HCPL-2533#500 Equivalent & Substitute Parts

Part Overview

The HCPL-2533#500 is a 2-channel optoisolator with transistor output manufactured by Broadcom Limited, rated for 3750Vrms isolation voltage. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements. The part operates across the industrial temperature range of -55°C to 100°C and is packaged in 8-DIP Gull Wing surface mount configuration.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL-2533#500
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	2
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	15% @ 8mA
Turn On / Turn Off Time (Typ)	800ns, 1µs
Output Type	Transistor
Voltage - Output (Max)	7V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.5V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 100°C
Package / Case	8-SMD, Gull Wing
Product Status	Discontinued at DiGi Electronics
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the HCPL-2533#500 is determined by the following critical parameters:

Number of Channels: Must be 2 channels
Output Type: Must be transistor output
Package / Case: Must be 8-SMD, Gull Wing
Operating Temperature Range: Must support -55°C ~ 100°C
Current - Output / Channel: Must support 8mA minimum
Voltage - Isolation: Minimum 3750Vrms (higher isolation ratings are acceptable)
Current Transfer Ratio (Min): Minimum 15% @ 8mA (higher ratios are acceptable)

Substitute parts are grouped into two categories:

Category A - Direct Functional Equivalents (3750Vrms isolation):

HCPL-2533-500E (Broadcom Limited) - Active product status, RoHS3 compliant, Tape & Reel packaging

Category B - Enhanced Isolation Alternatives (2500Vrms to 5300Vrms isolation):

HCPL2530S (onsemi) - 2500Vrms isolation, obsolete status
HCPL2530SD (Fairchild Semiconductor) - 2500Vrms isolation, active status
HCPL2531SDV (Fairchild Semiconductor) - 2500Vrms isolation, active status
SFH6325-X017T (Vishay Semiconductor Opto Division) - 5300Vrms isolation, active status
SFH6326-X007 (Vishay Semiconductor Opto Division) - 5300Vrms isolation, active status
SFH6326-X009 (Vishay Semiconductor Opto Division) - 5300Vrms isolation, active status
SFH6326-X009T (Vishay Semiconductor Opto Division) - 5300Vrms isolation, active status
SFH6326-X017 (Vishay Semiconductor Opto Division) - 5300Vrms isolation, active status
SFH6326-X017T (Vishay Semiconductor Opto Division) - 5300Vrms isolation, active status

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	CTR Min	Turn On/Off (ns)	Output Max (V)	Vf Typ (V)	Product Status	RoHS Status	Packaging
HCPL-2533#500	Broadcom	3750Vrms	15% @ 8mA	800, 1000	7	1.5	Discontinued	Non-compliant	Tube
HCPL-2533-500E	Broadcom	3750Vrms	15% @ 8mA	800, 1000	7	1.5	Active	RoHS3	Tape & Reel
HCPL2530S	onsemi	2500Vrms	7% @ 16mA	450, 500	20	1.45	Obsolete	RoHS3	8-SMD
HCPL2530SD	Fairchild	2500Vrms	7% @ 16mA	450, 500	20	1.45	Active	Not specified	Bulk
HCPL2531SDV	Fairchild	2500Vrms	19% @ 16mA	450, 300	20	1.45	Active	Not specified	8-SMD
SFH6325-X017T	Vishay	5300Vrms	7% @ 16mA	300, 600	25	1.33	Active	RoHS3	Tape & Reel
SFH6326-X007	Vishay	5300Vrms	19% @ 16mA	200, 500	25	1.33	Active	RoHS3	Tube
SFH6326-X009	Vishay	5300Vrms	19% @ 16mA	200, 500	25	1.33	Active	RoHS3	Tube
SFH6326-X009T	Vishay	5300Vrms	19% @ 16mA	200, 500	25	1.33	Active	RoHS3	Tape & Reel
SFH6326-X017	Vishay	5300Vrms	19% @ 16mA	200, 500	25	1.33	Active	RoHS3	Tube
SFH6326-X017T	Vishay	5300Vrms	19% @ 16mA	200, 500	25	1.33	Active	RoHS3	Tape & Reel

Engineering Selection Recommendations

Primary Recommendation: HCPL-2533-500E

The HCPL-2533-500E is the direct equivalent of the HCPL-2533#500, offering identical electrical specifications and isolation voltage rating. This part is currently active in production and RoHS3 compliant, addressing regulatory requirements. The only difference is packaging format (Tape & Reel versus Tube), which affects supply chain logistics but not functional performance.

Secondary Recommendations: Vishay SFH6326 Series

The SFH6326-X017T, SFH6326-X009T, SFH6326-X009, SFH6326-X017, and SFH6326-X007 provide enhanced isolation voltage (5300Vrms versus 3750Vrms) with improved current transfer ratio (19% minimum versus 15% minimum). These parts are active, RoHS3 compliant, and offer faster switching performance (200ns turn-on versus 800ns). Selection between Tape & Reel and Tube packaging variants depends on production volume and assembly requirements.

Alternative Consideration: Fairchild HCPL2531SDV

The HCPL2531SDV provides active product status with 2500Vrms isolation and 19% minimum current transfer ratio. This part is suitable for applications where lower isolation voltage is acceptable and faster switching (300ns turn-off) is beneficial.

Not Recommended: HCPL2530S

The HCPL2530S is obsolete and should not be selected for new designs despite meeting electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can HCPL-2533-500E directly replace HCPL-2533#500 without circuit modification?

A: Yes. The HCPL-2533-500E is electrically identical to the HCPL-2533#500. The only difference is packaging format (Tape & Reel versus Tube). Both use 8-SMD Gull Wing surface mount configuration and are compatible with identical PCB layouts.

Q: What is the significance of isolation voltage differences between 3750Vrms and 5300Vrms?

A: Higher isolation voltage provides greater electrical separation between input and output circuits. The SFH6326 series at 5300Vrms offers enhanced safety margins for high-voltage applications. Selection depends on system requirements; 3750Vrms is sufficient for most industrial applications, while 5300Vrms is preferred for critical isolation requirements.

Q: Why do some substitutes show lower isolation voltage (2500Vrms)?

A: The HCPL2530 and HCPL2531 series operate at 2500Vrms isolation. These are acceptable substitutes only if the application does not require the full 3750Vrms isolation rating of the original part. Circuit design review is necessary to confirm compatibility.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel packaging is optimized for automated assembly and high-volume production. Tube packaging is suitable for lower-volume applications and manual handling. Both formats contain identical components; selection depends on manufacturing process and volume requirements.

Q: How do current transfer ratio differences affect circuit performance?

A: Current transfer ratio (CTR) determines the efficiency of signal transfer from input to output. Higher CTR values (19% versus 15%) provide better signal transmission with lower input current requirements. The HCPL-2533#500 at 15% minimum CTR is adequate for standard applications; higher CTR alternatives offer improved performance margins.

Q: Are RoHS compliance differences critical for part selection?

A: RoHS3 compliance is required for products sold into European markets and many regulated industries. The HCPL-2533#500 is RoHS non-compliant, while HCPL-2533-500E and all Vishay SFH6326 variants are RoHS3 compliant. New designs should specify RoHS3 compliant alternatives.

Q: What switching speed differences exist between substitute options?

A: The original HCPL-2533#500 has turn-on/turn-off times of 800ns and 1µs. The Vishay SFH6326 series offers faster switching at 200ns turn-on and 500ns turn-off, enabling higher-frequency applications. The Fairchild HCPL2531SDV provides intermediate performance at 450ns turn-on and 300ns turn-off.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message