P6KE220A-T Equivalent & Substitute Parts

Part Overview

The P6KE220A-T is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in through-hole applications. This unidirectional Zener diode operates with a reverse standoff voltage of 185V and provides clamping at 328V maximum, with a peak pulse current rating of 1.83A. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	185V
Voltage - Breakdown (Min)	209V
Voltage - Clamping (Max) @ Ipp	328V
Current - Peak Pulse (10/1000µs)	1.83A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE220A-T is determined by the following critical parameters: reverse standoff voltage (185V), breakdown voltage minimum (209V), clamping voltage maximum (328V), package type (DO-15/DO-204AC through-hole), and operating temperature range compatibility. All identified substitutes maintain these core electrical specifications within the same package family, ensuring functional equivalence in circuit protection applications.

The substitute parts are grouped into three categories based on manufacturer and product status:

Direct Substitutes (Active Status): Parts with identical electrical ratings and through-hole packaging from alternative manufacturers. These include P6KE220A-B (Littelfuse), P6KE220A-AP (Micro Commercial Co), P6KE220A-BP (Micro Commercial Co), P6KE220A-G (Comchip Technology), and P6KE220A-TP (Micro Commercial Co).

Upgrade Option (Active Status): P6KE220A from Fairchild Semiconductor, which maintains all core electrical parameters and offers the highest inventory availability.

Manufacturer Recommended (Active Status): P6KE220A-HF from Comchip Technology, designated as the manufacturer-recommended alternative with identical electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Status	VWM (Typ)	VBR (Min)	VC (Max)	Ipp (A)	Temp Range	Package	Inventory
P6KE220A-T	Diodes Incorporated	Obsolete	185V	209V	328V	1.83A	-55°C ~ 175°C	DO-15	1033 Pcs
P6KE220A-B	Littelfuse Inc.	Active	185V	209V	328V	1.9A	-55°C ~ 175°C	DO-204AC	831 Pcs
P6KE220A-AP	Micro Commercial Co	Active	185V	209V	328V	1.9A	-55°C ~ 175°C	DO-15	1063 Pcs
P6KE220A-BP	Micro Commercial Co	Active	185V	209V	328V	1.9A	-55°C ~ 175°C	DO-15	954 Pcs
P6KE220A-G	Comchip Technology	Active	185V	209V	328V	1.83A	-55°C ~ 150°C	DO-15	909 Pcs
P6KE220A-TP	Micro Commercial Co	Active	185V	209V	328V	1.9A	-55°C ~ 175°C	DO-15	4700 Pcs
P6KE220A	Fairchild Semiconductor	Active	185V	209V	328V	1.9A	-50°C ~ 175°C	DO-15	25300 Pcs
P6KE220A-HF	Comchip Technology	Active	185V	209V	328V	1.83A	-55°C ~ 150°C	DO-15	1064 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain active product status and are ROHS3 compliant, ensuring long-term availability and regulatory compliance. Selection should prioritize parts with matching operating temperature ranges to the original specification.

For applications requiring the full -55°C to 175°C operating range, P6KE220A-TP (Micro Commercial Co, 4700 Pcs inventory) and P6KE220A (Fairchild Semiconductor, 25300 Pcs inventory) are optimal choices. P6KE220A-TP is supplied in cut tape format, while P6KE220A is available in bulk packaging.

For applications with reduced temperature requirements (-55°C to 150°C), P6KE220A-G (Comchip Technology) and P6KE220A-HF (Comchip Technology) are suitable alternatives with equivalent electrical performance.

P6KE220A-B from Littelfuse Inc. provides an alternative with DO-204AC packaging designation, functionally equivalent to DO-15 in through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can P6KE220A-TP replace P6KE220A-T directly in existing designs?

A: Yes. P6KE220A-TP maintains identical reverse standoff voltage (185V), breakdown voltage (209V), clamping voltage (328V), and operating temperature range (-55°C to 175°C). The primary difference is packaging format (cut tape versus original supplier packaging). Both are through-hole DO-15 devices with equivalent electrical performance.

Q: What is the difference between DO-15 and DO-204AC packaging?

A: DO-15 and DO-204AC are equivalent designations for the same through-hole axial package. Both refer to a two-lead axial component with identical physical dimensions and mounting characteristics. Parts specified as either designation are mechanically and electrically interchangeable.

Q: Why does P6KE220A-G have a lower maximum operating temperature (150°C vs 175°C)?

A: P6KE220A-G is rated to -55°C to 150°C junction temperature, compared to the original -55°C to 175°C. This represents a reduced upper temperature limit. For applications operating consistently below 150°C, this part is functionally equivalent. Applications requiring sustained operation above 150°C should use P6KE220A-TP or P6KE220A.

Q: What is the significance of peak pulse current differences (1.83A vs 1.9A)?

A: The original P6KE220A-T and certain substitutes (P6KE220A-G, P6KE220A-HF) are rated at 1.83A peak pulse current, while others (P6KE220A-B, P6KE220A-AP, P6KE220A-BP, P6KE220A-TP, P6KE220A) are rated at 1.9A. Both ratings exceed the original specification and provide equivalent or improved transient protection capability.

Q: Which substitute offers the best inventory availability?

A: P6KE220A from Fairchild Semiconductor offers the highest inventory level at 25,300 pieces, followed by P6KE220A-TP at 4,700 pieces. Both maintain the full -55°C to 175°C operating range and are suitable for high-volume procurement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message