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Toshiba Semiconductor and Storage TLP240A(D4,LF1,F
- Part No.:
- TLP240A(D4,LF1,F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Solid State Relays (SSR)
- Package:
- 4-SMD (0.300", 7.62mm)
- Datasheet:
-
TLP240A(D4,LF1,F.pdf
- Description:
- SSR RELAY SPST-NO 500MA 0-60V
- Quantity:
- Payment:
- Shipping:
Inventory:221
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Product details
Overview
TLP240A(D4,LF1,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. It delivers 5000 Vrms isolation, ≤2 Ω ON-state resistance, and ≤3 mA trigger LED current in a 4-pin DIP through-hole package - designed for mechanical relay replacement in smart meters and factory automation systems.
For engineers reviewing the TLP240A(D4,LF1,F datasheet, TLP240A(D4,LF1,F pinout, TLP240A(D4,LF1,F application, or TLP240A(D4,LF1,F equivalent, this page provides verified electrical specs, safety-certified insulation data, switching timing (1 ms turn-on), thermal derating curves, and VDE-compliant EN 60747-5-5 option (D4) validation.
Technical Context
The TLP240A(D4,LF1,F implements optical isolation via GaAs LED-to-MOSFET coupling with internal photodiode array driving dual-channel MOSFETs configured as a single-pole, single-throw (1-Form-A) switch. Its reinforced insulation structure meets UL 1577, UL 508, and VDE EN 60747-5-5 requirements when ordered with Option (D4).
It operates with input forward current up to 30 mA and supports continuous output current up to 500 mA at ≤60 V OFF-state voltage. Thermal derating applies above 25 °C: ON-state current decreases by 5 mA/°C, and junction temperature is limited to 105 °C under UL 508 conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 Vrms min - enables reinforced insulation per UL 1577 and EN 60747-5-5 for mains-connected metering and FA equipment. |
| ON-State Resistance | 2 Ω max at 500 mA - ensures low conduction loss and minimal self-heating in 24 V DC control loads. |
| Trigger LED Current | 3 mA max - allows direct drive from low-power microcontrollers without external amplification. |
| OFF-State Output Voltage | 60 V min - supports safe switching of industrial 24–48 V DC control circuits. |
| Turn-On Time | 3 ms max - meets timing requirements for PLC I/O modules and security system actuation. |
| Creepage/Clearance | 7.0 mm min (TLP240A) - satisfies IEC 61000-4-5 surge immunity and pollution degree 2 layout rules. |
| Halogen-Free Package | Compliant per Toshiba specification - eliminates bromine/chlorine >0.09 wt% in encapsulant for RoHS-aligned manufacturing. |
Pinout & Package
Package: 4-pin DIP (TOSHIBA 11-5B2S), through-hole mounting, 7.62 mm pitch, halogen-free resin body, weight 0.26 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input - connect to MCU GPIO or driver with current-limiting resistor for ≤3 mA trigger. |
| 2 | Cathode | LED cathode return - tie to ground; pins 1 and 2 form isolated input two-terminal pair. |
| 3 | Drain | MOSFET drain terminal - connects to load high-side; pins 3 and 4 are internally shorted for dual-drain configuration. |
| 4 | Drain | MOSFET drain terminal - parallel path to pin 3; enables higher current handling and thermal sharing across both leads. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Insulation | 5000 Vrms isolation with 7.0 mm creepage/clearance - certified to UL 1577, UL 508, and VDE EN 60747-5-5 (with D4 option). |
| Low-Power Trigger | ≤3 mA LED forward current - compatible with 3.3 V/5 V logic outputs without buffer stages. |
| High Current Capacity | 500 mA continuous ON-state current - replaces electromechanical relays in 24 V DC solenoid and indicator control. |
| Fast Switching | 1 ms typical turn-on time - supports real-time response in security alarm outputs and test equipment sequencing. |
| Thermal Derating Support | ION derates linearly at −5 mA/°C above 25 °C - enables accurate lifetime estimation in enclosed industrial enclosures. |
Applications
| Smart Electricity Meters | Factory Automation I/O Modules |
|---|---|
Use Scenario: Isolated load switching for tariff-controlled relay drivers and tamper-detection circuits in Class 0.5S revenue meters. IC Role / Device Role / Timing Role: Photorelay providing galvanic isolation between microcontroller and 230 V AC/48 V DC metering load circuits. Use Value: Eliminates contact wear and bounce while maintaining 5000 Vrms isolation required for IEC 62053-21 compliance. |
Use Scenario: Solid-state replacement of mechanical relays in PLC digital output cards controlling pneumatic valves and sensors. IC Role / Device Role / Timing Role: 1-Form-A solid-state switch enabling <3 ms response in deterministic motion control sequences. Use Value: Achieves >10⁸ cycle lifetime vs. 10⁵ for electromechanical relays, reducing maintenance in 24/7 production lines. |
| Security System Control Panels | Amusement Equipment Logic Interfaces |
Use Scenario: Zone monitoring and siren activation in UL-listed intrusion detection panels requiring reinforced insulation. IC Role / Device Role / Timing Role: Isolated output stage driving 12–24 V DC alarm sirens and door locks with fail-safe OFF-state leakage <1 µA. Use Value: Meets UL 60950-1 creepage requirements and supports rapid reset (<100 ms) after fault clearing. |
Use Scenario: Coin acceptor interface and payout solenoid control in arcade cabinets operating in high-humidity environments. IC Role / Device Role / Timing Role: Input-isolated switch managing 24 V DC solenoids and LED status indicators with ESD-hardened inputs. Use Value: Halogen-free package resists corrosion from sweat and cleaning agents; 5000 Vrms isolation prevents ground-loop noise in multi-board cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photorelay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP240AF(D4,LF4,F | 8.0 mm creepage/clearance, 10.16 mm pitch DIP - wider spacing for higher pollution degree or 300 V RMS working voltage. | Suitable for industrial environments with conductive dust or condensation where TLP240A's 7.0 mm clearance is marginal. | Select TLP240AF(D4,LF4,F when designing for IEC 60664-1 Pollution Degree 3 or UL 508 Class 2 circuits. |
| PS8702-1-F3-AX | Lower 1.5 Ω RON max, but only 3750 Vrms isolation and no VDE EN 60747-5-5 certification. | Acceptable for non-safety-critical 24 V DC control where reinforced insulation is not mandated. | Choose PS8702-1-F3-AX only if UL/VDE certification is unnecessary and lower conduction loss is prioritized over isolation robustness. |
Compared with TLP240A(D4,LF1,F, the TLP240AF(D4,LF4,F offers enhanced creepage for harsher environments, while PS8702-1-F3-AX trades isolation integrity for marginally better RON - making TLP240A(D4,LF1,F the optimal balance of safety compliance, thermal performance, and PCB footprint in metering and FA designs.
