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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. TDZ15J,115

Name: TDZ15J,115
Brand: Nexperia USA Inc.
SKU: TDZ15J,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TDZ15J,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-90, SOD-323F

Datasheet:: TDZ15J,115.pdf

Description:: DIODE ZENER 15V 500MW SOD323F

Quantity:: RFQ Add To RFQ list

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Inventory:4,988

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Product details

Overview

TDZ15J,115 from Nexperia is a single AEC-Q101-qualified Zener diode in SOD323F (SC-90) package, designed for precision voltage regulation at 15 V nominal working voltage (14.7–15.3 V), with 200 Ω typical differential resistance at I_Z = 5 mA, 0.05 µA max reverse current at V_R = 11 V, and 500 mW total power dissipation at T_amb ≤ 25 °C - used in automotive body control module voltage reference circuits.

For engineers reviewing the TDZ15J,115 datasheet, TDZ15J,115 pinout, TDZ15J,115 application, or TDZ15J,115 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (25 K/W junction-to-solder-point), non-repetitive peak reverse power (40 W), forward voltage (≤1.1 V at 100 mA), and AEC-Q101 qualification for under-hood automotive use.

Technical Context

This device operates as a two-terminal voltage reference where cathode-anode polarity defines unidirectional reverse-bias conduction. Its Zener breakdown mechanism delivers stable 15 V regulation across 1–10 mA working current, with temperature coefficient of +9.2 to +13 mV/K ensuring predictable drift over −55 to +150 °C ambient range.

Thermal design relies on low R_th(j-sp) = 25 K/W to solder point and FR4 PCB mounting pad (16 mm² cathode pad), enabling reliable operation under transient surges up to 2 A non-repetitive peak reverse current at 100 µs pulse width.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	14.7–15.3 V at I_Z = 5 mA - tight ±2% tolerance enables accurate 15 V rail clamping in automotive sensor supply circuits
Differential Resistance r_dif	200 Ω max at I_Z = 5 mA - low impedance ensures minimal output voltage shift under load variation
Reverse Current I_R	≤0.05 µA at V_R = 11 V - ultra-low leakage preserves battery-backed circuit integrity during sleep mode
Total Power Dissipation P_tot	500 mW at T_amb ≤ 25 °C - defines maximum continuous DC power handling before thermal derating begins
Non-repetitive Peak Reverse Power	40 W at t_p = 100 µs - supports ESD/ISO 7637-2 pulse suppression without failure
Junction Temperature Range	−55 to +150 °C - validated for engine compartment placement per AEC-Q101 stress testing
Forward Voltage V_F	≤1.1 V at I_F = 100 mA - ensures low-loss anode-cathode conduction during fault conditions

Pinout & Package

SOD323F (SC-90) surface-mount plastic package: 2.3–2.7 mm length, 1.15–1.35 mm width, 0.25–0.40 mm height; cathode marked by bar on top surface.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; marking bar identifies this terminal; requires 16 mm² copper pad for thermal management
2	Anode	Connected to ground or lower-potential rail; serves as reference return path during Zener conduction

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive applications including temperature cycling, HTRB, and ESD per JESD22-A114
Low thermal resistance	R_th(j-sp) = 25 K/W enables direct heat transfer to PCB copper, critical for sustained 500 mW operation
Stable temperature coefficient	+9.2 to +13 mV/K minimizes regulation drift across −40 to +125 °C operating range
Small footprint	SOD323F package occupies <1.5 mm² board area - ideal for space-constrained ADAS sensor modules
High surge robustness	Withstands 40 W non-repetitive pulses (100 µs) - meets ISO 7637-2 Pulse 1 & 2 immunity requirements

Applications

Automotive Body Control Module

Industrial Sensor Signal Conditioning

Use Scenario: Regulating 15 V reference for LIN transceiver biasing and microcontroller ADC reference in door module ECUs.

IC Role / Device Role / Timing Role: Zener diode provides stable voltage clamp against load-dump transients and battery voltage fluctuations.

Use Value: ±2% V_Z tolerance and AEC-Q101 qualification ensure functional safety compliance (ISO 26262 ASIL-B support).

Use Scenario: Stabilizing excitation voltage for 4–20 mA loop-powered pressure sensors in factory automation PLC I/O modules.

IC Role / Device Role / Timing Role: Acts as shunt regulator to maintain constant 15 V supply despite varying loop current and cable drop.

Use Value: 0.05 µA max reverse leakage prevents signal offset errors at sub-µA sensor quiescent currents.

