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Toshiba Semiconductor and Storage TLP240A(D4,F
- Part No.:
- TLP240A(D4,F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Solid State Relays (SSR)
- Package:
- 4-DIP (0.300", 7.62mm)
- Datasheet:
-
TLP240A(D4,F.pdf
- Description:
- SSR RELAY SPST-NO 500MA 0-60V
- Quantity:
- Payment:
- Shipping:
Inventory:153
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Product details
Overview
TLP240A(D4,F) from Toshiba Electronic Devices & Storage Corporation is a halogen-free, normally-open photorelay IC comprising an infrared LED optically coupled to a photo MOSFET in a 4-pin DIP package. It delivers 5000 Vrms isolation, 60 V OFF-state voltage, ≤2 Ω ON-state resistance, and supports up to 500 mA load current - enabling solid-state replacement of mechanical relays in smart metering and factory automation control circuits.
For engineers reviewing the TLP240A(D4,F) datasheet, TLP240A(D4,F) pinout, TLP240A(D4,F) application, or TLP240A(D4,F) equivalent, key selection criteria include UL/VDE safety certification (EN 60747-5-5 Option D4), trigger LED current ≤3 mA, thermal derating behavior above 60°C, and compatibility with through-hole PCB assembly using 7.62-mm pitch land patterns.
Technical Context
The TLP240A(D4,F) implements optical isolation via GaAs LED-to-MOSFET coupling, with internal drain terminals (pins 3 and 4) shorted to form a single output path. Its reinforced insulation structure meets EN 60747-5-5 requirements for functional safety in industrial control interfaces.
It operates as a two-terminal device: input side (pins 1–2) drives the LED; output side (pins 3–4) switches resistive or low-inductance loads up to 48 V supply, with turn-on/turn-off times of 1 ms / 0.2 ms typical at 5 mA LED drive and 20 V load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 Vrms min - enables reinforced insulation per UL 1577, CSA C22.2 No. 5A, and EN 60747-5-5 (Option D4). |
| OFF-State Output Voltage | 60 V min - supports switching of 48 V DC control lines without breakdown under transient overvoltage. |
| ON-State Resistance | 2 Ω max - limits conduction loss to ≤500 mW at 500 mA, reducing thermal stress in compact layouts. |
| Trigger LED Current | 3 mA max - allows direct drive from low-power microcontroller GPIOs without external amplification. |
| ON-State Current | 500 mA max - handles typical solenoid, indicator lamp, and sensor power-switching loads in FA equipment. |
| Package Pitch | 7.62 mm - matches standard DIP-4 through-hole footprint for legacy board compatibility and manual rework. |
| Creepage/Clearance | 7.0 mm min - satisfies IEC 61800-5-1 pollution degree 2 requirements for industrial motor drives. |
Pinout & Package
Package: 4-pin DIP (TOSHIBA 11-5B2S), through-hole mount, 7.62-mm lead pitch, halogen-free epoxy resin body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Positive input terminal for infrared LED; requires series resistor to limit IF ≤30 mA. |
| 2 | Cathode | LED return path; pins 1 and 2 are electrically isolated from output side but internally shorted as a two-terminal input. |
| 3 | Drain | Power switch output terminal; pins 3 and 4 are shorted internally to form single-channel MOSFET drain node. |
| 4 | Drain | Redundant drain connection - used to reduce trace inductance and improve current sharing in high-reliability PCB layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 5000 Vrms with 7.0 mm creepage/clearance - certified to UL 1577, cUL, VDE EN 60747-5-5 (D4 option), enabling use in mains-connected metering. |
| Low Drive Requirement | ≤3 mA trigger LED current - eliminates need for driver transistors when interfacing with 3.3 V or 5 V logic outputs. |
| Halogen-Free Construction | Meets JIS C 0950 and IEC 61249-2-21 - supports RoHS-compliant manufacturing and end-of-life recycling compliance. |
| Thermal Derating Support | ION derates linearly from 500 mA at 25°C to 325 mA at 60°C (UL 508 mode) - enables predictable lifetime estimation in sealed enclosures. |
| Fast Switching | 1 ms turn-on / 0.2 ms turn-off typical - suitable for PWM-controlled dimming and rapid fault isolation in security systems. |
Applications
| Smart Electricity Meters | Factory Automation I/O Modules |
|---|---|
Use Scenario: Isolated load switching for tariff-based relay control and anti-tampering disconnect functions in Class 0.5S utility meters. IC Role / Device Role / Timing Role: Solid-state output stage replacing electromechanical relays to eliminate contact wear and bounce in 20-year field deployments. Use Value: 5000 Vrms isolation withstands surge testing per IEC 61000-4-5 (Level 4), while 2 Ω RON ensures <1 W self-heating at full 500 mA load. |
Use Scenario: PLC digital output channel driving 24 V DC solenoids, pneumatic valves, and status indicators in harsh industrial environments. IC Role / Device Role / Timing Role: Optically isolated power switch providing galvanic separation between controller logic and field-side actuators. Use Value: 60 V VOFF rating accommodates 24 V nominal + 100 % transient spikes; 3 mA IFT enables direct MCU GPIO drive without level-shifting. |
| Security System Control Panels | Amusement Equipment Logic Interfaces |
Use Scenario: Zone alarm triggering and siren activation in UL-listed intrusion detection panels requiring fail-safe isolation. IC Role / Device Role / Timing Role: Normally-open photorelay ensuring zero leakage current during standby, critical for battery-backed backup operation. Use Value: ≤1000 nA OFF-state current (IOFF) minimizes quiescent drain on backup batteries; VDE certification validates safety-critical reliability. |
Use Scenario: Coin acceptor signal conditioning and prize payout actuation in arcade cabinets exposed to vibration and ESD events. IC Role / Device Role / Timing Role: Input/output isolation barrier protecting main controller from noisy coin mechanism transients. Use Value: 1 ms tON enables responsive game state updates; 7.0 mm creepage prevents arcing across PCB traces in humid operating conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photorelay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP240AF(D4,F) | 8.0 mm creepage/clearance, 10.16-mm pitch DIP package - higher isolation margin but incompatible footprint. | Suitable for new designs targeting EN 62368-1 reinforced insulation in space-constrained consumer electronics. | Select only if redesigning PCB layout to accommodate wider 10.16-mm pitch and increased clearance requirements. |
| PS8501-AX | 4000 Vrms isolation, 40 V VOFF, 350 mA ION, SOIC-4 package - lower isolation rating and surface-mount only. | Better suited for cost-sensitive, non-safety-critical consumer appliances where UL 508 compliance is not required. | Use only when 5000 Vrms and UL/VDE certification are not mandated; not drop-in replaceable due to package and isolation mismatch. |
Compared with TLP240A(D4,F), TLP240AF(D4,F) offers enhanced creepage for tighter safety margins but requires PCB redesign, while PS8501-AX trades isolation robustness for smaller size and lower cost - making TLP240A(D4,F) optimal for retrofitting legacy DIP-4 metering and FA hardware with certified safety.
