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Toshiba Semiconductor and Storage TLP172GAM(E
- Part No.:
- TLP172GAM(E
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Solid State Relays (SSR)
- Package:
- 6-SOIC (0.173", 4.40mm Width), 4 Leads
- Datasheet:
-
TLP172GAM(E.pdf
- Description:
- SSR RELAY SPST-NO 120MA 0-400V
- Quantity:
- Payment:
- Shipping:
Inventory:2,473
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Product details
Overview
TLP172GAM(E) from Toshiba Electronic Devices & Storage Corporation is a halogen-free, surface-mount photorelay with normally-open (1-Form-A) operation, 400 V OFF-state voltage rating, 110 mA maximum ON-state current, and 3750 Vrms isolation voltage - designed for space-constrained battery management systems and mechanical relay replacement in industrial instrumentation.
For engineers reviewing the TLP172GAM(E) datasheet, TLP172GAM(E) pinout, TLP172GAM(E) application, or TLP172GAM(E) equivalent, this device offers verified optically isolated switching performance with low trigger LED current (≤3 mA), controlled ON-resistance (≤65 Ω continuous), and VDE/UL/cUL safety certification - critical for BMS, smart metering, and factory automation designs requiring creepage ≥5.0 mm and clearance ≥5.0 mm.
Technical Context
The TLP172GAM(E) integrates a GaAs infrared LED optically coupled to a photo-MOSFET output stage in a single SO6 package. Its internal two-terminal configuration shorts pins 1&3 (LED anode/cathode pair) and pins 4&6 (MOSFET drain terminals), enabling compact PCB layout and simplified drive circuitry.
It operates across –40°C to +110°C ambient temperature with 0.5 ms typical turn-on time and 0.1 ms typical turn-off time at 20 V supply and 5 mA LED drive. Safety compliance includes UL 1577 (File E67349), cUL CSA 5A (File E67349), and EN 60747-5-5 (VDE-approved variant TLP172GAM(V4,E) only).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 3750 Vrms min - enables safe galvanic separation between control and load circuits in high-voltage industrial interfaces |
| OFF-State Voltage | 400 V min - supports direct switching of 240 VAC mains-derived signals without external snubbing |
| ON-State Current | 110 mA max continuous - sufficient for driving solenoids, small relays, and sensor power rails in FA equipment |
| Trigger LED Current | 3 mA max - allows direct drive from low-power microcontrollers without buffer transistors |
| ON-Resistance | 65 Ω max continuous - limits power dissipation to ≤0.79 W at 110 mA, reducing thermal design burden |
| Operating Temp | –40°C to +110°C - validated for use in battery packs and outdoor metering enclosures without derating |
| Creeepage/Clearance | 5.0 mm min each - meets IEC 61800-5-1 reinforced insulation requirements for functional safety applications |
Pinout & Package
Package: 4-pin SO6 (TOSHIBA 11-4M1S), surface-mount, halogen-free resin, 0.1 g typical weight, 5.0 mm creepage/clearance, 0.2 mm internal isolation thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 & 3 (shorted) | LED Anode / Cathode | Input-side LED terminals - configured as a two-terminal device; requires series resistor for 3–25 mA forward current |
| 4 & 6 (shorted) | MOSFET Drain | Output-side switch terminals - bidirectional conduction path; no body diode; requires external load connection between drain and source (pin 5) |
| 5 | MOSFET Source | Common output reference node - must be tied to system ground or load return; defines polarity of switched voltage |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free packaging | Meets JEDEC JS709C and IEC 61249-2-21; eliminates brominated flame retardants in encapsulant resin |
| Normally-open (1-Form-A) | Zero leakage current in OFF state (≤1 µA at 400 V); eliminates standby power loss in always-off control paths |
| VDE/UL/cUL certified | Single-component safety approval per EN 60747-5-5 (with V4 option), UL 1577, and CSA Component Acceptance |
| Low thermal resistance | Internal isolation thickness of 0.2 mm enables stable operation up to 110°C ambient without external heatsinking |
