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Nexperia USA Inc. PDZ9.1BGWX
- Part No.:
- PDZ9.1BGWX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
PDZ9.1BGWX.pdf
- Description:
- DIODE ZENER 9.1V 365MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,855
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Product details
Overview
PDZ9.1BGWX from Nexperia is a single Zener diode in SOD123 surface-mount package, designed for precision voltage regulation and reference applications at 9.1 V nominal Zener voltage (IZ = 5 mA), ±2 % tolerance (B-series), 60 Ω max differential resistance, and 0.5 μA max reverse current at VR = 7.3 V. It supports automotive-grade reliability with AEC-Q101 qualification and operates across −55 °C to +150 °C ambient range.
For engineers reviewing the PDZ9.1BGWX datasheet, PDZ9.1BGWX pinout, PDZ9.1BGWX application, or PDZ9.1BGWX equivalent, this device is selected for low-power voltage clamping, overvoltage protection in sensor interfaces, and stable biasing in analog front-ends where tight Zener voltage tolerance and thermal stability are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 9.1 V at 5 mA test current, exhibiting a temperature coefficient of +5.5 mV/K - indicating positive drift with junction temperature rise. Its differential resistance of ≤60 Ω ensures minimal dynamic impedance during regulation, supporting stable output under varying load conditions.
The device features non-repetitive peak reverse power dissipation up to 40 W (tp = 100 μs), total power dissipation of 365 mW (Tamb ≤ 25 °C on standard FR4 PCB), and thermal resistance from junction to ambient of 340 K/W - confirming suitability for compact, thermally constrained PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.85 V to 9.23 V at IZ = 5 mA - defines precise clamping threshold for 9.1 V nominal regulation |
| Tolerance | ±2 % (B-series) - enables high-accuracy voltage references without post-production trimming |
| Differential Resistance rdif | ≤60 Ω - ensures low dynamic impedance for stable regulation under small-signal load variations |
| Reverse Current IR | ≤0.5 μA at VR = 7.3 V - guarantees minimal leakage in standby or low-power monitoring circuits |
| Temperature Coefficient SZ | +5.5 mV/K at IZ = 5 mA - quantifies predictable positive voltage drift with temperature, aiding thermal compensation design |
| Non-repetitive Peak Current IZSM | 3.5 A (tp = 100 μs) - supports transient surge suppression in ESD-coupled signal lines |
| Total Power Dissipation Ptot | 365 mW at Tamb ≤ 25 °C on standard FR4 PCB - sets continuous operating limit for passive thermal management |
Pinout & Package
SOD123 plastic surface-mount package: 2.80 mm × 1.70 mm footprint, 1.3 mm height, cathode marked by bar on top surface. Optimized for reflow soldering per IPC-J-STD-020; requires defined copper pad (3.27 mm × 1.11 mm) and solder paste stencil per Figure 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal - reverse-biased during Zener operation |
| 2 (A) | Anode | Connected to circuit ground or lower-potential rail; completes reverse-bias path for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements - supports deployment in engine control, body electronics, and ADAS sensors |
| ±2 % Zener voltage tolerance | Reduces need for external trimming components in precision reference designs, lowering BOM count and calibration cost |
| Low 0.5 μA reverse current at 7.3 V | Minimizes quiescent power loss in always-on monitoring circuits such as battery voltage supervisors or wake-up detectors |
| 340 K/W junction-to-ambient thermal resistance | Enables reliable operation on standard FR4 PCBs without heatsinking - suitable for space-constrained consumer and industrial modules |
| 40 W non-repetitive peak power rating | Provides robust transient immunity against ESD events (IEC 61000-4-2 Level 4) when used in I/O protection networks |
Applications
| Automotive Sensor Biasing | Industrial Analog Input Protection |
|---|---|
|
Use Scenario: Providing stable 9.1 V reference for MEMS pressure sensor excitation in engine manifold modules. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, maintaining constant bias voltage despite supply ripple and temperature variation. Use Value: ±2 % tolerance and +5.5 mV/K TC enable <±1.5 % total error over −40 °C to +125 °C, meeting ASIL-B functional safety margin. |
Use Scenario: Clamping analog input pins of 16-bit ADCs in PLC analog input cards exposed to field wiring transients. IC Role / Device Role / Timing Role: Shunt protector limiting voltage to 9.1 V before signal conditioning stage, preventing ADC saturation or damage. Use Value: 3.5 A peak current capability absorbs 100 μs surges per IEC 61000-4-4, while 60 Ω rdif maintains signal integrity below 10 kHz bandwidth. |
| Low-Power Battery Monitor Reference | USB-C Port Overvoltage Clamp |
|
Use Scenario: Generating accurate threshold for lithium-ion battery cell voltage detection in portable medical devices. IC Role / Device Role / Timing Role: Precision Zener establishes trip point for comparator-based undervoltage/overvoltage detection circuitry. Use Value: 0.5 μA IR at 7.3 V ensures <50 nW standby power draw - extending battery life in multi-year deployments. |
Use Scenario: Protecting USB-C CC line receiver ICs from accidental 12 V adapter misconnection or hot-swap transients. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess voltage away from sensitive 5 V tolerant PHY inputs. Use Value: SOD123 footprint allows placement within 2 mm of connector, minimizing inductance and enabling sub-10 ns response to 12 V faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C9V1 | Same 9.1 V nominal, ±5 % tolerance, SOT23 package, 300 mW Ptot | Higher tolerance and smaller package reduce thermal margin but improve board density | Select when cost sensitivity outweighs precision; avoid in automotive or wide-temperature industrial use |
| MMSZ5240B | 9.1 V nominal, ±5 % tolerance, SOD123 package, 500 mW Ptot, 100 Ω rdif | Higher power rating but looser tolerance and higher impedance compromise regulation accuracy | Prefer for higher-power clamping where ±5 % VZ is acceptable; not suitable for precision references |
Compared with BZX84-C9V1 and MMSZ5240B, PDZ9.1BGWX delivers tighter ±2 % tolerance and lower 60 Ω impedance in the same SOD123 footprint - making it optimal for automotive and industrial applications requiring stable voltage references across temperature and lifetime.
