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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Diodes Incorporated D1213A-01WQ-7

Name: D1213A-01WQ-7
Brand: Diodes Incorporated
SKU: D1213A-01WQ-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: D1213A-01WQ-7

Manufacturer:: Diodes Incorporated

Category:: TVS Diodes

Package:: SC-70, SOT-323

Datasheet:: D1213A-01WQ-7.pdf

Description:: DATALINE PROTECTION PP SOT323 T&

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Product details

Overview

D1213A-01WQ from Diodes Incorporated is a single-channel, low-capacitance TVS diode array designed for ESD protection of high-speed data lines. It features 0.85 pF typical channel capacitance, ±8 kV contact / ±15 kV air IEC 61000-4-2 ESD rating, 6 V minimum reverse breakdown voltage, and AEC-Q101 qualification for automotive infotainment interfaces such as HDMI and USB 2.0.

For engineers reviewing the D1213A-01WQ datasheet, D1213A-01WQ pinout, D1213A-01WQ application, or D1213A-01WQ equivalent, key selection criteria include clamping voltage under 10 V at 1 A (positive), leakage <1 µA at 5 V, SOT323 package compatibility, and compliance with automotive PPAP and IATF 16949 manufacturing requirements.

Technical Context

This device implements a dual-diode rail-to-rail configuration between VP (supply) and VN (ground), with CH1 as the protected signal line. Its low dynamic resistance (0.9 Ω) and fast response enable effective transient suppression on high-speed serial links without signal integrity degradation.

The SOT323 package supports FR-4 PCB mounting with defined thermal resistance (625 °C/W) and power dissipation (200 mW). It operates across –65 °C to +150 °C and maintains sub-1 pF input capacitance at 1 MHz, critical for maintaining signal rise time in USB 2.0 (480 Mbps) and HDMI 1.4 applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR (MIN)	6.0 V - Ensures reliable conduction only above system supply rails (e.g., 3.3 V or 5 V), avoiding false triggering during normal operation.
C_T (TYP)	0.85 pF - Preserves signal integrity on 480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4 channels by minimizing capacitive loading.
I_PP (MAX)	5 A - Withstands 8/20 μs surge pulses per IEC 61000-4-5 Level 3, protecting against induced lightning transients.
V_CL1	10.0 V - Clamps positive ESD events to safe levels below IC absolute maximum ratings (e.g., ≤12 V for HDMI receiver inputs).
V_ESD (Contact)	±8 kV - Meets IEC 61000-4-2 Level 4 for direct human-contact discharge in automotive cabin environments.
R_DYN	0.9 Ω - Limits voltage overshoot during fast transients, reducing stress on downstream PHY circuitry.

Pinout & Package

Package: SOT323 - 3-pin surface-mount plastic package with matte tin-plated Alloy 42 lead frame, moisture sensitivity level 1, and UL 94V-0 flammability rating.

Pin/Terminal	Circuit Role	Design Meaning
CH1	Protected signal input	High-speed data line (e.g., HDMI D+ or USB D+); connected to cathode of top diode and anode of bottom diode.
VP	Positive supply rail	Anode connection for top diode; tied to system V_CC (3.3 V or 5 V) to clamp positive transients to VP.
VN	Ground reference	Cathode connection for bottom diode; tied to system ground to clamp negative transients to VN.

Key Features

Feature	Design Value
Rail-to-rail ESD protection topology	Enables bidirectional clamping between VP and VN without external biasing, simplifying layout for single-supply systems.
AEC-Q101 qualified	Validated for automotive temperature range (–40 °C to +125 °C junction), PPAP documentation support, and IATF 16949 manufacturing traceability.
Halogen- and antimony-free "Green" construction	Complies with Diodes' definition: Br < 900 ppm, Cl < 900 ppm (Br+Cl < 1500 ppm), Sb < 1000 ppm - meets global environmental directives.
Low leakage current	±1.0 µA max at 5 V - prevents signal attenuation or DC offset in high-impedance receiver inputs (e.g., HDMI TMDS lines).

Applications

HDMI Interface Protection

USB 2.0 Port Protection

Use Scenario: Protecting HDMI 1.4 TMDS differential pairs in automotive infotainment head units exposed to repeated plug/unplug and cabin ESD events.

IC Role / Device Role / Timing Role: Signal-line TVS array placed directly at connector, clamping transients before they reach HDMI receiver PHY.

Use Value: 0.85 pF capacitance avoids degrading 1.65 GHz signal bandwidth; ±8 kV contact rating ensures reliability over 100,000 mating cycles.

Use Scenario: Shielding USB 2.0 D+/D− lines in vehicle telematics modules from ESD during cable insertion and hot-swap events.

IC Role / Device Role / Timing Role: Unidirectional rail-clamp TVS per data line, referenced to 3.3 V supply and chassis ground.

Use Value: 10.0 V clamping voltage stays below USB 2.0 PHY's 12 V abs max rating; 5 A peak pulse rating handles coupled surges from nearby RF sources.

