TD1104 Switch Detector SPST-NO Equivalent & Substitute Parts

Part Overview

The TD1104 is an angled toggle detector switch manufactured by E-Switch, configured as a single-pole single-throw normally-open (SPST-NO) device rated for 100mA DC at 30V. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The switch features through-hole PC pin termination suitable for direct board mounting applications requiring momentary contact operation.

Substiute Parts

TD1104

E-SwitchIn Stock: 925TD1104 Datasheet

Current PartRFQ

DS-02005 (30)

C&KIn Stock: 1122DS-02005 (30) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TD1104 is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: Must be SPST-NO
• Current Rating: Must support minimum 100mA DC
• Voltage Rating: Must support minimum 30V DC
• Actuator Type: Must be angled toggle (detector) configuration
• Mounting Type: Must be through-hole
• Termination Style: Must be PC pin
• Electrical Life: Must meet or exceed 50,000 cycles
• Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The DS-02005 (30) manufactured by C&K satisfies all substitution criteria. Both components share identical circuit configuration, current and voltage ratings, actuator geometry, mounting method, and termination style. Both achieve the required 50,000-cycle electrical life specification and maintain equivalent regulatory compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

The DS-02005 (30) from C&K represents a direct functional equivalent to the obsolete TD1104. Selection between these components should be based on the following factors:

Product Status: The DS-02005 (30) maintains active product status, ensuring ongoing availability and manufacturer support. The TD1104's obsolete classification necessitates transition to an active alternative for new designs and long-term procurement planning.

Regulatory Compliance: Both components maintain identical ROHS3 compliance and REACH unaffected status, satisfying equivalent environmental and regulatory requirements for industrial and commercial applications.

Mechanical Compatibility: Minor variations in operating force (30gf vs. 36gf) and operating position (0.312" vs. 0.321") fall within acceptable mechanical tolerance ranges for detector switch applications. These differences do not compromise functional performance in standard through-hole mounting configurations.

Electrical Performance: Identical current and voltage ratings, circuit configuration, and electrical life specifications ensure direct functional substitution without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the DS-02005 (30) be used as a direct replacement for the TD1104 in existing designs?

A: Yes. Both components share identical electrical specifications (SPST-NO, 100mA DC, 30V DC), actuator type (angled toggle detector), mounting method (through-hole), and termination style (PC pin). The minor mechanical variations (operating force and position) are within acceptable tolerance ranges for detector switch applications and do not require circuit modification.

Q: What is the significance of the "(30)" designation in the DS-02005 part number?

A: The "(30)" indicates the voltage rating specification of 30V DC, matching the TD1104's voltage requirement. This designation ensures proper part selection when multiple voltage variants exist within the DS-02005 series.

Q: Are there any compliance or certification differences between these components?

A: No. Both the TD1104 and DS-02005 (30) maintain identical ROHS3 compliance and REACH unaffected status. No additional certification or compliance verification is required for substitution.

Q: How do the operating force differences affect switch performance?

A: The DS-02005 (30) requires slightly lower actuation force (30gf vs. 36gf). This represents a minor mechanical advantage, reducing operator effort without compromising reliability or electrical performance. This difference is not functionally significant for standard detector switch applications.

Q: What packaging considerations apply to the DS-02005 (30)?

A: The DS-02005 (30) is supplied in bulk packaging, whereas the TD1104 packaging specification was not provided. Verify bulk packaging compatibility with your procurement and assembly processes before finalizing component selection.