SMAJ22CA-E3/61 Vishay TVS Diode (Bi-directional) (Diodes Moulded Non Polarised) In Stock
Vishay SMAJ22CA-E3/61 is a bidirectional TVS diode in SMA package designed to protect electronics from transient voltage surges, with a 22 V standoff voltage, 35.5 V clamping voltage, and 400 W peak pulse power capability.
- Manufacturer
- Vishay
- Package
- Diodes Moulded Non Polarised
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- SMAJ22CA-E3/61 Datasheet PDF
- Category
- TVS Diode (Bi-directional)
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Bidirectional TVS protection for AC and DC circuits with 22 V standoff voltage
- 400 W peak pulse power dissipation (10/1000 µs waveform) for robust transient suppression
- Low clamping voltage of 35.5 V max ensures tight protection margins
- SMA (DO-214AC) surface-mount package for compact PCB designs
- Silicon avalanche technology for fast response time under 1 ps
Applications
The SMAJ22CA-E3/61 is ideal for protecting sensitive electronics in industrial control systems, telecommunications equipment, and automotive electronics from ESD and transient voltage spikes. Its bidirectional configuration makes it suitable for AC line protection and data line surge suppression in communication interfaces. With a 22 V standoff voltage, it is commonly used in power supply protection, RS-485 bus lines, and motor drive circuits operating in harsh electrical environments.
Specifications
| Factory Lead Time | 11Weeks |
| YTEOL | 6 |
| Additional Feature | EXCELLENT CLAMPING CAPABILITY |
| Breakdown Voltage-Max | 26.9V |
| Breakdown Voltage-Min | 24.4V |
| Breakdown Voltage-Nom | 25.65V |
| Clamping Voltage-Max | 35.5V |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| JEDEC-95 Code | DO-214AC |
| JESD-30 Code | R-PDSO-C2 |
| JESD-609 Code | e3 |
| Non-rep Peak Rev Power Dis-Max | 400W |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity | BIDIRECTIONAL |
| Power Dissipation-Max | 3.3W |
| Qualification Status | Not Qualified |
| Reference Standard | UL RECOGNIZED |
| Rep Pk Reverse Voltage-Max | 22V |
| Reverse Current-Max | 1 µA |
| Reverse Test Voltage | 22V |
| Surface Mount | YES |
| Technology | AVALANCHE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | C BEND |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Diodes Moulded Non Polarised |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
| Country of Origin | Mainland China, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the peak pulse power rating of the SMAJ22CA-E3/61, and how does it handle transient events?
The SMAJ22CA-E3/61 can dissipate up to 400 W of peak pulse power using a 10/1000 µs waveform. This allows it to absorb significant energy from ESD events and voltage transients, clamping the voltage to a maximum of 35.5 V to protect downstream circuitry from damage.
Why choose a bidirectional TVS diode like the SMAJ22CA for AC power line applications?
A bidirectional TVS diode protects against both positive and negative voltage surges, making it essential for AC circuits. The SMAJ22CA has a 22 V standoff voltage and clamps at 35.5 V max, providing symmetrical protection on both half-cycles of an AC waveform in systems like industrial motor drives or HVAC controllers.
How does the SMA (DO-214AC) package of the SMAJ22CA-E3/61 benefit high-density PCB designs?
The SMA surface-mount package occupies only about 5.2 mm x 2.7 mm of board space, enabling compact layouts without through-hole drilling. It supports reflow soldering and withstands a junction temperature range of -55°C to +150°C, making it suitable for automated assembly in space-constrained applications like telecom modules.
When would SMAJ22CA-E3/61 be a better alternative to a unidirectional TVS diode on a data interface?
On bidirectional data lines such as RS-485 or CAN bus operating near 22 V rails, the SMAJ22CA-E3/61 provides protection in both signal polarities within a single 2-pin SMA package, reducing component count. A unidirectional TVS in this role would only clamp one polarity, leaving the line vulnerable to reverse transients exceeding the breakdown voltage of 24.4 V minimum.
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