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P0300LA Alternative / Equivalent / Replacement - TSS Thyristor Surge Suppressor 25V DO-15 | YINT

Source:YINT Electronics Time:2026-08-03 Views:2
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P0300LA Alternative / Equivalent / Replacement - TSS Thyristor Surge Suppressor 25V DO-15 | YINT

Are you searching for a P0300LA alternative, P0300LA equivalent, or P0300LA replacement? YINT Electronics offers a direct P0300LA substitute with identical specs to Littelfuse, Bourns, and STMicroelectronics parts for 25V telecom and data line protection.

1. Product Overview

The P0300LA is a thyristor surge suppressor (TSS) that protects 25V telecom and data lines from lightning and power-cross transients. It has an off-state voltage of 25V, switching voltage of 40V, and on-state voltage of 4V. The device switches from high impedance to a low-voltage crowbar state in nanoseconds and handles 150A surge current in the DO-15 package.

Engineers looking for a P0300LA replacement for Littelfuse, Bourns, STMicroelectronics, or ON Semiconductor can confidently specify YINT's P0300LA. It withstands repeated surges without degradation and is suitable for xDSL, ISDN, and RS-485 interfaces.

2. Key Features

Peak Surge Current: 150A — 2/10us waveform
Off-State Voltage: 25V — Protects 25V telecom lines
Switching Voltage: 40V max — Fast crowbar trigger
On-State Voltage: 4V max — Minimal clamping loss
Holding Current: 25mA min — Latches until surge clears
Capacitance: 80pF max — Signal-transparent
dI/dt: 500 A/us — Handles fast-rising surges
Repeated Surge Capability — No degradation over life
Package: DO-15 — Proven telecom reliability
RoHS Compliant: Lead-free

3. Recommended YINT Alternative for P0300LA

Original Part Number YINT Alternative Device Type Package Notes
P0300LA P0300LA (YINT equivalent) TSS Thyristor DO-15 Drop-in replacement

4. Key Parameters

Part Number P0300LA
Package DO-15
VDRM (V) 25
Vs (V) 40
VT (V) 4
IH (mA) 25
CO (pF) 80
Ipp 2/10us (A) 150
Ipp 8/20us (A) 150
Ipp 10/1000us (A) 45

5. Cross Reference Guide

Brand Original Part YINT Cross
Littelfuse P0300LA P0300LA
Bourns P0300LA (class) P0300LA
STMicroelectronics P0300-class TSS P0300LA
ON Semi P0300-class TSS P0300LA
Diodes Inc. P0300-class TSS P0300LA
Taiwan Semi P0300-class TSS P0300LA
MCC P0300-class TSS P0300LA
Wayon P0300-class TSS P0300LA

6. Applications

  • xDSL and ISDN line interface protection
  • Telecom SLIC and line card surge protection
  • RS-485 and RS-232 data line protection
  • PoE (Power over Ethernet) port protection
  • Security and alarm system communication lines
  • CATV and broadband access equipment
  • ITU-T K.20/K.21 lightning compliance
  • Industrial fieldbus communication ports

7. Why Choose YINT

  • 19+ years of manufacturing expertise since 2006
  • 40+ patents and certifications per MIL-STD and JEDEC
  • Global sales network across North America, Europe, Asia
  • Full TSS family from P0080 to P3800
  • Pin-to-pin compatible with P0300LA from all major brands
  • Engineering team for application assistance
  • Free samples for testing upon request
  • Direct manufacturer pricing with volume discounts

8. FAQ

Q1: Is YINT P0300LA a direct replacement for Littelfuse or Bourns?
A: Yes. Identical specs and DO-15 package. No PCB redesign needed.

Q2: What voltage lines does P0300LA protect?
A: 25V-rated telecom and data lines. The switching voltage is 40V max.

Q3: What is the difference between P0300LA and P0300SA?
A: LA and SA denote package variants (DO-15 through-hole vs SMB surface-mount).

Q4: Can P0300LA handle repeated lightning surges?
A: Yes. TSS crowbar devices withstand repeated surges without degradation.

Q5: What is the off-state capacitance?
A: 80pF max, which keeps signal distortion low on data lines.

Q6: Does YINT provide free samples?
A: Yes. Contact YINT with your project details.

9. Conclusion

YINT Electronics' P0300LA is a reliable, cost-effective replacement for industry-standard TSS thyristor surge suppressors. It delivers 150A surge capability with 40V switching voltage for protecting 25V telecom and data lines. Contact YINT for datasheets, samples, and pricing.

Need Help Finding the Right Alternative?

Contact YINT Electronics at global@yint.com.cn for datasheets, samples, or pricing.