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Nexperia USA Inc. PDZ6.2B-QX
- Part No.:
- PDZ6.2B-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ6.2B-QX.pdf
- Description:
- DIODE ZENER 6.2V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,543
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Product details
Overview
PDZ6.2B-QX from Nexperia is a single Zener diode designed for precision voltage regulation in low-power circuits, featuring a nominal Zener voltage of 6.2 V (min 6.06 V, max 6.33 V) at IZ = 5 mA, ±2 % tolerance, 80 Ω typical differential resistance, and 0.5 μA maximum reverse leakage at VR = 4.3 V - used in automotive ECU power rail clamping and sensor reference stabilization.
For engineers reviewing the PDZ6.2B-QX datasheet, PDZ6.2B-QX pinout, PDZ6.2B-QX application, or PDZ6.2B-QX equivalent, key selection criteria include Zener voltage accuracy at low test current (5 mA), thermal coefficient (+2.7 mV/K), SOD323 package compatibility with high-density PCB layouts, and AEC-Q101 qualification for under-hood electronics.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load currents by conducting reverse breakdown current above its specified VZ. Its hard breakdown knee and low dynamic impedance (80 Ω typ. at 5 mA) ensure minimal voltage deviation under transient load shifts.
Designed for surface-mount use on FR4 PCBs with standard footprint, it delivers 400 mW total power dissipation at Tamb ≤ 25 °C and supports junction temperatures up to +150 °C - validated per AEC-Q101 stress testing for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.06 V to 6.33 V at IZ = 5 mA - defines precise clamping threshold for 5 V–6.3 V logic rails |
| Differential Resistance rdif | 80 Ω typical at IZ = 5 mA - ensures <10 mV output shift per 0.1 mA load change |
| Reverse Leakage IR | 0.5 μA max at VR = 4.3 V - prevents parasitic current draw in battery-powered standby modes |
| Temperature Coefficient SZ | +2.7 mV/K at IZ = 5 mA - enables predictable drift compensation in temperature-varying environments |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - allows use as low-drop rectifier or polarity protection element |
| Total Power Dissipation Ptot | 400 mW at Tamb = 25 °C on FR4 PCB - sets thermal derating limit for compact board designs |
| Junction-to-Ambient Rth(j-a) | 340 K/W - determines required copper area and airflow for thermal management |
Pinout & Package
PDZ6.2B-QX uses the SOD323 (SC-76) plastic surface-mount package: 2-pin, 1.35 mm × 0.8 mm body, 0.45 mm pitch, cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; reverse-biased during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensors |
| Hard breakdown knee | Enables sharp, repeatable turn-on without soft saturation - critical for overvoltage detection |
| Low leakage at low VR | 0.5 μA max at 4.3 V supports energy-sensitive systems like tire pressure monitors |
| Small SOD323 footprint | 0.8 mm × 1.35 mm body enables placement near IC power pins for localized rail stabilization |
| ±2 % VZ tolerance | Reduces need for post-assembly calibration in factory programming fixtures |
Applications
| Automotive ECU Power Rail Clamping | Sensor Reference Voltage Stabilization |
|---|---|
|
Use Scenario: Protecting microcontroller supply inputs against load dump transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Shunt regulator that clamps voltage spikes above 6.33 V by diverting surge current to ground. Use Value: Prevents latch-up or damage to 5 V tolerant I/O pins while maintaining <100 ns response time. |
Use Scenario: Providing stable bias voltage for analog front-end amplifiers in oxygen or temperature sensors. IC Role / Device Role / Timing Role: Low-drift Zener reference source replacing higher-cost bandgap ICs in cost-sensitive modules. Use Value: Delivers ±0.13 V stability over −40 °C to +125 °C due to +2.7 mV/K coefficient and low rdif. |
| USB Port Overvoltage Protection | Industrial PLC Input Signal Conditioning |
|
Use Scenario: Safeguarding USB 2.0 data line receivers from ESD-induced voltage overshoot during hot-plug events. IC Role / Device Role / Timing Role: Fast-acting clamp placed between D+ and ground, activated at 6.2 V breakdown. Use Value: Limits peak voltage to ≤6.33 V with <50 ps delay, preserving signal integrity below 480 Mbps data rates. |
