SMBJ5.0AHE3_A/H - 600W 5V TVS Diode SMB AEC-Q101 | Vishay
MPN: SMBJ5.0AHE3_A/H ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.4488 | $0.45 |
| 10 | $0.38192 | $3.82 |
| 100 | $0.26576 | $26.58 |
| 500 | $0.22 | $110.00 |
| 1,000 | $0.18 | $180.00 |
Drop-in alternatives for SMBJ5.0AHE3_A/H — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SMBJ5.0AHE3_B/H
✅ Drop-In📋 Reference alternative (not in catalog)
SMBJ5.0A
✅ Drop-In✓ In Stock
$0.024 / Unit
View Datasheet →SMBJ5.0A-E3/52
✅ Drop-In✓ In Stock
$0.07 / Unit
View Datasheet →SMBJ5.0A-13-F
✅ Drop-In✓ In Stock
$0.05 / Unit
View Datasheet →SMBJ5.0A-F1-0000HF
✅ Drop-In✓ In Stock
$0.038 / 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 →SMBJ5.0AHE3_A/H Maximum Ratings & Electrical Characteristics
| Peak Pulse Power Dissipation | 600 W (10/1000 us) |
| Reverse Standoff Voltage (VRWM) | 5.0 V |
| Breakdown Voltage Tolerance | 5 percent (HE series tight tolerance) |
| Maximum Clamping Voltage (VC) | 9.2 V |
| Peak Pulse Current (IPP) | 65.2 A |
| Polarity | Unidirectional |
| Package | SMB (DO-214AA) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q101 (Automotive) |
| Category | TVS Diode / ESD Protection |
| Series | SMBJ5.0A thru SMBJ188A (TransZorb) |
| Response Time | < 1.0 ps (unidirectional, per SMBJ family datasheet) |
| Packaging | Tape and Reel (T/R) |
| RoHS Status | RoHS compliant |
| UL Recognition | UL 497B recognized protectors (file E136766, per datasheet) |
SMBJ5.0AHE3_A/H Pin Configuration
| Pin 1 | Cathode — Cathode terminal (band-marked); connect to protected 5 V rail |
| Pin 2 | Anode — Anode terminal; connect to ground |
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
SMBJ5.0AHE3_A/H is suitable for 6 applications: 5 V Logic Rail and MCU Protection, USB Port and Consumer Electronics Protection, Automotive Module Input Protection, Industrial Sensor and IO Signal Lines, Telecom and Networking Equipment Protection, Battery-Powered and Portable Device Charging Inputs.
5 V Logic Rail and MCU Protection
The SMBJ5.0AHE3_A/H is placed directly across 5 V microcontroller and logic supply rails where its 5.0 V reverse standoff voltage keeps it non-conducting during normal operation, while the 9.2 V maximum clamp and 65.2 A surge capability absorb events from inductive load switching or coupled surges. The tight 5 percent breakdown tolerance of the HE3 grade ensures predictable clamping start across production units. Mounted close to the protected IC with short, wide traces and a low-inductance ground return, the diode diverts transient energy before it can exceed the absolute maximum ratings of 5 V-tolerant MCUs, memories, and logic devices, and its AEC-Q101 grade supports long-life industrial and automotive controllers.
Recommended
USB Port and Consumer Electronics Protection
USB VBUS lines operating at 5 V are a natural fit for the SMBJ5.0AHE3_A/H: the standoff voltage matches the nominal bus, and the 600 W peak pulse rating handles ESD strikes and hot-plug cable transients that would otherwise damage host controllers and hubs. Because the device responds with sub-nanosecond avalanche action per the Vishay SMBJ datasheet, it clamps the leading edge of an ESD event without the slow turn-on of varistors. Place the TVS at the connector side with a solid ground plane to minimize loop inductance. The SMB (DO-214AA) package is low profile and automation-friendly, ideal for high-volume consumer PCB assembly, and LCSC and Fly-Wing stock supports volume sourcing.
Recommended
Automotive Module Input Protection
With AEC-Q101 qualification confirmed by the Arrow product listing, the SMBJ5.0AHE3_A/H protects 5 V sensor and communication inputs in automotive electronic control modules exposed to load-dump-adjacent transients, inductive actuator switching, and cable-coupled surges. The HE3 high-temperature grade extends operational capability in under-hood and engine-bay environments. On a module power or signal entry, the TVS works with upstream series resistance or a relay/fuse to absorb surge energy, clamping to 9.2 V maximum at 65.2 A. Designers should verify cumulative surge energy against the 600 W 10/1000 us rating and account for derating at elevated ambient temperature per the Vishay datasheet power derating curve.
