HER608-AP Equivalent & Substitute Parts

Part Overview

The HER608-AP is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 6 A average rectified current, packaged in an R-6 axial through-hole configuration. This component is classified as obsolete, indicating that the original manufacturer has discontinued production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this diode.

Substiute Parts

HER608-AP
Micro Commercial CoIn Stock: 926HER608-AP Datasheet
HER608-AP
Current Part
HER608GP-AP
Micro Commercial CoIn Stock: 846HER608GP-AP Datasheet
HER608GP-AP
Direct

Key Parameters

Parameter Value Unit
Voltage - DC Reverse (Vr) (Max) 1000 V
Current - Average Rectified (Io) 6 A
Voltage - Forward (Vf) (Max) @ If 1.7 @ 6 A V
Reverse Recovery Time (trr) 75 ns
Current - Reverse Leakage @ Vr 10 @ 1000 V µA
Capacitance @ Vr, F 65 @ 4V, 1MHz pF
Mounting Type Through Hole
Package / Case R-6, Axial
Operating Temperature - Junction -55 to 150 °C
Technology Standard
Speed Classification Fast Recovery ≤ 500ns, > 200mA (Io)

Substitute Part Grouping Explanation

Substitution of the HER608-AP is determined by strict equivalence across the following critical parameters:

  • Voltage Rating: DC reverse voltage must equal 1000 V
  • Current Rating: Average rectified current must equal 6 A
  • Forward Voltage Drop: Maximum forward voltage at rated current must equal 1.7 V @ 6 A
  • Reverse Recovery Time: Must equal 75 ns (fast recovery classification)
  • Reverse Leakage Current: Must equal 10 µA @ 1000 V
  • Junction Capacitance: Must equal 65 pF @ 4V, 1MHz
  • Package Configuration: Must be R-6 axial through-hole
  • Operating Temperature Range: Must support -55°C to 150°C junction temperature
  • Technology Type: Must be standard rectifier diode technology

The substitute part HER608GP-AP meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Parameter HER608-AP (Main Part) HER608GP-AP (Substitute) Match
Voltage - DC Reverse (Vr) (Max) 1000 V 1000 V
Current - Average Rectified (Io) 6 A 6 A
Voltage - Forward (Vf) (Max) @ If 1.7 V @ 6 A 1.7 V @ 6 A
Reverse Recovery Time (trr) 75 ns 75 ns
Current - Reverse Leakage @ Vr 10 µA @ 1000 V 10 µA @ 1000 V
Capacitance @ Vr, F 65 pF @ 4V, 1MHz 65 pF @ 4V, 1MHz
Mounting Type Through Hole Through Hole
Package / Case R-6, Axial R-6, Axial
Operating Temperature - Junction -55°C ~ 150°C -55°C ~ 150°C
Technology Standard Standard
Speed Classification Fast Recovery ≤ 500ns, > 200mA (Io) Fast Recovery ≤ 500ns, > 200mA (Io)
Product Status Obsolete Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

The HER608GP-AP is a direct substitute for the HER608-AP. Both components are manufactured by Micro Commercial Co and share identical electrical and mechanical specifications across all rated parameters. The primary distinction is product status: the HER608-AP is obsolete, while the HER608GP-AP is active and currently in production.

Both parts maintain ROHS3 compliance and carry identical moisture sensitivity classification (MSL 1, Unlimited). The HER608GP-AP additionally carries REACH Unaffected status, providing enhanced regulatory documentation for applications requiring comprehensive environmental compliance verification.

For new designs or ongoing production requiring this diode specification, the HER608GP-AP should be selected due to its active product status and assured long-term availability. For legacy system maintenance where the original HER608-AP is specified, the HER608GP-AP provides seamless functional replacement without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the HER608GP-AP be used as a direct replacement for the HER608-AP in existing circuits?

A: Yes. The HER608GP-AP is electrically and mechanically identical to the HER608-AP across all specified parameters, including voltage rating, current capacity, forward voltage drop, reverse recovery time, and package configuration. No circuit modifications are required.

Q: What is the significance of the product status difference between these parts?

A: The HER608-AP is classified as obsolete, indicating discontinued production by the manufacturer. The HER608GP-AP is active and in current production. For applications requiring long-term component availability and supply chain continuity, the active HER608GP-AP is the appropriate selection.

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

A: Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification. The HER608GP-AP includes additional REACH Unaffected status documentation. Both parts carry identical ECCN and HTSUS classifications.

Q: Does the R-6 axial package configuration affect substitution compatibility?

A: No. Both parts use identical R-6 axial through-hole packaging. PCB footprints, lead spacing, and mounting procedures are identical. No layout modifications are necessary.

Q: What parameters must remain identical for substitution to be valid?

A: Substitution validity is determined by equivalence in voltage rating (1000 V), current rating (6 A), forward voltage drop (1.7 V @ 6 A), reverse recovery time (75 ns), reverse leakage current (10 µA @ 1000 V), junction capacitance (65 pF @ 4V, 1MHz), package type (R-6 axial), and operating temperature range (-55°C to 150°C).

Q: Is the HER608GP-AP suitable for high-frequency switching applications?

A: Both parts are classified as fast recovery diodes with 75 ns reverse recovery time and support switching speeds up to 500 ns. Application suitability depends on specific circuit requirements and operating frequency, which must be evaluated against the provided electrical specifications.

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