My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMP43HM3/85A
~~2.jpg)
- Part No.:
- TPSMP43HM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP43HM3/85A.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,226
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMP43HM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of signal lines and power rails. It features 43 V breakdown voltage (VBR min/max = 38.7–47.3 V), 400 W peak pulse power (10/1000 µs), 6.5 A peak pulse current (IPPM), 36.8 V stand-off voltage (VWM), and 61.9 V clamping voltage (VC) at IPPM, enabling robust surge suppression in automotive sensor interfaces.
For engineers reviewing the TPSMP43HM3/85A datasheet, TPSMP43HM3/85A pinout, TPSMP43HM3/85A application, or TPSMP43HM3/85A equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, low-profile 1.0 mm height, MSL Level 1 reflow compatibility, and unidirectional polarity with cathode band marking - all critical for automotive-grade PCB-level ESD and surge protection design.
Technical Context
The TPSMP43HM3/85A employs passivated anisotropic rectifier technology optimized for high-power-density transient suppression. Its unidirectional architecture provides low forward voltage (2.5 V at 25 A) and fast response time to clamp transients before downstream IC damage occurs.
Rated for operation from –65 °C to +185 °C and qualified per AEC-Q101, it delivers stable clamping performance under thermal stress. The device meets J-STD-020 MSL Level 1 with 260 °C peak reflow profile and uses matte tin-plated leads compliant with JESD 22-B102 and J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 38.7 V / 47.3 V - Ensures reliable triggering above system operating voltage while maintaining margin against false triggering |
| VWM | 36.8 V - Maximum continuous reverse voltage the device blocks without leakage exceeding 1 μA |
| VC @ IPPM | 61.9 V - Clamped voltage seen by protected circuit during 6.5 A 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 400 W - Peak pulse power handling capability for standardized lightning/surge immunity per IEC 61000-4-5 |
| IFSM | 40 A - Surge current withstand for 10 ms half-sine wave, supporting load dump and inductive switching events |
| TJ max | +185 °C - Enables use in under-hood automotive environments without derating penalties |
| Package | DO-220AA (SMP) - 1.0 mm typical height, 2.67 mm × 1.88 mm footprint, optimized for automated SMT placement |
Pinout & Package
DO-220AA (SMP) surface-mount package: 2-terminal unidirectional configuration with cathode indicated by color band. Matte tin-plated leads meet J-STD-002 solderability requirements; halogen-free, RoHS-compliant, and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/line side terminal | Connected to protected signal or power line; conducts during forward surge events (e.g., load dump) |
| Cathode | Output/load side terminal | Marked with color band; ties to ground or return path; defines unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 185 °C maximum junction temperature | Eliminates thermal derating in high-ambient under-hood designs, preserving full surge rating up to +125 °C ambient |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without preconditioning or baking, reducing manufacturing complexity |
| Low-profile 1.0 mm height | Minimizes board space and mechanical interference in tight-fit modules such as camera ECUs and radar sensors |
| Passivated anisotropic rectifier technology | Delivers stable VBR tolerance (±5 % for 'A' variants) and low incremental surge resistance for consistent clamping |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units against ISO 7637-2 pulses and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before reaching sensitive analog front-end or transceiver ICs. Use Value: Withstands 400 W surges and clamps to 61.9 V, ensuring protected ICs remain within absolute maximum ratings during load dump and jump-start events. |
Use Scenario: Safeguarding digital input/output channels on programmable logic controller (PLC) modules exposed to field wiring surges and inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point to shunt induced transients on 24 V DC I/O lines before reaching isolation barriers or microcontrollers. Use Value: 36.8 V VWM matches standard 24 V industrial supply rails; 6.5 A IPPM handles repetitive 1 kV/500 A surge tests per IEC 61000-4-5. |
| Consumer Power Adapter Protection | Automotive Body Control Module |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters and USB PD chargers against output short-circuit recovery spikes and capacitor discharge transients. IC Role / Device Role / Timing Role: Fast-response TVS across regulated DC output to limit voltage overshoot during sudden load removal or feedback loop instability. Use Value: 2.5 V forward voltage enables low-loss conduction during forward surges; 1.0 mm height allows integration into compact adapter PCBs without height conflicts. |
Use Scenario: Protecting LIN bus nodes and LED driver outputs in door modules, seat controllers, and lighting ECUs against battery reverse connection and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed on LIN data line and switched 12 V outputs to absorb ESD (IEC 61000-4-2) and conducted noise (ISO 11452-4). Use Value: AEC-Q101 qualification and 185 °C TJ ensure long-term reliability in thermally constrained interior modules with no derating required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A | DO-214AC (SMA) package; 43 V VBR; 400 W PPPM; 6.5 A IPPM; 64.5 V VC; 1.9 mm height | Larger footprint (4.5 mm × 2.7 mm) and taller profile limits use in ultra-thin automotive modules | Select when legacy SMA layout exists or higher thermal mass is needed; not drop-in due to package mismatch |
| TPSMP43A | Same DO-220AA package; ±5 % VBR tolerance (40.9–45.2 V); identical PPPM, VC, and TJ rating; differs only in marking code (BZP) and tighter tolerance | No functional difference; suitable for designs requiring tighter breakdown voltage control | Direct form-fit-function replacement; same footprint, thermal behavior, and surge performance |
Compared with SMAJ43A, TPSMP43HM3/85A offers 45 % lower profile and 30 % smaller footprint for space-constrained automotive modules; compared with TPSMP43A, it shares identical electrical and thermal specs but carries ±10 % VBR tolerance and different reel packaging (85A vs. standard HM3).
