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Toshiba Semiconductor and Storage TLP3451(TP,F
- Part No.:
- TLP3451(TP,F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Solid State Relays (SSR)
- Package:
- 4-SMD (0.096", 2.45mm)
- Datasheet:
-
TLP3451(TP,F.pdf
- Description:
- SSR RELAY SPST-NO 120MA 0-60V
- Quantity:
- Payment:
- Shipping:
Inventory:3,054
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Product details
Overview
TLP3451(TP,F from Toshiba Electronic Devices & Storage Corporation is a surface-mount, normally-open photorelay with 60 V OFF-state voltage, 120 mA ON-state current, and 0.7 pF typical output capacitance, designed for high-speed signal switching in automatic test equipment and logic IC testers.
For engineers reviewing the TLP3451(TP,F datasheet, TLP3451(TP,F pinout, TLP3451(TP,F application, or TLP3451(TP,F equivalent, key selection criteria include low COFF for fast switching, VSON-4 package compatibility with fine-pitch SMT lines, isolation voltage compliance, and LED trigger current ≤3 mA under 25 °C ambient.
Technical Context
The TLP3451(TP,F integrates an infrared LED optically coupled to a photo-MOSFET in a single VSON-4 package, with pins 1–2 shorted as input anode/cathode and pins 3–4 shorted as dual-drain output terminals. Its two-terminal configuration simplifies PCB routing while maintaining galvanic isolation.
Designed for high-frequency signal path switching, it delivers 20 µs typical turn-on time and 40 µs typical turn-off time at 20 V supply and 5 mA LED drive, with RON of 10 Ω (typ.) enabling low insertion loss in 50 Ω test channel architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| OFF-state voltage | 60 V min - supports safe switching of logic-level and mid-voltage test signals without breakdown |
| ON-state resistance | 10 Ω typ., 15 Ω max - ensures <0.6 V drop at 120 mA, preserving signal integrity in precision measurement paths |
| Output capacitance | 0.7 pF typ., 1.3 pF max - enables >100 MHz small-signal bandwidth and minimal crosstalk in parallel test channels |
| Trigger LED current | 3 mA max - compatible with standard CMOS/TTL logic drivers without external current amplification |
| Isolation voltage | 500 Vrms min - meets reinforced insulation requirements for tester channel-to-channel isolation |
| Turn-on/turn-off time | 20/40 µs typ. - supports ≥20 kHz switching rates in automated functional test sequences |
Pinout & Package
VSON-4 package (Toshiba designation: 11-2D1A), 2.0 × 1.25 mm footprint, 0.5 mm pitch, 10 mg typical weight, non-leaded surface-mount construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input; tied internally to Pin 2 for single-input configuration |
| 2 | Cathode | LED cathode input; tied internally to Pin 1 for single-input configuration |
| 3 | Drain | MOSFET drain terminal; tied internally to Pin 4 for dual-drain output configuration |
| 4 | Drain | MOSFET drain terminal; tied internally to Pin 3 for dual-drain output configuration |
Key Features
| Feature | Design Value |
|---|---|
| Normally-open (1-Form-A) topology | Ensures fail-safe open-circuit state during power loss or LED deactivation in ATE safety interlocks |
| Low output capacitance (0.7 pF typ.) | Minimizes signal distortion and timing skew when switching GHz-range test waveforms |
| 60 V OFF-state voltage rating | Supports direct switching of LVDS, PECL, and 3.3 V/5 V logic families without level-shifting circuitry |
| 120 mA continuous ON-state current | Handles full-scale current of high-drive digital I/O channels and parametric test loads |
Applications
| ATE Channel Switching | High-Speed Logic Tester |
|---|---|
Use Scenario: Routing DUT signals between multiple test instruments in modular ATE racks. IC Role / Device Role / Timing Role: Signal-path solid-state relay isolating and selecting test channels at up to 20 kHz. Use Value: 0.7 pF COFF prevents capacitive loading-induced jitter on 100+ MHz clock/data lines during channel switching. | Use Scenario: Configuring stimulus/response paths for multi-site parallel testing of FPGA and ASIC logic blocks. IC Role / Device Role / Timing Role: High-reliability, low-RON switch enabling simultaneous per-pin test execution across 32+ channels. Use Value: 10 Ω RON (typ.) maintains <1% voltage error at 100 mA, ensuring accurate VIH/VIL margin verification. |
| Memory Test Interface | Automated Calibration System |
Use Scenario: Isolating memory controller outputs during DDR4/DDR5 write/read pattern generation. IC Role / Device Role / Timing Role: Fast-switching photorelay inserted between controller and DUT to enable dynamic signal injection. Use Value: 20 µs tON allows sub-50 µs channel reconfiguration, supporting burst-mode memory access timing windows. | Use Scenario: Switching reference voltage sources into precision ADC/DAC calibration loops. IC Role / Device Role / Timing Role: Low-leakage, high-isolation switch ensuring nanovolt-level calibration accuracy. Use Value: 500 Vrms isolation and <1 nA IOFF prevent ground-loop errors and leakage-induced offset drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photorelay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP3406(TP,F | Same VSON-4 package; higher 100 V VOFF, but 1.5 pF COFF (typ.) - 114% higher than TLP3451(TP,F | Better suited for higher-voltage analog switching; less optimal for >100 MHz digital test paths | Select when OFF-state voltage >80 V is required and bandwidth <50 MHz suffices |
| PVG612A-TP | SO-4 package (larger footprint); 40 V VOFF, 0.8 pF COFF (typ.), 100 mA ION - lower current and voltage ratings | Targeted at general-purpose industrial I/O, not high-speed ATE | Choose only if board space permits SO-4 and test speed requirements are ≤5 MHz |
Compared with TLP3451(TP,F, the TLP3406(TP,F trades bandwidth for voltage headroom, while the PVG612A-TP sacrifices both voltage and current capability for cost-sensitive non-ATE use - making TLP3451(TP,F the optimal balance for 60 V, 120 mA, sub-1 pF high-speed tester designs.
