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Nexperia USA Inc. PZU27BA,115
- Part No.:
- PZU27BA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU27BA,115.pdf
- Description:
- DIODE ZENER 27V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,028
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Product details
Overview
PZU27BA,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 and digital circuits. It delivers a nominal Zener voltage of 27 V with ±5 % tolerance (B series), maximum differential resistance of 150 Ω at IZ = 5 mA, reverse current ≤ 40 nA at IZ = 0.5 mA, and non-repetitive peak reverse power dissipation up to 40 W.
For engineers reviewing the PZU27BA,115 datasheet, PZU27BA,115 pinout, PZU27BA,115 application, or PZU27BA,115 equivalent, key selection criteria include Zener voltage accuracy, dynamic impedance at regulation current, thermal resistance (Rth(j-a) = 390 K/W), leakage performance at low bias, and compatibility with FR4 PCB reflow soldering footprints.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable DC voltage across its terminals under varying load and input conditions. Its hard breakdown knee and low leakage support clean clamping in signal conditioning and supply rail stabilization.
Designed for surface-mounted use on standard FR4 PCBs, it features cathode-anode polarity marked by a bar on the SOD323 body, with thermal performance defined for single-sided copper layout (Rth(j-sp) = 55 K/W to cathode solder point).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V nominal, ±5 % tolerance - ensures predictable clamping level in 24 V system protection and reference circuits |
| Differential Resistance (rdif) | ≤150 Ω at IZ = 5 mA - maintains tight regulation under small load variations |
| Reverse Current (IR) | ≤40 nA at IZ = 0.5 mA - minimizes standby power loss in battery-sensitive designs |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs - handles transient surges without degradation |
| Total Power Dissipation (Ptot) | 320 mW at Tamb ≤ 25 °C on FR4 - defines continuous DC power handling in compact layouts |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in industrial ambient environments |
Pinout & Package
Package: SOD323 (SC-76), plastic surface-mount package measuring 1.7 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and cathode-bar marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marked by bar on device body; primary heat path to PCB via cathode pad |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance at low currents | 150 Ω at 5 mA enables stable regulation even in micro-power sensor interfaces |
| Hard breakdown knee | Sharp transition into conduction improves voltage threshold predictability in overvoltage detection |
| Very low leakage current | 40 nA at 0.5 mA supports ultra-low-quiescent-current applications like energy harvesting nodes |
| SOD323 footprint compatibility | Standardized 1.3 mm pitch and 1.7 mm × 1.25 mm body allows automated placement and reflow on high-density PCBs |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing reference voltage for 24 V industrial analog sensors operating in noisy factory environments. IC Role / Device Role / Timing Role: Zener diode provides precise 27 V clamp to protect ADC front-end and bias circuitry from transients. Use Value: Low rdif and hard knee ensure minimal reference drift during ESD events, preserving measurement integrity. |
Use Scenario: Protecting USB 2.0 data lines and VBUS against accidental 24–30 V misconnection in docking stations. IC Role / Device Role / Timing Role: Fast-acting shunt regulator clamps surge energy before downstream PHY ICs are damaged. Use Value: 40 W non-repetitive surge rating absorbs short-duration faults without thermal runaway or parameter shift. |
| Low-Power IoT Node Voltage Reference | Programmable Logic Supply Rail Clamp |
Use Scenario: Generating stable bias for ultra-low-power microcontrollers and RF transceivers in battery-operated edge devices. IC Role / Device Role / Timing Role: Functions as passive voltage reference in LDO feedback networks or comparator thresholds. Use Value: 40 nA reverse current at 0.5 mA reduces quiescent drain, extending coin-cell battery life beyond 10 years. |
Use Scenario: Preventing overvoltage damage to FPGA I/O banks during hot-swap or power sequencing anomalies. IC Role / Device Role / Timing Role: Shunt element that activates within nanoseconds when rail exceeds 27 V ±5 %. Use Value: Cathode-to-PCB thermal resistance of 55 K/W enables rapid heat dissipation during repetitive clamping events. |
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-B27,115 | Same SOD323 package and 27 V ±5 % rating, but higher typical rdif (200 Ω vs. 150 Ω) and higher IR (100 nA vs. 40 nA) | Less suitable for ultra-low-leakage reference designs; acceptable for general-purpose clamping where tighter regulation isn't critical | Select when cost sensitivity outweighs leakage and impedance requirements |
| MMSZ5256ET1G | SOD-123 package (larger footprint), 27 V ±5 %, rdif = 170 Ω, IR = 100 nA, Ptot = 500 mW | Better power handling but incompatible with space-constrained SOD323 layouts; requires PCB redesign | Choose only if board real estate allows larger package and higher continuous dissipation is needed |
Compared with BZX384-B27,115 and MMSZ5256ET1G, PZU27BA,115 offers the lowest combination of dynamic impedance and reverse leakage in the SOD323 form factor-critical for precision references and battery-critical systems-while maintaining identical mounting and reflow compatibility.
