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Toshiba Semiconductor and Storage TLP3145(TP,F
- Part No.:
- TLP3145(TP,F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Solid State Relays (SSR)
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
TLP3145(TP,F.pdf
- Description:
- SSR RELAY SPST-NO 400MA 0-200V
- Quantity:
- Payment:
- Shipping:
Inventory:2,004
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Product details
Overview
TLP3145(TP,F) from Toshiba Electronic Devices & Storage Corporation is a bi-directional photorelay IC comprising an infrared LED optically coupled to a photo MOSFET. It delivers 200 V off-state voltage, ≤2.0 Ω on-state resistance, and 0.4 A max on-state current in a 4-pin SOP package (2.54 mm pitch, 2.1 mm height), enabling mechanical relay replacement in I/O interface boards and factory automation power switching.
For engineers reviewing the TLP3145(TP,F) datasheet, TLP3145(TP,F) pinout, TLP3145(TP,F) application, or TLP3145(TP,F) equivalent, key selection criteria include verified isolation voltage (1500 Vrms), low trigger LED current (≤3 mA), bi-directional conduction capability, and UL/cUL safety certification for industrial control designs.
Technical Context
The TLP3145(TP,F) integrates a GaAs infrared LED and a dual-drain photo MOSFET in a single optically isolated structure. Its internal configuration treats Pins 1–2 as a single anode–cathode pair and Pins 3–4 as a common drain output, supporting bidirectional AC/DC load switching without polarity constraints.
It operates with input forward current up to 30 mA and supports continuous ON-state current of 0.4 A at ≤85°C ambient. The device meets UL 1577 and CSA Component Acceptance requirements, with isolation capacitance of 0.8 pF (typ.) and off-state leakage ≤1 µA at 200 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| OFF-state voltage | 200 V - supports direct switching of 100–200 VAC/DC power lines without external snubbers |
| ON-state resistance | 2.0 Ω (max) - limits conduction loss to ≤320 mW at 0.4 A, reducing thermal stress in compact layouts |
| Trigger LED current | 3 mA (max) - enables direct drive from low-power MCU GPIOs without buffer transistors |
| Isolation voltage | 1500 Vrms (min) - satisfies reinforced insulation requirements for Class I equipment per IEC 61010-1 |
| Turn-on/off time | 0.5 ms (max) - provides deterministic timing for programmable logic-controlled sequencing in ATE systems |
| Off-state capacitance | 100 pF (typ.) - minimizes signal coupling noise in high-impedance analog measurement circuits |
| Operating temperature | −40°C to +110°C - ensures reliable operation in unventilated factory automation enclosures |
Pinout & Package
Package: 4-pin SOP (TOSHIBA designation 11-5H1S), 2.54 mm lead pitch, 2.1 mm height, 0.1 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input - connect to current-limited MCU output or driver stage |
| 2 | Cathode | LED cathode return - referenced to system ground or negative rail |
| 3 | Drain | Output terminal 1 - electrically tied to Pin 4; forms one side of bi-directional switch path |
| 4 | Drain | Output terminal 2 - shorted internally to Pin 3; completes symmetrical load connection |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional switching | Enables AC line control without polarity-sensitive external circuitry or H-bridge complexity |
| Low trigger current | 3 mA max LED current allows direct interfacing with 3.3 V/5 V microcontrollers without level-shifting |
| High isolation integrity | 1500 Vrms withstand and 5×10¹⁰ Ω isolation resistance support safe separation between control and power domains |
| Compact SOP footprint | 2.54 mm pitch matches standard DIP headers; 2.1 mm height enables dense PCB layouts in space-constrained I/O modules |
| UL/cUL recognition | File No. E67349 certifies compliance for end-equipment safety approvals in North America |
Applications
| Automatic Test Equipment (ATE) | Factory Automation (FA) I/O Modules |
|---|---|
Use Scenario: High-speed channel switching in semiconductor test handlers requiring precise timing and galvanic isolation. IC Role / Device Role / Timing Role: Bi-directional solid-state relay replacing electromechanical relays in signal path routing matrices. Use Value: 0.5 ms max switching time enables sub-millisecond test cycle reduction; 100 pF off-capacitance preserves signal fidelity up to 1 MHz. |
Use Scenario: Isolated digital output driving solenoids, valves, and indicator lamps in PLC-based control cabinets. IC Role / Device Role / Timing Role: Power-switching interface between 24 VDC logic controllers and 100–200 VAC field devices. Use Value: 200 V off-state rating eliminates need for external transient suppressors; 0.4 A current capacity supports direct drive of 10 W loads. |
| Measuring Instruments | I/O Interface Boards |
Use Scenario: Range switching and sensor excitation multiplexing in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Precision analog path selector with minimal charge injection and signal distortion. Use Value: Low 1 µA off-state leakage prevents measurement drift in high-impedance (>10 MΩ) front-end circuits. |
Use Scenario: Isolated digital input/output expansion for embedded computers and industrial PCs. IC Role / Device Role / Timing Role: Level-translating, noise-immune interface between host processor and field-side peripherals. Use Value: 1500 Vrms isolation protects host system from ground loops and surge events in harsh electrical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photorelay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PVG612A | Higher 400 V off-state rating but 3.5 Ω RON (max); 5 mA IFT; SO-6 package | Better suited for 240 VAC mains switching; larger footprint requires PCB redesign | Select when higher voltage margin is critical and layout space permits SO-6 |
| PS8501-AX | Lower 100 V VOFF, 0.25 A ION, 3.0 Ω RON; same SOP-4 footprint | Limited to low-voltage DC control; unsuitable for 200 V line switching | Choose only for cost-sensitive 24–48 VDC I/O where voltage headroom is sufficient |
Compared with PVG612A and PS8501-AX, the TLP3145(TP,F) uniquely balances 200 V capability, 0.4 A current handling, and SOP-4 compatibility-making it optimal for retrofitting mechanical relays in existing 100–200 V industrial control PCBs without footprint changes.