USB-C Power Delivery Protection

Medical Infusion Pump Power Monitoring

Use Scenario: Clamping overvoltage on USB-C VBUS line during hot-plug events in portable medical chargers.

IC Role / Device Role / Timing Role: Fast-acting Zener suppresses 20 V+ transients within 100 ns to protect downstream PMICs.

Use Value: 40 W non-repetitive surge rating handles USB PD 3.0 worst-case fault energy without degradation.

Use Scenario: Providing precise 15 V reference for analog front-end op-amps monitoring motor current in infusion pump drive circuits.

IC Role / Device Role / Timing Role: Delivers low-drift voltage reference independent of main 24 V supply variations.

Use Value: +9.2 to +13 mV/K tempco allows calibration compensation over 0–50 °C operating range.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B15,115	Same SOD323F package, ±5% V_Z tolerance (14.25–15.75 V), higher 450 Ω r_dif, no AEC-Q101 qualification	Limited to commercial-grade consumer power supplies; not approved for automotive under-hood use	Select when cost sensitivity outweighs automotive qualification and tighter regulation needs
MMSZ5245B-TP	SOD-123 package (larger footprint), ±5% V_Z, 17 Ω r_dif at 20 mA, 500 mW rating, no AEC-Q101	Better regulation at high current but incompatible with space-constrained SOD323F layouts	Choose only if board redesign permits larger package and lower r_dif justifies layout change

Compared with TDZ15J,115, BZX384-B15,115 trades AEC-Q101 compliance and ±2% accuracy for lower unit cost, while MMSZ5245B-TP offers superior dynamic regulation but sacrifices automotive qualification and board-area efficiency.

Availability

TDZ15J,115 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and medical device power monitoring requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for TDZ15J,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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on automotive, industrial, and mobile applications.

The TDZxJ series targets automotive-grade Zener regulation, engineered specifically for AEC-Q101 compliance, compact SMD integration, and robust transient suppression in harsh environments.

FAQ

What is the maximum continuous reverse power dissipation for TDZ15J,115 at 85 °C ambient?

At T_amb = 85 °C, derating applies: P_tot = 500 mW × (1 − (85 − 25)/125) = 300 mW. This value is calculated using the specified thermal resistance and junction temperature limit of 150 °C, ensuring safe operation without exceeding T_j = 150 °C under steady-state conditions.

Does TDZ15J,115 support reflow soldering only, or can it be hand-soldered?

Reflow soldering is the only recommended method per Nexperia's documentation. Hand-soldering risks thermal damage due to the SOD323F package's low thermal mass and sensitivity to localized overheating; peak reflow profile must not exceed 260 °C for ≤10 seconds to avoid delamination or parametric shift.

How does the temperature coefficient affect regulation accuracy over −40 to +125 °C?

With SZ = +9.2 to +13 mV/K, V_Z increases by approximately 1.5–2.2 V across that range. For example, at 125 °C, V_Z ≈ 15.0 V + (125 − 25) × 0.011 = 16.1 V - a deviation accounted for in automotive system-level calibration routines.

Is the cathode pad required to be 16 mm² for all applications, or only for maximum power handling?

The 16 mm² cathode pad is specified for rated 500 mW dissipation at T_amb ≤ 25 °C. For lower-power applications (<100 mW), smaller pads may suffice, but maintaining the full pad ensures margin for surge events, improves long-term reliability, and complies with AEC-Q101 board-level test requirements.

TDZ15J,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):: 15 V

Tolerance:: ±2%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 10.5 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

TDZ15J,115 FAQ

1.How can I place an order for TDZ15J,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for TDZ15J,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 TDZ15J,115 reliable?

The price and inventory of TDZ15J,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDZ15J,115 is usually 5 days.

3.What payment methods are accepted for TDZ15J,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDZ15J,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TDZ15J,115?

TDZ15J,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TDZ15J,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 TDZ15J,115?

For technical support, including TDZ15J,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDZ15J,115 requirements.

6.How does Aetrix verify that TDZ15J,115 is sourced from the original manufacturer or authorized distributors?

All TDZ15J,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 TDZ15J,115 meets industry standards.

7.What is the process for return or replacement of TDZ15J,115?

All TDZ15J,115 units undergo pre-shipment inspection (PSI). If there is an issue with TDZ15J,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 TDZ15J,115 part is unused and in its original packaging.

Return procedure for TDZ15J,115:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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