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NXP Semiconductors PZU9.1BL,315
- Part No.:
- PZU9.1BL,315
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
PZU9.1BL,315.pdf
- Description:
- DIODE ZENER 9.1V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:92,499
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Product details
Overview
PZU9.1BL from Nexperia is a single Zener diode in SOD882 package designed for precision voltage regulation and overvoltage protection in space-constrained PCBs, with nominal Zener voltage 9.1 V, ±5 % tolerance, 6 Ω maximum differential resistance at IZ = 5 mA, 5.5 μA maximum reverse current at VR = 7.3 V, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PZU9.1BL datasheet, PZU9.1BL pinout, PZU9.1BL application, or PZU9.1BL equivalent, this page delivers verified electrical parameters, thermal performance data, SOD882 footprint compatibility, and automotive-grade reliability context essential for power rail stabilization, ESD clamp design, and reference voltage generation in embedded control modules.
Technical Context
The PZU9.1BL operates as a two-terminal voltage reference device where reverse-biased breakdown provides stable clamping at 9.1 V under regulated current conditions. Its junction temperature range spans −55 °C to +150 °C, and it sustains non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses.
Thermal resistance from junction to solder point is 55 K/W, enabling effective heat transfer through the cathode pad in FR4 PCB layouts. The device exhibits a positive temperature coefficient of +5.5 mV/K at IZ = 5 mA, supporting predictable drift behavior in temperature-varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V nominal, ±5 % tolerance - ensures stable regulation within 8.65 V to 9.56 V at IZ = 5 mA |
| Differential Resistance (rdif) | ≤6 Ω at IZ = 5 mA - minimizes output voltage variation under load current changes |
| Reverse Current (IR) | ≤5.5 μA at VR = 7.3 V - guarantees low leakage in standby or high-impedance bias networks |
| Non-repetitive Peak Reverse Current (IZSM) | 120 A at tp = 100 μs - supports transient surge suppression without device failure |
| Total Power Dissipation (Ptot) | 250 mW on standard FR4 PCB - defines continuous DC power handling limit at Tamb ≤ 25 °C |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables operation in under-hood automotive and industrial ambient conditions |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test qualification standard for discrete semiconductors |
Pinout & Package
SOD882 is a leadless ultra-small surface-mount plastic package (1.02 mm × 0.62 mm × 0.47 mm) with exposed cathode pad for thermal conduction and marking bar indicating cathode polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; carries reverse breakdown current and serves as primary thermal path to PCB |
| 2 | Anode | Connected to ground or lower-potential reference; completes Zener conduction path during reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| SOD882 ultra-small footprint | 0.62 mm × 1.02 mm outline enables placement in dense power management layouts |
| ±5 % VZ tolerance (B grade) | Meets cost-sensitive industrial regulation requirements without requiring post-assembly trimming |
| Low thermal resistance (Rth(j-sp) = 55 K/W) | Enables reliable 250 mW operation with minimal PCB copper area on single-sided FR4 |
| Non-repetitive peak power (40 W) | Provides robust transient immunity against ESD and load dump events in 12 V systems |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 9.1 V reference for microcontroller ADC inputs and CAN transceiver bias rails in door module ECUs. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp protecting analog front-end circuitry. Use Value: Maintains ADC accuracy across −40 °C to +125 °C ambient while surviving ISO 7637-2 pulse 1/2a surges via 120 A IZSM rating. |
Use Scenario: Providing precise 9.1 V bias for op-amp instrumentation amplifiers measuring 4–20 mA loop signals. IC Role / Device Role / Timing Role: Low-drift voltage reference and noise-filtering element in analog signal chain. Use Value: 6 Ω rdif and +5.5 mV/K SZ enable <10 mV total error over 0–70 °C operating range without calibration. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Clamp |
Use Scenario: Secondary-side voltage sensing in flyback converters with optocoupler feedback loops. IC Role / Device Role / Timing Role: Precision shunt regulator setting output voltage threshold. Use Value: ±5 % VZ tolerance and 250 mW Ptot allow direct integration into compact 5 W adapter designs without heatsinking. |
Use Scenario: Overvoltage protection for analog input channels in portable ultrasound front-ends. IC Role / Device Role / Timing Role: Fast-response clamp limiting transient spikes before sensitive ADC inputs. Use Value: 100 μs surge capability and 5.5 μA IR at 7.3 V prevent false triggering while preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C9V1 | Same 9.1 V nominal, ±5 %, but in SOT23 package (larger footprint, higher Rth(j-a)) | Less suitable for ultra-dense layouts; requires larger PCB area and offers lower surge robustness (IZSM = 40 A) | Select when legacy SOT23 assembly infrastructure exists and thermal constraints are less stringent |
| MMSZ5240B | 9.1 V nominal, ±5 %, in SOD-123 package; higher Ptot (500 mW) but no AEC-Q101 qualification | Not qualified for automotive use; better for industrial power supplies needing higher continuous dissipation | Choose for cost-sensitive non-automotive applications where 500 mW headroom justifies larger 2.7 mm × 1.6 mm footprint |
Compared with BZX84-C9V1 and MMSZ5240B, the PZU9.1BL uniquely combines AEC-Q101 qualification, SOD882 miniaturization, and 120 A surge capability-making it the only option among the three qualified for automotive under-hood voltage regulation with sub-1 mm² board area.
