My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB8.2AHM3_A/H
- Part No.:
- TPSMB8.2AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB8.2AHM3_A/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,559
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB8.2AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive and lightning-induced transients on power rails and signal lines. It features a 8.2 V nominal breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 49.6 V maximum clamping voltage at 49.6 A peak surge current, and operates up to +185 °C junction temperature - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the TPSMB8.2AHM3_A/H datasheet, TPSMB8.2AHM3_A/H pinout, TPSMB8.2AHM3_A/H application, or TPSMB8.2AHM3_A/H equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package mapping, cathode/anode terminal roles, AEC-Q101 qualification status, and real-world use cases in automotive and industrial transient suppression.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable performance under high-temperature stress. Its unidirectional polarity enables forward-biased conduction only during reverse overvoltage events, delivering fast response time and low incremental surge resistance.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), supports 0.01 % duty cycle repetitive operation, and meets MSL level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for automated SMT assembly in automotive-grade production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V at 10 mA - defines precise reverse breakdown threshold for reliable clamping onset |
| VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 100 μA |
| IPPM | 49.6 A (10/1000 µs) - peak surge current capability corresponding to 600 W dissipation |
| VC | 12.1 V - clamping voltage at IPPM, limiting protected circuit voltage during transient |
| TJ max. | +185 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Polarity | Unidirectional - blocks forward current; conducts only during reverse overvoltage events |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA) - surface-mount plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, 0.096 g unit weight, and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from relay switching or load dump without failure |
| Junction temperature rating: -65 °C to +185 °C | Supports extended thermal range in engine control units and industrial motor drives |
| AEC-Q101 qualified (HM3 suffix) | Meets automotive stress test requirements for vibration, thermal shock, and humidity |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow without moisture-related popcorning |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes overvoltage stress on downstream ICs like CAN transceivers and microcontrollers |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between sensor signal line and ground. Use Value: Clamps transients to ≤12.1 V while maintaining <100 μA leakage at 7.02 V, preserving signal integrity. |
Use Scenario: Safeguarding RS-485 transceiver inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected across differential bus lines (A/B to GND). Use Value: Limits surge-induced voltage overshoot to safe levels for 3.3 V/5 V transceivers without affecting DC bias. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
|
Use Scenario: Secondary-side DC input protection in USB-C PD adapters against ESD and capacitive coupling transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–20 V output rails prior to DC-DC converter input. Use Value: Withstands 75 A 8.3 ms surge and maintains 7.02 V working voltage - avoids false triggering during normal operation. |
Use Scenario: Primary protection on telecom line cards handling POTS or xDSL signals subject to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamp on tip/ring lines before hybrid transformer and codec IC. Use Value: Fast response and 600 W rating absorb multi-kV transients while coordinating with gas discharge tube (GDT) upstream stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | 8.0 V VBR min (vs. 7.79 V), 12.0 V VC at 49.2 A, same SMB package, AEC-Q101 not specified | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and tighter VBR tolerance is acceptable |
| TPSMB8.2AHE3_A/H | Same electrical specs, identical VBR/VC/IPPM, but RoHS-compliant HE3 suffix (not halogen-free) | Not halogen-free; may not meet strict automotive material compliance (e.g., GMW3172) | Choose HM3 when halogen-free and full AEC-Q101 compliance are mandatory for Tier 1 supply chain |
Compared with SMBJ8.0A and TPSMB8.2AHE3_A/H, the TPSMB8.2AHM3_A/H uniquely combines halogen-free construction, AEC-Q101 qualification, and 8.2 V nominal breakdown - making it the preferred choice for automotive OEM designs requiring full material and reliability certification.
Availability
TPSMB8.2AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom line card surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPSMB8.2AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade solutions.
The TPSMB series belongs to Vishay's PAR® transient voltage suppressor product line, engineered specifically for robust, high-temperature-stable clamping in automotive powertrain, body electronics, and industrial control systems.
FAQ
What is the breakdown voltage tolerance of TPSMB8.2AHM3_A/H?
The TPSMB8.2AHM3_A/H has a guaranteed breakdown voltage range of 7.79 V (min) to 8.61 V (max) at 10 mA test current, with 8.20 V nominal. This ±5% tolerance ensures consistent clamping behavior across production lots and temperature extremes up to +185 °C, critical for automotive sensor interface protection where overvoltage margin must be tightly controlled.
Is TPSMB8.2AHM3_A/H suitable for bidirectional transient protection?
No, TPSMB8.2AHM3_A/H is unidirectional only - it conducts surge current only when reverse-biased beyond its breakdown voltage. For bidirectional protection (e.g., AC lines or data buses), a separate bidirectional variant such as SMBJ8.0CA or TPSMB8.0CA must be used. The TPSMB8.2AHM3_A/H cathode band must be correctly oriented toward the protected line.
Does TPSMB8.2AHM3_A/H meet AEC-Q101 requirements?
Yes, TPSMB8.2AHM3_A/H is explicitly AEC-Q101 qualified per the Vishay datasheet (Document Number 88406, Revision 23-Jan-2024). The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - validated for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock testing required for automotive under-hood applications.
What is the maximum clamping voltage of TPSMB8.2AHM3_A/H at rated surge current?
The TPSMB8.2AHM3_A/H clamps to a maximum of 12.1 V at its rated peak pulse current of 49.6 A (10/1000 µs waveform). This low VC ensures downstream components - such as 3.3 V or 5 V microcontrollers, CAN transceivers, or ADC front-ends - remain within absolute maximum ratings during transient events.
Can TPSMB8.2AHM3_A/H be used in lead-free reflow processes?
Yes, TPSMB8.2AHM3_A/H is rated MSL Level 1 and qualified for lead-free reflow with a maximum peak temperature of 260 °C per J-STD-020. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102, and the package passes JESD 201 Class 2 whisker testing - ensuring reliable solder joint formation in high-volume SMT assembly.
TPSMB8.2AHM3_A/H 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/H FAQ
1.How can I place an order for TPSMB8.2AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/H reliable?
The price and inventory of TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB8.2AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB8.2AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB8.2AHM3_A/H?
TPSMB8.2AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/H?
For technical support, including TPSMB8.2AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB8.2AHM3_A/H requirements.
6.How does Aetrix verify that TPSMB8.2AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB8.2AHM3_A/H?
All TPSMB8.2AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB8.2AHM3_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 TPSMB8.2AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMB8.2AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB8.2AHM3_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 …
