TLP521BLSMT&R Equivalent & Substitute Parts

Part Overview

The TLP521BLSMT&R is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This single-channel device provides 5300Vrms isolation voltage in a 4-SMD surface mount package. The part is currently active in production with 1001 pieces in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, enabling component interchangeability for procurement flexibility and supply chain continuity.

Substiute Parts

TLP521BLSMT&R

Isocom Components 2004 LTDIn Stock: 1101TLP521BLSMT&R Datasheet

Current PartRFQ

ISP521-1XBLSMT&R

Isocom Components 2004 LTDIn Stock: 1865ISP521-1XBLSMT&R Datasheet

Parametric EquivalentRFQ

TLP521-1XBLSMT&R

Isocom Components 2004 LTDIn Stock: 1845TLP521-1XBLSMT&R Datasheet

Parametric EquivalentRFQ

TLP521XBLSMT&R

Isocom Components 2004 LTDIn Stock: 1820TLP521XBLSMT&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLP521BLSMT&R are qualified based on strict equivalence of the following critical parameters:

• Single channel configuration
• 5300Vrms isolation voltage
• Transistor output type
• Current transfer ratio range: 200% to 600% @ 1mA
• Maximum output voltage: 55V
• Maximum output current: 50mA per channel
• Vce saturation: 400mV maximum
• Operating temperature range: -30°C to 100°C
• 4-SMD surface mount package (0.300", 7.62mm)
• ROHS3 compliance
• MSL Level 1 (Unlimited)

All identified substitute parts maintain these electrical and mechanical specifications, ensuring functional interchangeability within the same application context.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status with ROHS3 compliance and REACH unaffected classification. Selection between TLP521BLSMT&R and its equivalents is determined by availability and inventory levels rather than electrical or mechanical differentiation. The TLP521-1XBLSMT&R, TLP521XBLSMT&R, and ISP521-1XBLSMT&R are functionally equivalent for applications requiring single-channel optoisolation at 5300Vrms with transistor output in 4-SMD surface mount configuration. All parts share identical electrical performance specifications and environmental compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can TLP521-1XBLSMT&R replace TLP521BLSMT&R in existing designs?

A: Yes. Both parts maintain identical electrical specifications including isolation voltage, current transfer ratio, output voltage and current ratings, and operating temperature range. The 4-SMD package dimensions are equivalent, enabling direct substitution in surface mount applications.

Q: What is the difference between TLP521XBLSMT&R and ISP521-1XBLSMT&R?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary difference is series designation (TLP521 versus ISP521-1) and manufacturer series classification. Functional performance in circuit applications is equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TLP521BLSMT&R and all listed substitute parts are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All substitute parts share the identical 4-SMD (0.300", 7.62mm) package footprint and mounting type, enabling direct PCB layout compatibility without design modification.

Q: What parameters must remain constant for substitution validity?

A: Isolation voltage (5300Vrms), single-channel configuration, transistor output type, current transfer ratio range (200-600% @ 1mA), maximum output specifications (55V, 50mA), and 4-SMD surface mount package are the critical parameters defining substitution equivalence.