Availability
PZU9.1BL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer power adapters, and medical diagnostic equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for PZU9.1BL 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 specializing in high-performance logic, analog, and discrete components, with leadership in automotive-qualified small-signal devices.
The PZUxBL series was developed specifically for space-constrained, high-reliability voltage regulation in automotive and industrial systems, emphasizing AEC-Q101 compliance, ultra-miniature packaging, and robust transient performance.
FAQ
What is the Zener voltage tolerance for PZU9.1BL?
The PZU9.1BL has a nominal Zener voltage of 9.1 V with ±5 % tolerance (B grade), meaning its actual breakdown voltage falls between 8.65 V and 9.56 V when tested at IZ = 5 mA and Tj = 25 °C. This tolerance is confirmed in Table 8 of the Nexperia datasheet and applies specifically to the PZU9.1BL variant-not the B2-series variants which offer tighter ±2 % tolerance.
Does PZU9.1BL support automotive applications?
Yes, the PZU9.1BL is AEC-Q101 qualified per Section 8 of the Nexperia datasheet, confirming its suitability for automotive applications including engine control units, body electronics, and infotainment power supplies. Its −55 °C to +150 °C junction temperature range and 120 A non-repetitive peak reverse current rating align with ISO 16750-2 environmental and ISO 7637-2 surge requirements.
What is the thermal resistance from junction to solder point for PZU9.1BL?
The PZU9.1BL has a thermal resistance from junction to solder point (Rth(j-sp)) of 55 K/W, as specified in Table 6 of the Nexperia datasheet. This value assumes soldering to an FR4 PCB with tin-plated copper, and reflects heat transfer efficiency primarily through the cathode terminal-critical for maintaining safe junction temperatures at 250 mW continuous dissipation.
How does the temperature coefficient of PZU9.1BL affect regulation stability?
The PZU9.1BL exhibits a temperature coefficient (SZ) of +5.5 mV/K at IZ = 5 mA, as shown in Figure 4 of the datasheet. This positive coefficient means its Zener voltage increases by approximately 5.5 mV per degree Celsius rise in junction temperature-enabling predictable, linear drift that can be compensated in precision reference designs without requiring complex calibration.
What is the maximum reverse current for PZU9.1BL at 7.3 V?
The maximum reverse current (IR) for PZU9.1BL at VR = 7.3 V is 5.5 μA, as specified in Table 8 of the Nexperia datasheet. This low leakage ensures minimal quiescent power draw in high-impedance bias networks and preserves accuracy in precision voltage reference circuits where even nanoamp-level currents impact performance.
PZU9.1BL,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 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:
- DFN1006-2
PZU9.1BL,315 FAQ
1.How can I place an order for PZU9.1BL,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU9.1BL,315 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 PZU9.1BL,315 reliable?
The price and inventory of PZU9.1BL,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU9.1BL,315 is usually 5 days.
3.What payment methods are accepted for PZU9.1BL,315?
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4.How is shipping managed for PZU9.1BL,315?
PZU9.1BL,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU9.1BL,315 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 PZU9.1BL,315?
For technical support, including PZU9.1BL,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU9.1BL,315 requirements.
6.How does Aetrix verify that PZU9.1BL,315 is sourced from the original manufacturer or authorized distributors?
All PZU9.1BL,315 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 PZU9.1BL,315 meets industry standards.
7.What is the process for return or replacement of PZU9.1BL,315?
All PZU9.1BL,315 units undergo pre-shipment inspection (PSI). If there is an issue with PZU9.1BL,315, 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 PZU9.1BL,315 part is unused and in its original packaging.
Return procedure for PZU9.1BL,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU9.1BL,315 Tags
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