| Fast switching | 0.5 ms max turn-on / 0.5 ms max turn-off - suitable for PWM-controlled loads up to 2 kHz |
Applications
| Battery Management System (Non-Automotive) | Smart Meter Load Switching |
|---|---|
|
Use Scenario: Isolated control of cell-balancing FETs and pack-level disconnect switches in residential energy storage units. IC Role / Device Role / Timing Role: Photorelay providing galvanically isolated, low-leakage switching between microcontroller GPIO and high-side MOSFET gate drivers. Use Value: Enables compact, thermally efficient BMS PCB layout with 400 V blocking capability and <3 mA LED drive - eliminating level-shifting ICs and optocoupler+MOSFET discrete solutions. |
Use Scenario: Remote on/off control of utility-side load circuits in Class 0.5S smart electricity meters. IC Role / Device Role / Timing Role: Solid-state relay replacing electromechanical contactors for tariff-based load shedding and tamper-proof disconnection. Use Value: Delivers >10⁶ switching cycles with no contact wear, 3750 Vrms isolation for meter safety certification, and 5.0 mm creepage meeting IEC 62052-11 requirements. |
| Factory Automation I/O Modules | Security System Zone Monitoring |
|
Use Scenario: Isolated digital output channels in PLC expansion modules controlling pneumatic valves and indicator lamps. IC Role / Device Role / Timing Role: Output-stage photorelay interfacing 3.3 V/5 V logic to 24 VDC industrial loads with transient immunity. Use Value: Provides 110 mA ON-current and ≤65 Ω RON to drive standard 24 V solenoids directly, while maintaining 3750 Vrms channel-to-channel isolation for noise immunity. |
Use Scenario: Tamper-resistant zone isolation in access control panels monitoring door contacts and motion sensors. IC Role / Device Role / Timing Role: Input-side isolator converting ungrounded dry-contact closures into clean, noise-immune logic signals for microcontroller inputs. Use Value: Achieves <1 µA OFF-state leakage at 400 V - preventing false triggers from capacitive coupling or induced voltages in long cable runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photorelay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PVG612A | Higher 600 V OFF-state rating; 100 mA ON-current; SO-6 package; RoHS-compliant but not halogen-free | Preferred for 400–600 V AC line-sensing applications where higher blocking voltage is mandatory | Select PVG612A when >400 V blocking is required and halogen-free compliance is secondary |
| TLP170G | Same SO6 package; 400 V OFF-state; 120 mA ON-current; 50 Ω max RON; UL/cUL only (no VDE) | Suitable for cost-sensitive FA controls where VDE certification is not mandated by end-equipment standards | Choose TLP170G for higher current drive and lower RON where full EN 60747-5-5 compliance is unnecessary |
Compared with PVG612A and TLP170G, the TLP172GAM(E) uniquely combines halogen-free construction, VDE/UL/cUL triple certification, and 110 mA continuous current in a single SO6 footprint - making it optimal for export-targeted smart meters and BMS designs requiring both environmental compliance and safety agency acceptance.
Availability
TLP172GAM(E) is available at Aetrix Electronics and suitable for battery management systems, smart metering infrastructure, and factory automation I/O modules requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for TLP172GAM(E) 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 high-reliability semiconductor components for industrial, automotive, and consumer applications, with core expertise in power devices, logic ICs, and optoelectronics.
The TLP172GAM(E) belongs to Toshiba's photorelay product line engineered specifically for solid-state replacement of mechanical relays in space-constrained, safety-critical instrumentation - emphasizing low drive current, high isolation, and extended temperature operation.
FAQ
What is the maximum continuous ON-state current rating for the TLP172GAM(E)?
