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Nexperia USA Inc. TDZ20J,115
- Part No.:
- TDZ20J,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
TDZ20J,115.pdf
- Description:
- DIODE ZENER 20V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:8,602
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Product details
Overview
TDZ20J,115 from Nexperia is a single Zener diode in SOD323F (SC-90) package, designed for precision voltage regulation and overvoltage protection in space-constrained PCBs. It delivers a nominal Zener voltage of 20 V (19.6–20.4 V at IZ = 5 mA), 225 Ω typical differential resistance, 500 mW total power dissipation at Tamb ≤ 25 °C, and AEC-Q101 qualification for automotive use.
For engineers reviewing the TDZ20J,115 datasheet, TDZ20J,115 pinout, TDZ20J,115 application, or TDZ20J,115 equivalent, this device serves as a compact, thermally robust, and automotive-grade voltage reference for low-power rail clamping, ESD protection interface biasing, and feedback loop stabilization in DC-DC converters and sensor signal conditioning circuits.
Technical Context
The TDZ20J,115 operates as a two-terminal voltage reference with cathode-anode polarity defined by a marking bar on the SOD323F body. Its Zener breakdown mechanism provides stable reverse conduction at 20 V with ±0.4 V tolerance and a positive temperature coefficient of +14.0 to +18.0 mV/K - enabling predictable drift behavior across −55 °C to +150 °C ambient range.
Thermal performance is optimized for FR4 PCB mounting: Rth(j-a) = 250 K/W in free air and Rth(j-sp) = 25 K/W to solder point, supporting reliable operation under transient surges up to 1.5 A non-repetitive peak reverse current (IZSM) and 40 W peak power (PZSM) for tp ≤ 100 μs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19.6–20.4 V at IZ = 5 mA - defines precise clamping threshold for 20 V rail protection |
| Differential Resistance (rdif) | 225 Ω max - ensures minimal voltage shift under load variation in regulation circuits |
| Total Power Dissipation (Ptot) | 500 mW at Tamb ≤ 25 °C - sets continuous thermal limit for PCB layout and copper area planning |
| Non-repetitive Peak Reverse Current (IZSM) | 1.5 A - supports transient surge handling in ESD/overvoltage events without failure |
| Temperature Coefficient (SZ) | +14.0 to +18.0 mV/K - enables predictable voltage drift compensation in wide-temperature designs |
| Reverse Leakage (IR) | ≤0.05 μA at VR = 15 V - guarantees ultra-low standby current in battery-powered systems |
| Junction Temperature (Tj) | −55 to +150 °C - validates suitability for under-hood automotive and industrial environments |
Pinout & Package
SOD323F (SC-90) surface-mount plastic package: 2.7 mm × 1.6 mm footprint, 0.65 mm height, cathode marked with bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode | Connected to ground or lower-potential reference; forms reverse-biased junction during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensors |
| Low-profile SOD323F package | Enables high-density routing on compact PCBs without compromising thermal pad access |
| 1.5 A non-repetitive surge capability | Provides robustness against ESD transients per IEC 61000-4-2 Level 4 (±8 kV contact) |
| 25 K/W junction-to-solder-point thermal resistance | Allows efficient heat transfer to PCB copper, reducing thermal derating in enclosed enclosures |
| Stable +14–18 mV/K temperature coefficient | Supports accurate voltage reference design across extended temperature ranges without external compensation |
Applications
| Automotive Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 20 V bias to analog front-end amplifiers in exhaust gas oxygen (EGO) sensors operating at 125 °C under hood. IC Role / Device Role / Timing Role: Zener diode functions as precision shunt reference, maintaining amplifier input common-mode voltage despite battery ripple and load dump transients. Use Value: Ensures <1% gain error over full temperature range due to tight VZ tolerance and predictable +16 mV/K drift. |
Use Scenario: Clamping USB VBUS line against 24 V accidental insertion in industrial docking stations. IC Role / Device Role / Timing Role: Acts as fast-acting shunt protector, diverting surge energy before downstream USB controller ICs are damaged. Use Value: Withstands 40 W peak power for 100 μs without degradation, verified per AEC-Q101 stress testing. |
| Industrial PLC Analog Input Protection | Low-Power IoT Node Reference |
|
Use Scenario: Protecting 4–20 mA current loop receiver inputs from field-induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Zener diode limits input voltage to 20 V, preventing op-amp saturation and ADC clipping during lightning-induced transients. Use Value: Differential resistance of 225 Ω minimizes signal distortion during clamping, preserving measurement accuracy to ±0.1% FS. |
