My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB68AHE3_A/H
- Part No.:
- P6SMB68AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68AHE3_A/H.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,737
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB68AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 68 V breakdown voltage (VBR = 64.6–71.4 V at IT = 1.0 mA), 58.1 V stand-off voltage (VWM), and clamps transients to ≤92.0 V at 6.5 A peak pulse current (IPPM) under 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial power supplies, and telecom line protection.
For engineers reviewing the P6SMB68AHE3_A/H datasheet, P6SMB68AHE3_A/H pinout, P6SMB68AHE3_A/H application, or P6SMB68AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, SMB (DO-214AA) package compatibility with automated SMT assembly, 600 W peak pulse power rating, and low 0.104 %/°C temperature coefficient of VBR.
Technical Context
This unidirectional TVS diode operates as a clamping device that remains high-impedance below VWM = 58.1 V and rapidly transitions to low-impedance conduction above VBR = 64.6–71.4 V to divert surge energy. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns).
Designed for transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it sustains 100 A non-repetitive forward surge (IFSM) and operates across –65 °C to +150 °C junction temperature range with MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at 1.0 mA test current - defines reliable turn-on threshold for clamping |
| VWM | 58.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | ≤92.0 V at 6.5 A (10/1000 µs) - peak clamped voltage limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling capability for standardized surge waveforms |
| IFSM | 100 A - single half-sine surge current rating (8.3 ms), critical for load-dump immunity |
| TJ max. | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Temp. coeff. of VBR | 0.104 %/°C - quantifies VBR drift over temperature, essential for precision clamping stability |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side reference | Provides return path during transient clamp; must be routed with low-inductance ground plane |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 12 V rail or signal trace) | Receives surge energy from line; polarity-sensitive placement required for unidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor modules |
| Glass passivated junction | Ensures long-term reliability and stable leakage performance under thermal cycling and humidity |
| 600 W peak pulse power (10/1000 µs) | Supports robust immunity against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-4 EFT bursts |
| MSL Level 1 (260 °C peak reflow) | Enables standard lead-free SMT assembly without pre-baking or special handling |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD events) |
Applications
| Automotive Sensor Protection | Industrial Power Supply Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching spikes in 12 V/24 V systems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Limits transient voltage to ≤92.0 V, preventing damage to 5 V or 3.3 V interface ICs while maintaining signal integrity during normal operation. | Use Scenario: Safeguarding AC-DC and DC-DC converter inputs against surges from mains transients, relay contact bounce, and motor drive back-EMF. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input rail (e.g., 48 V or 24 V), coordinated with upstream fuses and downstream regulators. Use Value: Absorbs 600 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 3 (2 kV line-to-line) requirements. |
| Telecom Line Interface | Consumer Device USB/Ethernet Port |
Use Scenario: Shielding Ethernet PHYs, PoE injectors, and DSL line drivers from lightning-induced surges and induced noise on twisted-pair cables. IC Role / Device Role / Timing Role: First-stage protection device on differential pair or common-mode line, mounted adjacent to connector. Use Value: Clamps common-mode transients to <92 V while maintaining <1.0 µA leakage at 58.1 V, preserving signal eye diagram integrity. | Use Scenario: Adding secondary-level surge immunity to USB 2.0 data lines and 5 V VBUS in smart home hubs, set-top boxes, and peripheral docking stations. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on VBUS and D+/D− lines, placed after primary fuse and before ESD diode array. Use Value: Withstands 100 A surge (8.3 ms) and 600 W pulses without latch-up, extending product field life in uncontrolled power environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ68A-E3/52 | Same VBR range (64.6–71.4 V), but SMA package (DO-214AC); lower PPPM = 400 W; RθJA = 120 °C/W | Lower power handling limits use to sub-400 W surge environments; less suitable for automotive load dump | Select when board space allows larger SMA footprint and surge energy is ≤400 W |
| 1.5SMC68AHE3_A | Same VBR/VWM, but SMC (DO-214AB) package; higher PPPM = 1500 W; RθJA = 60 °C/W | Higher power rating supports harsher transients (e.g., ISO 7637-2 Pulse 5b); larger footprint and height | Select when >600 W clamping margin is required and PCB layout accommodates SMC dimensions |
Compared with SMAJ68A-E3/52, P6SMB68AHE3_A/H delivers 50 % higher peak pulse power in a smaller SMB footprint; versus 1.5SMC68AHE3_A, it trades 2.5× power headroom for 40 % board area reduction and AEC-Q101 qualification out-of-box.
Availability
P6SMB68AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial power conversion, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for P6SMB68AHE3_A/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in automotive, industrial, and communications systems - delivering AEC-Q101-qualified, surface-mount TVS solutions with consistent clamping performance and automated assembly readiness.
FAQ
What is the clamping voltage of the P6SMB68AHE3_A/H under maximum rated surge current?
The P6SMB68AHE3_A/H clamps to a maximum of 92.0 V when subjected to its rated peak pulse current of 6.5 A using the standard 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and represents the upper limit of voltage seen by protected circuitry during a transient event. The P6SMB68AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is the P6SMB68AHE3_A/H suitable for automotive applications?
Yes, the P6SMB68AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix "HE3" indicating RoHS-compliant and AEC-Q101-qualified construction. It meets stringent requirements for under-hood and body-control module environments, including operation from –65 °C to +150 °C junction temperature and immunity to load dump (ISO 7637-2 Pulse 5a). The P6SMB68AHE3_A/H is commonly deployed in engine management, ADAS camera modules, and infotainment power rails.
What does the "HE3" and "_A/H" suffix in P6SMB68AHE3_A/H signify?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, while "_A/H" specifies packaging: "A" indicates the base P6SMB68A variant (unidirectional, 68 V VBR), and "H" identifies the 7-inch plastic tape-and-reel delivery format (750 units per reel). This full ordering code confirms the part is the AEC-Q101-qualified, unidirectional 68 V TVS in SMB package supplied in standard SMT-compatible reel packaging. The P6SMB68AHE3_A/H is not a sample or engineering variant - it is the production-qualified version.
How does the P6SMB68AHE3_A/H compare to bidirectional TVS diodes like P6SMB68CA?
The P6SMB68AHE3_A/H is unidirectional and intended for DC line protection where polarity is fixed (e.g., 12 V supply rail), offering lower leakage (<1.0 µA at 58.1 V) and tighter VBR tolerance than its bidirectional counterpart P6SMB68CA. The P6SMB68CA supports AC or floating signal lines but exhibits higher leakage and symmetric clamping in both directions. For automotive 12 V systems, the P6SMB68AHE3_A/H provides superior DC blocking and is preferred unless bipolar transients demand bidirectional clamping.
What is the thermal resistance and derating behavior of the P6SMB68AHE3_A/H?
The P6SMB68AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads. Its peak pulse power must be derated linearly above TA = 25 °C per Figure 2 in the datasheet - for example, at 85 °C ambient, PPPM is reduced to approximately 420 W. The P6SMB68AHE3_A/H retains full 600 W rating only at TA ≤ 25 °C with proper PCB copper thermal relief.
P6SMB68AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB68AHE3_A/H FAQ
1.How can I place an order for P6SMB68AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68AHE3_A/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB68AHE3_A/H reliable?
The price and inventory of P6SMB68AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB68AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68AHE3_A/H?
P6SMB68AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68AHE3_A/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB68AHE3_A/H?
For technical support, including P6SMB68AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB68AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB68AHE3_A/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB68AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB68AHE3_A/H?
All P6SMB68AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68AHE3_A/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB68AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB68AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB68AHE3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