Availability
PZU27BA,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection, low-power IoT voltage references, and FPGA I/O rail clamping requiring stable component supply across production lifecycles.
Supply support for PZU27BA,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 solutions with focus on efficiency, reliability, and miniaturization.
The PZUxBA series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for stable voltage regulation and transient suppression in space-constrained, low-power surface-mount applications.
FAQ
What is the maximum continuous reverse current the PZU27BA,115 can sustain without exceeding its 320 mW power limit?
At 27 V Zener voltage and 320 mW total power dissipation, the maximum continuous reverse current is approximately 11.9 mA (320 mW ÷ 27 V). This assumes ambient temperature ≤25 °C on a standard FR4 PCB with single-sided copper; derating applies above 25 °C per the Rth(j-a) = 390 K/W thermal resistance.
How does the PZU27BA,115's temperature coefficient affect its regulation accuracy over −40 °C to +85 °C?
Per datasheet Fig. 3–8, the PZU27BA,115 (27 V type) exhibits a positive temperature coefficient of approximately +1 mV/K. Over a 125 K range (−40 °C to +85 °C), this yields ~125 mV drift - about ±0.46 % of 27 V - making it suitable for non-critical references but not high-precision metrology.
Can the PZU27BA,115 be used in parallel for higher surge current handling?
No - Zener diodes exhibit manufacturing spread in VZ, causing current imbalance. Parallel connection risks thermal runaway in the lower-VZ unit. For higher surge capability, use a single higher-rated device (e.g., PZU30BA,115) or external current-sharing resistors, though the latter degrades regulation accuracy.
Is the SOD323 package of the PZU27BA,115 compatible with standard IPC-7351B land patterns?
Yes - the device's SOD323 (SC-76) outline matches IPC-7351B "SOD323" generic footprint. Recommended reflow land dimensions are 0.6 mm × 1.1 mm pads with 1.3 mm center-to-center spacing and 0.5 mm solder mask opening, as shown in Figure 10 of the datasheet.
PZU27BA,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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 21 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
PZU27BA,115 FAQ
1.How can I place an order for PZU27BA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU27BA,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 PZU27BA,115 reliable?
The price and inventory of PZU27BA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU27BA,115 is usually 5 days.
3.What payment methods are accepted for PZU27BA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU27BA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU27BA,115?
PZU27BA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU27BA,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 PZU27BA,115?
For technical support, including PZU27BA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU27BA,115 requirements.
6.How does Aetrix verify that PZU27BA,115 is sourced from the original manufacturer or authorized distributors?
All PZU27BA,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 PZU27BA,115 meets industry standards.
7.What is the process for return or replacement of PZU27BA,115?
All PZU27BA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU27BA,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 PZU27BA,115 part is unused and in its original packaging.
Return procedure for PZU27BA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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