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P6KE75CA-B Equivalent & Substitute Parts
Part Overview
The P6KE75CA-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates with a reverse standoff voltage of 64.1V and provides peak pulse power dissipation of 600W. The part is currently active in production and widely stocked. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-204AC (DO-15) axial package format.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 64.1V |
| Voltage - Breakdown (Min) | 71.3V |
| Voltage - Clamping (Max) @ Ipp | 103V |
| Current - Peak Pulse (10/1000µs) | 5.9A |
| Power - Peak Pulse | 600W |
| Package / Case | DO-204AC, DO-15, Axial |
| Mounting Type | Through Hole |
| Operating Temperature Range | -55°C ~ 175°C (TJ) |
| Type | Zener |
| Bidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitute parts for the P6KE75CA-B are qualified based on the following critical parameters:
- Voltage - Reverse Standoff (Typ): 64.0V to 64.1V
- Voltage - Clamping (Max) @ Ipp: 103V
- Current - Peak Pulse (10/1000µs): 5.0A to 6.1A
- Power - Peak Pulse: 500W to 600W
- Package / Case: DO-204AC or DO-15 axial configuration
- Mounting Type: Through Hole
- Type: Zener, Bidirectional
All identified substitutes maintain electrical equivalence within these parameters and are compatible with the same circuit board footprint and mounting methodology.
Parameter Comparison
| Parameter | P6KE75CA-B (Littelfuse) | P6KE75CA (Diotec) | SA64CA (Taiwan Semiconductor) | P6KE75CA-TP (Micro Commercial Co) |
|---|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 64.1V | 64.1V | 64V | 64.1V |
| Voltage - Breakdown (Min) | 71.3V | 71.3V | 71.1V | 71.3V |
| Voltage - Clamping (Max) @ Ipp | 103V | 103V | 103V | 103V |
| Current - Peak Pulse (10/1000µs) | 5.9A | 6.1A | 5A | 5.8A |
| Power - Peak Pulse | 600W | 600W | 500W | 600W |
| Package / Case | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial |
| Operating Temperature Range | -55°C ~ 175°C | -50°C ~ 175°C | -55°C ~ 175°C | -55°C ~ 175°C |
| RoHS Status | ROHS3 Compliant | Not applicable | ROHS3 Compliant | ROHS3 Compliant |
| Packaging Format | Bulk | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) |
Engineering Selection Recommendations
All four parts listed maintain functional equivalence for general-purpose transient voltage suppression applications. Selection among these substitutes should be based on the following factors:
P6KE75CA (Diotec Semiconductor): Identical electrical specifications to the main part with 6.1A peak pulse current. Available in high volume (100,200 pcs) in Tape & Reel packaging. Operating temperature minimum of -50°C versus -55°C for the main part.
SA64CA (Taiwan Semiconductor Corporation): Meets all critical voltage parameters with 5A peak pulse current and 500W peak pulse power. ROHS3 compliant and available in 5,400 pcs. Represents the lowest peak pulse current specification among substitutes.
P6KE75CA-TP (Micro Commercial Co): Matches the main part specifications with 5.8A peak pulse current. ROHS3 compliant with -55°C to 175°C operating range. Available in Cut Tape packaging (8,590 pcs).
All substitutes are active products with current manufacturing status and maintain the same DO-15 axial through-hole package configuration.
Frequently Asked Questions (FAQ)
Q: Can P6KE75CA-B be directly replaced with P6KE75CA from Diotec?
A: Yes. Both parts share identical reverse standoff voltage (64.1V), breakdown voltage (71.3V), clamping voltage (103V), and peak pulse power (600W). The Diotec variant provides 6.1A peak pulse current versus 5.9A for the original. Both use DO-15 axial through-hole packaging.
Q: What is the difference between SA64CA and the main part?
A: SA64CA maintains equivalent voltage specifications (64V reverse standoff, 103V clamping) but operates at 5A peak pulse current and 500W peak pulse power, compared to 5.9A and 600W for P6KE75CA-B. This represents a lower current rating and should be evaluated for application requirements.
Q: Are packaging differences between Bulk, Tape & Reel, and Cut Tape significant?
A: Packaging format affects procurement and assembly processes but does not alter electrical or mechanical compatibility. Bulk packaging suits manual assembly; Tape & Reel and Cut Tape formats support automated pick-and-place equipment. All three formats use identical DO-15 axial component geometry.
Q: Does operating temperature range affect substitution?
A: P6KE75CA from Diotec operates from -50°C minimum versus -55°C for other variants. For applications requiring operation below -50°C, select P6KE75CA-B, SA64CA, or P6KE75CA-TP.
Q: Are all substitutes RoHS compliant?
A: P6KE75CA-B, SA64CA, and P6KE75CA-TP are ROHS3 compliant. P6KE75CA from Diotec lists RoHS status as not applicable. Verify compliance requirements for your application.
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