P6SMB6.8A-E3/5B >
P6SMB6.8A-E3/5B
Vishay General Semiconductor - Diodes Division
TVS DIODE 5.8VWM 10.5VC DO214AA
6698 Pcs New Original In Stock
10.5V Clamp 57.1A Ipp Tvs Diode Surface Mount DO-214AA (SMB)
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P6SMB6.8A-E3/5B Vishay General Semiconductor - Diodes Division
5.0 / 5.0 - (326 Ratings)

P6SMB6.8A-E3/5B

Product Overview

1000649

DiGi Electronics Part Number

P6SMB6.8A-E3/5B-DG
P6SMB6.8A-E3/5B

Description

TVS DIODE 5.8VWM 10.5VC DO214AA

Inventory

6698 Pcs New Original In Stock
10.5V Clamp 57.1A Ipp Tvs Diode Surface Mount DO-214AA (SMB)
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1

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In Stock (All prices are in USD)
  • QTY Target Price Total Price
  • 1 0.0946 0.0946
  • 200 0.0367 7.3400
  • 500 0.0354 17.7000
  • 1000 0.0347 34.7000
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P6SMB6.8A-E3/5B Technical Specifications

Category Transient Voltage Suppressors (TVS), TVS Diodes

Packaging Tape & Reel (TR)

Series P6SMB, TransZorb®

Product Status Active

Type Zener

Unidirectional Channels 1

Voltage - Reverse Standoff (Typ) 5.8V

Voltage - Breakdown (Min) 6.45V

Voltage - Clamping (Max) @ Ipp 10.5V

Current - Peak Pulse (10/1000µs) 57.1A

Power - Peak Pulse 600W

Power Line Protection No

Applications General Purpose

Capacitance @ Frequency -

Operating Temperature -65°C ~ 150°C (TJ)

Mounting Type Surface Mount

Package / Case DO-214AA, SMB

Supplier Device Package DO-214AA (SMB)

Base Product Number P6SMB6.8

Datasheet & Documents

HTML Datasheet

P6SMB6.8A-E3/5B-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8541.10.0080

Additional Information

Other Names
P6SMB6.8A-E3/5BGIDKR
P6SMB6.8A-E3/5B-DG
P6SMB6.8A-E3/5BGITR
P6SMB6.8A-E3/5BGICT
Standard Package
3,200

Alternative Parts

View Details
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
1KSMB6.8A
Littelfuse Inc.
1458
1KSMB6.8A-DG
0.1791
MFR Recommended
SM6T6V8AY
STMicroelectronics
19012
SM6T6V8AY-DG
0.0014
MFR Recommended
SMBJP6KE6.8A-TP
Micro Commercial Co
210418
SMBJP6KE6.8A-TP-DG
0.0558
MFR Recommended
TVP06B6V8A-G
Comchip Technology
1206
TVP06B6V8A-G-DG
0.0347
Upgrade
SM6T6V8A
STMicroelectronics
20198
SM6T6V8A-DG
0.0010
Direct

Reviews

5.0/5.0-(Show up to 5 Ratings)
Raccou***EnRêve
Dec 02, 2025
5.0
Les produits sont impeccables et abordables, c’est ce qui me fait revenir chez Di Digi Electronics.
Nuit***ilée
Dec 02, 2025
5.0
DiGi Electronics offre une expérience client sans faille grâce à leur support réactif.
Kise***ikari
Dec 02, 2025
5.0
サポート体制が整っており、アフターケアも抜群です。
Oce***low
Dec 02, 2025
5.0
I've come to trust DiGi Electronics for their consistent product performance.
Vivi***eamer
Dec 02, 2025
5.0
Proper inventory tracking enhances their overall supply chain transparency.
Sta***ail
Dec 02, 2025
5.0
I appreciate their honest approach to pricing and comprehensive after-sale services.
Liv***Lark
Dec 02, 2025
5.0
DiGi Electronics’ support team is proactive and courteous.
Bliss***Beacon
Dec 02, 2025
5.0
The support staff was patient and explained all post-purchase steps clearly.
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Frequently Asked Questions (FAQ)

Can the P6SMB6.8A-E3/5B be safely used to protect a 5V logic line from ESD and surge events without risking false triggering during normal operation?