Availability
TLP240A(D4,F) is available at Aetrix Electronics and suitable for smart electricity meters, factory automation I/O modules, and security system control panels requiring stable component supply with long-term lifecycle assurance.
Supply support for TLP240A(D4,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 high-reliability semiconductor components for industrial, automotive, and infrastructure applications, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The TLP240A(D4,F) belongs to Toshiba's photorelay product line engineered specifically for solid-state replacement of mechanical relays in safety-critical, long-lifecycle applications such as utility metering and industrial control systems.
FAQ
What safety certifications apply to the TLP240A(D4,F)?
The TLP240A(D4,F) carries UL 1577 and cUL recognition (File E67349), UL 508 listing (File E499232), CQC approval to GB4943.1/GB8898, and VDE certification to EN 60747-5-5 and EN 62368-1 - all enabled by the D4 option designation. These approvals validate its use in reinforced insulation applications like electricity meters and industrial controllers where failure could impact personnel safety.
Does the TLP240A(D4,F) support surface-mount assembly?
No - the TLP240A(D4,F) uses a through-hole 4-pin DIP package (TOSHIBA 11-5B2S) with 7.62-mm pitch and is not designed for reflow or wave soldering in SMT processes. For surface-mount alternatives, consider the TLP240A(LF1,F) variant with gull-wing leads, though it lacks the D4 VDE certification unless explicitly ordered with D4 suffix.
What is the maximum continuous load current for TLP240A(D4,F) at 60°C ambient?
Per UL 508-rated specifications, the TLP240A(D4,F) supports 325 mA continuous ON-state current at 60°C ambient temperature, derating linearly from 500 mA at 25°C (−5 mA/°C). This value is validated under thermal saturation conditions and must be applied with appropriate PCB copper area and airflow to maintain junction temperature ≤105°C.
Can pins 3 and 4 of the TLP240A(D4,F) be used independently?
No - pins 3 and 4 are internally shorted drain terminals of the same photo MOSFET die. They are provided for improved current handling and reduced parasitic inductance, not independent switching. Using them separately violates the device's internal architecture and may cause premature failure or inconsistent switching behavior.
How does the halogen-free construction of TLP240A(D4,F) affect PCB assembly?
The halogen-free epoxy resin in TLP240A(D4,F) complies with JIS C 0950 and IEC 61249-2-21, requiring no changes to standard SnPb or lead-free solder profiles. However, peak reflow temperatures must remain ≤260°C for ≤10 seconds (per JEDEC J-STD-020), and post-assembly cleaning should avoid chlorine-based solvents to preserve long-term insulation integrity.
TLP240A(D4,F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TLP240A
- Packaging:
- Tube
- Product Status:
- Active
- Mounting Type:
- Through Hole
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- AC, DC
- Voltage - Input:
- 1.27VDC
- Voltage - Load:
- 0 V ~ 60 V
- Load Current:
- 500 mA
- On-State Resistance (Max):
- 2 Ohms
- Termination Style:
- PC Pin
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 4-DIP
- Approval Agency:
- CQC, cUL, UL, VDE
- Grade:
- -
- Qualification:
- -
TLP240A(D4,F FAQ
1.How can I place an order for TLP240A(D4,F through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP240A(D4,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 TLP240A(D4,F reliable?
The price and inventory of TLP240A(D4,F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLP240A(D4,F is usually 5 days.
3.What payment methods are accepted for TLP240A(D4,F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP240A(D4,F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP240A(D4,F?
TLP240A(D4,F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP240A(D4,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 TLP240A(D4,F?
For technical support, including TLP240A(D4,F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP240A(D4,F requirements.
6.How does Aetrix verify that TLP240A(D4,F is sourced from the original manufacturer or authorized distributors?
All TLP240A(D4,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 TLP240A(D4,F meets industry standards.
7.What is the process for return or replacement of TLP240A(D4,F?
All TLP240A(D4,F units undergo pre-shipment inspection (PSI). If there is an issue with TLP240A(D4,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 TLP240A(D4,F part is unused and in its original packaging.
Return procedure for TLP240A(D4,F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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