Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
TIL197ASMT&R
Isocom Components 2004 LTD
4PIN DARLINGTON OUTPUT, SINGLE O
30444 Pcs New Original In Stock
Optoisolator Darlington Output 7.5Vpk 1 Channel 4-SMD
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (436 Ratings)
TIL197ASMT&R
Product Overview
1907622
DiGi Electronics Part Number
TIL197ASMT&R-DGManufacturer
Isocom Components 2004 LTD
TIL197ASMT&R
Description
4PIN DARLINGTON OUTPUT, SINGLE OInventory
30444 Pcs New Original In Stock
Optoisolator Darlington Output 7.5Vpk 1 Channel 4-SMD
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
TIL197ASMT&R Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
Tape & Reel (TR)
Series
TIL197
Product Status
Active
Number of Channels
1
Voltage - Isolation
7.5Vpk
Current Transfer Ratio (Min)
1000% @ 2mA
Current Transfer Ratio (Max)
7500% @ 2mA
Turn On / Turn Off Time (Typ)
-
Rise / Fall Time (Typ)
100µs, 100µs
Input Type
DC
Output Type
Darlington
Voltage - Output (Max)
35V
Current - Output / Channel
-
Voltage - Forward (Vf) (Typ)
1.2V
Current - DC Forward (If) (Max)
50 mA
Vce Saturation (Max)
1V
Operating Temperature
-55°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
4-SMD, Gull Wing
Supplier Device Package
4-SMD
Datasheet & Documents
HTML Datasheet
TIL197ASMT&R-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
58-TIL197ASMT&RTR
56-TIL197ASMT&RTR
58-TIL197ASMT&RDKR
58-TIL197ASMT&RCT
56-TIL197ASMT&RTR-DG
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
每次跟DiGi Electronics合作都非常順利，配送速度快，服務細心，超出預期！
Dec 02, 2025
Die Transparenz bei den Preisen bei DiGi Electronics ist für mich ein großer Pluspunkt.
Dec 02, 2025
Mein Einkauf bei DiGi Electronics war reibungslos. Die Logistikabteilung arbeitet wirklich effizient.
Dec 02, 2025
迅速な配送と丁寧な対応に非常に満足しています。おすすめです。
Dec 02, 2025
I appreciate their transparent communication about shipping times and any potential delays, which keeps me well-informed.
Dec 02, 2025
Support staff handled my queries with expertise, and my order arrived on time.
Dec 02, 2025
Their customer support helped me resolve a shipping issue swiftly, which was very reassuring.
Dec 02, 2025
Their after-sales team is always ready to assist with any concerns.
Dec 02, 2025
DiGi Electronics maintains an impressive stock system, which makes bulk ordering seamless and efficient.
Dec 02, 2025
The attention to detail in packaging shows true professionalism.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key reliability risks when using the TIL197ASMT&R in high-temperature industrial environments near its 100°C operating limit?
When deploying the TIL197ASMT&R near its maximum operating temperature of 100°C, thermal derating of the LED forward current and Darlington transistor gain becomes critical. Prolonged operation at elevated temperatures accelerates LED degradation, reducing long-term current transfer ratio (CTR) and potentially causing premature failure. To mitigate this, ensure adequate PCB copper area for heat dissipation, avoid placing the device near other heat sources, and consider derating the input forward current (If) by 20–30% above 85°C. Additionally, verify system-level thermal cycling performance, as repeated exposure to -55°C to 100°C can stress the SMD gull-wing leads and internal bond wires over time.
Can the TIL197ASMT&R safely replace a Vishay CNY17F-3 in a 24V industrial input interface without circuit redesign?
Direct replacement of the CNY17F-3 with the TIL197ASMT&R is not recommended without evaluation. While both are single-channel Darlington-output optoisolators, the TIL197ASMT&R has a higher minimum CTR (1000% vs. ~500% for CNY17F-3 at 2mA), which may cause excessive output saturation current in pull-up configurations, risking unintended logic states or increased power dissipation. Also, the TIL197ASMT&R’s Vce(sat) of 1V max is higher than the CNY17F-3’s typical 0.4V, potentially affecting low-voltage logic thresholds. Verify output stage compatibility, especially in high-impedance or sensitive comparator circuits, and consider adding a base resistor or clamping diode if switching inductive loads.
How does the slow rise/fall time (100µs typical) of the TIL197ASMT&R impact its use in PWM or high-speed digital communication applications?
The TIL197ASMT&R’s 100µs rise and fall times make it unsuitable for PWM frequencies above ~500 Hz or digital protocols like SPI, I²C, or UART where signal integrity and timing margins are critical. At 1 kHz PWM, the output waveform will exhibit significant duty cycle distortion and delayed response, leading to control inaccuracies in motor drives or power regulation loops. For such applications, consider faster alternatives like the Avago HCPL-2730 (with ~3µs propagation delay) or use the TIL197ASMT&R only in low-frequency status signaling or slow analog feedback paths where isolation and high CTR are prioritized over speed.
What PCB layout practices are essential to maintain the 7.5 kVpk isolation rating of the TIL197ASMT&R in a compact SMD design?
To preserve the TIL197ASMT&R’s 7.5 kVpk isolation integrity, maintain a minimum creepage distance of 8 mm between input and output traces on the PCB, especially in pollution degree 2 environments. Use a slot (isolation groove) in the PCB between the input and output sides if space is constrained, and avoid routing high-voltage or noisy signals under the device. Ensure the 4-SMD gull-wing pads are soldered without bridging, and do not place ground planes or copper pours on inner layers directly beneath the isolator. Following IEC 60664-1 guidelines for reinforced insulation will help pass safety certifications in medical or industrial systems.
Is the TIL197ASMT&R a drop-in replacement for the obsolete Fairchild MOCD207M in a 12V relay driver circuit?
The TIL197ASMT&R can replace the MOCD207M in a 12V relay driver, but with caveats. Both feature Darlington outputs and similar package footprints (4-SMD), but the TIL197ASMT&R has a higher CTR range (1000–7500%) compared to the MOCD207M’s 100–600%, which may overdrive the relay coil and increase turn-off time due to stored charge. This can lead to contact arcing or reduced relay lifespan. To compensate, add a small base resistor (e.g., 10–47 kΩ) from the output transistor’s base to ground to accelerate turn-off, or use a flyback diode with fast recovery characteristics. Also confirm the TIL197ASMT&R’s 35V output voltage rating exceeds your relay coil voltage under transient conditions.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
TIL197ASMT&R CAD Models
Isocom Components 2004 LTD TIL197ASMT&R PCB symbols & footprints
productDetail