The P6SMB6.8A-E3/5B has a reverse standoff voltage of 5.8V and a minimum breakdown voltage of 6.45V, which means it will not conduct under normal 5V operation. However, in noisy environments or systems with voltage spikes near 5.8V (e.g., from inductive coupling or supply transients), there is a risk of unintended conduction. For sensitive 5V digital lines, consider a lower standoff TVS like the SMAJ5.0A (5.0V standoff) or add a small series resistor (10–100Ω) to limit current if marginal clamping occurs. Always validate with in-circuit surge testing per IEC 61000-4-5.

Is it safe to replace the P6SMB6.8A-E3/5B with a 1KSMB6.8A in a high-reliability automotive application, and what are the key differences to evaluate?

While both the P6SMB6.8A-E3/5B (Vishay) and 1KSMB6.8A (Bourns) share similar electrical specs (5.8V standoff, 10.5V clamp, 600W peak power), the 1KSMB6.8A is rated for AEC-Q101 qualification, making it more suitable for automotive use. The Vishay part lacks explicit automotive certification, which may violate functional safety or compliance requirements in ISO 26262 contexts. Additionally, verify moisture sensitivity level (MSL) and long-term reliability data—Vishay’s MSL 1 offers unlimited floor life, but Bourns’ equivalent may have tighter handling constraints. For non-automotive designs, either is acceptable; for vehicles, prefer the 1KSMB6.8A or confirm Vishay’s suitability with your compliance team.

What layout and grounding practices are critical when using the P6SMB6.8A-E3/5B on a 2-layer PCB to ensure effective transient suppression without introducing ground bounce or signal integrity issues?

To maximize effectiveness of the P6SMB6.8A-E3/5B, place it as close as possible to the protected connector or interface pin, with minimal trace length between the TVS cathode and the signal line. Use a solid ground pour directly under the anode pad and connect it to the system ground plane with multiple vias to reduce inductance. Avoid routing high-speed signals near the TVS or its ground return path to prevent coupling. On 2-layer boards, dedicate one entire layer to a continuous ground plane—do not split it under the TVS. Poor grounding can increase effective clamping voltage by 20–30% due to inductive overshoot, negating the 10.5V clamp benefit during fast transients (e.g., EFT or ESD).

How does the P6SMB6.8A-E3/5B compare to the SM6T6V8A from STMicroelectronics in terms of long-term reliability under repeated surge stress in industrial environments?

Both the P6SMB6.8A-E3/5B and SM6T6V8A offer 600W peak pulse power and similar clamping characteristics, but the SM6T6V8A is designed for higher surge cycle endurance, typically rated for >1,000 pulses at 80% of Ipp (57.1A), whereas Vishay’s datasheet does not specify cycle life. In industrial settings with frequent load dump or switching transients (e.g., motor drives or relay panels), the SM6T6V8A may offer better long-term reliability. Additionally, the SM6T6V8A includes enhanced thermal management in its DO-214AA package. If your application involves repetitive surges, consider derating the P6SMB6.8A-E3/5B to 50% of its peak rating or switch to a higher-cycle-rated alternative like the SM6T6V8A or Littelfuse SMBJ6.8A.

Can the P6SMB6.8A-E3/5B be used bidirectionally in a circuit that experiences both positive and negative voltage transients, or does it require additional components?

No, the P6SMB6.8A-E3/5B is a unidirectional TVS diode and only clamps positive transients above 6.45V. Negative transients below –0.7V will forward-bias the internal diode, potentially allowing damaging negative voltage to reach the protected circuit. For bidirectional protection (e.g., RS-485 lines, AC-coupled signals, or automotive load dumps), you must either use a bidirectional TVS like the P6SMB6.8CA-E3/5B (same series, 'CA' suffix) or place two P6SMB6.8A-E3/5B devices in inverse series. The latter increases parasitic capacitance and cost, so the bidirectional variant is preferred. Never assume unidirectional TVS diodes provide symmetrical clamping—this is a common design oversight that leads to field failures.

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