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onsemi 1PMT5.0AT3G
- Part No.:
- 1PMT5.0AT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5.0AT3G.pdf
- Description:
- TVS DIODE 5VWM 9.2VC POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:6,117
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Product details
Overview
1PMT5.0AT3G from onsemi is a unidirectional Zener transient voltage suppressor (TVS) in the POWERMITE® package, designed for primary overvoltage protection of 5.0 V DC rails. It delivers 200 W peak pulse power (10/1000 µs), clamps at ≤9.2 V @ 21.7 A, and responds in <1 ns to ESD and surge events. Used in smartphone power rails, USB port protection, and low-voltage DC-DC converter inputs.
For engineers reviewing the 1PMT5.0AT3G datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (5.0 V), clamping voltage (9.2 V), surge current rating (21.7 A), thermal resistance (RJcathode = 23 °C/W), and JEDEC DO−216AA-compliant POWERMITE footprint.
Technical Context
This TVS diode operates as a unidirectional clamping device, triggered when reverse voltage exceeds its 5.0 V working peak reverse voltage (VRWM) and 6.4–7.0 V breakdown range (VBR @ 10 mA). Its low Zener impedance and fast <1 ns response enable effective suppression of IEC 61000-4-2 ESD (≥16 kV HBM) and IEC 61000-4-5 surge transients.
The POWERMITE package integrates a full metallic cathode tab acting as both terminal and heatsink, achieving RJcathode = 23 °C/W and enabling 200 W dissipation without external copper. Its 1.1 mm height and 8.45 mm² footprint provide space-constrained board-level protection where SMA or SOD-123 solutions are too tall or large.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage | 5.0 V - Matches nominal 5 V supply rails; ensures no conduction during normal operation. |
| Breakdown Voltage (VBR) | 6.4–7.0 V @ 10 mA - Defines precise turn-on threshold with tight 0.6 V tolerance band. |
| Clamping Voltage (VC) | ≤9.2 V @ 21.7 A - Limits downstream IC stress to safe levels during 200 W transient events. |
| Peak Pulse Power | 200 W @ 10/1000 µs - Supports robust protection against common lightning-induced surges. |
| Response Time | <1 ns - Faster than most microcontroller I/O pin response, ensuring protection precedes damage. |
| ESD Rating | Class 3 HBM (>16 kV) - Meets stringent handheld device electrostatic discharge immunity requirements. |
| Thermal Resistance (Junction-to-Cathode Tab) | 23 °C/W - Enables high-power dissipation via PCB copper pour under cathode tab without thermal derating. |
| Package Footprint | 8.45 mm² (2.05 × 1.75 mm) - 50% smaller than SMA; fits dense portable PCB layouts. |
Pinout & Package
1PMT5.0AT3G uses the POWERMITE® (JEDEC DO−216AA) surface-mount package: a 2-pin, cathode-tab-down design with integral heatsink tabs and full metallic bottom. Cathode is Pin 1 (marked with polarity band); Anode is Pin 2. The cathode tab serves as both electrical terminal and primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Cathode) | High-current return path and thermal interface | Connected to system ground plane; full metallic bottom enables direct thermal coupling to PCB copper pour. |
| Pin 2 (Anode) | Input connection to protected line | Placed in series between transient source (e.g., connector) and protected IC input; carries full surge current. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables precise 5.0 V rail protection without forward conduction during normal operation. |
| Integral cathode heatsink tab | Reduces thermal resistance to 23 °C/W, allowing 200 W pulse handling without external heatsinking. |
| Low-profile 1.1 mm height | Permits use in ultra-thin consumer devices (e.g., smartphones, wearables) where height is constrained. |
| DO−216AA JEDEC registration | Ensures standardized footprint, soldering profile, and mechanical compatibility across suppliers. |
| Pb-free and RoHS-compliant construction | Meets global environmental compliance requirements for industrial and consumer end products. |
Applications
| USB 2.0 Port Protection | Smartphone Battery Input |
|---|---|
Use Scenario: Protects USB data and VBUS lines from ESD events during cable insertion and hot-plug operations. IC Role / Device Role / Timing Role: Unidirectional TVS placed between connector and USB transceiver or PMIC input. Use Value: Clamps transients to ≤9.2 V within <1 ns, preventing latch-up or gate oxide damage in 5 V-tolerant PHYs. |
Use Scenario: Shields battery management ICs from voltage spikes induced by load switching or charger fault conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5 V battery input rail upstream of buck converter. Use Value: Absorbs 200 W surges while maintaining clamping below 9.2 V, preserving Li-ion charging circuit integrity. |
| Industrial Sensor Node Power Rail | POS Terminal Keypad Interface |
Use Scenario: Guards 5 V supply to low-power MCU and analog sensor front-end in factory-floor wireless nodes. IC Role / Device Role / Timing Role: Point-of-entry TVS on main power input before LDO regulator. Use Value: Withstands repeated 10/1000 µs surges per IEC 61000-4-5 Level 3, extending field reliability. |
Use Scenario: Suppresses ESD from user finger contact on membrane keypad traces routed near 5 V logic. IC Role / Device Role / Timing Role: Localized TVS on each keypad scan line connected to microcontroller GPIO. Use Value: 16 kV HBM rating prevents false keypresses or reset events caused by static discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Same 5.0 V VRWM, but SMA package (3.5 mm height, 2× larger footprint); RJA = 500 °C/W vs. 23 °C/W for cathode tab. | Requires more PCB area and less efficient thermal transfer; suitable only where height is not constrained. | Select SMAJ5.0A only if legacy SMA layout exists and thermal performance margin is sufficient. |
| 1.5SMC5.0A | Higher 1500 W peak power (but 1.5 kW rating applies to 10/1000 µs only at TA = 25°C); larger SMC package (7.1 mm × 6.2 mm). | Over-specified for 5 V rail protection; introduces unnecessary size and cost in space-limited designs. | Choose 1.5SMC5.0A only when >200 W surge immunity is required and board space permits. |
Compared with SMAJ5.0A and 1.5SMC5.0A, the 1PMT5.0AT3G delivers identical 5.0 V clamping performance in a 50% smaller footprint and with superior thermal coupling-enabling higher reliability in thermally dense portable electronics without layout redesign.
