My Inquiry
My Account
Microchip Technology USB50415E3/TR7
- Part No.:
- USB50415E3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
USB50415E3/TR7.pdf
- Description:
- TVS DIODE 15VWM 32VC SOT143
- Quantity:
- Payment:
- Shipping:
Inventory:2,098
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
USB50415E3/TR7 from Microsemi is a unidirectional transient voltage suppressor (TVS) array in SOT-143 package, designed to protect one USB data line against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges. It features 15 V standoff voltage (VWM), 24 V clamping voltage at 1 A, 32 V clamping at 5 A, 3 pF capacitance, and 500 W peak pulse power for 8/20 µs transients - enabling high-speed USB 2.0 signal integrity protection.
For engineers reviewing the USB50415E3/TR7 datasheet, USB50415E3/TR7 pinout, USB50415E3/TR7 application, or USB50415E3/TR7 equivalent, key selection criteria include unidirectional polarity, low 3 pF line capacitance for <900 Mbps USB data rates, IEC-compliant surge immunity, RoHS-compliant matte-tin terminations, and SOT-143 footprint compatibility with board-level ESD hardening requirements.
Technical Context
This TVS array operates as a voltage-clamped shunt protector: it remains non-conductive below 15 V (VWM), triggers at minimum 16.7 V (V(BR)), and clamps transients to ≤24 V at 1 A and ≤32 V at 5 A. Its ultra-low 3 pF capacitance ensures minimal signal distortion on high-speed differential lines.
Designed for single-line unidirectional protection, it uses a PN-junction structure with anode-cathode configuration - pin 1 is cathode, pin 3 is anode, pins 2 and 4 are ground - enabling asymmetric clamping suitable for USB D+ or D− line protection without signal inversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 15.0 V - maximum continuous DC operating voltage before conduction begins; must exceed USB data line's nominal voltage. |
| V(BR) min @ 1 mA | 16.7 V - guaranteed breakdown threshold ensuring reliable triggering above system operating voltage. |
| VC @ 1 A | 24 V - clamping voltage limiting transient energy delivered to downstream USB transceiver during 1 A surge. |
| VC @ 5 A | 32 V - worst-case clamping under high-energy 5 A 8/20 µs surge, preserving logic-level compatibility. |
| Capacitance @ 1 MHz | 3 pF - enables <900 Mbps USB 2.0 data rates with negligible signal rise-time degradation. |
| Peak Pulse Power | 500 W @ 8/20 µs - meets IEC 61000-4-2 Level 4 (±15 kV contact) and IEC 61000-4-4 burst immunity. |
| Leakage Current @ VWM | ≤1 µA - prevents loading of high-impedance USB receiver inputs during normal operation. |
Pinout & Package
SOT-143 surface-mount package with 4 terminals: molded plastic body, tin-lead or RoHS-compliant matte-tin plating, pin 1 identified by dot marking, weight ≈0.035 g, and JEDEC-standard thermal profile (260 °C for 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected signal line (e.g., USB D+); conducts when transient exceeds V(BR). |
| Pin 2 | GND | Primary ground reference for clamping path; tied to PCB ground plane for low-inductance return. |
| Pin 3 | Anode | Connected to system ground; completes shunt path during overvoltage events. |
| Pin 4 | GND | Secondary ground terminal; reduces package inductance and improves high-frequency clamping response. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional protection architecture | Enables asymmetric clamping ideal for single-ended USB data lines without affecting DC bias. |
| 3 pF line capacitance | Preserves USB 2.0 signal integrity up to 480 Mbps with <1% rise-time degradation. |
| IEC 61000-4-2 & -4-4 compliance | Validated for ±15 kV contact / ±8 kV air discharge ESD and 4 kV EFT bursts per standard test waveforms. |
| RoHS-compliant e3 marking | Meets EU Directive 2011/65/EU with annealed matte-tin terminations and lead-free assembly compatibility. |
| UL 94V-0 flammability rating | Ensures self-extinguishing behavior under fault conditions, supporting safety-certified end equipment. |
Applications
| USB 2.0 Interface Protection | EIA-RS485 Data Links |
|---|---|
Use Scenario: Protecting USB host/device D+ and D− lines against ESD events during cable insertion or handling in portable electronics. IC Role / Device Role: Unidirectional shunt TVS suppressing transients before they reach the USB PHY transceiver. Use Value: Maintains 480 Mbps data throughput while clamping ±15 kV ESD spikes to <32 V, preventing PHY latch-up or damage. | Use Scenario: Safeguarding RS485 transceiver inputs in industrial automation nodes exposed to long cable runs and ground potential differences. IC Role / Device Role: Single-line unidirectional clamp on A or B bus line to limit common-mode surges induced by nearby switching loads. Use Value: Enables reliable 5 Mbps operation with 3 pF loading and 500 W surge handling, avoiding false toggling or receiver saturation. |
| 10BASE-T Ethernet PHY | HSIC Interface Protection |
Use Scenario: Board-level ESD hardening of 10BASE-T transformer-coupled TX/RX pairs in embedded network controllers. IC Role / Device Role: Line-specific unidirectional TVS placed between magnetics and PHY to absorb fast transients without degrading 10 Mbps signal edges. Use Value: 3 pF capacitance avoids skew between differential pairs; 24 V clamping at 1 A protects PHY I/O cells rated for 3.3 V supply. | Use Scenario: Protecting High-Speed Inter-Chip (HSIC) USB 2.0 derivative interfaces in mobile SoC-to-peripheral connections (e.g., AP-to-camera). IC Role / Device Role: Low-capacitance shunt device on HSIC D+ line to suppress ESD without violating 480 Mbps timing budgets. Use Value: Sub-3 pF effective capacitance ensures <10 ps jitter contribution, meeting HSIC eye diagram mask requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | DO-214AC package, 15 V VWM, 24.4 V VC @ 1 A, 19.3 pF capacitance | Higher capacitance limits use to ≤10 Mbps interfaces; larger footprint requires PCB redesign | Select only if SOT-143 space constraints are not critical and lower cost outweighs signal integrity impact |
| SP1003-010 | SOD-323 package, 12 V VWM, 20 V VC @ 1 A, 0.6 pF capacitance | Lower VWM restricts use to 3.3 V systems; smaller size suits ultra-dense layouts but lacks 500 W rating | Prefer for 3.3 V USB OTG ports where sub-1 pF loading is mandatory and surge levels are <300 W |
Compared with SMAJ15A and SP1003-010, USB50415E3/TR7 uniquely balances 15 V standoff, 3 pF capacitance, and 500 W surge rating in SOT-143 - making it optimal for USB 2.0 and RS485 designs requiring both speed and robustness without layout compromise.
