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 |
SMBJ5.0A-13-F Overview
A TVS diode is a type of overvoltage protection device that clamps fast voltage transients - such as ESD, EFT, lightning-induced surges, and inductive load-switching spikes - by avalanching within nanoseconds and diverting surge current away from the protected circuit. TVS diodes sit within the broader hierarchy of circuit protection devices alongside varistors and gas discharge tubes, offering the fastest response and tightest clamping of the three.
Key features of the SMBJ5.0A-13-F include 600 W peak pulse power dissipation (10/1000 us waveform), a low 6.4 V minimum breakdown voltage for a 5 V standoff, a 7.23 V breakdown typical figure, and a low leakage current of 800 uA at standoff. The glass-passivated die construction ensures stable avalanche characteristics and long-term reliability across the -55C to +150C operating range.
The unidirectional construction clamps positive transients to 9.2 V maximum and conducts negative transients as a forward-biased diode at approximately 0.7 V, making it ideal for protecting DC power rails, USB lines, RS-485 interfaces, and low-voltage sensor inputs. The -13-F suffix denotes Diodes Incorporated's lead-free, RoHS-compliant tape-and-reel packing variant of the standard SMBJ5.0A.
Typical applications include 5 V DC power bus protection, automotive 12 V auxiliary rail clamping, consumer electronics power entry protection, and industrial I/O port surge suppression where DO-214AA footprints are already laid out.
Design consideration: verify the clamping voltage headroom - the 9.2 V maximum clamp must remain below the absolute maximum rating of the downstream IC; at 5 V rails, most logic tolerates this, but check low-voltage LDO inputs carefully.
This page synthesizes distributor pricing, verified drop-in alternatives from multiple manufacturers, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for SMBJ5.0A-13-F — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with SMBJ5.0A-13-F (same form factor and footprint) — differing in Package, Peak Pulse Current (IPP), Series, RoHS Status, Reverse Standoff Voltage (VRWM).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SMBJ5.0A-13-F
✅ Drop-In✓ In Stock
$0.05 / Unit
View Datasheet →SMBJ5.0A-E3/52
✅ Drop-In✓ In Stock
$0.07 / Unit
View Datasheet →SMBJ5.0A
✅ Drop-In✓ In Stock
$0.024 / Unit
View Datasheet →SMBJ5.0A
✅ Drop-In✓ In Stock
$0.024 / Unit
View Datasheet →SMBJ5.0A
✅ Drop-In✓ In Stock
$0.024 / Unit
View Datasheet →SMBJ5.0A
✅ Drop-In✓ In Stock
$0.024 / Unit
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) |
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 |
| Direction | Unidirectional | Unidirectional | Unidirectional | Unidirectional | Unidirectional |
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.