Availability
TLP240A(D4,LF1,F is available at Aetrix Electronics and suitable for smart meters, factory automation I/O modules, and security system control panels requiring stable component supply with full VDE EN 60747-5-5 certification and halogen-free compliance.
Supply support for TLP240A(D4,LF1,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 consumer applications, with core expertise in power devices, logic ICs, and optoelectronics.
The TLP240A series belongs to Toshiba's photorelay product line, engineered specifically for solid-state replacement of mechanical relays in safety-critical, long-lifetime applications such as utility metering and industrial control.
FAQ
What safety certifications apply to TLP240A(D4,LF1,F?
TLP240A(D4,LF1,F carries UL 1577 (File E67349), UL 508 (File E499232), cUL CSA Component Acceptance (File E67349), CQC GB4943.1/GB8898, and VDE EN 60747-5-5/EN 62368-1 - all validated under Option (D4). The "D4" suffix confirms VDE qualification, and the "F" denotes RoHS-compliant finish. These certifications enable use in Class I equipment with reinforced insulation requirements.
Does TLP240A(D4,LF1,F support surface-mount assembly?
No - TLP240A(D4,LF1,F uses a 4-pin DIP through-hole package (TOSHIBA 11-5B2S) with 7.62 mm pitch and lead forming option LF1 (straight leads). It is not SMT-compatible. For surface-mount alternatives, consider TLP240A(LF1,TP1,F - same die in tape-and-reel with formed leads - but TLP240A(D4,LF1,F itself requires through-hole soldering per J-STD-001 Class 2 guidelines.
What is the maximum continuous load current for TLP240A(D4,LF1,F?
The TLP240A(D4,LF1,F supports 500 mA continuous ON-state current at 25 °C ambient, derating linearly by 5 mA/°C above that temperature. At 65 °C ambient, the rated current drops to 300 mA. This rating assumes proper PCB copper area (≥1 cm² per drain pad) and free-air convection; forced airflow or heatsinking extends usable current range.
How does the "D4" option affect the TLP240A(D4,LF1,F datasheet specifications?
The "D4" option in TLP240A(D4,LF1,F mandates compliance with VDE EN 60747-5-5 insulation testing - including partial discharge, impulse voltage, and humidity preconditioning - without altering electrical parameters. All key specs (RON, IFT, BVS) remain identical to standard TLP240A, but the D4-marked unit undergoes additional VDE audit and receives separate certificate traceability.
Can TLP240A(D4,LF1,F drive inductive loads like solenoids directly?
Yes - TLP240A(D4,LF1,F supports inductive loads up to 500 mA with appropriate snubbing. Its 60 V OFF-state voltage rating and built-in MOSFET body diode allow safe commutation of 24 V DC solenoids. However, an external RC snubber or TVS diode is recommended across the load to suppress L·di/dt spikes exceeding 60 V, preserving long-term reliability per Toshiba's Reliability Handbook derating guidance.
TLP240A(D4,LF1,F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TLP240A
- Packaging:
- Tube
- Product Status:
- Active
- Mounting Type:
- Surface Mount
- 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:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 4-SMD
- Approval Agency:
- CQC, cUL, UL, VDE
- Grade:
- -
- Qualification:
- -
TLP240A(D4,LF1,F FAQ
1.How can I place an order for TLP240A(D4,LF1,F through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP240A(D4,LF1,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,LF1,F reliable?
The price and inventory of TLP240A(D4,LF1,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,LF1,F is usually 5 days.
3.What payment methods are accepted for TLP240A(D4,LF1,F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP240A(D4,LF1,F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP240A(D4,LF1,F?
TLP240A(D4,LF1,F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP240A(D4,LF1,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,LF1,F?
For technical support, including TLP240A(D4,LF1,F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP240A(D4,LF1,F requirements.
6.How does Aetrix verify that TLP240A(D4,LF1,F is sourced from the original manufacturer or authorized distributors?
All TLP240A(D4,LF1,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,LF1,F meets industry standards.
7.What is the process for return or replacement of TLP240A(D4,LF1,F?
All TLP240A(D4,LF1,F units undergo pre-shipment inspection (PSI). If there is an issue with TLP240A(D4,LF1,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,LF1,F part is unused and in its original packaging.
Return procedure for TLP240A(D4,LF1,F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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