Use Scenario: Supplying stable 20 V reference for lithium-thionyl chloride battery monitoring in remote asset trackers. IC Role / Device Role / Timing Role: Functions as low-leakage (≤0.05 μA) voltage reference enabling 10-year battery life in sleep mode. Use Value: Ultra-low IR ensures <0.5 μA total quiescent current draw, meeting EN 300 220-1 low-power radio compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B20,115 | Same SOD323F package, but 20 V VZ tolerance ±5% (vs. ±2% for TDZ20J), higher rdif (300 Ω max) | Limited to non-automotive consumer applications due to lack of AEC-Q101 qualification | Select when cost sensitivity outweighs automotive reliability requirements |
| MMSZ5248ET1G | SOD-123 package (larger footprint), 20 V VZ tolerance ±5%, Ptot = 500 mW, no AEC-Q101 rating | Requires additional PCB area; unsuitable for space-constrained automotive modules | Choose only if legacy SOD-123 footprint compatibility is mandatory |
Compared with BZX384-B20,115 and MMSZ5248ET1G, the TDZ20J,115 uniquely combines AEC-Q101 qualification, ±2% VZ tolerance, and SOD323F miniaturization - making it the sole option for next-generation automotive ECUs requiring both size reduction and functional safety compliance.
Availability
TDZ20J,115 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, USB-C port protection circuits, and low-power IoT reference designs requiring stable component supply with guaranteed long-term continuity.
Supply support for TDZ20J,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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The TDZxJ series targets space-constrained, thermally demanding applications in automotive and industrial electronics - delivering AEC-Q101-compliant Zener diodes with enhanced surge robustness and tight voltage tolerances in ultra-small SMD packages.
FAQ
What is the maximum non-repetitive peak reverse power dissipation for TDZ20J,115?
The TDZ20J,115 has a non-repetitive peak reverse power dissipation (PZSM) of 40 W for pulse durations ≤100 μs, tested on FR4 PCB with single-sided copper and 16 mm² cathode pad. This value is derived from its 1.5 A IZSM rating and 20 V VZ, and is validated per IEC 60134 limiting values.
Does TDZ20J,115 require heatsinking for continuous 500 mW operation?
No external heatsink is required, but PCB layout must provide ≥16 mm² tin-plated copper area connected to the cathode pad. At Tamb = 25 °C, the device achieves 500 mW dissipation with Rth(j-a) = 250 K/W; above 25 °C ambient, derating follows the 5 mW/°C slope specified in the thermal characteristics table.
How does the temperature coefficient affect regulation accuracy at 125 °C?
With a typical SZ of +16 mV/K, VZ increases by ~1.6 V from 25 °C to 125 °C (ΔT = 100 K). At 125 °C, VZ shifts to ~21.6 V, remaining within the device's specified 19.6–20.4 V band only at 25 °C - so system-level calibration or compensation is needed for high-accuracy applications across full temperature range.
Can TDZ20J,115 replace TDZ20C in existing designs?
No - TDZ20C uses SOD123 package (3.7 mm × 1.6 mm) with different thermal resistance (Rth(j-a) ≈ 300 K/W) and 20 V VZ tolerance ±5%. The TDZ20J,115's smaller SOD323F footprint, tighter ±2% tolerance, and AEC-Q101 qualification require PCB land pattern and reliability validation updates before substitution.
TDZ20J,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TDZxJ
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 14 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
TDZ20J,115 FAQ
1.How can I place an order for TDZ20J,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDZ20J,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 TDZ20J,115 reliable?
The price and inventory of TDZ20J,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDZ20J,115 is usually 5 days.
3.What payment methods are accepted for TDZ20J,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDZ20J,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDZ20J,115?
TDZ20J,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDZ20J,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 TDZ20J,115?
For technical support, including TDZ20J,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDZ20J,115 requirements.
6.How does Aetrix verify that TDZ20J,115 is sourced from the original manufacturer or authorized distributors?
All TDZ20J,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 TDZ20J,115 meets industry standards.
7.What is the process for return or replacement of TDZ20J,115?
All TDZ20J,115 units undergo pre-shipment inspection (PSI). If there is an issue with TDZ20J,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 TDZ20J,115 part is unused and in its original packaging.
Return procedure for TDZ20J,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TDZ20J,115 Tags
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