °C max junction temperature rating | Allows operation in automotive under-hood or industrial control environments without forced cooling |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage of a 12 V DC-DC converter using optocoupler-coupled feedback to primary-side controller. IC Role / Device Role / Timing Role: Zener reference element setting precise 7.5 V threshold at secondary-side TL431 cathode node. Use Value: Tight ±5 % VZ tolerance and low rdif ensure <±1.2 % output voltage accuracy across line/load/temperature. |
Use Scenario: Protecting microcontroller I/O pins from transient surges on a 5 V sensor interface line. IC Role / Device Role / Timing Role: Clamping diode shunting excess voltage above 7.5 V to ground before reaching MCU input. Use Value: 10 nA IR prevents signal degradation during normal operation; fast response limits clamp delay to nanoseconds. |
| Bias Voltage Reference | Current Source Stabilization |
Use Scenario: Providing stable bias to op-amp input stage in a precision analog front-end for medical-grade ECG amplifier. IC Role / Device Role / Timing Role: Low-noise Zener reference generating fixed 7.5 V rail for active filter biasing. Use Value: ±4.0 mV/K SZ minimizes drift-induced baseline offset; 60 Ω rdif rejects ripple coupling into sensitive analog nodes. |
Use Scenario: Setting reference voltage for constant-current LED driver IC operating from 9 V supply. IC Role / Device Role / Timing Role: Defining current-sense threshold via resistor divider anchored to PZU7.5B,115 cathode. Use Value: Stable VZ ensures <±2 % current accuracy over −40 °C to +85 °C ambient without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5,215 | Same SOT23 package (3.0 × 1.4 mm), ±5 % VZ, but higher rdif (90 Ω) and 500 nA IR at 5 V | Less suitable for low-leakage or high-accuracy feedback; better for general-purpose clamping | Choose BZX84-C7V5,215 only if SOT23 board space allows and leakage tolerance >500 nA |
| MMSZ5235B-7-F | SOD123 package (3.7 × 1.6 mm), ±5 % VZ, 100 Ω rdif, 100 nA IR at 5 V, 500 mW Ptot | Higher power handling but larger footprint; less optimal for ultra-dense layouts | Select MMSZ5235B-7-F when thermal margin >500 mW is required and PCB area permits 2.7× larger footprint |
Compared with PZU7.5B,115, BZX84-C7V5,215 trades leakage and regulation accuracy for wider availability, while MMSZ5235B-7-F sacrifices miniaturization for higher power and thermal robustness-neither is pin-compatible due to differing packages (SOT23/SOD123 vs. SOD323F).
Availability
PZU7.5B,115 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamp, and bias voltage reference applications requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for PZU7.5B,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 consumer markets.
The PZUxB series was developed to deliver high-precision, miniature Zener regulation for space-constrained power management and signal conditioning in industrial control and portable electronics.
FAQ
What is the Zener voltage tolerance of PZU7.5B,115?
The PZU7.5B,115 has a nominal Zener voltage of 7.5 V with a tolerance of ±5 %, meaning its actual breakdown voltage falls between 7.06 V and 7.84 V when tested at 5 mA. This B-grade tolerance is confirmed in Table 9 of the NXP datasheet and applies specifically to the PZU7.5B,115 variant-not to B1/B2/B3 versions which offer tighter tolerances.
What is the maximum reverse current for PZU7.5B,115 at 5 V?
The PZU7.5B,115 exhibits a maximum reverse current (IR) of 10 nA when biased at VR = 5 V, as specified in Table 9 of the NXP datasheet. This ultra-low leakage supports energy-efficient operation in always-on circuits and ensures minimal loading on high-impedance reference nodes in the PZU7.5B,115 application circuit.
Can PZU7.5B,115 be used in reflow soldering processes?
Yes, PZU7.5B,115 is qualified exclusively for reflow soldering per Section 10 of the NXP datasheet. Its SOD323F package is not rated for wave or hand soldering. Reflow profile must comply with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements, and the PZU7.5B,115 marking bar must remain visible post-reflow to verify orientation.
What is the thermal resistance from junction to ambient for PZU7.5B,115 on standard FR4?
When mounted on an FR4 PCB with single-sided copper, tin-plated, and standard footprint (per Table 6), the PZU7.5B,115 has a thermal resistance Rth(j-a) of 230 K/W. This value directly governs power derating above 25 °C ambient and is a verified parameter for the PZU7.5B,115 in its intended SOD323F mounting configuration.
How does the temperature coefficient of PZU7.5B,115 affect regulation stability?
The PZU7.5B,115 has a temperature coefficient (SZ) of ±4.0 mV/K at IZ = 5 mA, meaning its Zener voltage shifts by up to ±4 mV per degree Celsius change in junction temperature. This is documented in Table 9 and enables predictable drift compensation in the PZU7.5B,115 design-critical for applications like precision biasing where thermal gradients impact system accuracy.
PZU7.5B,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:
- -
PZU7.5B,115 FAQ
1.How can I place an order for PZU7.5B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU7.5B,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 PZU7.5B,115 reliable?
The price and inventory of PZU7.5B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU7.5B,115 is usually 5 days.
3.What payment methods are accepted for PZU7.5B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU7.5B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU7.5B,115?
PZU7.5B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU7.5B,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 PZU7.5B,115?
For technical support, including PZU7.5B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU7.5B,115 requirements.
6.How does Aetrix verify that PZU7.5B,115 is sourced from the original manufacturer or authorized distributors?
All PZU7.5B,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 PZU7.5B,115 meets industry standards.
7.What is the process for return or replacement of PZU7.5B,115?
All PZU7.5B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU7.5B,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 PZU7.5B,115 part is unused and in its original packaging.
Return procedure for PZU7.5B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU7.5B,115 Tags
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MM5Z5V1ST1G
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