Availability
TPSMP43HM3/85A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and consumer power adapter surge suppression requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for TPSMP43HM3/85A 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, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The TPSMP series belongs to Vishay's high-power-density PAR® transient suppressor family, engineered specifically for AEC-Q101-compliant overvoltage protection in space- and thermal-constrained automotive electronics.
FAQ
What is the breakdown voltage range for TPSMP43HM3/85A?
The TPSMP43HM3/85A has a specified breakdown voltage (VBR) range of 38.7 V to 47.3 V at 1.0 mA test current, per the Vishay datasheet revision 22-Jul-16. This ±10 % tolerance ensures reliable triggering above nominal 36.8 V stand-off voltage while accommodating process variation. The value is measured using a square-wave pulse per ANSI/IEEE C62.35 standards.
Is TPSMP43HM3/85A AEC-Q101 qualified?
Yes, TPSMP43HM3/85A is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet under "FEATURES" and "MECHANICAL DATA" sections. Its qualification supports use in automotive powertrain, chassis, and body electronics where reliability under thermal cycling, humidity, and mechanical shock is mandatory.
What is the clamping voltage of TPSMP43HM3/85A at its rated peak pulse current?
The TPSMP43HM3/85A clamps to a maximum of 61.9 V at its rated peak pulse current (IPPM) of 6.5 A under 10/1000 µs waveform conditions. This value is critical for ensuring downstream ICs remain within their absolute maximum voltage ratings during surge events, and is verified per standardized test methods in the datasheet.
What package type does TPSMP43HM3/85A use, and what are its key mechanical dimensions?
TPSMP43HM3/85A uses the DO-220AA (SMP) package: 2.67 mm × 1.88 mm footprint with 1.0 mm typical height. Its cathode is marked by a color band, and terminals are matte tin-plated for J-STD-002 solderability. The package meets UL 94 V-0 flammability rating and is MSL Level 1 compatible.
How does TPSMP43HM3/85A differ from TPSMP43A?
TPSMP43HM3/85A and TPSMP43A share identical electrical specs (VBR, VC, PPPM, TJ), DO-220AA package, and AEC-Q101 qualification. The difference lies in VBR tolerance: TPSMP43HM3/85A is ±10 % (38.7–47.3 V), while TPSMP43A is ±5 % (40.9–45.2 V). The 'HM3/85A' suffix denotes halogen-free, RoHS-compliant tape-and-reel packaging (10,000 pcs per 13″ reel).
TPSMP43HM3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- Power - Peak Pulse:
- 400W
- 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-220AA (SMP)
TPSMP43HM3/85A FAQ
1.How can I place an order for TPSMP43HM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP43HM3/85A 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 TPSMP43HM3/85A reliable?
The price and inventory of TPSMP43HM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP43HM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP43HM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP43HM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP43HM3/85A?
TPSMP43HM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP43HM3/85A 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 TPSMP43HM3/85A?
For technical support, including TPSMP43HM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP43HM3/85A requirements.
6.How does Aetrix verify that TPSMP43HM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP43HM3/85A 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 TPSMP43HM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP43HM3/85A?
All TPSMP43HM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP43HM3/85A, 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 TPSMP43HM3/85A part is unused and in its original packaging.
Return procedure for TPSMP43HM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP43HM3/85A 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 …
