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Vishay General Semiconductor - Diodes Division TPSMC12AHE3_B/H
- Part No.:
- TPSMC12AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC12AHE3_B/H.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,155
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Product details
Overview
TPSMC12AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 12 V nominal breakdown voltage (VBR = 11.4–12.6 V at 1 mA), 10.2 V stand-off voltage (VWM), 16.7 V maximum clamping voltage (VC) at 89.8 A peak pulse current, 1500 W peak pulse power (10/1000 μs), and operates up to +185 °C junction temperature - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC12AHE3_B/H datasheet, TPSMC12AHE3_B/H pinout, TPSMC12AHE3_B/H application, or TPSMC12AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1500 W surge capability, and compatibility with high-reliability automotive PCB layouts requiring RoHS-compliant, matte tin-plated leads.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and switching-induced transients. Its junction design supports stable clamping performance across -65 °C to +185 °C operating range, with temperature coefficient of VBR at +0.070 %/°C.
The device is rated for non-repetitive 8.3 ms half-sine surge current up to 200 A (IFSM) and delivers consistent clamping under 10/1000 μs waveform conditions when mounted on 8.0 mm × 8.0 mm copper pads - critical for thermal management in automotive engine control units and industrial motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V at 1 mA - defines precise voltage threshold where clamping initiates under transient stress |
| VWM | 10.2 V - maximum continuous reverse voltage before leakage exceeds 2.0 μA, ensuring no false triggering in normal operation |
| VC @ IPPM | 16.7 V at 89.8 A - clamped voltage during 1500 W surge event, limiting downstream IC stress to safe levels |
| PPPM | 1500 W (10/1000 μs) - peak transient energy handling capacity compatible with ISO 7637-2 Pulse 1/2a/5a test profiles |
| TJ max. | +185 °C - enables use in under-hood automotive environments without derating in most mounting configurations |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation toward protected line |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 8.13 mm body length and 3.20 mm width for automated assembly |
Pinout & Package
TPSMC12AHE3_B/H uses the SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, cathode indicated by color band, compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage events |
| Cathode | Protected line connection | Connected to line being safeguarded (e.g., 12 V supply rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Junction passivation | Reduces leakage drift and improves long-term stability under high-temperature bias conditions (>150 °C) |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely at ≤30 °C/60% RH without baking prior to reflow |
| Low incremental surge resistance | Enables tighter VC/VBR ratio (1.39×), minimizing voltage overshoot during fast-rising transients |
| 185 °C TJ rating | Supports placement near heat sources (e.g., power MOSFETs) without thermal derating in engine control modules |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VIN and GND to limit transient excursions below IC absolute maximum ratings. Use Value: Clamps to 16.7 V at 89.8 A, preventing damage to 20 V-rated LDOs and MCU I/Os during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay coil flyback. IC Role / Device Role / Timing Role: Transient shunt connected across signal and return paths to absorb inductive kick energy. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amp input stages experience destructive overvoltage. |
| Consumer Device USB Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-level protection on VBUS line of USB-C ports in portable medical monitors subjected to ESD and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary common-mode choke to handle differential-mode surges. Use Value: 10.2 V VWM allows full 5 V USB operation while clamping ESD pulses to <17 V, preserving USB PHY integrity. |
Use Scenario: Front-end protection on Ethernet PHY power rails in telecom base station line cards facing lightning-induced surges. IC Role / Device Role / Timing Role: High-power unidirectional suppressor mounted at board edge to divert bulk surge energy before reaching DC-DC converters. Use Value: 1500 W PPPM rating sustains multiple 10/1000 μs surges without degradation, meeting GR-1089-CORE Level 4 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12AHE3/52 | Lower PPPM (600 W), SMB package (smaller footprint), same VBR range and AEC-Q101 qualification | Better suited for space-constrained consumer electronics; insufficient for automotive load dump per ISO 16750-2 | Select TPSMC12AHE3_B/H when 1500 W surge margin or SMC thermal mass is required for industrial/automotive deployment |
| TPSMC12AHM3_B/H | Halogen-free variant with identical electrical specs, same RoHS compliance and AEC-Q101 qualification | Required for strict halogen-free manufacturing programs (e.g., EU automotive Tier 1 suppliers) | Choose TPSMC12AHE3_B/H for standard RoHS compliance; select HM3 suffix only if halogen-free material declaration is mandatory |
Compared with SMBJ12AHE3/52 and TPSMC12AHM3_B/H, the TPSMC12AHE3_B/H provides higher surge robustness in the same qualified automotive platform, making it optimal for under-hood applications where thermal mass and peak power handling outweigh footprint constraints.
Availability
TPSMC12AHE3_B/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom line card surge suppression requiring stable component supply, AEC-Q101 traceability, and RoHS compliance.
Supply support for TPSMC12AHE3_B/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, TVS devices, and optoelectronics with emphasis on reliability, high-temperature operation, and automotive qualification.
The TPSMC12AHE3_B/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for harsh-environment transient suppression in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the meaning of the "HE3" and "B/H" suffixes in TPSMC12AHE3_B/H?
The "HE3" suffix indicates RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads and JESD 201 Class 2 whisker resistance. "B/H" denotes revision code "B" and packaging in 7-inch plastic tape and reel with 850 units per reel - confirmed in Vishay's ordering information table for TPSMC12AHE3_B/H.
Is TPSMC12AHE3_B/H suitable for bidirectional transient protection?
No, TPSMC12AHE3_B/H is unidirectional only, as explicitly stated in the FEATURES section of the datasheet. It protects against positive transients on the cathode side relative to anode. For bidirectional protection, a separate device such as SMAJ12A or a dual-diode array would be required - TPSMC12AHE3_B/H does not support reverse-polarity clamping.
Does TPSMC12AHE3_B/H meet J-STD-020 moisture sensitivity requirements?
Yes, TPSMC12AHE3_B/H meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This is documented in the MECHANICAL DATA section and verified by Vishay's qualification testing - no dry-pack or baking is required prior to assembly.
What is the maximum clamping voltage of TPSMC12AHE3_B/H under standard test conditions?
The maximum clamping voltage (VC) of TPSMC12AHE3_B/H is 16.7 V at 89.8 A peak pulse current (IPPM) using a 10/1000 μs waveform, as specified in the ELECTRICAL CHARACTERISTICS table. This value is measured with device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards.
Can TPSMC12AHE3_B/H replace older TPSMC12A variants without layout changes?
Yes, TPSMC12AHE3_B/H uses the same SMC (DO-214AB) package as legacy TPSMC12A parts, with identical mechanical dimensions and pinout - confirmed by Vishay's PACKAGE OUTLINE DIMENSIONS drawing. No PCB redesign is needed, though users should verify AEC-Q101 qualification and RoHS status align with program requirements.
TPSMC12AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 89.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
TPSMC12AHE3_B/H FAQ
1.How can I place an order for TPSMC12AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC12AHE3_B/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 TPSMC12AHE3_B/H reliable?
The price and inventory of TPSMC12AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC12AHE3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMC12AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC12AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC12AHE3_B/H?
TPSMC12AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC12AHE3_B/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 TPSMC12AHE3_B/H?
For technical support, including TPSMC12AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC12AHE3_B/H requirements.
6.How does Aetrix verify that TPSMC12AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC12AHE3_B/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 TPSMC12AHE3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC12AHE3_B/H?
All TPSMC12AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC12AHE3_B/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 TPSMC12AHE3_B/H part is unused and in its original packaging.
Return procedure for TPSMC12AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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