Availability
TLP3145(TP,F) is available at Aetrix Electronics and suitable for automatic test equipment, factory automation I/O modules, and measuring instruments requiring stable component supply across multi-year production cycles.
Supply support for TLP3145(TP,F) 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
Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and optoelectronics with focus on reliability and industrial-grade performance.
The TLP3145(TP,F) belongs to Toshiba's photorelay product line, engineered specifically to replace electromechanical relays in high-cycle, space-constrained industrial control and test instrumentation applications.
FAQ
What is the maximum continuous ON-state current rating for TLP3145(TP,F)?
The TLP3145(TP,F) has a maximum continuous ON-state current rating of 0.4 A at ambient temperatures up to +85°C. Derating applies above this temperature: −4.0 mA/°C. This rating is validated under recommended operating conditions with adequate PCB copper area for heat dissipation. Exceeding 0.4 A risks thermal runaway and premature failure of the photo MOSFET die inside the TLP3145(TP,F).
Does TLP3145(TP,F) support AC load switching?
Yes, the TLP3145(TP,F) supports bi-directional AC load switching due to its symmetrical dual-drain MOSFET output structure. Pins 3 and 4 are internally shorted and function as interchangeable terminals, allowing current flow in either direction when the LED is energized. This eliminates polarity concerns in 50/60 Hz AC applications up to 200 V peak, making the TLP3145(TP,F) suitable for solid-state relay replacements in AC-powered factory equipment.
What safety certifications does TLP3145(TP,F) hold?
The TLP3145(TP,F) is UL-recognized under File No. E67349 per UL 1577 and cUL-recognized by CSA Component Acceptance Service No. 5A, also under File No. E67349. These certifications verify its 1500 Vrms isolation withstand capability and construction compliance for use in end equipment requiring reinforced insulation. The TLP3145(TP,F) meets these standards without requiring additional external barrier materials or spacing.
Can TLP3145(TP,F) be driven directly from a 3.3 V microcontroller GPIO?
Yes, the TLP3145(TP,F) can be driven directly from a 3.3 V microcontroller GPIO when used with a series current-limiting resistor. With a maximum trigger LED current of 3 mA and typical forward voltage of 1.65 V at 10 mA, a 470 Ω resistor yields ~4.5 mA at 3.3 V - safely within absolute maximum ratings. This eliminates the need for transistor buffers in most embedded control designs using the TLP3145(TP,F).
What is the isolation capacitance of TLP3145(TP,F), and why does it matter?
The TLP3145(TP,F) has a typical input-to-output isolation capacitance of 0.8 pF, with a maximum of 1.0 pF. This ultra-low value minimizes capacitive coupling noise between control and load sides, preserving signal integrity in sensitive analog measurement circuits and high-speed digital I/O interfaces. In applications like precision multimeters or ATE channel switching, this spec directly enables accurate low-level signal routing without crosstalk-induced errors in the TLP3145(TP,F) implementation.
TLP3145(TP,F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TLP3145
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Mounting Type:
- Surface Mount
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- AC, DC
- Voltage - Input:
- 1.65VDC
- Voltage - Load:
- 0 V ~ 200 V
- Load Current:
- 400 mA
- On-State Resistance (Max):
- 2 Ohms
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 110°C
- Supplier Device Package:
- 4-SOP
- Approval Agency:
- CSA, cUL, UL
- Grade:
- -
- Qualification:
- -
TLP3145(TP,F FAQ
1.How can I place an order for TLP3145(TP,F through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP3145(TP,F 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 TLP3145(TP,F reliable?
The price and inventory of TLP3145(TP,F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLP3145(TP,F is usually 5 days.
3.What payment methods are accepted for TLP3145(TP,F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP3145(TP,F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP3145(TP,F?
TLP3145(TP,F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP3145(TP,F 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 TLP3145(TP,F?
For technical support, including TLP3145(TP,F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP3145(TP,F requirements.
6.How does Aetrix verify that TLP3145(TP,F is sourced from the original manufacturer or authorized distributors?
All TLP3145(TP,F 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 TLP3145(TP,F meets industry standards.
7.What is the process for return or replacement of TLP3145(TP,F?
All TLP3145(TP,F units undergo pre-shipment inspection (PSI). If there is an issue with TLP3145(TP,F, 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 TLP3145(TP,F part is unused and in its original packaging.
Return procedure for TLP3145(TP,F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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