P6KE56A Alternative / Equivalent / Replacement

YINT Electronics — 600W Unidirectional TVS Diode, 47.8V Stand-off, DO-15

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1. Introduction

The P6KE56A is a 600W unidirectional TVS diode for protecting 56V DC power rails against transients from lightning, inductive load switching, and ESD. It handles 7.80A peak pulse current and clamps at 77.0V maximum. With a stand-off voltage of 47.8V and breakdown range of 53.2V to 58.8V, this device provides reliable overvoltage clamping for industrial, telecom, and automotive applications.

The P6KE56A is a JEDEC-registered industry standard part cross-compatible with Littelfuse, Vishay, ON Semi, Diodes Inc, STMicroelectronics, Bourns, and Taiwan Semiconductor. YINT Electronics manufactures it as a drop-in replacement in the DO-15 through-hole package with sub-nanosecond response time.

2. Product Overview

The P6KE series covers breakdown voltages from 6.8V to 440V in the DO-15 package. Each device delivers 600W peak pulse power (10/1000µs), suitable for applications from low-voltage logic to high-voltage industrial power systems. The DO-15 axial package provides robust thermal performance and mechanical strength for demanding environments.

The P6KE56A protects 56V DC rails in industrial controllers, automotive electronics, battery management systems, and telecom equipment. Its 47.8V stand-off voltage lets it sit across the supply line without conducting (5.0µA max leakage at 25°C). It responds in under 1ns when a transient exceeds the minimum breakdown threshold of 53.2V.

YINT produces the full P6KE series from P6KE6.8A through P6KE440A, enabling customers to source all DO-15 TVS needs from one manufacturer with consistent quality and supply.

3. Key Features

• Peak Pulse Power: 600W — 10/1000µs waveform
• Stand-off Voltage: 47.8V — For 56V DC power rail protection
• Breakdown Range: 53.2V ~ 58.8V — Tight tolerance
• Clamping Voltage: 77.0V max @ 7.80A — Minimizes component stress
• Reverse Leakage: 5.0µA max — Low standby power loss
• Response Time: < 1ns — Instant transient protection
• Surge Current: 7.80A — 10/1000µs waveform
• Temp Range: -55°C to +150°C — Industrial and automotive grade
• DO-15 Package — Industry-standard through-hole
• RoHS Compliant — Lead-free

4. Specifications

5. Cross Reference

6. Comparison with Similar Models

The P6KE56A offers the right protection level for 56V DC rail circuits. For lower or higher voltages, the P6KE51A and P6KE62A provide nearby options in the same DO-15 package.

7. Applications

• 56V DC power rail surge protection in industrial control systems
• Automotive electronics — 24V battery line transient suppression per ISO 7637-2
• Switching power supply output and intermediate bus protection
• Telecom base station DC power input transient clamping
• Lightning surge protection per IEC 61000-4-5
• Motor drive and relay inductive load switching protection
• Solar inverter and battery charger DC bus protection
• HVAC and building automation system power rail clamping

8. Why Choose YINT

• 19+ years of manufacturing expertise with 5 R&D and manufacturing bases since 2006
• 40+ patents and certifications; rigorous testing per JEDEC and MIL-STD standards
• Full P6KE series from P6KE6.8A through P6KE440A for one-stop sourcing
• Direct OEM replacement — pin-to-pin compatible with P6KE56A from all major brands
• In-house engineering support for cross-reference and design review
• Free samples available for testing and qualification
• Factory-direct pricing with volume discounts

9. Ordering Information

10. FAQ

Q1: Is YINT P6KE56A a direct replacement for Littelfuse / Vishay / ON Semi P6KE56A?
A: Yes. The YINT P6KE56A has identical electrical specs and DO-15 package dimensions. It is a drop-in replacement for P6KE56A from all major manufacturers.

Q2: What is the difference between P6KE56A and P6KE56CA?
A: P6KE56A is unidirectional (for DC circuits). P6KE56CA is bidirectional (for AC circuits).

Q3: What is the peak pulse power rating?
A: 600W for a 10/1000µs waveform at 25°C. Derate linearly above 25°C.

Q4: What is the stand-off voltage?
A: 47.8V. The device does not conduct below this voltage, with leakage of 5.0µA max.

Q5: What package is available?
A: DO-15 (DO-204AC) through-hole. For SMD alternatives, consider SMAJ or SMBJ series equivalents.

Q6: What is the response time?
A: Less than 1 nanosecond, providing instant protection against ESD and fast transients.

11. Conclusion

YINT Electronics' P6KE56A TVS diode is a reliable, high-performance replacement for industry-standard P6KE56A from Littelfuse, Vishay, ON Semi, and other major brands. With 53.2-58.8V breakdown range and 77.0V clamping voltage at 7.80A, it delivers robust transient protection for 56V DC power systems.

For datasheets, samples, or technical inquiries, contact YINT Electronics at global@yint.com.cn.