SMAJ200C Equivalent & Substitute Parts

Part Overview

The SMAJ200C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 200V reverse standoff voltage, 340.2V maximum clamping voltage, and 1.2A peak pulse current capability in a DO-214AC (SMA) package. The SMAJ200C is classified as obsolete, necessitating identification of active equivalent parts that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

SMAJ200C

Littelfuse Inc.In Stock: 968SMAJ200C Datasheet

Current PartRFQ

SMAJ200CA

MeritekIn Stock: 36839SMAJ200CA Datasheet

DirectRFQ

SMAJ200CA-13-F

Diodes IncorporatedIn Stock: 6242SMAJ200CA-13-F Datasheet

MFR RecommendedRFQ

SMAJ200CA-TP

Micro Commercial CoIn Stock: 786SMAJ200CA-TP Datasheet

MFR RecommendedRFQ

TV04A201JB-HF

Comchip TechnologyIn Stock: 888TV04A201JB-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMAJ200C is determined by the following critical parameters:

• Reverse Standoff Voltage: 200V (all substitutes maintain this specification)
• Package / Case: DO-214AC (SMA) surface-mount configuration (all substitutes use identical package)
• Bidirectional Channels: 1 (all substitutes are single-channel devices)
• Type: Zener TVS diode (all substitutes are Zener-type)
• Power - Peak Pulse: 400W (all substitutes maintain this rating)
• RoHS Compliance: ROHS3 Compliant (all substitutes meet this requirement)

The substitute parts listed below meet these core electrical and mechanical requirements. Variations in clamping voltage (324V vs. 340.2V) and peak pulse current (1.2A to 1.23A) fall within acceptable tolerance ranges for general-purpose TVS applications and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are classified as active products, ensuring ongoing availability and manufacturing support. Each substitute maintains ROHS3 compliance and MSL Level 1 rating, meeting environmental and reliability standards equivalent to the original SMAJ200C.

SMAJ200CA (Meritek) provides direct electrical equivalence with 36,789 units in stock, offering the highest inventory availability for immediate procurement.

SMAJ200CA-13-F (Diodes Incorporated) is designated as the manufacturer-recommended substitute, with 6,148 units available. This part carries explicit MFR recommendation status and maintains full electrical compatibility.

SMAJ200CA-TP (Micro Commercial Co) extends the upper operating temperature limit to 175°C, providing enhanced thermal performance for applications requiring elevated temperature operation. Inventory: 746 units.

TV04A201JB-HF (Comchip Technology) offers an alternative cross-manufacturer solution with 861 units in stock, maintaining all critical electrical parameters and package specifications.

Frequently Asked Questions (FAQ)

Q: Can SMAJ200CA substitute for SMAJ200C in all applications? A: Yes. Both parts share identical reverse standoff voltage (200V), package configuration (DO-214AC/SMA), power rating (400W), and compliance certifications. The clamping voltage difference (324V vs. 340.2V) and peak pulse current variation (1.23A vs. 1.2A) are within acceptable tolerance ranges for general-purpose TVS applications.

Q: What is the difference between the substitute parts? A: All substitutes maintain the same 200V reverse standoff voltage, DO-214AC package, and 400W power rating. Primary differences are manufacturer identity, inventory availability, and operating temperature ranges. SMAJ200CA-TP supports operation to 175°C, compared to 150°C for other substitutes.

Q: Is the SMAJ200CA-13-F recommended over other substitutes? A: SMAJ200CA-13-F carries manufacturer-recommended designation from Diodes Incorporated. Selection should prioritize availability, lead time, and cost considerations alongside this recommendation status.

Q: Are all substitutes surface-mount compatible with the original SMAJ200C footprint? A: Yes. All substitute parts use the DO-214AC (SMA) package, ensuring mechanical and footprint compatibility with existing PCB designs.

Q: Do all substitutes meet RoHS and MSL requirements? A: Yes. All substitute parts are ROHS3 compliant with MSL Level 1 (Unlimited) rating, matching the original SMAJ200C specifications.