CD214A-T36CALF Equivalent & Substitute Parts

Part Overview

The CD214A-T36CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., classified as a Zener-type bidirectional TVS device in the DO-214AC (SMA) surface mount package. This component is rated for 36V reverse standoff voltage with a 58.1V maximum clamping voltage and 6.9A peak pulse current capability. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214A-T36CALF
Manufacturer	Bourns Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Bidirectional Channels	1
Voltage - Reverse Standoff (Typ)	36V
Voltage - Breakdown (Min)	40V
Voltage - Clamping (Max) @ Ipp	58.1V
Current - Peak Pulse (10/1000µs)	6.9A
Power - Peak Pulse	400W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AC, SMA
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD214A-T36CALF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Reverse standoff voltage: 36V nominal
Clamping voltage: 58.1V maximum at Ipp
Peak pulse current: 6.9A nominal
Peak pulse power: 400W
Package type: DO-214AC (SMA) surface mount
Bidirectional channels: 1
Zener type classification

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications (36V standoff, 58.1V clamp, 6.9A Ipp, 400W power) and active product status, enabling direct replacement without circuit redesign.

Similar Alternatives: Parts with comparable but not identical electrical parameters (voltage standoff within ±3V, clamping voltage within ±5V, peak current within ±2A, power rating ≥400W) that maintain functional compatibility for general-purpose transient suppression applications while offering enhanced availability or extended temperature ranges.

Parameter Comparison

Part Number	Manufacturer	Standoff Voltage (V)	Breakdown Min (V)	Clamp Voltage (V)	Peak Current (A)	Power (W)	Temp Range (°C)	Status
CD214A-T36CALF	Bourns Inc.	36	40	58.1	6.9	400	-55 ~ 150	Obsolete
SMAJ36CA	MDD	36	40	58.1	6.9	400	-50 ~ 150	Active
SMA5J36CA-M3/5A	Vishay	36	40	58.1	8.6	500	-55 ~ 150	Active
SMA5J36CA-M3/61	Vishay	36	40	58.1	8.6	500	-55 ~ 150	Active
P4SMA43CA-M3/5A	Vishay	36.8	40.9	59.3	6.7	400	-65 ~ 150	Active
P4SMA43CA-M3/61	Vishay	36.8	40.9	59.3	6.7	400	-65 ~ 150	Active
P4SMA39CA-M3/5A	Vishay	33.3	37.1	53.9	7.4	400	-65 ~ 150	Active
P4SMA39CA-M3/61	Vishay	33.3	37.1	53.9	7.4	400	-65 ~ 150	Active
SMA5J33CA-M3/5A	Vishay	33	36.7	53.3	9.4	500	-55 ~ 150	Active
SMA5J33CA-M3/61	Vishay	33	36.7	53.3	9.4	500	-55 ~ 150	Active

Engineering Selection Recommendations

Direct Replacement (Preferred):

SMAJ36CA (MDD) provides identical electrical specifications to the CD214A-T36CALF with active product status and ROHS3 compliance. This part is the primary recommendation for direct substitution. The only parameter variance is the minimum operating temperature (-50°C versus -55°C), which is acceptable for most general-purpose applications. Inventory availability is substantial (25,300 units).

Enhanced Performance Alternatives:

SMA5J36CA-M3/5A and SMA5J36CA-M3/61 (Vishay TransZorb®) maintain identical voltage specifications (36V standoff, 58.1V clamp) while providing increased peak pulse current (8.6A versus 6.9A) and power dissipation (500W versus 400W). These parts offer superior transient suppression capability and extended temperature range matching the original specification (-55°C to 150°C). Both variants are active products with ROHS3 compliance.

Voltage-Variant Alternatives:

P4SMA43CA-M3/5A and P4SMA43CA-M3/61 (Vishay TransZorb®) operate at 36.8V standoff with 59.3V clamping voltage, representing a +0.8V standoff and +1.2V clamp variance. These are suitable where slight voltage tolerance increases are acceptable. Extended temperature range (-65°C to 150°C) and active status support long-term availability.

P4SMA39CA-M3/5A and P4SMA39CA-M3/61 (Vishay TransZorb®) operate at 33.3V standoff with 53.9V clamping voltage. These represent lower voltage alternatives suitable only for applications with reduced transient voltage requirements.

SMA5J33CA-M3/5A and SMA5J33CA-M3/61 (Vishay TransZorb®) operate at 33V standoff with 53.3V clamping voltage and enhanced current handling (9.4A). These are lower voltage alternatives with increased power dissipation (500W).

All substitute parts maintain DO-214AC (SMA) package compatibility, single bidirectional channel configuration, Zener type classification, ROHS3 compliance, and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can SMAJ36CA directly replace CD214A-T36CALF without circuit modification?

A: Yes. SMAJ36CA provides identical electrical specifications across all critical parameters: 36V reverse standoff, 40V minimum breakdown, 58.1V maximum clamping voltage, and 6.9A peak pulse current. The -50°C minimum operating temperature (versus -55°C) represents the only variance and is acceptable for general-purpose applications. No circuit redesign is required.

Q: What is the advantage of using SMA5J36CA variants over SMAJ36CA?

A: SMA5J36CA-M3/5A and SMA5J36CA-M3/61 maintain identical voltage specifications while providing increased peak pulse current (8.6A versus 6.9A) and power dissipation (500W versus 400W). This enhanced capability provides superior transient suppression margin and improved thermal performance under high-energy transient events. Operating temperature range matches the original specification (-55°C to 150°C).

Q: Are P4SMA43CA variants suitable substitutes?

A: P4SMA43CA-M3/5A and P4SMA43CA-M3/61 are suitable for applications tolerating slight voltage parameter variance. Standoff voltage is 36.8V (+0.8V) and clamping voltage is 59.3V (+1.2V) relative to the original specification. Peak current is 6.7A (-0.2A). These parts offer extended temperature range (-65°C to 150°C) and active product status. Circuit validation is recommended to confirm voltage tolerance compatibility.

Q: Why are lower voltage alternatives (P4SMA39CA, SMA5J33CA) listed?

A: These parts are included as similar alternatives for reference. P4SMA39CA and SMA5J33CA operate at 33V and 33.3V standoff respectively, representing approximately 8% voltage reduction. These are suitable only for applications with reduced transient voltage requirements or where lower clamping voltage is acceptable. Direct substitution in circuits designed for 36V standoff is not recommended without circuit analysis.

Q: What packaging variants are available?

A: All substitute parts are supplied in DO-214AC (SMA) surface mount package, maintaining mechanical compatibility with the original CD214A-T36CALF. Tape & Reel (TR) packaging is available for high-volume production. No package conversion is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental and regulatory status.

Q: What is the difference between M3/5A and M3/61 packaging designations?

A: Both designations refer to Tape & Reel (TR) packaging variants with identical electrical specifications. The suffix variation indicates different reel configurations or supplier packaging standards. Electrical performance and compatibility are identical.

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