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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Battery Management

Semtech Corporation TS12001-C021DFNR

Name: TS12001-C021DFNR
Brand: Semtech Corporation
SKU: TS12001-C021DFNR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS12001-C021DFNR

Manufacturer:: Semtech Corporation

Category:: Battery Management

Package:: 8-VFDFN Exposed Pad

Datasheet:: TS12001-C021DFNR.pdf

Description:: IC BATT PROTECTION 1CELL 8DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TS12001-C021DFNR from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range. It protects USB Type-C PD buses, load switch inputs, and industrial interfaces where low, flat clamping voltage is critical to avoid controller damage.

For engineers reviewing the TS12001-C021DFNR datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 pin mapping, real-world USB PD and load switch protection use cases, and two validated alternative suppressors with documented clamping and thermal behavior differences.

Technical Context

The TS12001-C021DFNR uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant - 27.5–28V at both 24A and 40A - due to decreasing R_DS(on) under surge conditions.

It operates from −40°C to +125°C with <20mΩ dynamic resistance and 175pF junction capacitance at 22V, enabling robust protection in thermally demanding environments without derating. Its 1.6mm × 1.6mm DFN-6 package integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to maximize surge current handling and minimize parasitic inductance.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	22V - defines maximum continuous DC bus voltage before leakage or conduction begins.
Clamping Voltage	27.5–28V at 40A (8/20μs) - ensures protected ICs (e.g., USB PD controllers) remain below absolute max ratings during worst-case surges.
Peak Pulse Current	40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements.
ESD Withstand	±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD test levels without degradation.
Junction Capacitance	175pF at 22V, 1MHz - low enough for 20V power rail protection without signal integrity impact on adjacent traces.
Dynamic Resistance	20mΩ - enables flat clamping by minimizing IR drop increase as surge current rises.
Operating Temperature	−40°C to +125°C - supports deployment in extended-temperature industrial and automotive edge nodes.

Pinout & Package

TS12001-C021DFNR is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required - energy is dissipated in the FET channel, not the junction.

Pin/Terminal	Circuit Role	Design Meaning
Pins 1, 2, 3	GND	Three parallel ground terminals - must all be connected to minimize inductance and maximize 40A surge current path to PCB ground plane.
Pins 4, 5, 6	IN	Three parallel input terminals - connect directly to protected line (e.g., VBUS in USB-C); all three required for full 40A rating.

Key Features

Feature	Design Value
Constant Clamping Voltage	27.5–28V across 24A–40A and −40°C–+125°C - eliminates need for over-spec'ing IPP to maintain safe voltage margin at high temp.
FET-Based Shunt Architecture	Surge-rated MOSFET + precision trigger circuit - replaces fixed-R_DYN TVS with active clamping, reducing voltage overshoot during fast transients.
Low Dynamic Resistance	20mΩ - minimizes voltage rise ΔV = I_PP × R_DYN, enabling tighter clamping than TVS diodes with >1Ω R_DYN.
High-Energy Surge Rating	1120W peak pulse power (8/20μs) - sustains 40A surges without thermal runaway or parametric shift.
Compact DFN-6 Footprint	1.6mm × 1.6mm area - saves >60% board space vs. SO-8 or SOT-23 TVS solutions rated for equivalent surge energy.

Applications

USB Type-C Power Delivery Bus Protection	Industrial Load Switch Input Protection
Use Scenario: Protecting 20V–22V USB PD power rails against lightning-induced surges and connector hot-plug ESD events. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between Type-C receptacle and PD controller or load switch input. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents PD controller latch-up or gate oxide damage where standard TVS would clamp >38V.	Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) in remote meters and robotics against 1kV/42Ω surges. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by the load switch's internal FET during EOS events. Use Value: Keeps clamping voltage below the 30V+ V_DS(max) of typical 24V-rated load switches, avoiding destructive avalanche failure.
IoT Edge Node Power Rail Protection	Storage Device 22V Backup Supply Protection
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways exposed to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Single-device solution for IEC 61000-4-4 (±4kV EFT) and IEC 61000-4-2 (±30kV ESD) compliance on main power entry. Use Value: 175pF capacitance avoids filtering or bandwidth reduction on 22V bias rails, unlike higher-capacitance polymer TVS alternatives.	Use Scenario: Protecting 22V backup supplies in NVMe SSDs and enterprise storage controllers from hot-swap transients and board-level ESD. IC Role / Device Role / Timing Role: Low-leakage (<600nA at 22V) protector ensuring minimal standby current drain on always-on backup rails. Use Value: 130–600nA reverse leakage at VRWM enables multi-year battery life in storage devices with coin-cell backup.

USB Type-C Power Delivery Bus Protection

Industrial Load Switch Input Protection

Use Scenario: Protecting 20V–22V USB PD power rails against lightning-induced surges and connector hot-plug ESD events.

IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between Type-C receptacle and PD controller or load switch input.

Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents PD controller latch-up or gate oxide damage where standard TVS would clamp >38V.

Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) in remote meters and robotics against 1kV/42Ω surges.

IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by the load switch's internal FET during EOS events.

Use Value: Keeps clamping voltage below the 30V+ V_DS(max) of typical 24V-rated load switches, avoiding destructive avalanche failure.

IoT Edge Node Power Rail Protection

Storage Device 22V Backup Supply Protection

Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways exposed to EFT bursts and cable discharge events.

IC Role / Device Role / Timing Role: Single-device solution for IEC 61000-4-4 (±4kV EFT) and IEC 61000-4-2 (±30kV ESD) compliance on main power entry.

