My Inquiry
My Account
Taiwan Semiconductor Corporation P6SMB6.8H
- Part No.:
- P6SMB6.8H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8H.pdf
- Description:
- 600W, 6.8V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,946
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB6.8H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 6.8V, stand-off voltage of 5.5V, and clamping voltage of 10.8V at 58A peak pulse current. It features AEC-Q101 qualification, glass passivated junction, and low leakage (<1μA @ 5.5V), designed for automotive and industrial ESD/inductive load protection in compact DO-214AA (SMB) packages.
For engineers reviewing the P6SMB6.8H datasheet, P6SMB6.8H pinout, P6SMB6.8H application, or P6SMB6.8H equivalent, key selection criteria include its 6.8V VBR min/max (6.12–7.48V), 10.8V VC@IPPM, 1000μA IR @ VWM, 1.0ps response time, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transients.
Technical Context
The P6SMB6.8H operates as a unidirectional avalanche-clamping TVS diode, triggered when reverse voltage exceeds its 6.12–7.48V breakdown range at 10mA test current. Its glass-passivated junction ensures stable VBR temperature coefficient (0.057%/°C) and low leakage under 5.5V stand-off conditions.
Designed for high-energy transient suppression, it delivers 600W non-repetitive peak pulse power (10/1000μs waveform), with thermal resistance RθJC = 10°C/W and RθJA = 55°C/W, enabling reliable operation up to +150°C junction temperature in space-constrained SMB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.12V / 7.48V at IT = 10mA - defines guaranteed avalanche initiation range for robust overvoltage thresholding |
| VWM | 5.5V - maximum continuous reverse operating voltage before significant leakage begins |
| VC@IPPM | 10.8V at 58A - clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| IR @ VWM | <1000μA - ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| PPPSM | 600W - peak pulse power handling per single 10/1000μs transient, meeting ISO 7637-2 requirements |
| Response Time | <1.0ps - enables sub-nanosecond reaction to ESD and fast electrical fast transients (EFT) |
| TJ max | +150°C - supports under-hood automotive and high-temperature industrial environments |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to system ground or low-side return path; conducts during forward surges up to 100A (8.3ms) |
| Cathode | Avalanche clamping terminal | Connects to protected line (e.g., CAN_H, LIN, sensor supply); clamps transients above VBR to VC |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter drift <0.1%/1000h at rated stress |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) without degradation |
| Low-profile SMB package | 3.56mm × 3.94mm footprint enables dense PCB layouts while maintaining 600W surge capability |
| 100% matte tin lead finish | Guarantees solderability per J-STD-002 and eliminates whisker growth risk per JESD201 Class 2 |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5V/12V power rails in engine control units (ECUs), body control modules (BCMs), and lighting drivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp transients before they reach LDOs, microcontrollers, or CAN transceivers. Use Value: Limits voltage excursion to ≤10.8V during 600W pulses, preventing latch-up or permanent damage to 5V-tolerant logic and analog front-ends. | Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature, position) in factory automation PLCs and motor drives against ESD and inductive coupling. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients (<1ns rise time) before reaching precision op-amps or ADC input stages. Use Value: Sub-1μA leakage at 5.5V avoids DC offset errors; 10.8V clamping preserves 12-bit+ measurement accuracy under IEC 61000-4-2 contact discharge. |
| LED Driver Output Protection | Communication Bus Line Protection |
Use Scenario: Shielding constant-current LED driver outputs in automotive headlamps and signage from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Placed across LED string terminals to absorb reverse EMF generated by MOSFET turn-off in buck/boost topologies. Use Value: Withstands 100A surge (8.3ms half-sine) and clamps flyback spikes to ≤10.8V, eliminating need for snubbers and reducing BOM count. | Use Scenario: Protecting LIN bus lines in automotive door modules and HVAC systems from ESD events and cable discharge. IC Role / Device Role / Timing Role: Bidirectional protection not applicable - P6SMB6.8H used on power-supply side (VBAT) feeding LIN transceiver, not data line. Use Value: 5.5V VWM allows safe operation with 5V LIN supply; 10.8V clamping prevents transceiver overvoltage failure during ISO 10605 ±25kV discharges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same DO-214AA package, 600W rating, but VBR = 7.13–7.88V (tighter 10% tolerance vs. P6SMB6.8H's 10–12%); slightly higher VC = 11.3V | Preferred where tighter VBR tolerance is required for precise threshold alignment with 5V logic rails | Select SMBJ6.8A if design requires guaranteed VBR ≥7.13V to avoid false triggering near 5.5V VWM |
| 1.5SMC6.8A | Higher power (1500W), larger DO-214AB (SMC) package; VBR = 7.13–7.88V, VC = 11.5V; same AEC-Q101 qualification | Suitable for higher-energy transients (e.g., 24V truck systems) where PCB area permits larger footprint | Choose 1.5SMC6.8A only when 600W is insufficient and layout allows SMC pad dimensions |
Compared with SMBJ6.8A and 1.5SMC6.8A, the P6SMB6.8H offers optimal cost–performance balance for 5V/12V automotive and industrial rails: lower VC (10.8V vs. 11.3–11.5V) reduces stress on downstream ICs, and its smaller SMB footprint saves board space without sacrificing AEC-Q101 compliance or ISO 7637-2 immunity.