Automotive Infotainment Console

IEEE 1394 (FireWire) Interface

Use Scenario: ESD hardening of auxiliary video/audio inputs (e.g., AV-in, SD card slot) in center-stack displays operating in harsh thermal environments.

IC Role / Device Role / Timing Role: Single-channel TVS deployed on each analog or digital signal path requiring discrete protection.

Use Value: –65 °C to +150 °C operating range supports under-dash mounting; AEC-Q101 qualification guarantees zero infant mortality in field deployment.

Use Scenario: Protecting legacy FireWire 400 ports in automotive diagnostic tools subjected to workshop ESD events.

IC Role / Device Role / Timing Role: Point-of-entry TVS on each data pair, leveraging low capacitance to preserve 400 Mbps signaling integrity.

Use Value: 0.85 pF CT enables full-speed FireWire eye diagram compliance; ±15 kV air rating covers tool handling in dry industrial settings.

Equivalent & Alternatives

The following parts are listed as comparable options for similar TVS diode array applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMA6J6.0A	Higher capacitance (30 pF), unidirectional, DO-214AC package	Designed for board-level power rail protection, not high-speed data lines	Select only for DC/low-frequency signal paths where capacitance is non-critical
TPD2E001DRYR	0.7 pF typical capacitance, same SOT-5X3 footprint, but rated only to ±8 kV contact (no AEC-Q101)	Targeted at consumer electronics; lacks automotive qualification and PPAP support	Use in non-automotive designs where cost and size are prioritized over automotive compliance

Compared with SMA6J6.0A and TPD2E001DRYR, D1213A-01WQ uniquely balances automotive qualification, sub-1 pF capacitance, and rail-to-rail clamping in SOT323 - making it the only option validated for AEC-Q101-compliant HDMI/USB protection in production vehicles.

Availability

D1213A-01WQ is available at Aetrix Electronics and suitable for automotive infotainment consoles, HDMI interface modules, and USB 2.0 port protection requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 traceability.

Supply support for D1213A-01WQ 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.

The D1213A-01WQ belongs to Diodes' AEC-Q101-qualified TVS diode array product line, engineered specifically for ESD-hardened high-speed serial interfaces in automotive cabins and demanding industrial environments.

FAQ

What is the maximum clamping voltage for negative transients?

The D1213A-01WQ clamps negative transients to –1.7 V at –1 A (8/20 μs waveform), ensuring protected signals remain within safe negative excursion limits for 3.3 V and 5 V logic families. This value is measured between CH1 and VN, and reflects the forward voltage drop of the bottom diode under surge conditions.

Can this device be used on 1.8 V I/O lines?

Yes - the 6 V minimum breakdown voltage provides sufficient margin above 1.8 V rails, and leakage remains ≤1 µA at 1.8 V (extrapolated from 5 V test data). However, clamping will occur at ~10 V, so ensure downstream receivers tolerate that level; verify with actual 1.8 V system testing.

Is the SOT323 package compatible with standard reflow profiles?

Yes - the SOT323 package is rated for moisture sensitivity level 1 (MSL-1) and supports JEDEC J-STD-020 standard reflow profiles, including peak temperatures up to 260 °C. The matte tin finish ensures reliable solder wetting on OSP- or ENIG-finished PCBs.

Does this part require external biasing or pull-up resistors?

No - the D1213A-01WQ uses an internal rail-to-rail configuration requiring only VP (system V_CC) and VN (ground) connections. No external biasing, pull-ups, or series resistors are needed; CH1 connects directly to the protected signal line.

D1213A-01WQ-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: SC-70, SOT-323

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Steering (Rail to Rail)

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 5.5V (Max)

Voltage - Breakdown (Min):: 6V

Voltage - Clamping (Max) @ Ipp:: 10V

Current - Peak Pulse (10/1000µs):: 1A (8/20µs)

Power - Peak Pulse:: -

Power Line Protection:: No

Applications:: HDMI, USB

Capacitance @ Frequency:: 0.85pF @ 1MHz

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

D1213A-01WQ-7 FAQ

1.How can I place an order for D1213A-01WQ-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for D1213A-01WQ-7 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 D1213A-01WQ-7 reliable?

The price and inventory of D1213A-01WQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D1213A-01WQ-7 is usually 5 days.

3.What payment methods are accepted for D1213A-01WQ-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D1213A-01WQ-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for D1213A-01WQ-7?

D1213A-01WQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your D1213A-01WQ-7 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 D1213A-01WQ-7?

For technical support, including D1213A-01WQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D1213A-01WQ-7 requirements.

6.How does Aetrix verify that D1213A-01WQ-7 is sourced from the original manufacturer or authorized distributors?

All D1213A-01WQ-7 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 D1213A-01WQ-7 meets industry standards.

7.What is the process for return or replacement of D1213A-01WQ-7?

All D1213A-01WQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with D1213A-01WQ-7, 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 D1213A-01WQ-7 part is unused and in its original packaging.

Return procedure for D1213A-01WQ-7:

1.Submit a request within 90 days.

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

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