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Vishay General Semiconductor - Diodes Division TPSMB16AHM3_A/H
- Part No.:
- TPSMB16AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB16AHM3_A/H.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,032
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Product details
Overview
TPSMB16AHM3_A/H 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 16.0 V nominal breakdown voltage (VBR), 13.6 V maximum stand-off voltage (VWM), 22.5 V clamping voltage at 26.7 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB16AHM3_A/H datasheet, TPSMB16AHM3_A/H pinout, TPSMB16AHM3_A/H application, or TPSMB16AHM3_A/H equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and verified clamping performance under repetitive 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping with low incremental surge resistance and fast response time (<1 ns). Its junction passivation enables reliable operation under high-temperature stress and automotive-grade reliability testing.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 0.078 %/°C temperature coefficient of VBR, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for automated SMT assembly in harsh-environment applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 15.2 / 16.0 / 16.8 V - ensures precise overvoltage triggering above system operating voltage without false trips |
| VWM | 13.6 V - maximum continuous reverse working voltage compatible with 12 V nominal automotive and industrial rails |
| VC @ IPPM | 22.5 V - clamps transients to safe levels for downstream 24 V-rated ICs and MOSFETs during 26.7 A surge events |
| PPPM | 600 W - sustains standardized 10/1000 µs surge pulses at 0.01 % duty cycle without degradation |
| TJ max. | +185 °C - supports under-hood automotive placement and high-ambient industrial control cabinet use |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in circuit |
| Package | SMB (DO-214AA) - industry-standard 2-pin surface-mount outline with 5.0 mm × 5.0 mm copper pad footprint |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, cathode indicated by color band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); compliant with UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and ESD - enables direct use in vehicle ECUs |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for Tier 1 automotive suppliers and EU industrial equipment without compromising surge robustness |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak - eliminates moisture sensitivity handling constraints |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes overvoltage overshoot during clamping, reducing stress on protected 24 V logic and analog front-ends |
| 185 °C junction capability | Enables placement near heat-generating components (e.g., DC-DC converters) without derating or thermal margin loss |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs from load-dump and alternator ripple transients in engine control units. IC Role / Device Role / Timing Role: Primary clamping element placed between VIN and GND, absorbing >600 W surge energy within nanoseconds. Use Value: Prevents latch-up or permanent damage to MCU power domains while maintaining <22.5 V rail excursion during 26.7 A transients. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and cable discharge events in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS shunting transient energy away from precision op-amp input stages and ADC reference paths. Use Value: Limits induced voltage to ≤22.5 V during 15 kV contact ESD (IEC 61000-4-2), preserving measurement accuracy and avoiding calibration drift. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Surge Suppression |
|
Use Scenario: Safeguarding PoE-powered network switches against induced surges from nearby AC mains wiring and lightning coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS on 48 V DC input rail, activated only during overvoltage events exceeding 13.6 V. Use Value: Maintains uninterrupted operation under repeated 10/1000 µs surges up to 600 W without parameter shift or leakage increase. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Fast-response clamp across motor terminals or H-bridge supply rails to limit back-EMF voltage overshoot. Use Value: Extends MOSFET lifetime by limiting drain-source voltage to 22.5 V during 75 A inductive turn-off events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Same VBR range (15.2–16.8 V), but lower PPPM = 400 W and VC = 25.5 V at 20.8 A; SMB package not identical - SMA (DO-214AC) footprint differs | Limited to lower-energy transients; unsuitable for AEC-Q101 automotive deployment | Select only for cost-sensitive consumer applications where 600 W surge immunity is not required |
| TPSMB16AHE3_A/H | Identical electrical specs and SMB package; differs only in plating - HE3 suffix denotes standard RoHS-compliant tin plating vs. HM3's halogen-free formulation | No functional difference; both AEC-Q101 qualified and MSL Level 1 rated | Choose TPSMB16AHM3_A/H when halogen-free compliance is mandated by OEM or regional environmental regulations |
Compared with SMAJ16A and TPSMB16AHE3_A/H, the TPSMB16AHM3_A/H delivers higher surge robustness (600 W vs. 400 W), tighter clamping (22.5 V vs. 25.5 V), and halogen-free construction - making it optimal for automotive and regulated industrial designs requiring full AEC-Q101 traceability and material compliance.
