SMBJ5.0A-13-F - 600W TVS Diode 5V | Diodes Inc
MPN: SMBJ5.0A-13-F ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.12 | $0.12 |
| 10 | $0.098 | $0.98 |
| 100 | $0.075 | $7.50 |
| 500 | $0.062 | $31.00 |
| 1,000 | $0.05 | $50.00 |
| 3,000 | $0.0788 | $236.40 |
Drop-in alternatives for SMBJ5.0A-13-F — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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SMBJ5.0A-13-F
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View Datasheet →SMBJ5.0A-13-F Maximum Ratings & Electrical Characteristics
| Direction | Unidirectional |
| Peak Pulse Power Dissipation | 600 W (10/1000 us) |
| Reverse Standoff Voltage (Vrwm) | 5 V |
| Breakdown Voltage (min) | 6.4 V at 1 mA |
| Breakdown Voltage (typ) | 7.23 V |
| Maximum Clamping Voltage (Vc) | 9.2 V |
| Peak Pulse Current (Ipp) | 65.2 A |
| Reverse Leakage Current (Ir) | 800 uA at 5 V |
| Operating Temperature Range | -55C to +150C |
| Package | DO-214AA (SMB), 2-pin |
| Mounting Type | Surface Mount |
| Configuration | Single TVS |
| Die Construction | Glass passivated |
| Packing | Tape & Reel (-13-F suffix) |
| Lead Free | Yes |
| RoHS Status | Compliant |
SMBJ5.0A-13-F Pin Configuration
| Pin 1 | Cathode — Cathode terminal - connect to the protected positive rail (unidirectional TVS) |
| Pin 2 | Anode — Anode terminal - connect to ground (unidirectional TVS) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SMBJ5.0A-13-F is suitable for 6 applications: 5V DC Power Rail Protection, USB VBUS Port Protection, Automotive 5V Sensor Rail Clamping, Consumer Electronics Power Entry, Industrial I/O Port Surge Suppression, Networking Equipment DC Input Protection.
5V DC Power Rail Protection
The SMBJ5.0A-13-F is purpose-built for 5 V rail protection: its 5 V reverse standoff voltage sits just above the nominal rail, while the 6.4 V minimum breakdown ensures it stays non-conducting during normal operation with only 800 uA leakage at standoff. Placed directly at the power entry point with a short, wide trace to ground, it clamps inductive load-switching spikes and lightning-induced surges to 9.2 V maximum at the full 65.2 A peak pulse current. This keeps downstream LDO inputs and DC-DC converter VIN pins within their absolute maximum ratings. The trade-off is that the clamp voltage headroom must be verified against each downstream IC, since 9.2 V exceeds some tight 5 V-to-6 V rated devices.
Recommended
USB VBUS Port Protection
USB VBUS carries a nominal 5 V, making the 5 V standoff of the SMBJ5.0A-13-F an exact match. Connected from VBUS to ground at the connector, it absorbs cable-discharge and hot-plug surge energy that dedicated data-line ESD arrays cannot handle - the 600 W rating and 65.2 A Ipp provide far more surge energy absorption than small ESD arrays. The 9.2 V maximum clamp remains well below the typical 20 V absolute maximum of USB power management ICs. For full protection, pair it with a low-capacitance ESD array on D+/D- lines, since the SMBJ5.0A-13-F is intended for power-line surge events, not high-speed data-line ESD with sub-picosecond transients.
Recommended
Automotive 5V Sensor Rail Clamping
In automotive modules, internal 5 V sensor supply rails are exposed to load-dump residual transients and inductive actuator switching through shared harnesses. The -55C to +150C operating range of the SMBJ5.0A-13-F covers under-hood adjacent zone requirements, and the glass-passivated die resists avalanche-parameter drift over automotive temperature cycling. With 65.2 A surge capability at 10/1000 us, it absorbs ISO 7637-style pulse energy on 5 V reference lines feeding ADC inputs. For direct battery-rail protection, a higher-voltage SMBJ variant such as SMBJ24A should be selected instead, since the 5 V standoff is unsuitable for 12 V continuous operation.
Recommended
Consumer Electronics Power Entry
Adapters and chargers feeding 5 V consumer devices benefit from the SMBJ5.0A-13-F at the power entry node. Its low cost (sub-$0.10 in volume as of 2026-09-14) allows placing one at every connector without BOM impact, and the compact 2-pin DO-214AA footprint suits dense consumer PCBs. The 600 W rating handles adapter hot-plug transients and cable ESD energy that reach the internal rail. Placement at the first connector pin with minimal inductance to ground is critical - a long trace adds series inductance that raises effective clamping voltage during the fast initial transient, potentially exposing downstream SoCs to momentary overvoltage above their rated limits.
