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Nexperia USA Inc. PZU7.5BA,115
- Part No.:
- PZU7.5BA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU7.5BA,115.pdf
- Description:
- DIODE ZENER 7.5V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:940
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Product details
Overview
PZU7.5BA,115 from Nexperia is a general-purpose Zener voltage regulator diode in SOD323 (SC-76) package, designed for precision voltage reference and overvoltage protection in low-power analog circuits. It delivers a nominal Zener voltage of 7.5 V with ±5 % tolerance (B series), differential resistance ≤60 Ω at IZ = 5 mA, reverse current ≤10 nA at IZ = 0.5 mA, and non-repetitive peak reverse power dissipation up to 40 W - enabling robust transient suppression in compact DC bias networks.
For engineers reviewing the PZU7.5BA,115 datasheet, PZU7.5BA,115 pinout, PZU7.5BA,115 application, or PZU7.5BA,115 equivalent, key selection criteria include its 7.5 V regulation accuracy, low leakage at sub-mA bias, hard breakdown knee, and thermal resistance of 255 K/W (junction-to-solder point) for reliable operation on FR4 PCBs with standard footprint.
Technical Context
This Zener diode operates in reverse-biased avalanche mode with a specified working voltage range of 7.06 V to 7.84 V at IZ = 5 mA and exhibits a temperature coefficient of +4.0 mV/K across 25–150 °C. Its differential resistance remains stable below 60 Ω under regulated current conditions, supporting tight voltage reference stability in feedback loops.
The device features intentional low dynamic impedance at low currents and minimal leakage - optimized for noise-sensitive applications such as sensor biasing and ADC reference stabilization. Its SOD323 package enables high-density placement while maintaining thermal performance via direct cathode solder-point conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V nominal, 7.06–7.84 V min/max at IZ = 5 mA - defines precise regulation threshold for voltage clamping |
| Tolerance | ±5 % (B series) - ensures predictable voltage setpoint without binning or calibration |
| Differential Resistance (rdif) | ≤60 Ω at IZ = 5 mA - maintains low output impedance for stable regulation under load variation |
| Reverse Current (IR) | ≤10 nA at IZ = 0.5 mA - minimizes standby power loss in battery-powered bias networks |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - supports surge immunity against ESD or inductive kickback transients |
| Total Power Dissipation (Ptot) | 320 mW at Tamb ≤ 25 °C on FR4 PCB - sets continuous DC power handling limit for thermal design |
| Junction Temperature (Tj) | −55 to +150 °C - enables operation in industrial ambient environments without derating |
Pinout & Package
The PZU7.5BA,115 is housed in a SOD323 (SC-76) surface-mount plastic package measuring 1.7 mm × 1.25 mm × 0.95 mm, with 1.3 mm lead pitch and cathode-marked top-side bar. Thermal performance relies on cathode-side solder pad area (1 cm² recommended) for junction-to-solder-point conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal - reverse-bias anode connection point |
| 2 | Anode | Connected to ground or lower-potential rail - completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition at 7.5 V enables clean clamping without soft saturation drift |
| Low dynamic impedance | ≤60 Ω at 5 mA ensures minimal voltage deviation under varying load current in reference circuits |
| Ultra-low leakage | ≤10 nA at 0.5 mA supports microamp-level biasing in high-impedance sensor interfaces |
| Optimized thermal resistance | Rth(j-sp) = 255 K/W allows direct heat transfer from junction to cathode solder point on FR4 |
Applications
| Power Supply Voltage Reference | Sensor Bias Network Stabilization |
|---|---|
Use Scenario: Providing stable 7.5 V reference for op-amp comparators and analog front-end ICs in industrial control modules. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, absorbing excess current to maintain fixed potential at feedback node. Use Value: Enables ±0.375 V regulation accuracy without external trimming, reducing BOM count and layout area vs. precision IC references. |
Use Scenario: Biasing resistive temperature detectors (RTDs) and bridge sensors in portable instrumentation. IC Role / Device Role / Timing Role: Supplies low-noise, low-drift excitation voltage while rejecting supply ripple via high PSRR inherent to Zener topology. Use Value: Achieves <10 nA leakage-induced offset error and <60 Ω output impedance - critical for 16-bit ADC accuracy in µA-range bias paths. |
| Overvoltage Protection Clamp | ADC Input Protection Circuit |
Use Scenario: Protecting microcontroller GPIO pins from transient overvoltage events in automotive body electronics. IC Role / Device Role / Timing Role: Shunt clamp activated during >7.84 V surges, diverting current away from sensitive input structures. Use Value: Withstands 40 W non-repetitive pulses (100 µs), limiting clamped voltage to ≤8.2 V - within absolute max rating of 3.3 V/5 V logic inputs. |
