The 5.0SMDJ26CA is a bidirectional TVS Zener diode in the DO-214AB (SMC) package, standoff rated 26 V — the CA suffix confirms it clamps both polarities, so a single device protects a differential telecom signal pair without requiring two diodes back-to-back. At 5000 W peak pulse capacity (10/1000 µs waveform), the 42.1 V maximum clamping voltage sets the let-through ceiling the downstream circuit sees during a surge — that ceiling, not the standoff, is what the protection design lives or dies by. Peak pulse current is 119 A at the 10/1000 µs spec wave — telecom line cards often face shorter-duration ringing transients, and the diode's response time keeps the clamping action ahead of the event, but confirm the event energy at your port matches the 5 kW/10/1000 µs derating curve before locking in the BOM. Junction temperature runs to 150°C max — the 185°C span from -65°C gives headroom for base-station outdoor enclosures and power-supply rail protection that sees self-heating during clamping events.
Littelfuse 5.0SMDJ26CA TVS Diode, 5kW, 26V standoff, SMC
MPN5.0SMDJ26CA
Active
Littelfuse 5.0SMDJ26CA Zener TVS, bidirectional, 26V standoff, 5000W peak pulse, 119A peak pulse current, DO-214AB SMC, surface mount.
$1.7500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | 5.0SMDJ |
| Mounting | Surface Mount |
| Voltage - breakdown | 28.9V |
| Voltage - clamping (Max) @ ipp | 42.1V |
| Voltage - reverse standoff | 26V |
| Current - peak pulse (10/1000μs) | 119A |
| Power - peak pulse | 5000W (5kW) |
| Power line protection | No |
| Operating temperature | -65°C~150°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Applications | Telecom |
| Case | DO-214AB, SMC |
| Bidirectional channels | 1 |
Product details
Frequently asked questions
What type is the 5.0SMDJ26CA — and what series does it belong to?
The 5.0SMDJ26CA is a Zener-type bidirectional TVS diode in the 5.0SMDJ series, housed in the DO-214AB (SMCJ) package — the CA suffix denotes the bidirectional polarity variant.
Where can I source the 5.0SMDJ26CA and what are the delivery terms?
The 5.0SMDJ26CA is available to order against BOM quantities through independent distribution channels. Quote and availability confirmed at RFQ — no stock-holding claim is made on this listing.