My Inquiry
My Account
Microchip Technology 1PMT5953/TR7
- Part No.:
- 1PMT5953/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5953/TR7.pdf
- Description:
- DIODE ZENER 150V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,198
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5953/TR7 from Microsemi is a 150 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 2.5 mA test current (IZT), 600 Ω dynamic impedance (ZZT), and 1 µA max reverse leakage at 120 V (IR). It serves as a precision voltage reference or overvoltage clamp in industrial power supplies and automotive control modules.
For engineers reviewing the 1PMT5953/TR7 datasheet, 1PMT5953/TR7 pinout, 1PMT5953/TR7 application, or 1PMT5953/TR7 equivalent, key selection criteria include its 150 V nominal Zener voltage, 3.0 W thermal capability via metallic tab, DO-216 mechanical outline, ESD rating >16 kV HBM, and compatibility with automated SMT insertion equipment.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage regulation across variable load and line conditions. Its full metallic bottom and integral locking tab provide low thermal resistance (30°C/W junction-to-TAB1) and reliable heat transfer during sustained 3.0 W dissipation.
The device exhibits tight knee characteristics (IZK = 0.25 mA, ZZK = 6000 Ω) and low reverse leakage (1 µA at VR = 120 V), enabling accurate clamping in high-impedance sensing circuits and robust protection in 24–48 V industrial bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 150 V ±5% at IZT = 2.5 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient suppression without external heatsink |
| Dynamic Impedance | 600 Ω at IZT - ensures minimal voltage shift under small-signal current variations |
| Reverse Leakage | 1 µA max at VR = 120 V - supports low-power standby operation and high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct PCB copper pour thermal coupling for sustained power handling |
| ESD Rating | >16 kV per HBM - provides intrinsic system-level ESD robustness without added protection components |
| Knee Current | 0.25 mA - establishes minimum operating current for stable regulation onset |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit return path |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | DO-216 footprint with 3.0 W rating - replaces larger through-hole Zeners without layout redesign |
| Full metallic bottom | Eliminates solder flux entrapment - improves long-term reliability in high-humidity environments |
| Integral heat-sink locking tab | Provides mechanical anchoring and thermal conduction - enhances thermal cycling endurance and power stability |
| ESD robustness | >16 kV HBM - reduces need for external TVS or RC filtering in board-level ESD protection schemes |
Applications
| Industrial Power Supply Clamping | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Clamp transient spikes on 24 V rail during load dump events in PLC power stages. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and overvoltage protector. Use Value: 150 V breakdown withstands ISO 7637-2 Pulse 5a (120 V surge) with margin; 3.0 W rating sustains energy without failure. |
Use Scenario: Provide stable 150 V reference for analog sensor excitation in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric ADC biasing. Use Value: ±5% tolerance and low ZZT ensure <±0.5 V drift over temperature and current variation. |
| Telecom Line Interface Protection | Renewable Energy Inverter Monitoring |
Use Scenario: Protect RS-485 transceiver inputs against induced surges on outdoor communication lines. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage surge protection network. Use Value: 1 µA IR at 120 V minimizes loading on high-impedance receiver nodes; DO-216 fits dense telecom layouts. |
Use Scenario: Monitor DC-link voltage in solar microinverters using resistive divider with Zener stabilization. IC Role / Device Role / Timing Role: Voltage reference stabilizer for feedback divider network. Use Value: 30°C/W thermal resistance enables direct mounting to aluminum heatsink for continuous 150 V monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ150A | TVS diode, 150 V standoff, 200 W peak pulse power, unidirectional - not a regulated Zener | Designed for transient suppression only; lacks stable DC regulation at low currents | Select when surge energy absorption dominates; avoid where precise DC reference is required |
| BZX84-C150 | SOT-23 Zener, 150 V ±5%, 300 mW - 10× lower power rating, no metallic thermal tab | Limited to low-power biasing; cannot sustain 3.0 W clamping duty cycles | Select for space-constrained signal-level references; avoid in power rail protection |
Compared with SMCJ150A and BZX84-C150, the 1PMT5953/TR7 uniquely combines 150 V Zener regulation, 3.0 W continuous dissipation, and DO-216 thermal design - making it the only option among the three suitable for sustained high-energy clamping in industrial power systems.
Availability
1PMT5953/TR7 is available at Aetrix Electronics and suitable for industrial power supply clamping, automotive ECU voltage reference, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5953/TR7 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The Powermite® Zener series was designed for high-power surface-mount voltage regulation in space-constrained, thermally demanding applications - delivering through-hole performance in SMT form factor.
FAQ
What is the Zener voltage tolerance for 1PMT5953/TR7?
The 1PMT5953/TR7 has a standard Zener voltage tolerance of ±5% at 150 V nominal, measured at IZT = 2.5 mA and TAB 1 temperature of 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the /TR7 variant uses the standard ±5% grade.
Can 1PMT5953/TR7 be used in place of through-hole Zener diodes like 1N5375B?
Yes, the 1PMT5953/TR7 delivers equivalent 150 V, 3.0 W Zener performance in a surface-mount DO-216 package. Its metallic tab provides comparable thermal performance to the axial-lead 1N5375B, and its footprint allows direct replacement in re-designed PCBs - though mechanical mounting and thermal pad layout must match Powermite® requirements.
What is the maximum reverse voltage before breakdown for 1PMT5953/TR7?
The 1PMT5953/TR7 begins regulating at its nominal Zener voltage of 150 V, with guaranteed breakdown occurring between 142.5 V and 157.5 V (±5%). Its reverse leakage remains ≤1 µA up to 120 V, and it maintains stable regulation across its specified IZT range without abrupt snapback.
How does the Powermite® package improve thermal performance of 1PMT5953/TR7?
The Powermite® package of the 1PMT5953/TR7 features a full metallic bottom and integral locking tab that directly contacts the PCB thermal pad, achieving 30°C/W junction-to-TAB1 thermal resistance. This enables full 3.0 W power dissipation at TAB 1 = 60°C - significantly exceeding standard SMT Zeners without such thermal design.
Is 1PMT5953/TR7 compatible with lead-free reflow processes?
Yes, the 1PMT5953/TR7 is qualified for standard lead-free reflow profiles per J-STD-020. Its molded Powermite® package and metallic terminals withstand peak temperatures up to 260°C, and the device is supplied in EIA-481-compliant tape-and-reel packaging for automated SMT assembly.
1PMT5953/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 150 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 600 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 114 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5953/TR7 FAQ
1.How can I place an order for 1PMT5953/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5953/TR7 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 1PMT5953/TR7 reliable?
The price and inventory of 1PMT5953/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5953/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5953/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5953/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5953/TR7?
1PMT5953/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5953/TR7 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 1PMT5953/TR7?
For technical support, including 1PMT5953/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5953/TR7 requirements.
6.How does Aetrix verify that 1PMT5953/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5953/TR7 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 1PMT5953/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5953/TR7?
All 1PMT5953/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5953/TR7, 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 1PMT5953/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5953/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5953/TR7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