Recommended
Industrial I/O Port Surge Suppression
Industrial RS-485 and PLC I/O ports experience surges from long cable runs and shared grounds with heavy machinery. The SMBJ5.0A-13-F protects the isolated 5 V secondary rail and can be placed across the termination network of low-voltage signal lines. Its 65.2 A peak pulse current capability covers IEC 61000-4-5 class-level surge energies at the power input, while the fast avalanche response (nanoseconds) outpaces slower MOV-based protection, catching the leading edge that MOVs miss. In a layered protection scheme, a front-end MOV handles bulk energy and the SMBJ5.0A-13-F clamps the residual fast spike to 9.2 V, protecting transceiver supply pins.
Recommended
Networking Equipment DC Input Protection
Routers, switches, and PoE-powered devices running internal 5 V rails use the SMBJ5.0A-13-F after the DC-DC front end to clamp residual transients before distribution to sensitive PHY and MAC circuitry. Networking equipment demands high availability, and the 150C maximum operating temperature with glass-passivated die construction supports long-term reliability in fanless enclosures with elevated internal ambient. The 600 W surge rating absorbs lightning-induced surges coupled through Ethernet magnetics into the secondary-side 5 V rail, complementing the primary-side gas discharge tube and series inductor stage. Leakage of 800 uA at standoff is negligible against typical system standby budgets.
Recommended
Recommended Products Summary
Engineering reference data for SMBJ5.0A-13-F — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SMBJ5.0A-E3/52 | SMBJ5.0A (Littelfuse) | SMBJ5.0A (onsemi) | SMBJ5.0A (KYOCERA AVX) |
|---|---|---|---|---|---|
| Package | DO-214AA (SMB) | DO-214AA (SMB) - same | DO-214AA (SMB) - same | DO-214AA (SMB) - same | DO-214AA (SMB) - same |
| Brand | Diodes Incorporated | Vishay Intertechnology | Littelfuse | onsemi | KYOCERA AVX |
| Peak Pulse Power | 600 W | 600 W | 600 W | 600 W | 600 W |
| Reverse Standoff Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Max Clamping Voltage | 9.2 V | 9.2 V | 9.2 V | 9.2 V | 9.2 V |
| Peak Pulse Current | 65.2 A | 65.2 A | 65.3 A | [DATA_NEEDED] | [DATA_NEEDED] |
| Direction | Unidirectional | Unidirectional | Unidirectional | Unidirectional | Unidirectional |
| Price (1 pc, as of 2026-09-14) | $0.12 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Cost advantage in volume (vs SMBJ5.0A-E3/52 (Vishay))
- Identical ratings to Littelfuse with tight Ipp match (vs SMBJ5.0A (Littelfuse))
- Broad verified cross-brand availability (vs SMBJ5.0A (onsemi))
Design Notes
Minimize the loop inductance between the TVS and the rail being protected. Place the SMBJ5.0A-13-F within 5-10 mm of the connector or entry point, with a short wide trace (at least 2 mm) to the ground plane and multiple ground vias adjacent to the anode pad. During a fast transient, even 10 nH of trace inductance adds significant voltage overshoot (V = L * di/dt), effectively raising the clamp voltage above the 9.2 V datasheet maximum and reducing the protection margin at the IC.
Estimated: during a full 600 W, 1 ms surge, the die dissipates approximately 0.6 J of energy; the SMB package copper pads act as a short-term heat sink. Ensure at least 20 mm squared of copper area connects to both pads for repeated-surge designs. For continuous-duty environments above 85C ambient, consult the datasheet power derating curve - peak pulse power capability derates roughly linearly toward 150C, so a design validated at 25C may have less surge margin in a sealed outdoor enclosure.
Do not use the SMBJ5.0A-13-F on rails above 5 V nominal - the 6.4 V minimum breakdown means a 5.5 V rail is already at the margin, and a 12 V rail will cause destructive continuous conduction. Also remember this is a unidirectional device: the cathode (marked end) must face the positive rail. Reversed installation forward-biases the diode during normal operation and shorts the supply. For bidirectional transient environments, select the SMBJ5.0CA variant instead.
Compliance Information
RoHS compliant per JLCPCB part data and the -13-F suffix convention (lead-free, matte tin plating). REACH status not stated in provided data.