Availability
USB50415E3/TR7 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial RS485 networks, and 10BASE-T Ethernet PHY hardening requiring stable component supply across production lifecycles.
Supply support for USB50415E3/TR7 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
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened ICs for aerospace, defense, and industrial markets.
The USB504xx family was developed specifically for board-level ESD and surge protection of high-speed serial interfaces - prioritizing low capacitance, precise clamping, and compact SOT-143 packaging for USB, RS485, and Ethernet applications.
FAQ
What is the polarity configuration of USB50415E3/TR7?
USB50415E3/TR7 is a unidirectional TVS array with cathode on pin 1 and anode on pin 3. This configuration allows it to protect only positive-going transients on the signal line while remaining non-conductive during normal 15 V DC operation. The device must be oriented with pin 1 toward the protected line and pins 2/4 grounded. USB50415E3/TR7 does not conduct reverse surges - bidirectional protection requires USB50415CE3/TR7.
Does USB50415E3/TR7 meet IEC 61000-4-2 Level 4 ESD requirements?
Yes, USB50415E3/TR7 is rated for 500 W peak pulse power under the 8/20 µs waveform, which exceeds the energy thresholds required for IEC 61000-4-2 Level 4 (±15 kV contact discharge). Its 24 V clamping voltage at 1 A ensures downstream USB transceivers receive less than 24 V during such events. USB50415E3/TR7 has been validated per this standard in Microsemi's characterization reports.
What is the maximum data rate supported by USB50415E3/TR7?
USB50415E3/TR7 supports up to 900 Mbps, as confirmed in the manufacturer's Applications/Benefits section. Its 3 pF capacitance minimizes signal distortion on high-speed lines, making it suitable for full-speed USB 2.0 (480 Mbps) and HSIC derivatives. Signal integrity testing shows <1% rise-time degradation at 500 Mbps, confirming USB50415E3/TR7's suitability for these protocols.
Can USB50415E3/TR7 be used for bidirectional signal lines like RS485 A/B?
No - USB50415E3/TR7 is strictly unidirectional and protects only positive transients relative to ground. For RS485 differential lines, two devices are needed per line (one per polarity) or a bidirectional variant like USB50415CE3/TR7 should be selected. Using USB50415E3/TR7 on a bidirectional line risks failure during negative transients, as it will not clamp below ground.
What does the "e3" suffix in USB50415E3/TR7 signify?
Per the manufacturer's Part Nomenclature table, the "e3" suffix indicates RoHS-compliant construction with annealed matte-tin terminations and lead-free compatible plating. It replaces legacy tin-lead finishes and satisfies EU Directive 2011/65/EU. The "TR7" denotes tape-and-reel packaging per EIA-481-1-A standard with 7-inch reels - a detail confirmed in the Mechanical and Packaging section.
USB50415E3/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- TO-253-4, TO-253AA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 32V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143
USB50415E3/TR7 FAQ
1.How can I place an order for USB50415E3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for USB50415E3/TR7 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 USB50415E3/TR7 reliable?
The price and inventory of USB50415E3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for USB50415E3/TR7 is usually 5 days.
3.What payment methods are accepted for USB50415E3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for USB50415E3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for USB50415E3/TR7?
USB50415E3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your USB50415E3/TR7 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 USB50415E3/TR7?
For technical support, including USB50415E3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your USB50415E3/TR7 requirements.
6.How does Aetrix verify that USB50415E3/TR7 is sourced from the original manufacturer or authorized distributors?
All USB50415E3/TR7 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 USB50415E3/TR7 meets industry standards.
7.What is the process for return or replacement of USB50415E3/TR7?
All USB50415E3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with USB50415E3/TR7, 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 USB50415E3/TR7 part is unused and in its original packaging.
Return procedure for USB50415E3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
USB50415E3/TR7 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
