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NXP Semiconductors PZU24B1,115
- Part No.:
- PZU24B1,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
PZU24B1,115.pdf
- Description:
- DIODE ZENER 24V 310MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:42,000
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Product details
Overview
PZU24B1,115 from Nexperia is a Zener voltage regulator diode in SOD323F (SC-90) package, providing precise 24 V nominal regulation at 5 mA with ±2 % tolerance (B1 grade), 120 Ω maximum differential resistance, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PZU24B1,115 datasheet, PZU24B1,115 pinout, PZU24B1,115 application, or PZU24B1,115 equivalent, this device serves as a compact, thermally robust, low-leakage voltage reference in space-constrained power rail stabilization and ESD-protected signal conditioning circuits.
Technical Context
The PZU24B1,115 operates as a two-terminal shunt regulator with hard breakdown knee and intentional minor leakage rise optimized for fast switching and noise reduction per AN90031. Its thermal resistance from junction to solder point is 55 K/W when mounted on standard FR4 PCB.
It delivers stable 24 V regulation under reverse bias with 50 nA max reverse current at VR = 19.2 V (80 % of VZ), 19 A non-repetitive peak reverse current capability (tp = 100 μs), and 550 mW total power dissipation at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V nominal at IZ = 5 mA; tight ±2 % tolerance ensures accurate voltage clamping in precision reference circuits. |
| Differential Resistance (rdif) | 120 Ω max at IZ = 5 mA; low impedance maintains stable regulation under varying load currents. |
| Reverse Current (IR) | 50 nA max at VR = 19.2 V; ultra-low leakage preserves battery life and signal integrity in standby modes. |
| Power Dissipation (Ptot) | 550 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad; supports moderate continuous power handling in compact layouts. |
| Thermal Resistance (Rth(j-sp)) | 55 K/W junction-to-solder-point; enables reliable thermal transfer to PCB copper, critical for automotive under-hood reliability. |
| Temperature Coefficient (SZ) | 1.3 mV/K at IZ = 5 mA; low drift minimizes output voltage variation across -65 °C to +150 °C operating range. |
| AEC-Q101 Qualified | Qualified per Automotive Electronics Council stress test standard; validated for use in automotive infotainment, body control, and ADAS subsystems. |
Pinout & Package
SOD323F (SC-90) plastic surface-mounted package: 2.7 mm × 1.6 mm × 0.95 mm footprint, flat lead, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal; requires thermal pad for optimal heat dissipation. |
| 2 | Anode | Connected to ground or lower-potential rail; forms shunt path for excess current during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B1 grade) | Enables tighter system-level voltage margining than standard ±5 % (B grade), reducing need for post-regulation trimming. |
| Hard breakdown knee | Ensures sharp, predictable conduction onset at VZ, improving transient response and reducing overshoot in clamp applications. |
| Optimized leakage for noise reduction | Intentional minor IR rise improves high-frequency stability and reduces broadband noise in sensitive analog signal paths. |
| AEC-Q101 qualification | Validates reliability for automotive-grade operation including temperature cycling, humidity, and mechanical shock requirements. |
| SOD323F ultra-small footprint | 0.95 mm height and 2.7 mm × 1.6 mm area enable placement in dense PCB layouts such as camera modules and radar sensors. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 24 V supply rails for microcontroller I/O protection and CAN transceiver biasing in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage reference and overvoltage clamp protecting downstream logic from load-dump transients. Use Value: AEC-Q101 rating and 19 A surge capability ensure survival during ISO 7637-2 Pulse 5a events without external TVS stacking. |
Use Scenario: Providing stable 24 V reference for 4–20 mA loop-powered pressure transmitters in hazardous-area instrumentation. IC Role / Device Role / Timing Role: Precision voltage reference for DAC output scaling and ADC input clamping in analog front-end circuitry. Use Value: 1.3 mV/K temperature coefficient and 50 nA leakage maintain <0.1 % full-scale error across -40 °C to +85 °C ambient. |
| Automotive Infotainment Power Sequencing | Medical Diagnostic Equipment Bias Supply |
Use Scenario: Generating clean 24 V auxiliary bias for display backlight drivers and audio amplifier pre-bias stages. IC Role / Device Role / Timing Role: Low-noise voltage reference enabling ripple-free startup sequencing and reduced EMI in multi-rail systems. Use Value: Hard breakdown knee and optimized leakage suppress switching noise coupling into sensitive audio paths. |