Availability
TLP3451(TP,F is available at Aetrix Electronics and suitable for automatic test equipment, high-speed logic IC testers, and measuring instruments requiring stable component supply and consistent VSON-4 packaging.
Supply support for TLP3451(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 for industrial, automotive, and consumer applications.
The TLP3451(TP,F belongs to Toshiba's photorelay product line, engineered specifically for high-speed, low-capacitance signal routing in automated test systems where reliability, miniaturization, and precise timing control are critical.
FAQ
What is the maximum recommended operating temperature for the TLP3451(TP,F?
The TLP3451(TP,F has a specified operating temperature range of –40 °C to +85 °C. At ambient temperatures above 25 °C, derating applies: ON-state current decreases by 1.2 mA/°C and output power dissipation by 2.16 mW/°C. Thermal design must ensure junction temperature remains ≤125 °C under worst-case load conditions to maintain reliability and avoid accelerated degradation of the internal LED and MOSFET.
Does the TLP3451(TP,F require external current-limiting resistors for the LED input?
Yes, the TLP3451(TP,F requires an external series resistor to limit LED forward current to ≤3 mA (max trigger) and ≤30 mA (absolute max). For a 3.3 V logic driver, a 1.0 kΩ resistor sets IF ≈ 2.3 mA at VF = 1.27 V (typ.), satisfying both trigger and reliability requirements. Exceeding IF = 30 mA risks permanent LED degradation, especially at elevated temperatures.
How is the dual-drain configuration (Pins 3 and 4) used in PCB layout for the TLP3451(TP,F?
The TLP3451(TP,F internally shorts Pins 3 and 4 as a single drain node, so both pads must be connected to the same net - typically the switched signal return or load side of the test path. This configuration reduces trace inductance and improves current sharing, enabling the full 120 mA rating. Splitting Pins 3 and 4 across separate nets violates the internal short and may cause uneven current distribution or thermal stress.
What is the isolation resistance specification for the TLP3451(TP,F, and how is it verified?
The TLP3451(TP,F specifies a minimum isolation resistance of 10¹⁴ Ω at 500 VDC and ≤60% relative humidity. This value is measured between input (Pins 1–2) and output (Pins 3–4) terminals per JEDEC JESD22-A114. It reflects long-term insulation integrity under dry conditions and supports reliable operation in clean-room ATE environments where contamination-induced leakage must be minimized.
Can the TLP3451(TP,F be used in AC signal switching applications?
The TLP3451(TP,F is rated for DC and pulsed DC operation only; its 60 V VOFF rating applies to unidirectional blocking. For true AC signal switching (e.g., sine wave or bidirectional logic), external clamping or series diodes are required to prevent reverse-bias breakdown of the output MOSFET. Toshiba does not characterize or guarantee performance under sustained AC voltage or bipolar signal conditions.
TLP3451(TP,F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TLP3451
- Packaging:
- Tape & Reel (TR)
- 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:
- 120 mA
- On-State Resistance (Max):
- 15 Ohms
- Termination Style:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 110°C
- Supplier Device Package:
- 4-VSON (1.45x2.45)
- Approval Agency:
- -
- Grade:
- -
- Qualification:
- -
TLP3451(TP,F FAQ
1.How can I place an order for TLP3451(TP,F through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP3451(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 TLP3451(TP,F reliable?
The price and inventory of TLP3451(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 TLP3451(TP,F is usually 5 days.
3.What payment methods are accepted for TLP3451(TP,F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP3451(TP,F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP3451(TP,F?
TLP3451(TP,F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP3451(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 TLP3451(TP,F?
For technical support, including TLP3451(TP,F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP3451(TP,F requirements.
6.How does Aetrix verify that TLP3451(TP,F is sourced from the original manufacturer or authorized distributors?
All TLP3451(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 TLP3451(TP,F meets industry standards.
7.What is the process for return or replacement of TLP3451(TP,F?
All TLP3451(TP,F units undergo pre-shipment inspection (PSI). If there is an issue with TLP3451(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 TLP3451(TP,F part is unused and in its original packaging.
Return procedure for TLP3451(TP,F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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