Availability
PDZ9.1BGWX is available at Aetrix Electronics and suitable for automotive sensor modules, industrial analog input protection, low-power battery monitors, and USB-C port protection requiring stable component supply and AEC-Q101 compliance.
Supply support for PDZ9.1BGWX 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 leading global semiconductor expert delivering high-performance, high-reliability discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.
The PDZ-GW series targets general-purpose and automotive voltage regulation, offering AEC-Q101-qualified Zener diodes with tight tolerances and robust surge handling in compact SMD packages.
FAQ
What is the maximum continuous reverse current the PDZ9.1BGWX can sustain at 25 °C?
The PDZ9.1BGWX is rated for a total power dissipation of 365 mW at Tamb ≤ 25 °C on a standard FR4 PCB. At its nominal Zener voltage of 9.1 V, this corresponds to a maximum continuous reverse current of approximately 40 mA (365 mW ÷ 9.1 V), assuming steady-state DC operation and no additional thermal derating.
How does the +5.5 mV/K temperature coefficient affect regulation accuracy over temperature?
With a +5.5 mV/K temperature coefficient at IZ = 5 mA, the Zener voltage increases by 5.5 mV per Kelvin rise in junction temperature. Over a −40 °C to +125 °C ambient range (ΔT = 165 K), this results in a theoretical shift of +0.908 V - but actual drift is mitigated by the device's low thermal resistance and system-level thermal design, keeping total error within ±1.5 % in validated automotive implementations.
Can PDZ9.1BGWX be used in parallel for higher power handling?
No - Zener diodes exhibit manufacturing variance in VZ and rdif, causing current imbalance when paralleled. Even with matched units, thermal runaway risk remains due to positive temperature coefficient. For higher power, select a single higher-rated Zener (e.g., PZM series) or implement active regulation instead.
Is the SOD123 package compatible with standard reflow profiles for lead-free assembly?
Yes - the PDZ9.1BGWX SOD123 package is qualified for lead-free reflow per IPC-J-STD-020. Recommended profile includes peak temperature of 260 °C for ≤30 seconds, ramp rate ≤3 °C/s, and time above 217 °C of 60–150 seconds. Footprint dimensions (3.27 mm × 1.11 mm Cu pad) and solder paste stencil design must follow Nexperia's Figure 9 specifications.
PDZ9.1BGWX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-GW
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±2.09%
- Power - Max:
- 365 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:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
PDZ9.1BGWX FAQ
1.How can I place an order for PDZ9.1BGWX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ9.1BGWX 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 PDZ9.1BGWX reliable?
The price and inventory of PDZ9.1BGWX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ9.1BGWX is usually 5 days.
3.What payment methods are accepted for PDZ9.1BGWX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ9.1BGWX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ9.1BGWX?
PDZ9.1BGWX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ9.1BGWX 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 PDZ9.1BGWX?
For technical support, including PDZ9.1BGWX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ9.1BGWX requirements.
6.How does Aetrix verify that PDZ9.1BGWX is sourced from the original manufacturer or authorized distributors?
All PDZ9.1BGWX 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 PDZ9.1BGWX meets industry standards.
7.What is the process for return or replacement of PDZ9.1BGWX?
All PDZ9.1BGWX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ9.1BGWX, 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 PDZ9.1BGWX part is unused and in its original packaging.
Return procedure for PDZ9.1BGWX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ9.1BGWX Tags
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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