Recommended
Industrial Sensor and IO Signal Lines
Industrial environments impose inductive switching transients from contactors, solenoids, and motor wiring on long sensor and IO lines. The Vishay SMBJ datasheet explicitly targets protection of signal lines of sensor units for consumer, computer, industrial, and telecommunication equipment. The SMBJ5.0AHE3_A/H clamps these surges at its 9.2 V ceiling, protecting 5 V signaling front-ends, isolated transceiver secondaries, and ADC inputs. The 65.2 A peak pulse capability handles multi-kilowatt-class microsecond transients, and the unidirectional polarity also clips negative line noise via forward conduction at roughly 3.5 V. Position the TVS at the terminal block entry and keep the surge return path wide and direct on the PCB.
Recommended
Telecom and Networking Equipment Protection
Telecom line cards, routers, and switches run 5 V rails feeding PHYs and controllers that are vulnerable to surges induced on long cables and backplanes. The SMBJ5.0AHE3_A/H offers sub-picosecond-class response for unidirectional devices per the Vishay SMBJ family datasheet, clamping fast transients before PHY absolute maxima are exceeded. UL 497B recognition of the SMBJ family under file E136766 (noted in the datasheet) supports its use in protector-classified telecom equipment. With 600 W surge capability and the automated-placement-friendly SMB package, it integrates into dense port-protection arrays; the tight 5 percent VBR tolerance keeps clamping thresholds consistent across thousands of ports in production.
Recommended
Battery-Powered and Portable Device Charging Inputs
Charger inputs of portable and battery-powered devices see transient events from adapter hot-plug, cable inductance, and fault conditions on 5 V USB power sources. The SMBJ5.0AHE3_A/H, with its exact 5.0 V standoff and 9.2 V clamp, protects charger IC inputs and battery-management front ends while remaining invisible during normal charging operation. Its 600 W pulse rating absorbs adapter misbehavior transients, and the unidirectional topology naturally clamps negative spikes (reverse adapter insertion noise) at the low forward drop. The low-profile SMB (DO-214AA) package suits space-constrained handheld layouts, and wide distributor stock (15,000+ units at Fly-Wing, LCSC in stock) secures supply for high-volume portable products.
Recommended
Recommended Products Summary
Engineering reference data for SMBJ5.0AHE3_A/H — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SMBJ5.0AHE3_B/H | SMBJ5.0A-13-F | SMBJ5.0A (Littelfuse) | SMBJ5.0A (Bourns) |
|---|---|---|---|---|---|
| Package | SMB (DO-214AA) | SMB (DO-214AA) - same | SMB (DO-214AA) - same | SMB (DO-214AA) - same | SMB (DO-214AA) - same |
| Brand | Vishay General Semiconductor | Vishay General Semiconductor | Diodes Incorporated | Littelfuse | Bourns |
| Peak Pulse Power | 600 W | 600 W | 600 W | 600 W | 600 W |
| Reverse Standoff Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 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 | 65.2 A | 65.2 A | 65.2 A |
| VBR Tolerance | 5 percent (HE grade) | 5 percent (HE grade) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Automotive Grade (AEC-Q101) | Yes | Yes | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- AEC-Q101 automotive qualification (vs SMBJ5.0A (Littelfuse))
- Tight 5 percent breakdown voltage tolerance (vs SMBJ5.0A (Vishay standard))
- Extended high-temperature grade (HE3) (vs SMBJ5.0A-13-F)
Design Notes
Surge current path inductance dominates real-world clamping performance. Place the SMBJ5.0AHE3_A/H within a few millimeters of the connector or protected node, use wide (at least 2 mm) traces rated for 65 A peak pulse current, and return surge current to ground through a via cluster or dedicated ground plane rather than a single thin trace. Estimated: even 10 nH of loop inductance adds about 6.5 V of overshoot at a 65 A, 1 us/s slew surge (V = L di/dt), potentially doubling the effective clamp voltage seen by the IC.
The 600 W rating applies to the 10/1000 us exponential pulse on an adequate PCB copper area per the Vishay SMBJ datasheet. For repetitive or long transients, apply the datasheet power derating curve against ambient temperature and verify the SMB pad connects to sufficient copper (typically a square inch or more of 1 oz copper for sustained stress). Estimated: repeated 600 W, 1 ms events require checking the average power duty cycle so junction temperature stays within the extended HE3-grade temperature range.
Do not use this part on rails above 5.0 V nominal: leakage current rises sharply near the minimum breakdown voltage, and standby leakage can erode battery life. If clamping behavior must be tightly controlled across temperature and production spread, the HE 5 percent tolerance grade is an advantage over standard SMBJ5.0A parts, but confirm the substitute's tolerance grade in cross-brand designs. Also confirm the cathode band orientation: a reversed unidirectional TVS conducts continuously through the forward diode and shorts the rail.
Compliance Information
RoHS compliant per Fly-Wing and Mouser listings. AEC-Q101 qualified per Arrow.com listing (automotive discrete qualification; AEC-Q101 applies to discrete semiconductors rather than AEC-Q100). UL 497B recognition noted in Vishay SMBJ datasheet under file E136766.