Availability
P6SMB6.8H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, LED driver outputs, and LIN bus power rail protection requiring stable component supply across production lifecycles.
Supply support for P6SMB6.8H 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers, with global distribution and AEC-Q101 validation capabilities.
The P6SMB6.8H belongs to TSC's P6SMBxH series of surface-mount TVS diodes engineered specifically for automotive and industrial transient immunity-designed to replace older SMA/SMB packages with enhanced surge robustness and tighter parametric control.
FAQ
What is the breakdown voltage range of the P6SMB6.8H?
The P6SMB6.8H has a guaranteed breakdown voltage range of 6.12V to 7.48V at 10mA test current (VBR min/max), measured per ANSI/IEEE C62.35. This 6.8V nominal rating reflects the midpoint of the specified range and ensures reliable clamping onset across temperature and manufacturing lot variations. The P6SMB6.8H maintains this specification under AEC-Q101 stress conditions.
Is the P6SMB6.8H suitable for bidirectional transient protection?
No, the P6SMB6.8H is a unidirectional TVS diode intended for DC power line protection only. For bidirectional applications such as data line or AC-coupled signal protection, TSC offers the P6SMB6.8CH variant (with CH suffix), which provides symmetrical clamping in both polarities. Using P6SMB6.8H in reverse-biased configurations risks permanent damage due to lack of reverse avalanche capability.
What is the maximum clamping voltage of the P6SMB6.8H during a 10/1000μs surge?
The P6SMB6.8H exhibits a maximum clamping voltage (VC) of 10.8V at 58A peak pulse current (IPPM) under the standard 10/1000μs waveform. This value is measured at TA = 25°C and represents the worst-case voltage seen by downstream circuitry during full-rated surge events. The P6SMB6.8H achieves this performance while maintaining 600W peak pulse power dissipation.
Does the P6SMB6.8H meet automotive qualification standards?
Yes, the P6SMB6.8H is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. It is also RoHS compliant and halogen-free per IEC 61249-2-21. These qualifications are verified through TSC's certified automotive test lab and documented in version A2102 of the official datasheet for the P6SMB6.8H.
What is the thermal resistance profile of the P6SMB6.8H?
The P6SMB6.8H has a junction-to-case thermal resistance (RθJC) of 10°C/W and junction-to-ambient thermal resistance (RθJA) of 55°C/W under standard JEDEC PCB mounting conditions. These values enable the P6SMB6.8H to sustain its 150°C maximum junction temperature during repetitive surge events when properly heatsinked via PCB copper pour. The P6SMB6.8H's thermal performance is validated per JESD51-2.
P6SMB6.8H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 58A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB6.8H FAQ
1.How can I place an order for P6SMB6.8H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8H 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 P6SMB6.8H reliable?
The price and inventory of P6SMB6.8H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8H is usually 5 days.
3.What payment methods are accepted for P6SMB6.8H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8H?
P6SMB6.8H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8H 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 P6SMB6.8H?
For technical support, including P6SMB6.8H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8H requirements.
6.How does Aetrix verify that P6SMB6.8H is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8H 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 P6SMB6.8H meets industry standards.
7.What is the process for return or replacement of P6SMB6.8H?
All P6SMB6.8H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8H, 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 P6SMB6.8H part is unused and in its original packaging.
Return procedure for P6SMB6.8H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8H 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
