My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB6.8AHM3_A/I
- Part No.:
- TPSMB6.8AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB6.8AHM3_A/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,365
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB6.8AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at IT = 10 mA), 5.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 10.5 V clamping voltage at 57.1 A, and operates up to TJ = +185 °C - deployed in automotive ECUs, industrial sensor interfaces, and telecom power supply protection.
For engineers reviewing the TPSMB6.8AHM3_A/I datasheet, TPSMB6.8AHM3_A/I pinout, TPSMB6.8AHM3_A/I application, or TPSMB6.8AHM3_A/I equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and clamping performance under repetitive 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its junction passivation enables reliable operation at TJ = 185 °C and supports AEC-Q101 qualification for automotive use.
The device delivers fast response time and excellent clamping capability with VC = 10.5 V at IPPM = 57.1 A (10/1000 µs), while maintaining low leakage (IR ≤ 500 µA at VWM = 5.8 V, TA = 25 °C) and meeting MSL Level 1 per J-STD-020 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V at IT = 10 mA - defines precise voltage threshold where avalanche conduction begins under transient stress. |
| VWM | 5.8 V - maximum continuous reverse operating voltage before significant leakage; ensures no false triggering during normal operation. |
| VC @ IPPM | 10.5 V at 57.1 A (10/1000 µs) - clamped voltage seen by protected circuit; determines safe overvoltage margin for downstream ICs. |
| PPPM | 600 W - peak surge power handling capacity; validates robustness against common inductive load-switching events. |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, DC-DC converters) without derating concerns. |
| Polarity & Package | Unidirectional, SMB (DO-214AA) - standard SMT footprint compatible with automated assembly; cathode band identifies polarity. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, MSL Level 1 (260 °C peak reflow). Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or transient clamping | Connected to lower-potential side of protected line (e.g., GND or return path); completes clamping loop when cathode is tied to rail. |
| Cathode | Current exit terminal during avalanche clamping | Connected to protected line (e.g., 5 V rail or signal trace); initiates clamping when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier design | Enables stable VBR drift <0.047 %/°C and supports 185 °C operation without parameter shift or reliability degradation. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock - required for ECU, ADAS, and body control modules. |
| 600 W peak pulse power (10/1000 µs) | Withstands ≥57.1 A surge current without failure - sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3/4 transients. |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage stress on protected devices - critical for 5 V logic ICs and low-voltage microcontrollers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 5 V power domains in engine control units (ECUs) from load-dump and inductive kickback during relay or solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp transients above 5.8 V before they reach MCU power pins. Use Value: Prevents latch-up or permanent damage to 5 V microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events (up to 100 V, 400 ms). |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and field wiring surges. IC Role / Device Role / Timing Role: TVS mounted across signal and return paths to limit differential-mode transients to <10.5 V peak. Use Value: Maintains signal integrity and prevents ADC saturation or op-amp input stage damage during IEC 61000-4-2 ±8 kV contact discharge. |
| Telecom DC-DC Input Stage | Consumer USB Power Delivery Interface |
|
Use Scenario: Safeguarding primary-side inputs of isolated DC-DC converters in base station power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on 48 V input rail to shunt energy before it reaches MOSFET gate drivers and controller ICs. Use Value: Absorbs 600 W pulses without thermal runaway, enabling compliance with ITU-T K.20/21 immunity requirements. |
Use Scenario: Adding secondary-level surge protection on VBUS lines of USB-C PD ports in laptops and docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary fuse and upstream of buck converter to handle hot-swap and cable-insertion spikes. Use Value: Limits VBUS overshoot to ≤10.5 V during 10/1000 µs surges, preserving PD controller and port-power switch functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same SMB package, 600 W rating, but VBR = 7.14–7.88 V (min/max), VC = 11.2 V @ 53.5 A; not AEC-Q101 qualified. | Lacks automotive qualification; suitable for industrial/commercial designs where extended temperature validation is not required. | Select SMBJ6.8A only if AEC-Q101 compliance is unnecessary and higher VBR tolerance is acceptable. |
| TPSMB6.8AHE3_A/I | Identical electrical specs and SMB package, but HE3 suffix indicates RoHS-compliant AEC-Q101 qualification without halogen-free requirement. | Same automotive use cases; differs only in material compliance (halogen-free vs. standard RoHS). | Choose TPSMB6.8AHE3_A/I if halogen-free content is not mandated; otherwise TPSMB6.8AHM3_A/I meets stricter environmental standards. |
Compared with SMBJ6.8A and TPSMB6.8AHE3_A/I, the TPSMB6.8AHM3_A/I uniquely combines halogen-free construction, AEC-Q101 qualification, and tight 6.45–7.14 V VBR range - making it optimal for next-generation automotive modules requiring both regulatory compliance and precise clamping thresholds.
Availability
TPSMB6.8AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC-DC input staging requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMB6.8AHM3_A/I 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive environments.
The TPSMB6.8AHM3_A/I belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for high-temperature, high-surge applications where AEC-Q101 qualification and 185 °C junction operation are mandatory.
FAQ
What is the exact breakdown voltage range for TPSMB6.8AHM3_A/I?
The TPSMB6.8AHM3_A/I has a guaranteed breakdown voltage range of 6.45 V to 7.14 V at test current IT = 10 mA, measured per ANSI/IEEE C62.35. This narrow VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage protection design for 5 V systems.
Is TPSMB6.8AHM3_A/I AEC-Q101 qualified?
Yes, TPSMB6.8AHM3_A/I is fully AEC-Q101 qualified - confirmed by Vishay's documentation (Document Number 88406, Revision 23-Jan-2024). The HM3 suffix explicitly denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, validated for automotive underhood and chassis applications.
What does the "HM3" suffix mean in TPSMB6.8AHM3_A/I?
The "HM3" suffix in TPSMB6.8AHM3_A/I indicates halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. It distinguishes this variant from HE3 (RoHS-compliant and AEC-Q101 qualified but not halogen-free) and standard non-automotive versions - critical for compliance-driven automotive BOMs.
What is the clamping voltage of TPSMB6.8AHM3_A/I at rated surge current?
The TPSMB6.8AHM3_A/I clamps to a maximum of 10.5 V at its peak pulse current IPPM = 57.1 A (10/1000 µs waveform). This low VC ensures protected 5 V ICs remain within absolute maximum ratings during transient events, reducing risk of latch-up or parametric failure.
Can TPSMB6.8AHM3_A/I be used in place of TPSMB6.8AHE3_A/I?
TPSMB6.8AHM3_A/I and TPSMB6.8AHE3_A/I share identical electrical specifications and SMB packaging, differing only in material compliance: HM3 is halogen-free, HE3 is RoHS-compliant but not halogen-free. They are functionally interchangeable where halogen-free content is not mandated.
TPSMB6.8AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB6.8AHM3_A/I FAQ
1.How can I place an order for TPSMB6.8AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB6.8AHM3_A/I 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 TPSMB6.8AHM3_A/I reliable?
The price and inventory of TPSMB6.8AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB6.8AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB6.8AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB6.8AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB6.8AHM3_A/I?
TPSMB6.8AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB6.8AHM3_A/I 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 TPSMB6.8AHM3_A/I?
For technical support, including TPSMB6.8AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB6.8AHM3_A/I requirements.
6.How does Aetrix verify that TPSMB6.8AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB6.8AHM3_A/I 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 TPSMB6.8AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB6.8AHM3_A/I?
All TPSMB6.8AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB6.8AHM3_A/I, 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 TPSMB6.8AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMB6.8AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB6.8AHM3_A/I 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 …