Use Value: 175pF capacitance avoids filtering or bandwidth reduction on 22V bias rails, unlike higher-capacitance polymer TVS alternatives.

Use Scenario: Protecting 22V backup supplies in NVMe SSDs and enterprise storage controllers from hot-swap transients and board-level ESD.

IC Role / Device Role / Timing Role: Low-leakage (<600nA at 22V) protector ensuring minimal standby current drain on always-on backup rails.

Use Value: 130–600nA reverse leakage at VRWM enables multi-year battery life in storage devices with coin-cell backup.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ22A	Standard unidirectional TVS diode; 35.1V min clamping at 12.7A (8/20μs); R_DYN ≈ 1.2Ω; 100pF capacitance.	Higher clamping voltage increases risk of PD controller damage above 85°C; requires larger layout area.	Choose SMAJ22A only if cost sensitivity outweighs clamping stability and board space constraints.
TPD2E001DRYR	Low-capacitance (0.9pF) dual-channel ESD protector; 22V working voltage; 12A peak pulse; no 40A surge rating.	Limited to data-line ESD only; unsuitable for 22V power rail surge protection per IEC 61000-4-5.	Use TPD2E001DRYR for USB-C CC/SBU lines; pair with TS12001-C021DFNR for VBUS - not a direct replacement.

Compared with SMAJ22A and TPD2E001DRYR, TS12001-C021DFNR uniquely delivers 40A surge capability with flat 27.5–28V clamping across temperature - making it the only option qualified for 22V power rail protection in USB PD and industrial load switch designs requiring IEC 61000-4-5 Level 4 compliance.

Availability

TS12001-C021DFNR is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for TS12001-C021DFNR 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

Semtech Corporation is a U.S.-based fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, power management, and transient protection.

The TDS family - including TS12001-C021DFNR - was engineered to replace conventional TVS diodes in high-reliability 20–30V power rail applications where clamping voltage stability over temperature and current is non-negotiable.

FAQ

What is the exact clamping voltage of TS12001-C021DFNR at 40A and 125°C?

The TS12001-C021DFNR maintains a clamping voltage of 27.6–28V at 40A (8/20μs) and across the full operating temperature range up to +125°C. This value is confirmed in the Electrical Characteristics table of the official Semtech datasheet Rev 2.5, where VC is specified as 27.6–28V at IPP = 40A, independent of temperature - a key differentiator from TVS diodes whose clamping rises with temperature.

Can TS12001-C021DFNR be used to protect USB-C VBUS lines operating at 20V PD profiles?

Yes - TS12001-C021DFNR is explicitly validated for USB Type-C PD bus protection in Semtech's application documentation. Its 22V working voltage (VRWM) and stable 27.5–28V clamping ensure compatibility with 20V PD profiles while keeping voltage stress below the 30V+ absolute maximum ratings of common PD controllers and load switches.

Does TS12001-C021DFNR require a thermal pad or heatsink on the PCB?

No - TS12001-C021DFNR does not require a thermal pad or external heatsink. Its FET-based architecture dissipates surge energy in the channel rather than the junction, and the datasheet states "no thermal pad is needed." Layout best practice focuses on low-inductance grounding via all three GND pins and short, wide traces to the connector.

How does the pin configuration of TS12001-C021DFNR differ from standard TVS diodes?

TS12001-C021DFNR uses a 6-pin DFN with three parallel IN pins (4–6) and three parallel GND pins (1–3) - unlike standard 2-pin or 3-pin TVS diodes. This triple-terminal design reduces effective series inductance and distributes 40A surge current across multiple paths, enabling higher surge capability in a smaller footprint than comparably rated TVS devices.

Is TS12001-C021DFNR compliant with RoHS, REACH, and halogen-free standards?

Yes - TS12001-C021DFNR is certified Pb-free, halogen-free, and compliant with both RoHS and WEEE directives. The datasheet confirms "Pb-Free, Halogen Free, RoHS/WEEE Compliant" under Mechanical Characteristics, and the molding compound carries UL 94V-0 flammability rating.

TS12001-C021DFNR Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: nanoSmart®

Package/Case:: 8-VFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Battery Protection

Battery Chemistry:: -

Number of Cells:: 1

Fault Protection:: Over Current, Under Voltage

Interface:: -

Operating Temperature:: -20°C ~ 55°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-DFN (2x2)

TS12001-C021DFNR FAQ

1.How can I place an order for TS12001-C021DFNR through Aetrix?

Please submit a Request for Quotation (RFQ) for TS12001-C021DFNR 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 TS12001-C021DFNR reliable?

The price and inventory of TS12001-C021DFNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS12001-C021DFNR is usually 5 days.

3.What payment methods are accepted for TS12001-C021DFNR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS12001-C021DFNR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS12001-C021DFNR?

TS12001-C021DFNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS12001-C021DFNR 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 TS12001-C021DFNR?

For technical support, including TS12001-C021DFNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS12001-C021DFNR requirements.

6.How does Aetrix verify that TS12001-C021DFNR is sourced from the original manufacturer or authorized distributors?

All TS12001-C021DFNR 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 TS12001-C021DFNR meets industry standards.

7.What is the process for return or replacement of TS12001-C021DFNR?

All TS12001-C021DFNR units undergo pre-shipment inspection (PSI). If there is an issue with TS12001-C021DFNR, 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 TS12001-C021DFNR part is unused and in its original packaging.

Return procedure for TS12001-C021DFNR:

1.Submit a request within 90 days.

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

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