Availability
1PMT5.0AT3G is available at Aetrix Electronics and suitable for smartphone power rail protection, USB interface hardening, and industrial sensor node surge immunity requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5.0AT3G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1PMT5.0AT3G belongs to onsemi's POWERMITE® TVS diode family, engineered specifically for space-constrained, high-reliability overvoltage protection in portable and battery-powered electronics.
FAQ
What is the working peak reverse voltage (VRWM) of the 1PMT5.0AT3G?
The 1PMT5.0AT3G has a working peak reverse voltage (VRWM) of 5.0 V. This means it remains non-conductive under normal 5 V DC operating conditions and begins clamping only when transient voltage exceeds this threshold. Its specified breakdown voltage range is 6.4–7.0 V at 10 mA test current, ensuring reliable turn-on behavior just above nominal rail voltage.
How does the 1PMT5.0AT3G achieve thermal performance comparable to an SMA package despite its smaller size?
The 1PMT5.0AT3G achieves SMA-equivalent thermal performance through its POWERMITE® package design: the full metallic cathode tab serves as both electrical terminal and direct thermal interface to the PCB. With a measured junction-to-cathode thermal resistance (RJcathode) of 23 °C/W, it transfers heat efficiently into copper pours-unlike SMA packages that rely on leads alone, which exhibit much higher RJA (500 °C/W).
Is the 1PMT5.0AT3G suitable for protecting USB 2.0 data lines?
No-the 1PMT5.0AT3G is a unidirectional TVS rated for 5.0 V VRWM and intended for power rail protection (e.g., VBUS), not signal-line protection. Its capacitance (≈500 pF at zero bias) is too high for USB 2.0 data lines, which require sub-2 pF devices. For D+/D− lines, use low-capacitance TVS arrays such as ESD9X5.0ST5G instead of the 1PMT5.0AT3G.
What is the maximum clamping voltage of the 1PMT5.0AT3G under surge conditions?
The 1PMT5.0AT3G has a maximum clamping voltage (VC) of 9.2 V when subjected to its peak pulse current of 21.7 A (10/1000 µs waveform). This value is guaranteed across temperature and lifetime, ensuring protected downstream components see no more than 9.2 V during worst-case transients-well within the absolute maximum ratings of most 5 V logic and power management ICs.
Does the 1PMT5.0AT3G meet RoHS and lead-free requirements?
Yes-the "G" suffix in 1PMT5.0AT3G explicitly denotes a Pb-free, RoHS-compliant package. The device uses lead-free terminations and conforms to JEDEC J-STD-020 moisture sensitivity level (MSL) 1, with a maximum soldering temperature of 260°C for 10 seconds. Full compliance documentation is available in onsemi's official packaging specifications.
1PMT5.0AT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-216AA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Powermite
1PMT5.0AT3G FAQ
1.How can I place an order for 1PMT5.0AT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5.0AT3G 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 1PMT5.0AT3G reliable?
The price and inventory of 1PMT5.0AT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5.0AT3G is usually 5 days.
3.What payment methods are accepted for 1PMT5.0AT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5.0AT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5.0AT3G?
1PMT5.0AT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5.0AT3G 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 1PMT5.0AT3G?
For technical support, including 1PMT5.0AT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5.0AT3G requirements.
6.How does Aetrix verify that 1PMT5.0AT3G is sourced from the original manufacturer or authorized distributors?
All 1PMT5.0AT3G 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 1PMT5.0AT3G meets industry standards.
7.What is the process for return or replacement of 1PMT5.0AT3G?
All 1PMT5.0AT3G units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5.0AT3G, 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 1PMT5.0AT3G part is unused and in its original packaging.
Return procedure for 1PMT5.0AT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5.0AT3G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
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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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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