CD214A-T160ALF Equivalent & Substitute Parts

Part Overview

The CD214A-T160ALF is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 160V reverse standoff voltage with a 259V maximum clamping voltage and 1.5A peak pulse current capability in a DO-214AC (SMA) package. The part is currently obsolete, making equivalent and substitute components necessary for ongoing design support and production requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	160	V
Voltage - Breakdown (Min)	178	V
Voltage - Clamping (Max) @ Ipp	259	V
Current - Peak Pulse (10/1000µs)	1.5	A
Power - Peak Pulse	400	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AC, SMA	—
Type	Zener	—
Unidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution of the CD214A-T160ALF is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): Must be 160V to maintain equivalent protection threshold
Voltage - Clamping (Max) @ Ipp: Must be 259V to ensure identical transient suppression performance
Current - Peak Pulse (10/1000µs): Must be ≥1.5A to handle equivalent or greater surge current
Power - Peak Pulse: Must be ≥400W to dissipate equivalent energy
Package / Case: Must be DO-214AC (SMA) for mechanical and electrical compatibility
Type: Must be Zener unidirectional TVS diode
Operating Temperature Range: Must support -55°C to 150°C minimum

Substitute parts are classified into two categories:

Direct Equivalents: Parts meeting all critical parameters with identical electrical performance.

Similar Substitutes: Parts with modified voltage or current ratings that provide functional protection but with different operating characteristics. These require application-level verification for suitability.

Parameter Comparison

Part Number	Manufacturer	VWM (V)	VBR (V)	VC (V)	Ipp (A)	PPP (W)	Temp Range (°C)	Package	Status
CD214A-T160ALF	Bourns Inc.	160	178	259	1.5	400	-55 to 150	DO-214AC (SMA)	Obsolete
SMAJ160A	HY Electronic (Cayman) Limited	160	178	259	1.6	400	-55 to 150	DO-214AC (SMA)	Active
SMAJ160A-TP	Micro Commercial Co	160	178	259	1.5	400	-55 to 175	DO-214AC (SMA)	Active
TV04A161J-G	Comchip Technology	160	178	259	1.54	400	-55 to 150	DO-214AC (SMA)	Active
SMAJ188A-M3/61	Vishay General Semiconductor - Diodes Division	188	209	328	0.91	300	-55 to 150	DO-214AC (SMA)	Active
SMAJP4KE220A-TP	Micro Commercial Co	185	209	328	1.3	400	-55 to 175	DO-214AC (SMA)	Active

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents)

SMAJ160A (HY Electronic), SMAJ160A-TP (Micro Commercial Co), and TV04A161J-G (Comchip Technology) are direct functional equivalents to the CD214A-T160ALF. All three maintain the 160V reverse standoff voltage, 259V clamping voltage, and 400W peak pulse power rating. These parts are currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). SMAJ160A-TP and TV04A161J-G provide extended operating temperature ranges (-55°C to 175°C and -55°C to 150°C respectively), offering additional thermal margin in high-temperature applications.

Secondary Substitutes (Modified Ratings)

SMAJ188A-M3/61 (Vishay) and SMAJP4KE220A-TP (Micro Commercial Co) feature elevated voltage ratings (188V and 185V reverse standoff respectively) with correspondingly higher clamping voltages (328V). These parts are suitable only for applications where the higher voltage threshold and clamping characteristics are compatible with circuit design requirements. Peak pulse current is reduced to 910mA and 1.3A respectively, requiring verification against circuit surge current demands.

All substitute parts maintain DO-214AC (SMA) package compatibility, unidirectional Zener diode topology, and RoHS3 compliance status, ensuring regulatory and manufacturing process alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can SMAJ160A directly replace CD214A-T160ALF without circuit modification?

A: Yes. SMAJ160A maintains identical voltage ratings (160V standoff, 259V clamping) and equivalent current handling (1.6A vs. 1.5A). The part is pin-compatible in DO-214AC (SMA) package and requires no circuit redesign.

Q: What is the difference between SMAJ160A-TP and SMAJ160A?

A: SMAJ160A-TP is supplied in Tape & Reel (TR) packaging format with an extended operating temperature range (-55°C to 175°C vs. -55°C to 150°C). Electrical performance is identical. Selection depends on procurement format and thermal operating environment requirements.

Q: Why are SMAJ188A-M3/61 and SMAJP4KE220A-TP listed as substitutes if they have different voltage ratings?

A: These parts are listed as similar substitutes based on the original component's substitute field. However, their elevated voltage ratings (188V and 185V standoff) and reduced peak pulse current (910mA and 1.3A) make them suitable only for specific applications where higher voltage suppression thresholds are acceptable. Direct substitution without application verification is not recommended.

Q: Are all substitute parts RoHS3 compliant?

A: SMAJ160A, SMAJ160A-TP, TV04A161J-G, SMAJ188A-M3/61, and SMAJP4KE220A-TP are all RoHS3 compliant. Compliance status is verified for each part in active production.

Q: What is the impact of using a substitute with higher peak pulse current (1.6A vs. 1.5A)?

A: Higher peak pulse current capability provides additional design margin and improved transient suppression performance. This is a beneficial characteristic and does not create compatibility issues.

Q: Can I use SMAJP4KE220A-TP in a 160V standoff application?

A: No. SMAJP4KE220A-TP has a 185V reverse standoff voltage, which exceeds the 160V threshold of the original circuit. This would delay transient suppression activation and is not a suitable direct replacement without circuit redesign and application verification.

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