My Inquiry
My Account
Nexperia USA Inc. PDZ20BGWX
- Part No.:
- PDZ20BGWX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
PDZ20BGWX.pdf
- Description:
- DIODE ZENER 20V 365MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,330
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDZ20BGWX from Nexperia is a single Zener diode in SOD123 package, designed for precision voltage regulation and reference applications with nominal Zener voltage of 20 V at 5 mA, ±2 % tolerance (B-series), 100 Ω maximum differential resistance, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDZ20BGWX datasheet, PDZ20BGWX pinout, PDZ20BGWX application, or PDZ20BGWX equivalent, this device supports stable low-power voltage clamping in power supply feedback loops, overvoltage protection circuits, and analog reference design where tight voltage tolerance and thermal stability are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 19.52 V to 20.39 V at IZ = 5 mA, exhibiting a temperature coefficient of +15.0 mV/K to +16.4 mV/K - indicating positive drift with junction temperature rise. Its low reverse current (≤0.05 μA at VR = 15 V) ensures minimal leakage in high-impedance bias networks.
The device delivers non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses and maintains total power dissipation ≤365 mW at Tamb ≤25 °C on standard FR4 PCB. Thermal resistance from junction to ambient is 340 K/W in free air, enabling reliable operation in compact surface-mounted designs without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 19.52 V to 20.39 V at IZ = 5 mA - defines precise clamping threshold for 20 V nominal regulation |
| Tolerance | ±2 % (B-series) - enables accurate voltage reference without post-production trimming |
| Differential Resistance rdif | ≤100 Ω - ensures minimal voltage shift under load current variation in feedback paths |
| Reverse Current IR | ≤0.05 μA at VR = 15 V - preserves signal integrity in high-impedance sensing or biasing nodes |
| Thermal Resistance Rth(j-a) | 340 K/W - determines self-heating rise per watt in unmounted or low-copper layouts |
| Non-repetitive Peak Power PZSM | 40 W (tp = 100 μs) - supports transient surge suppression in ESD-coupled lines |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
SOD123 surface-mount plastic package: 2.80 mm × 1.70 mm footprint, 1.3 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; polarity must match reverse-bias configuration in clamp/regulator circuits |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms current path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 100 Ω max ensures <100 mV deviation across 1 mA load change - critical for stable feedback references |
| ±2 % voltage tolerance | B-series grading eliminates need for external calibration in mid-precision voltage monitoring |
| AEC-Q101 qualification | Validated for automotive underhood environments (−40 °C to +125 °C operating range) |
| Small SOD123 footprint | Enables placement near IC power pins for localized voltage clamping without board real estate penalty |
| Low reverse leakage | 0.05 μA at 15 V allows use in battery-powered sensor bias networks with multi-year shelf life |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Voltage reference for ADC input scaling in LIN bus-connected door module sensors. IC Role / Device Role / Timing Role: Zener provides stable 20 V reference to op-amp gain stage driving 12-bit SAR ADC. Use Value: ±2 % tolerance and +15.7 mV/K tempco enable <0.5 % full-scale error across −40 °C to +85 °C ambient. |
Use Scenario: Overvoltage clamp on 24 V industrial analog input channel exposed to field wiring transients. IC Role / Device Role / Timing Role: Fast-acting shunt regulator limiting input to 20.4 V before protection IC triggers. Use Value: 40 W non-repetitive pulse rating absorbs 100 μs surges up to 200 V without degradation. |
| Medical Patient Monitor Power Rail | Consumer Smart Home Hub LDO Feedback |
|
Use Scenario: Precision bias voltage for photodiode transimpedance amplifier in pulse oximetry front-end. IC Role / Device Role / Timing Role: Low-leakage Zener sets virtual ground at 20 V, minimizing dark-current error. Use Value: 0.05 μA reverse current prevents >1 nA offset injection into high-gain TIA node. |
Use Scenario: Feedback divider reference for adjustable 3.3 V LDO supplying Wi-Fi SoC in battery-backed hub. IC Role / Device Role / Timing Role: Provides stable 20 V node to set LDO output via resistor ratio, independent of input ripple. Use Value: 100 Ω rdif limits output variation to <33 mV when load current shifts 330 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C20 | Same 20 V nominal, ±5 % tolerance, SOT23 package, higher rdif (120 Ω), not AEC-Q101 qualified | Limited to commercial-grade consumer products; unsuitable for automotive or medical safety-critical rails | Select when cost sensitivity outweighs tolerance and qualification requirements |
| MMSZ5249B | 20 V nominal, ±5 %, SOD123, 150 Ω rdif, no AEC-Q101, lower PZSM (25 W) | Acceptable for non-automotive industrial clamping but lacks thermal stability data above 105 °C | Choose only if legacy BOM reuse is mandatory and AEC-Q101 compliance is not required |
Compared with BZX84-C20 and MMSZ5249B, PDZ20BGWX offers tighter tolerance, lower dynamic impedance, and automotive qualification - making it the sole option for designs requiring traceable reliability in temperature-varying environments.