Use Scenario: Regulating isolated 24 V bias for photodiode transimpedance amplifiers and analog multiplexers in portable ultrasound units. IC Role / Device Role / Timing Role: Low-drift, low-leakage shunt regulator ensuring stable gain calibration and minimal dark-current offset. Use Value: 120 Ω rdif and 55 K/W Rth(j-sp) allow stable DC bias under pulsed ultrasound excitation without thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B24,115 | Same SOD323F package and 24 V ±2 % rating, but higher 200 Ω rdif and no AEC-Q101 qualification. | Limited to industrial/commercial use; unsuitable for automotive due to lack of stress-test validation. | Select when cost sensitivity outweighs automotive qualification and lower dynamic impedance is acceptable. |
| MMSZ5245B-TP | SOD-123 package (larger 3.5 mm × 1.6 mm), same 24 V ±5 % (B grade), 1000 Ω rdif, no AEC-Q101. | Requires larger PCB area; higher impedance limits performance in fast-transient suppression. | Choose only if legacy SOD-123 footprint compatibility is mandatory and automotive compliance is not required. |
Compared with BZX384-B24,115 and MMSZ5245B-TP, the PZU24B1,115 offers superior dynamic impedance, automotive qualification, and thermal performance in the smallest available footprint-making it the preferred choice for next-generation automotive and high-density industrial designs where reliability and board space are critical.
Availability
PZU24B1,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for PZU24B1,115 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.
The PZUxB series targets compact, high-reliability voltage regulation in automotive and industrial systems, designed specifically to meet AEC-Q101 requirements while minimizing PCB area and thermal resistance.
FAQ
What is the Zener voltage tolerance of PZU24B1,115?
The PZU24B1,115 has a ±2 % Zener voltage tolerance (B1 grade) at IZ = 5 mA, meaning its nominal 24 V regulation falls between 23.52 V and 24.48 V under specified test conditions. This tighter tolerance compared to standard ±5 % (B grade) variants supports higher-accuracy voltage references in precision analog and automotive control circuits.
Is PZU24B1,115 qualified for automotive applications?
Yes, the PZU24B1,115 is AEC-Q101 qualified per the Automotive Electronics Council standard for discrete semiconductors. This qualification covers stress tests including temperature cycling, humidity, and mechanical shock-validating its suitability for under-hood and cabin applications such as body control modules and infotainment power supplies.
What is the maximum reverse current specification for PZU24B1,115 at 19.2 V?
At VR = 19.2 V (80 % of nominal VZ), the PZU24B1,115 specifies a maximum reverse current (IR) of 50 nA. This ultra-low leakage supports energy-efficient operation in battery-backed systems and preserves signal integrity in high-impedance sensor interfaces where stray current could introduce measurement error.
What package type does PZU24B1,115 use and what are its key dimensions?
The PZU24B1,115 uses the SOD323F (SC-90) package: 2.7 mm × 1.6 mm footprint, 0.95 mm height, with flat leads and cathode identified by a marking bar. Its compact size and low profile make it ideal for space-constrained applications like automotive camera modules and portable medical devices.
How does the thermal resistance of PZU24B1,115 compare to similar Zener diodes?
The PZU24B1,115 achieves 55 K/W junction-to-solder-point thermal resistance (Rth(j-sp)) when mounted per recommended footprint-significantly lower than typical SOD-323 or SOD-123 alternatives. This enables more efficient heat transfer to PCB copper, supporting higher sustained power dissipation and improved reliability in thermally demanding environments.
PZU24B1,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±2%
- Power - Max:
- 310 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 19 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
PZU24B1,115 FAQ
1.How can I place an order for PZU24B1,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU24B1,115 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 PZU24B1,115 reliable?
The price and inventory of PZU24B1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU24B1,115 is usually 5 days.
3.What payment methods are accepted for PZU24B1,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU24B1,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU24B1,115?
PZU24B1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU24B1,115 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 PZU24B1,115?
For technical support, including PZU24B1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU24B1,115 requirements.
6.How does Aetrix verify that PZU24B1,115 is sourced from the original manufacturer or authorized distributors?
All PZU24B1,115 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 PZU24B1,115 meets industry standards.
7.What is the process for return or replacement of PZU24B1,115?
All PZU24B1,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU24B1,115, 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 PZU24B1,115 part is unused and in its original packaging.
Return procedure for PZU24B1,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU24B1,115 Tags
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