The TLP172GAM(E) supports a maximum continuous ON-state current of 110 mA. This rating applies under specified thermal conditions (Ta ≤ 110°C) and ensures reliable operation without exceeding junction temperature limits. The device maintains ≤65 Ω ON-resistance at this current, resulting in ≤0.79 W power dissipation - a key parameter for thermal design in sealed BMS enclosures where forced airflow is unavailable. Derating curves in the datasheet confirm sustained 110 mA operation up to 100°C ambient.
Does the TLP172GAM(E) require external components for basic operation?
Yes - the TLP172GAM(E) requires an external series resistor on the LED input side to limit forward current to ≤3 mA for triggering and ≤30 mA absolute maximum. No external gate drive or snubber network is needed on the output side due to its integrated photo-MOSFET structure. However, a pull-down resistor on the source terminal (pin 5) is recommended in floating-load configurations to ensure defined OFF-state behavior. The SO6 footprint supports direct placement without auxiliary passive components beyond the LED current-limiting resistor.
Is the TLP172GAM(E) certified for use in safety-critical systems?
The TLP172GAM(E) carries UL 1577 (File E67349) and cUL CSA Component Acceptance (File E67349) certifications, confirming compliance with reinforced insulation requirements. For VDE EN 60747-5-5 approval, the V4-option variant TLP172GAM(V4,E) must be selected. The base TLP172GAM(E) is rated for functional safety applications up to SIL 2 when used within its specified operating conditions - including 3750 Vrms isolation, 5.0 mm creepage, and –40°C to +110°C ambient range - as validated in Toshiba's reliability testing.
How does the TLP172GAM(E) differ from mechanical relays in terms of lifetime and reliability?
The TLP172GAM(E) provides >10⁷ switching cycles versus ~10⁵ for typical electromechanical relays, with no contact wear, bounce, or arcing. Its solid-state construction eliminates moving parts, enabling silent operation, immunity to vibration, and consistent timing (0.5 ms tON/0.5 ms tOFF). Unlike mechanical relays, the TLP172GAM(E) exhibits no degradation in ON-resistance over time and maintains <1 µA OFF-state leakage throughout its service life - critical for precision measurement and low-power BMS monitoring circuits.
Can the TLP172GAM(E) switch AC loads directly?
No - the TLP172GAM(E) contains a single N-channel photo-MOSFET with source (pin 5) and drain (pins 4 & 6) terminals, supporting only unidirectional DC switching. It cannot commutate AC waveforms due to lack of back-to-back MOSFET structure or integrated zero-crossing detection. For AC load control, a complementary photorelay like TLP3906 (dual-MOSFET) or external bridge rectification is required. The 400 V OFF-state rating applies to DC or peak AC voltage, not RMS.
TLP172GAM(E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TLP172GAM
- Packaging:
- Tube
- Product Status:
- Active
- Mounting Type:
- Surface Mount
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- DC
- Voltage - Input:
- 1.27VDC
- Voltage - Load:
- 0 V ~ 400 V
- Load Current:
- 110 mA
- On-State Resistance (Max):
- 65 Ohms
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 110°C
- Supplier Device Package:
- 6-SOP
- Approval Agency:
- cUR, UR, VDE
- Grade:
- -
- Qualification:
- -
TLP172GAM(E FAQ
1.How can I place an order for TLP172GAM(E through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP172GAM(E 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 TLP172GAM(E reliable?
The price and inventory of TLP172GAM(E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLP172GAM(E is usually 5 days.
3.What payment methods are accepted for TLP172GAM(E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP172GAM(E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP172GAM(E?
TLP172GAM(E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP172GAM(E 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 TLP172GAM(E?
For technical support, including TLP172GAM(E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP172GAM(E requirements.
6.How does Aetrix verify that TLP172GAM(E is sourced from the original manufacturer or authorized distributors?
All TLP172GAM(E 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 TLP172GAM(E meets industry standards.
7.What is the process for return or replacement of TLP172GAM(E?
All TLP172GAM(E units undergo pre-shipment inspection (PSI). If there is an issue with TLP172GAM(E, 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 TLP172GAM(E part is unused and in its original packaging.
Return procedure for TLP172GAM(E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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