Availability
TPSMB16AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and consumer appliance motor drives requiring stable component supply with full AEC-Q101 qualification and halogen-free compliance.
Supply support for TPSMB16AHM3_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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMB series belongs to Vishay's PAR® transient voltage suppressor product line, engineered specifically for robust, high-temperature-stable clamping in automotive and industrial environments where AEC-Q101 qualification and 185 °C operation are mandatory.
FAQ
What is the clamping voltage of the TPSMB16AHM3_A/H at its rated peak pulse current?
The TPSMB16AHM3_A/H has a maximum clamping voltage (VC) of 22.5 V at its specified peak pulse current (IPPM) of 26.7 A, measured using the standardized 10/1000 µs waveform. This value is guaranteed per the Vishay datasheet revision 23-Jan-2024 (Document Number: 88406) and reflects actual device behavior under surge conditions - critical for ensuring protected ICs remain within absolute maximum ratings. The TPSMB16AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the TPSMB16AHM3_A/H AEC-Q101 qualified and what does that mean for automotive use?
Yes, the TPSMB16AHM3_A/H is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet under "FEATURES" and "ORDERING INFORMATION". This qualification validates the device against rigorous stress tests including high-temperature operating life, temperature cycling, and ESD - enabling its use in automotive powertrain, body electronics, and ADAS modules without additional qualification effort. The TPSMB16AHM3_A/H meets these requirements with its 185 °C junction rating and halogen-free construction.
How does the TPSMB16AHM3_A/H differ from the TPSMB16AHE3_A/H variant?
The TPSMB16AHM3_A/H and TPSMB16AHE3_A/H share identical electrical specifications, SMB (DO-214AA) package dimensions, and AEC-Q101 qualification. Their sole difference lies in plating: HM3 denotes halogen-free, RoHS-compliant matte tin plating, whereas HE3 uses standard RoHS-compliant tin plating. Both meet JESD 201 Class 2 whisker resistance. The TPSMB16AHM3_A/H is selected when halogen-free compliance is contractually required by automotive OEMs or regional environmental standards.
What is the maximum operating temperature and thermal derating behavior of the TPSMB16AHM3_A/H?
The TPSMB16AHM3_A/H supports a maximum junction temperature (TJ) of +185 °C, with thermal derating defined in Figure 2 of the Vishay datasheet: peak pulse power decreases linearly above 25 °C ambient, reaching ~50 % of rated 600 W at ~125 °C case temperature. This high-TJ rating allows direct placement near heat sources in engine compartments or industrial enclosures. The TPSMB16AHM3_A/H maintains stable VBR with a temperature coefficient of +0.078 %/°C.
Can the TPSMB16AHM3_A/H be used in bidirectional protection configurations?
No, the TPSMB16AHM3_A/H is unidirectional only, as stated in the Vishay datasheet "FEATURES" section. It conducts surge current from cathode to anode only and must be oriented with the banded end toward the protected line. For bidirectional protection, two TPSMB16AHM3_A/H devices would need back-to-back configuration, or a dedicated bidirectional TVS (e.g., TPSMB16CA) should be selected - the TPSMB16AHM3_A/H itself provides no reverse conduction capability.
TPSMB16AHM3_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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 26.7A
- 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)
TPSMB16AHM3_A/H FAQ
1.How can I place an order for TPSMB16AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB16AHM3_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 TPSMB16AHM3_A/H reliable?
The price and inventory of TPSMB16AHM3_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 TPSMB16AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB16AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB16AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB16AHM3_A/H?
TPSMB16AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB16AHM3_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 TPSMB16AHM3_A/H?
For technical support, including TPSMB16AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB16AHM3_A/H requirements.
6.How does Aetrix verify that TPSMB16AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB16AHM3_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 TPSMB16AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB16AHM3_A/H?
All TPSMB16AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB16AHM3_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 TPSMB16AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMB16AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB16AHM3_A/H Tags
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