Use Scenario: Safeguarding SAR ADC analog inputs against ESD and accidental 12 V misconnection in test equipment. IC Role / Device Role / Timing Role: Front-end Zener limits input voltage before series current-limiting resistor, preventing latch-up or oxide damage. Use Value: Combines 7.5 V clamping threshold with ≤10 nA off-state leakage - avoids signal distortion while ensuring fast transient response (<1 ns rise time). |
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-B7V5 | Same 7.5 V nominal, ±5 % tolerance, but SOD323 package with higher rdif (≤90 Ω) and higher IR (≤100 nA at 0.5 mA) | Less suitable for ultra-low-leakage bias networks; acceptable for basic clamping where leakage <100 nA is tolerable | Select when cost sensitivity outweighs leakage or impedance requirements |
| MMSZ5235B | 7.5 V, ±5 %, but SOD123 package (larger footprint); rdif ≤90 Ω, IR ≤100 nA, Ptot = 350 mW | Requires more PCB area; better thermal margin on large pads but incompatible with ultra-dense layouts | Choose when higher continuous power handling (350 mW) or legacy footprint compatibility is prioritized |
Compared with BZX384-B7V5 and MMSZ5235B, PZU7.5BA,115 offers superior low-current impedance (≤60 Ω vs. ≤90 Ω) and 10× lower leakage (≤10 nA), making it optimal for precision analog biasing - whereas alternatives trade performance for cost or thermal headroom.
Availability
PZU7.5BA,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation power rails, and microcontroller I/O protection requiring stable component supply with guaranteed long-term continuity.
Supply support for PZU7.5BA,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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The PZUxBA series targets cost-sensitive, space-constrained applications needing stable Zener regulation - emphasizing low leakage, sharp knee characteristics, and SOD323 scalability across 2.4–51 V voltage grades.
FAQ
What is the maximum continuous reverse current the PZU7.5BA,115 can sustain without exceeding its 320 mW power limit?
At 7.5 V Zener voltage and 320 mW total power dissipation, the maximum continuous reverse current is 42.7 mA (320 mW ÷ 7.5 V). This assumes ambient temperature ≤25 °C on FR4 PCB with standard footprint; derating applies above 25 °C per Rth(j-a) = 390 K/W.
How does the temperature coefficient of +4.0 mV/K affect regulation accuracy over −40 °C to +85 °C ambient?
Over a 125 K temperature span, the Zener voltage shifts by +0.5 V (4.0 mV/K × 125 K), resulting in a total VZ range of 7.06–7.84 V (spec) plus thermal drift up to ~7.55 V at +85 °C - remaining within ±5 % band for most non-critical biasing applications.
Can PZU7.5BA,115 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device or active regulation instead.
Is the SOD323 package compatible with standard reflow profiles for lead-free assembly?
Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D reflow profiles. The SOD323 outline supports peak temperatures up to 260 °C; recommended solder land dimensions are 0.6 mm × 0.5 mm per pad with 1.3 mm center-to-center pitch.
PZU7.5BA,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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 320 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:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PZU7.5BA,115 FAQ
1.How can I place an order for PZU7.5BA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU7.5BA,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 PZU7.5BA,115 reliable?
The price and inventory of PZU7.5BA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU7.5BA,115 is usually 5 days.
3.What payment methods are accepted for PZU7.5BA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU7.5BA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU7.5BA,115?
PZU7.5BA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU7.5BA,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 PZU7.5BA,115?
For technical support, including PZU7.5BA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU7.5BA,115 requirements.
6.How does Aetrix verify that PZU7.5BA,115 is sourced from the original manufacturer or authorized distributors?
All PZU7.5BA,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 PZU7.5BA,115 meets industry standards.
7.What is the process for return or replacement of PZU7.5BA,115?
All PZU7.5BA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU7.5BA,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 PZU7.5BA,115 part is unused and in its original packaging.
Return procedure for PZU7.5BA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU7.5BA,115 Tags
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