Use Scenario: Level-shifting and noise filtering for 4–20 mA current loop inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Zener-based voltage limiter on op-amp input stage to prevent saturation during field-wiring faults. Use Value: Maintains linear operation under 30 V common-mode surges while consuming <0.5 μA quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C6V2 | Same 6.2 V nominal, but ±5 % tolerance and 100 Ω rdif; not AEC-Q101 qualified | Limited to commercial-grade consumer products; unsuitable for automotive under-hood use | Select when cost is primary constraint and temperature stability is non-critical |
| MMSZ5234B | 6.2 V nominal, ±5 % tolerance, 130 Ω rdif, 100 μA IR at 4.3 V; SOD-123 package (larger footprint) | Higher leakage and looser tolerance reduce accuracy in precision sensor references | Choose only if legacy SOD-123 layout compatibility is mandatory and AEC-Q101 is not required |
Compared with BZX584C6V2 and MMSZ5234B, PDZ6.2B-QX offers tighter voltage tolerance, lower dynamic impedance, and automotive qualification - making it the sole choice where regulatory compliance and thermal stability in compact layouts are essential.
Availability
PDZ6.2B-QX is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, USB port protection circuits, and PLC input conditioning requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PDZ6.2B-QX 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 leadership in automotive-qualified components and advanced packaging technologies.
PDZ6.2B-QX belongs to the PDZ-B-Q series of AEC-Q101-qualified Zener diodes engineered specifically for voltage regulation and transient suppression in harsh automotive and industrial environments.
FAQ
What is the maximum continuous reverse current the PDZ6.2B-QX can handle before thermal failure?
The device supports up to 200 mA continuous forward current, but for Zener operation, the safe continuous reverse current is limited by power dissipation: at 25 °C ambient, IZ must stay ≤64.5 mA to maintain Ptot ≤400 mW (6.2 V × 64.5 mA ≈ 400 mW). Derating applies above 25 °C per Fig. 1's curve.
Does the PDZ6.2B-QX require a series current-limiting resistor in all applications?
Yes - a series resistor is mandatory to limit reverse current and prevent thermal runaway. For example, with a 12 V supply and 6.2 V regulation target, a 100 Ω resistor limits worst-case current to ~58 mA at full VZ, staying within the 400 mW rating and ensuring stable operation.
How does the +2.7 mV/K temperature coefficient affect regulation accuracy over temperature?
At IZ = 5 mA, VZ increases by 2.7 mV per Kelvin rise. From −40 °C to +125 °C (165 K delta), total drift is +445.5 mV - resulting in a VZ range of 6.06 V to 6.775 V. This is acceptable for non-precision clamping but requires compensation in reference designs.
Can PDZ6.2B-QX be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same batch, slight VZ mismatches cause current hogging. Parallel use risks thermal instability and premature failure; instead, select a higher-power Zener or use active regulation.
PDZ6.2B-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B-Q
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 3 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-323
PDZ6.2B-QX FAQ
1.How can I place an order for PDZ6.2B-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ6.2B-QX 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 PDZ6.2B-QX reliable?
The price and inventory of PDZ6.2B-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ6.2B-QX is usually 5 days.
3.What payment methods are accepted for PDZ6.2B-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ6.2B-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ6.2B-QX?
PDZ6.2B-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ6.2B-QX 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 PDZ6.2B-QX?
For technical support, including PDZ6.2B-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ6.2B-QX requirements.
6.How does Aetrix verify that PDZ6.2B-QX is sourced from the original manufacturer or authorized distributors?
All PDZ6.2B-QX 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 PDZ6.2B-QX meets industry standards.
7.What is the process for return or replacement of PDZ6.2B-QX?
All PDZ6.2B-QX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ6.2B-QX, 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 PDZ6.2B-QX part is unused and in its original packaging.
Return procedure for PDZ6.2B-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ6.2B-QX Tags
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