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Vishay General Semiconductor - Diodes Division TPSMB8.2AHM3_A/I
- Part No.:
- TPSMB8.2AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB8.2AHM3_A/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,481
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Product details
Overview
TPSMB8.2AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 8.2 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 49.6 V clamping voltage at 12.1 A peak pulse current, and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB8.2AHM3_A/I datasheet, TPSMB8.2AHM3_A/I pinout, TPSMB8.2AHM3_A/I application, or TPSMB8.2AHM3_A/I equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal capability, and verified clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity during fast transient events. Its 10/1000 µs waveform response delivers stable 49.6 V clamping at 12.1 A IPPM with <0.056 %/°C VBR temperature coefficient.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 reflow (260 °C peak), and meets JESD201 Class 2 whisker resistance - confirming suitability for high-reliability automotive PCB assembly and under-hood electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.79–8.61 V at 10 mA test current - defines precise clamping initiation threshold for overvoltage detection |
| Stand-off Voltage VWM | 7.02 V maximum - ensures no conduction during normal 5 V–7 V rail operation |
| Clamping Voltage VC | 49.6 V at 12.1 A IPPM - limits downstream IC stress during 600 W transient events |
| Peak Pulse Power | 600 W (10/1000 µs) - sustains high-energy surges without thermal runaway |
| Junction Temperature Range | −65 °C to +185 °C - enables deployment in engine control units and industrial motor drives |
| Polarity | Unidirectional - protects DC power rails with cathode-anode orientation only |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test requirements |
Pinout & Package
TPSMB8.2AHM3_A/I is housed in an SMB (DO-214AA) surface-mount package with matte tin-plated leads. The cathode is marked by a color band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Receives surge energy during overvoltage events and routes it to ground reference |
| Anode | Reference node | Connected to protected line (e.g., 5 V rail or sensor VDD); completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure reduces leakage drift and improves long-term stability at 150 °C |
| TJ = 185 °C capability | Enables placement near heat sources (e.g., power MOSFETs) without derating penalties |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems with margin |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns or baking requirements |
| Halogen-free & RoHS-compliant | Meets automotive ELV Directive and IPC-1752A material declaration requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between VBAT and GND before LDO input. Use Value: Limits voltage excursions to ≤49.6 V during 600 W surges, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) clamping diode connected between signal line and ground. Use Value: Clamps transients within 1 ns while maintaining signal integrity due to minimal parasitic capacitance at 1 MHz. |
| Consumer USB Power Delivery Protection | Telecom Base Station DC Feed Protection |
Use Scenario: Shielding USB-C PD controller VBUS lines from hot-plug induced overshoot and reverse-voltage faults. IC Role / Device Role / Timing Role: Standoff-rated TVS (7.02 V) placed inline with 5 V–20 V programmable VBUS rail. Use Value: Blocks >7.02 V faults without loading nominal 5 V operation; clamps 20 V surges to 49.6 V before controller IC damage occurs. |
Use Scenario: Securing −48 V DC feed lines in telecom remote radio units against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS mounted between −48 V rail and chassis ground in front-end power stage. Use Value: Withstands repetitive 600 W pulses at −48 V bias and maintains <1 μA leakage at full operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower 8.0 V VBR min (7.6–8.4 V), same SMB package, 400 W PPPM rating | Less robust for 12 V automotive load dump where higher energy handling is required | Select when lower clamping threshold is prioritized over peak power margin |
| SMCJ8.0A | Same VBR range, but SMC (DO-214AB) package - larger footprint, 1500 W PPPM rating | Requires PCB layout change; suited for higher-power industrial AC/DC front ends | Choose only if system-level surge testing exceeds 600 W and board space permits larger package |
Compared with SMAJ8.0A and SMCJ8.0A, the TPSMB8.2AHM3_A/I provides optimal balance of AEC-Q101 qualification, 600 W surge capacity, and SMB footprint - making it the preferred choice for space-constrained automotive modules requiring production-grade reliability without layout revision.
Availability
TPSMB8.2AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer USB power delivery systems, and telecom base station DC feeds requiring stable component supply across extended temperature and surge stress conditions.
Supply support for TPSMB8.2AHM3_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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade performance.
The TPSMB series belongs to Vishay's PAR® transient voltage suppressor product line, engineered specifically for robust, high-temperature-stable clamping in automotive power distribution and industrial control systems.
FAQ
What is the exact breakdown voltage range for TPSMB8.2AHM3_A/I?
The TPSMB8.2AHM3_A/I has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, measured per ANSI/IEEE C62.35 standards. This tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage detection in 5 V–12 V systems where the TPSMB8.2AHM3_A/I is commonly applied.
Is TPSMB8.2AHM3_A/I qualified to AEC-Q101?
Yes, TPSMB8.2AHM3_A/I is AEC-Q101 qualified - confirmed by Vishay's ordering code suffix "HM3", which denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. This qualification covers stress tests including HTGB, H3TRB, and temperature cycling, validating its use in automotive powertrain and body electronics.
What does the "HM3" suffix indicate in TPSMB8.2AHM3_A/I?
The "HM3" suffix in TPSMB8.2AHM3_A/I identifies the device as halogen-free, RoHS-compliant, and AEC-Q101 qualified - distinct from the "HE3" variant which is RoHS-compliant and AEC-Q101 qualified but not halogen-free. Both variants share identical electrical specs and SMB packaging, but HM3 meets stricter automotive material compliance requirements.
Can TPSMB8.2AHM3_A/I be used in bidirectional configurations?
No, TPSMB8.2AHM3_A/I is unidirectional only - explicitly stated in the Vishay datasheet. It conducts only when cathode voltage exceeds anode voltage by ≥VBR. For bidirectional protection (e.g., AC lines or data buses), a separate symmetric TVS like SMAJ8.0CA must be selected; the TPSMB8.2AHM3_A/I cannot be repurposed for reverse-polarity clamping.
What is the maximum clamping voltage of TPSMB8.2AHM3_A/I at rated surge current?
The TPSMB8.2AHM3_A/I clamps to a maximum of 49.6 V at its rated peak pulse current (IPPM) of 12.1 A under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
TPSMB8.2AHM3_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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- 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)
TPSMB8.2AHM3_A/I FAQ
1.How can I place an order for TPSMB8.2AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/I reliable?
The price and inventory of TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB8.2AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB8.2AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB8.2AHM3_A/I?
TPSMB8.2AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/I?
For technical support, including TPSMB8.2AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB8.2AHM3_A/I requirements.
6.How does Aetrix verify that TPSMB8.2AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB8.2AHM3_A/I?
All TPSMB8.2AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMB8.2AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB8.2AHM3_A/I Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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