Availability
PDZ20BGWX is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, medical patient monitor power rails, and consumer smart home hub LDO feedback networks requiring stable component supply with guaranteed long-term sourcing.
Supply support for PDZ20BGWX 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 logic, discrete, and MOSFET devices with focus on efficiency, reliability, and miniaturization for automotive, industrial, and mobile markets.
PDZ-GW series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for robust voltage reference and clamping in harsh-environment automotive electronics and high-reliability industrial systems.
FAQ
What is the maximum continuous power dissipation for PDZ20BGWX at 70 °C ambient?
At Tamb = 70 °C, derated power is calculated using Ptot = 365 mW − [(70 − 25) × (365 mW / 125 °C)] = 212 mW. This value assumes standard FR4 PCB mounting with single-sided copper and tin plating, per datasheet condition [2]. Exceeding this risks thermal runaway.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
With SZ = +15.0 to +16.4 mV/K, VZ increases ~1.25 V across the full range. At 125 °C, VZ ≈ 20.39 V + (100 K × 0.0157 V/K) = 21.96 V. Designers must account for this drift in closed-loop feedback or use compensation networks.
Can PDZ20BGWX replace PDZ20B in existing SOD123 footprints?
Yes - PDZ20BGWX is a direct replacement for PDZ20B with identical SOD123 mechanical dimensions, pinout, and electrical specifications. The 'X' suffix denotes tape-and-reel packaging per ordering code; no functional or thermal differences exist.
What is the minimum recommended solder pad size for reflow compatibility?
The datasheet specifies a 2.36 mm × 1.11 mm copper pad for cathode and 0.81 mm × 0.91 mm for anode, with 0.91 mm solder mask opening. Using these dimensions ensures proper wetting, thermal transfer, and mechanical reliability during JEDEC J-STD-020-compliant reflow profiles.
PDZ20BGWX 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):
- 20 V
- Tolerance:
- ±2.18%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15 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
PDZ20BGWX FAQ
1.How can I place an order for PDZ20BGWX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ20BGWX 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 PDZ20BGWX reliable?
The price and inventory of PDZ20BGWX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ20BGWX is usually 5 days.
3.What payment methods are accepted for PDZ20BGWX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ20BGWX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ20BGWX?
PDZ20BGWX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ20BGWX 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 PDZ20BGWX?
For technical support, including PDZ20BGWX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ20BGWX requirements.
6.How does Aetrix verify that PDZ20BGWX is sourced from the original manufacturer or authorized distributors?
All PDZ20BGWX 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 PDZ20BGWX meets industry standards.
7.What is the process for return or replacement of PDZ20BGWX?
All PDZ20BGWX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ20BGWX, 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 PDZ20BGWX part is unused and in its original packaging.
Return procedure for PDZ20BGWX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ20BGWX Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
