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Nexperia USA Inc. PDZ7.5B,115
- Part No.:
- PDZ7.5B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ7.5B,115.pdf
- Description:
- DIODE ZENER 7.5V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,549
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Product details
Overview
PDZ7.5B,115 from Nexperia is a single Zener diode designed for low-power voltage regulation in space-constrained SMD applications, with a nominal Zener voltage of 7.5 V (7.28–7.60 V at IZ = 5 mA), ±2 % tolerance, 60 Ω max differential resistance, and 0.5 μA max reverse leakage at VR = 5.4 V - deployed in industrial power supply feedback loops, sensor biasing, and reference voltage clamping.
For engineers reviewing the PDZ7.5B,115 datasheet, PDZ7.5B,115 pinout, PDZ7.5B,115 application, or PDZ7.5B,115 equivalent, this device is selected for precision low-current regulation where thermal stability (SZ = +4.0 mV/K), compact SOD323 packaging, and hard breakdown knee behavior are critical to maintaining stable reference integrity under varying load and temperature conditions.
Technical Context
This Zener diode operates in reverse breakdown mode with a well-defined knee at low test currents (IZ = 5 mA), delivering stable regulation despite ambient temperature shifts up to +150 °C junction temperature. Its low dynamic impedance (≤60 Ω) ensures minimal output voltage variation under small-signal current fluctuations.
The device exhibits positive temperature coefficient (+4.0 mV/K) at IZ = 5 mA, enabling predictable drift compensation in multi-diode reference networks. Thermal resistance from junction to solder point is 130 K/W, supporting reliable operation on standard FR4 PCBs with single-sided copper and tin plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.28–7.60 V at IZ = 5 mA - defines precise clamping threshold for 7.5 V nominal reference circuits |
| Differential Resistance rdif | ≤60 Ω - ensures <15 mV output shift per 1 mA current change, critical for stable feedback sensing |
| Reverse Leakage IR | ≤0.5 μA at VR = 5.4 V - minimizes parasitic current draw in high-impedance bias networks |
| Power Dissipation Ptot | 400 mW at Tamb ≤ 25 °C - supports continuous operation in low-power regulator stages without heatsinking |
| Forward Voltage VF | 0.9 V at IF = 10 mA - enables use as polarity-sensitive clamp or protection element in bidirectional interfaces |
| Temperature Coefficient SZ | +4.0 mV/K at IZ = 5 mA - allows predictable voltage drift modeling across −65 to +150 °C operating range |
| Junction-to-Ambient Rth(j-a) | 340 K/W - determines derating slope (see Fig. 1); full power usable only below ~55 °C ambient on standard FR4 |
Pinout & Package
PDZ7.5B,115 is housed in a SOD323 (SC-76) surface-mount plastic package measuring 1.8 × 1.35 × 0.95 mm, with cathode indicated by a marking bar on the top surface. The package supports reflow and wave soldering using standardized footprints (Fig. 9–10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-biased during Zener operation; marking bar identifies this terminal |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for regulation current flow |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, low-hysteresis transition into regulation at IZ ≥ 0.5 mA - improves turn-on repeatability in precision clamp circuits |
| Low dynamic impedance | 60 Ω max at IZ = 5 mA - reduces sensitivity to source impedance variations in feedback paths |
| Very low leakage | 0.5 μA max at VR = 5.4 V - preserves accuracy in high-Z voltage dividers and sensor excitation networks |
| Stable temperature coefficient | +4.0 mV/K at IZ = 5 mA - enables predictable drift compensation when paired with negative-coefficient components |
| SOD323 footprint compatibility | Standardized 0.6 mm pad pitch and 1.65 mm land length - ensures drop-in replacement in existing miniaturized PCB layouts |
Applications
| Industrial Power Supply Feedback | Microcontroller I/O Clamp Protection |
|---|---|
|
Use Scenario: Regulating error amplifier reference voltage in isolated DC-DC converter feedback networks. IC Role / Device Role / Timing Role: Zener diode provides stable 7.5 V reference for optocoupler-driven feedback loop, replacing higher-cost shunt regulators. Use Value: Enables tight output voltage tolerance (±1.5 %) over line/load/temperature with no external bias resistor required beyond standard pull-up. |
Use Scenario: Protecting 3.3 V or 5 V microcontroller GPIO pins from transient overvoltage events. IC Role / Device Role / Timing Role: Bidirectional clamp limiting input voltage to VCC + 0.9 V (forward) or 7.5 V (reverse), absorbing ESD and inductive spikes. Use Value: Prevents latch-up and gate oxide damage while maintaining signal integrity due to fast response (<1 ns) and low capacitance (170 pF). |
| Temperature-Compensated Reference Generator | Low-Power Sensor Biasing |
|
Use Scenario: Constructing a compensated reference by combining PDZ7.5B,115 with a negative-TC diode or thermistor network. IC Role / Device Role / Timing Role: Primary Zener element providing base voltage offset; its +4.0 mV/K TC offsets negative drift from companion components. Use Value: Achieves <±10 ppm/°C drift over −40 to +85 °C in battery-powered instrumentation without active circuitry. |
Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) or strain gauges in portable measurement systems. IC Role / Device Role / Timing Role: Low-leakage (0.5 μA) Zener establishes fixed bias point independent of supply ripple or battery sag. Use Value: Maintains ADC reference ratio accuracy to within 0.02 % over 10-year field deployment in unregulated coin-cell-powered devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C7V5 | Same SOD323 package; tighter 5 % tolerance (vs. ±2 %); higher 100 Ω rdif; 1 μA IR at VR = 5.4 V | Acceptable where ±5 % regulation accuracy suffices and board-level trimming is available | Select when cost sensitivity outweighs need for low-drift performance in production-critical designs |
| MMSZ5233B | SOD123 package (larger footprint); ±5 % tolerance; 30 Ω rdif; 1 μA IR; 500 mW Ptot | Preferred for higher-power dissipation scenarios (>400 mW) or legacy SOD123 layout reuse | Choose when thermal margin >100 mW is required and PCB real estate permits larger package |
Compared with BZX584-C7V5 and MMSZ5233B, PDZ7.5B,115 offers superior voltage precision and lower leakage for low-current reference applications, while its SOD323 size enables denser routing in modern IoT sensor modules where board space is constrained.
Availability
PDZ7.5B,115 is available at Aetrix Electronics and suitable for industrial power supplies, microcontroller protection circuits, temperature-compensated references, and low-power sensor biasing requiring stable component supply and long-term obsolescence management.
Supply support for PDZ7.5B,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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with manufacturing rooted in process control and automotive-grade quality systems.
PDZ7.5B,115 belongs to the PDZ-B series of low-power Zener diodes engineered specifically for general-purpose voltage regulation in consumer, industrial, and computing applications where miniature SMD packaging and tight parametric consistency are essential.
FAQ
What is the maximum continuous reverse current the PDZ7.5B,115 can sustain without degradation?
The PDZ7.5B,115 has no specified continuous reverse current rating; it is rated for Zener operation at IZ = 5 mA typical, with absolute maximum total power dissipation of 400 mW at 25 °C ambient. Sustained reverse current must be limited to ensure junction temperature remains ≤150 °C - for example, at 7.5 V, average IZ must stay below ~53 mA with full derating applied above 25 °C.
Does the PDZ7.5B,115 support reflow soldering, and what profile is recommended?
Yes, PDZ7.5B,115 is qualified for lead-free reflow soldering per J-STD-020. The recommended profile uses peak temperature of 260 °C for ≤10 seconds, with ramp-up rate ≤3 °C/s and ramp-down rate ≤6 °C/s. Figure 9 in the datasheet specifies the exact solder land dimensions (0.6 mm × 1.65 mm) and solder paste stencil openings (0.5 mm × 1.65 mm) for optimal wetting and coplanarity.
How does the +4.0 mV/K temperature coefficient affect long-term voltage stability?
The +4.0 mV/K coefficient means the Zener voltage increases by 4 mV per degree Celsius rise in junction temperature at IZ = 5 mA. Over a 100 °C range (−25 to +75 °C ambient, assuming ~30 °C self-heating), this produces ~400 mV drift - but in practice, system-level compensation (e.g., pairing with NTC thermistors or complementary diodes) reduces net drift to <±10 mV in calibrated instruments.
Can PDZ7.5B,115 be used in place of a 7.5 V linear regulator for powering small loads?
No - PDZ7.5B,115 is not a voltage regulator IC and cannot source significant current. It functions only as a shunt reference: excess current must be sunk through a series resistor, and output current capability is limited by power dissipation (max ~53 mA at 7.5 V with full derating). For active regulation, use dedicated LDOs like NCP1117ST75T3G or AP2112K-7.5TRG1.
PDZ7.5B,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ7.5B,115 FAQ
1.How can I place an order for PDZ7.5B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ7.5B,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 PDZ7.5B,115 reliable?
The price and inventory of PDZ7.5B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ7.5B,115 is usually 5 days.
3.What payment methods are accepted for PDZ7.5B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ7.5B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ7.5B,115?
PDZ7.5B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ7.5B,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 PDZ7.5B,115?
For technical support, including PDZ7.5B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ7.5B,115 requirements.
6.How does Aetrix verify that PDZ7.5B,115 is sourced from the original manufacturer or authorized distributors?
All PDZ7.5B,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 PDZ7.5B,115 meets industry standards.
7.What is the process for return or replacement of PDZ7.5B,115?
All PDZ7.5B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ7.5B,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 PDZ7.5B,115 part is unused and in its original packaging.
Return procedure for PDZ7.5B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ7.5B,115 Tags
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