TLP521-2GR Equivalent & Substitute Parts

Part Overview

The TLP521-2GR is a dual-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This 8-DIP through-hole component provides galvanic isolation up to 5300Vrms and is designed for applications requiring electrical isolation between input and output circuits. The part is currently in active production status with 5437 units available in inventory. Substitute parts are identified when packaging or supplier configurations differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

TLP521-2GR
Isocom Components 2004 LTDIn Stock: 5462TLP521-2GR Datasheet
TLP521-2GR
Current Part
TLP521-2XGR
Isocom Components 2004 LTDIn Stock: 1173TLP521-2XGR Datasheet
TLP521-2XGR
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number TLP521-2GR
Manufacturer Isocom Components 2004 LTD
Category Optoisolators
Series TLP521-2
Number of Channels 2
Voltage - Isolation 5300Vrms
Current Transfer Ratio (Min) 100% @ 1mA
Current Transfer Ratio (Max) 300% @ 1mA
Output Type Transistor
Voltage - Output (Max) 55V
Current - Output / Channel 50mA
Vce Saturation (Max) 400mV
Operating Temperature -30°C ~ 100°C
Package / Case 8-DIP (0.300", 7.62mm)
Mounting Type Through Hole
RoHS Status ROHS3 Compliant
Product Status Active

Substitute Part Grouping Explanation

The TLP521-2GR has one identified parametric equivalent: TLP521-2XGR. Both parts belong to the TLP521-2 series and share identical electrical specifications across all critical parameters that determine functional compatibility:

  • Isolation voltage: 5300Vrms
  • Number of channels: 2
  • Current transfer ratio range: 100% to 300% @ 1mA
  • Output type: Transistor
  • Maximum output voltage: 55V
  • Maximum output current per channel: 50mA
  • Vce saturation: 400mV maximum
  • Operating temperature range: -30°C to 100°C
  • Package type: 8-DIP (0.300", 7.62mm)
  • Mounting type: Through Hole

The substitution is valid based on identical electrical performance and mechanical compatibility. The difference between these parts is limited to packaging configuration (tube vs. standard packaging) and inventory source.

Parameter Comparison

Parameter TLP521-2GR TLP521-2XGR
Manufacturer Part Number TLP521-2GR TLP521-2XGR
Manufacturer Isocom Components 2004 LTD Isocom Components 2004 LTD
Series TLP521-2 TLP521-2
Number of Channels 2 2
Voltage - Isolation 5300Vrms 5300Vrms
Current Transfer Ratio (Min) 100% @ 1mA 100% @ 1mA
Current Transfer Ratio (Max) 300% @ 1mA 300% @ 1mA
Turn On / Turn Off Time (Typ) 3µs, 3µs 3µs, 3µs
Rise / Fall Time (Typ) 4µs, 3µs 4µs, 3µs
Output Type Transistor Transistor
Voltage - Output (Max) 55V 55V
Current - Output / Channel 50mA 50mA
Voltage - Forward (Vf) (Typ) 1.15V 1.15V
Current - DC Forward (If) (Max) 50 mA 50 mA
Vce Saturation (Max) 400mV 400mV
Operating Temperature -30°C ~ 100°C -30°C ~ 100°C
Package / Case 8-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm)
Mounting Type Through Hole Through Hole
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected
Product Status Active Active

Engineering Selection Recommendations

Both TLP521-2GR and TLP521-2XGR are active production parts from Isocom Components 2004 LTD with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

  • Availability and lead time requirements
  • Packaging format preference (standard vs. tube)
  • Inventory levels at your supplier
  • Cost considerations based on current market pricing

Both parts meet identical electrical and mechanical specifications and are suitable for direct substitution in applications requiring dual-channel optoisolation at 5300Vrms with transistor output configuration.

Frequently Asked Questions (FAQ)

Q: Can TLP521-2XGR be used as a direct replacement for TLP521-2GR?

A: Yes. Both parts are electrically and mechanically identical. They share the same isolation voltage (5300Vrms), channel count (2), current transfer ratio range (100-300% @ 1mA), output specifications (55V maximum, 50mA per channel), and 8-DIP through-hole package. The difference is limited to packaging configuration.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is valid when the following parameters match: isolation voltage, number of channels, current transfer ratio specifications, output type (transistor), maximum output voltage, maximum output current per channel, Vce saturation rating, operating temperature range, and physical package dimensions (8-DIP 0.300" / 7.62mm).

Q: Are there any compliance or certification differences between these parts?

A: No. Both TLP521-2GR and TLP521-2XGR carry identical compliance certifications: ROHS3 compliant, REACH unaffected, and active product status.

Q: What is the significance of the packaging difference?

A: The packaging difference (standard vs. tube) affects handling, storage, and automated assembly compatibility. Tube packaging is typically used for high-volume automated pick-and-place operations, while standard packaging may be used for manual assembly or lower-volume applications. Electrical performance is unaffected.

Q: Are both parts currently available?

A: Both parts are in active production. TLP521-2GR has 5437 units in inventory, and TLP521-2XGR has 1065 units in inventory. Availability may vary by supplier and time of inquiry.

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